html/504test-screen.mu.html

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  63 <a href='https://github.com/akkartik/mu/blob/main/504test-screen.mu'>https://github.com/akkartik/mu/blob/main/504test-screen.mu</a>
  64 <pre id='vimCodeElement'>
  65 <span id="L1" class="LineNr">  1 </span><span class="muComment"># Some primitives for checking the state of fake screen objects.</span>
  66 <span id="L2" class="LineNr">  2 </span>
  67 <span id="L3" class="LineNr">  3 </span><span class="muComment"># validate data on screen regardless of attributes (color, bold, etc.)</span>
  68 <span id="L4" class="LineNr">  4 </span><span class="muComment"># Mu doesn't have multi-line strings, so we provide functions for rows or portions of rows.</span>
  69 <span id="L5" class="LineNr">  5 </span><span class="muComment"># Tab characters (that translate into multiple screen cells) not supported.</span>
  70 <span id="L6" class="LineNr">  6 </span>
  71 <span id="L7" class="LineNr">  7 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L7'>check-screen-row</a></span> <a href='500fake-screen.mu.html#L16'>screen</a>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
  72 <span id="L8" class="LineNr">  8 </span>  <a href='504test-screen.mu.html#L11'>check-screen-row-from</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">0</span>/x, y, expected, msg
  73 <span id="L9" class="LineNr">  9 </span><span class="Delimiter">}</span>
  74 <span id="L10" class="LineNr"> 10 </span>
  75 <span id="L11" class="LineNr"> 11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L11'>check-screen-row-from</a></span> _screen: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), x: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
  76 <span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> copy _screen
  77 <span id="L13" class="LineNr"> 13 </span>  <span class="PreProc">var</span> failure-count/<span class="muRegEdi">edi</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
  78 <span id="L14" class="LineNr"> 14 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L244'>screen-cell-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, x, y
  79 <span id="L15" class="LineNr"> 15 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'index', grapheme by grapheme</span>
  80 <span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
  81 <span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> e-addr/<span class="muRegEdx">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address e
  82 <span id="L18" class="LineNr"> 18 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected
  83 <span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">{</span>
  84 <span id="L20" class="LineNr"> 20 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
  85 <span id="L21" class="LineNr"> 21 </span>    compare done?, <span class="Constant">0</span>
  86 <span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">break-if-!=</span>
  87 <span id="L23" class="LineNr"> 23 </span>    <span class="Delimiter">{</span>
  88 <span id="L24" class="LineNr"> 24 </span>      <span class="PreProc">var</span> unused?/eax: boolean <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L513'>screen-cell-unused-at-index?</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
  89 <span id="L25" class="LineNr"> 25 </span>      compare unused?, <span class="Constant">0</span>/false
  90 <span id="L26" class="LineNr"> 26 </span>      <span class="PreProc">break-if-!=</span>
  91 <span id="L27" class="LineNr"> 27 </span>      <span class="PreProc">var</span> _c/eax: code-point <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L531'>screen-code-point-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
  92 <span id="L28" class="LineNr"> 28 </span>      <span class="PreProc">var</span> c/<span class="muRegEbx">ebx</span>: code-point <span class="Special">&lt;-</span> copy _c
  93 <span id="L29" class="LineNr"> 29 </span>      <span class="PreProc">var</span> expected-grapheme/eax: grapheme <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L236'>read-grapheme</a> e-addr
  94 <span id="L30" class="LineNr"> 30 </span>      <span class="PreProc">var</span> expected-code-point/eax: code-point <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L56'>to-code-point</a> expected-grapheme
  95 <span id="L31" class="LineNr"> 31 </span>      <span class="muComment"># compare graphemes</span>
  96 <span id="L32" class="LineNr"> 32 </span>      $check-screen-row-from:compare-graphemes: <span class="Delimiter">{</span>
  97 <span id="L33" class="LineNr"> 33 </span>        <span class="muComment"># if expected-code-point is space, null grapheme is also ok</span>
  98 <span id="L34" class="LineNr"> 34 </span>        <span class="Delimiter">{</span>
  99 <span id="L35" class="LineNr"> 35 </span>          compare expected-code-point, <span class="Constant">0x20</span>
 100 <span id="L36" class="LineNr"> 36 </span>          <span class="PreProc">break-if-!=</span>
 101 <span id="L37" class="LineNr"> 37 </span>          compare c, <span class="Constant">0</span>
 102 <span id="L38" class="LineNr"> 38 </span>          <span class="PreProc">break-if-=</span> $check-screen-row-from:compare-graphemes
 103 <span id="L39" class="LineNr"> 39 </span>        <span class="Delimiter">}</span>
 104 <span id="L40" class="LineNr"> 40 </span>        <span class="muComment"># if (c == expected-code-point) print &quot;.&quot;</span>
 105 <span id="L41" class="LineNr"> 41 </span>        compare c, expected-code-point
 106 <span id="L42" class="LineNr"> 42 </span>        <span class="PreProc">break-if-=</span>
 107 <span id="L43" class="LineNr"> 43 </span>        <span class="muComment"># otherwise print an error</span>
 108 <span id="L44" class="LineNr"> 44 </span>        failure-count <span class="Special">&lt;-</span> increment
 109 <span id="L45" class="LineNr"> 45 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 110 <span id="L46" class="LineNr"> 46 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 111 <span id="L47" class="LineNr"> 47 </span>        <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, expected-code-point, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 112 <span id="L48" class="LineNr"> 48 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 113 <span id="L49" class="LineNr"> 49 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 114 <span id="L50" class="LineNr"> 50 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 115 <span id="L51" class="LineNr"> 51 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 116 <span id="L52" class="LineNr"> 52 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 117 <span id="L53" class="LineNr"> 53 </span>        <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, c, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 118 <span id="L54" class="LineNr"> 54 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;'&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 119 <span id="L55" class="LineNr"> 55 </span>        <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 120 <span id="L56" class="LineNr"> 56 </span>      <span class="Delimiter">}</span>
 121 <span id="L57" class="LineNr"> 57 </span>    <span class="Delimiter">}</span>
 122 <span id="L58" class="LineNr"> 58 </span>    index <span class="Special">&lt;-</span> increment
 123 <span id="L59" class="LineNr"> 59 </span>    increment x
 124 <span id="L60" class="LineNr"> 60 </span>    <span class="PreProc">loop</span>
 125 <span id="L61" class="LineNr"> 61 </span>  <span class="Delimiter">}</span>
 126 <span id="L62" class="LineNr"> 62 </span>  <span class="muComment"># if any assertions failed, count the test as failed</span>
 127 <span id="L63" class="LineNr"> 63 </span>  compare failure-count, <span class="Constant">0</span>
 128 <span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">{</span>
 129 <span id="L65" class="LineNr"> 65 </span>    <span class="PreProc">break-if-=</span>
 130 <span id="L66" class="LineNr"> 66 </span>    <a href='104test.subx.html#L5'>count-test-failure</a>
 131 <span id="L67" class="LineNr"> 67 </span>    <span class="PreProc">return</span>
 132 <span id="L68" class="LineNr"> 68 </span>  <span class="Delimiter">}</span>
 133 <span id="L69" class="LineNr"> 69 </span>  <span class="muComment"># otherwise print a &quot;.&quot;</span>
 134 <span id="L70" class="LineNr"> 70 </span>  <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 135 <span id="L71" class="LineNr"> 71 </span><span class="Delimiter">}</span>
 136 <span id="L72" class="LineNr"> 72 </span>
 137 <span id="L73" class="LineNr"> 73 </span><span class="muComment"># various variants by screen-cell attribute; spaces in the 'expected' data should not match the attribute</span>
 138 <span id="L74" class="LineNr"> 74 </span>
 139 <span id="L75" class="LineNr"> 75 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L75'>check-screen-row-in-color</a></span> <a href='500fake-screen.mu.html#L16'>screen</a>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), fg: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 140 <span id="L76" class="LineNr"> 76 </span>  <a href='504test-screen.mu.html#L79'>check-screen-row-in-color-from</a> <a href='500fake-screen.mu.html#L16'>screen</a>, fg, y, <span class="Constant">0</span>/x, expected, msg
 141 <span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span>
 142 <span id="L78" class="LineNr"> 78 </span>
 143 <span id="L79" class="LineNr"> 79 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L79'>check-screen-row-in-color-from</a></span> _screen: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), fg: int, y: int, x: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 144 <span id="L80" class="LineNr"> 80 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> copy _screen
 145 <span id="L81" class="LineNr"> 81 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L244'>screen-cell-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, x, y
 146 <span id="L82" class="LineNr"> 82 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'index', grapheme by grapheme</span>
 147 <span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
 148 <span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> e-addr/<span class="muRegEdx">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address e
 149 <span id="L85" class="LineNr"> 85 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected
 150 <span id="L86" class="LineNr"> 86 </span>  <span class="Delimiter">{</span>
 151 <span id="L87" class="LineNr"> 87 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
 152 <span id="L88" class="LineNr"> 88 </span>    compare done?, <span class="Constant">0</span>
 153 <span id="L89" class="LineNr"> 89 </span>    <span class="PreProc">break-if-!=</span>
 154 <span id="L90" class="LineNr"> 90 </span>    <span class="Delimiter">{</span>
 155 <span id="L91" class="LineNr"> 91 </span>      <span class="PreProc">var</span> unused?/eax: boolean <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L513'>screen-cell-unused-at-index?</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 156 <span id="L92" class="LineNr"> 92 </span>      compare unused?, <span class="Constant">0</span>/false
 157 <span id="L93" class="LineNr"> 93 </span>      <span class="PreProc">break-if-!=</span>
 158 <span id="L94" class="LineNr"> 94 </span>      <span class="PreProc">var</span> _c/eax: code-point <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L531'>screen-code-point-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 159 <span id="L95" class="LineNr"> 95 </span>      <span class="PreProc">var</span> c/<span class="muRegEbx">ebx</span>: code-point <span class="Special">&lt;-</span> copy _c
 160 <span id="L96" class="LineNr"> 96 </span>      <span class="PreProc">var</span> expected-grapheme/eax: grapheme <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L236'>read-grapheme</a> e-addr
 161 <span id="L97" class="LineNr"> 97 </span>      <span class="PreProc">var</span> _expected-code-point/eax: code-point <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L56'>to-code-point</a> expected-grapheme
 162 <span id="L98" class="LineNr"> 98 </span>      <span class="PreProc">var</span> expected-code-point/<span class="muRegEdi">edi</span>: code-point <span class="Special">&lt;-</span> copy _expected-code-point
 163 <span id="L99" class="LineNr"> 99 </span>      $check-screen-row-in-color-from:compare-cells: <span class="Delimiter">{</span>
 164 <span id="L100" class="LineNr">100 </span>        <span class="muComment"># if expected-code-point is space, null grapheme is also ok</span>
 165 <span id="L101" class="LineNr">101 </span>        <span class="Delimiter">{</span>
 166 <span id="L102" class="LineNr">102 </span>          compare expected-code-point, <span class="Constant">0x20</span>
 167 <span id="L103" class="LineNr">103 </span>          <span class="PreProc">break-if-!=</span>
 168 <span id="L104" class="LineNr">104 </span>          compare c, <span class="Constant">0</span>
 169 <span id="L105" class="LineNr">105 </span>          <span class="PreProc">break-if-=</span> $check-screen-row-in-color-from:compare-cells
 170 <span id="L106" class="LineNr">106 </span>        <span class="Delimiter">}</span>
 171 <span id="L107" class="LineNr">107 </span>        <span class="muComment"># if expected-code-point is space, a different color is ok</span>
 172 <span id="L108" class="LineNr">108 </span>        <span class="Delimiter">{</span>
 173 <span id="L109" class="LineNr">109 </span>          compare expected-code-point, <span class="Constant">0x20</span>
 174 <span id="L110" class="LineNr">110 </span>          <span class="PreProc">break-if-!=</span>
 175 <span id="L111" class="LineNr">111 </span>          <span class="PreProc">var</span> color/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L549'>screen-color-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 176 <span id="L112" class="LineNr">112 </span>          compare color, fg
 177 <span id="L113" class="LineNr">113 </span>          <span class="PreProc">break-if-!=</span> $check-screen-row-in-color-from:compare-cells
 178 <span id="L114" class="LineNr">114 </span>        <span class="Delimiter">}</span>
 179 <span id="L115" class="LineNr">115 </span>        <span class="muComment"># compare graphemes</span>
 180 <span id="L116" class="LineNr">116 </span>        $check-screen-row-in-color-from:compare-graphemes: <span class="Delimiter">{</span>
 181 <span id="L117" class="LineNr">117 </span>          <span class="muComment"># if (c == expected-code-point) print &quot;.&quot;</span>
 182 <span id="L118" class="LineNr">118 </span>          compare c, expected-code-point
 183 <span id="L119" class="LineNr">119 </span>          <span class="Delimiter">{</span>
 184 <span id="L120" class="LineNr">120 </span>            <span class="PreProc">break-if-!=</span>
 185 <span id="L121" class="LineNr">121 </span>            <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 186 <span id="L122" class="LineNr">122 </span>            <span class="PreProc">break</span> $check-screen-row-in-color-from:compare-graphemes
 187 <span id="L123" class="LineNr">123 </span>          <span class="Delimiter">}</span>
 188 <span id="L124" class="LineNr">124 </span>          <span class="muComment"># otherwise print an error</span>
 189 <span id="L125" class="LineNr">125 </span>          <a href='104test.subx.html#L5'>count-test-failure</a>
 190 <span id="L126" class="LineNr">126 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 191 <span id="L127" class="LineNr">127 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 192 <span id="L128" class="LineNr">128 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, expected-code-point, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 193 <span id="L129" class="LineNr">129 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 194 <span id="L130" class="LineNr">130 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 195 <span id="L131" class="LineNr">131 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 196 <span id="L132" class="LineNr">132 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 197 <span id="L133" class="LineNr">133 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 198 <span id="L134" class="LineNr">134 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, c, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 199 <span id="L135" class="LineNr">135 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;'&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 200 <span id="L136" class="LineNr">136 </span>          <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 201 <span id="L137" class="LineNr">137 </span>        <span class="Delimiter">}</span>
 202 <span id="L138" class="LineNr">138 </span>        $check-screen-row-in-color-from:compare-colors: <span class="Delimiter">{</span>
 203 <span id="L139" class="LineNr">139 </span>          <span class="PreProc">var</span> color/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L549'>screen-color-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 204 <span id="L140" class="LineNr">140 </span>          compare fg, color
 205 <span id="L141" class="LineNr">141 </span>          <span class="Delimiter">{</span>
 206 <span id="L142" class="LineNr">142 </span>            <span class="PreProc">break-if-!=</span>
 207 <span id="L143" class="LineNr">143 </span>            <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 208 <span id="L144" class="LineNr">144 </span>            <span class="PreProc">break</span> $check-screen-row-in-color-from:compare-colors
 209 <span id="L145" class="LineNr">145 </span>          <span class="Delimiter">}</span>
 210 <span id="L146" class="LineNr">146 </span>          <span class="muComment"># otherwise print an error</span>
 211 <span id="L147" class="LineNr">147 </span>          <a href='104test.subx.html#L5'>count-test-failure</a>
 212 <span id="L148" class="LineNr">148 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 213 <span id="L149" class="LineNr">149 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 214 <span id="L150" class="LineNr">150 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, expected-code-point, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 215 <span id="L151" class="LineNr">151 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 216 <span id="L152" class="LineNr">152 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 217 <span id="L153" class="LineNr">153 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 218 <span id="L154" class="LineNr">154 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 219 <span id="L155" class="LineNr">155 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 220 <span id="L156" class="LineNr">156 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, fg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 221 <span id="L157" class="LineNr">157 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 222 <span id="L158" class="LineNr">158 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 223 <span id="L159" class="LineNr">159 </span>          <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 224 <span id="L160" class="LineNr">160 </span>        <span class="Delimiter">}</span>
 225 <span id="L161" class="LineNr">161 </span>      <span class="Delimiter">}</span>
 226 <span id="L162" class="LineNr">162 </span>    <span class="Delimiter">}</span>
 227 <span id="L163" class="LineNr">163 </span>    index <span class="Special">&lt;-</span> increment
 228 <span id="L164" class="LineNr">164 </span>    increment x
 229 <span id="L165" class="LineNr">165 </span>    <span class="PreProc">loop</span>
 230 <span id="L166" class="LineNr">166 </span>  <span class="Delimiter">}</span>
 231 <span id="L167" class="LineNr">167 </span><span class="Delimiter">}</span>
 232 <span id="L168" class="LineNr">168 </span>
 233 <span id="L169" class="LineNr">169 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L169'>check-screen-row-in-background-color</a></span> <a href='500fake-screen.mu.html#L16'>screen</a>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), bg: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 234 <span id="L170" class="LineNr">170 </span>  <a href='504test-screen.mu.html#L173'>check-screen-row-in-background-color-from</a> <a href='500fake-screen.mu.html#L16'>screen</a>, bg, y, <span class="Constant">0</span>/x, expected, msg
 235 <span id="L171" class="LineNr">171 </span><span class="Delimiter">}</span>
 236 <span id="L172" class="LineNr">172 </span>
 237 <span id="L173" class="LineNr">173 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L173'>check-screen-row-in-background-color-from</a></span> _screen: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), bg: int, y: int, x: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 238 <span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> copy _screen
 239 <span id="L175" class="LineNr">175 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L244'>screen-cell-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, x, y
 240 <span id="L176" class="LineNr">176 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'index', grapheme by grapheme</span>
 241 <span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
 242 <span id="L178" class="LineNr">178 </span>  <span class="PreProc">var</span> e-addr/<span class="muRegEdx">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address e
 243 <span id="L179" class="LineNr">179 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected
 244 <span id="L180" class="LineNr">180 </span>  <span class="Delimiter">{</span>
 245 <span id="L181" class="LineNr">181 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
 246 <span id="L182" class="LineNr">182 </span>    compare done?, <span class="Constant">0</span>
 247 <span id="L183" class="LineNr">183 </span>    <span class="PreProc">break-if-!=</span>
 248 <span id="L184" class="LineNr">184 </span>    <span class="Delimiter">{</span>
 249 <span id="L185" class="LineNr">185 </span>      <span class="PreProc">var</span> unused?/eax: boolean <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L513'>screen-cell-unused-at-index?</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 250 <span id="L186" class="LineNr">186 </span>      compare unused?, <span class="Constant">0</span>/false
 251 <span id="L187" class="LineNr">187 </span>      <span class="PreProc">break-if-!=</span>
 252 <span id="L188" class="LineNr">188 </span>      <span class="PreProc">var</span> _g/eax: code-point <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L531'>screen-code-point-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 253 <span id="L189" class="LineNr">189 </span>      <span class="PreProc">var</span> g/<span class="muRegEbx">ebx</span>: code-point <span class="Special">&lt;-</span> copy _g
 254 <span id="L190" class="LineNr">190 </span>      <span class="PreProc">var</span> expected-grapheme/eax: grapheme <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L236'>read-grapheme</a> e-addr
 255 <span id="L191" class="LineNr">191 </span>      <span class="PreProc">var</span> _expected-code-point/eax: code-point <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L56'>to-code-point</a> expected-grapheme
 256 <span id="L192" class="LineNr">192 </span>      <span class="PreProc">var</span> expected-code-point/<span class="muRegEdi">edi</span>: code-point <span class="Special">&lt;-</span> copy _expected-code-point
 257 <span id="L193" class="LineNr">193 </span>      $check-screen-row-in-background-color-from:compare-cells: <span class="Delimiter">{</span>
 258 <span id="L194" class="LineNr">194 </span>        <span class="muComment"># if expected-code-point is space, null grapheme is also ok</span>
 259 <span id="L195" class="LineNr">195 </span>        <span class="Delimiter">{</span>
 260 <span id="L196" class="LineNr">196 </span>          compare expected-code-point, <span class="Constant">0x20</span>
 261 <span id="L197" class="LineNr">197 </span>          <span class="PreProc">break-if-!=</span>
 262 <span id="L198" class="LineNr">198 </span>          compare g, <span class="Constant">0</span>
 263 <span id="L199" class="LineNr">199 </span>          <span class="PreProc">break-if-=</span> $check-screen-row-in-background-color-from:compare-cells
 264 <span id="L200" class="LineNr">200 </span>        <span class="Delimiter">}</span>
 265 <span id="L201" class="LineNr">201 </span>        <span class="muComment"># if expected-code-point is space, a different background-color is ok</span>
 266 <span id="L202" class="LineNr">202 </span>        <span class="Delimiter">{</span>
 267 <span id="L203" class="LineNr">203 </span>          compare expected-code-point, <span class="Constant">0x20</span>
 268 <span id="L204" class="LineNr">204 </span>          <span class="PreProc">break-if-!=</span>
 269 <span id="L205" class="LineNr">205 </span>          <span class="PreProc">var</span> background-color/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L568'>screen-background-color-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 270 <span id="L206" class="LineNr">206 </span>          compare background-color, bg
 271 <span id="L207" class="LineNr">207 </span>          <span class="PreProc">break-if-!=</span> $check-screen-row-in-background-color-from:compare-cells
 272 <span id="L208" class="LineNr">208 </span>        <span class="Delimiter">}</span>
 273 <span id="L209" class="LineNr">209 </span>        <span class="muComment"># compare graphemes</span>
 274 <span id="L210" class="LineNr">210 </span>        $check-screen-row-in-background-color-from:compare-graphemes: <span class="Delimiter">{</span>
 275 <span id="L211" class="LineNr">211 </span>          <span class="muComment"># if (g == expected-code-point) print &quot;.&quot;</span>
 276 <span id="L212" class="LineNr">212 </span>          compare g, expected-code-point
 277 <span id="L213" class="LineNr">213 </span>          <span class="Delimiter">{</span>
 278 <span id="L214" class="LineNr">214 </span>            <span class="PreProc">break-if-!=</span>
 279 <span id="L215" class="LineNr">215 </span>            <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 280 <span id="L216" class="LineNr">216 </span>            <span class="PreProc">break</span> $check-screen-row-in-background-color-from:compare-graphemes
 281 <span id="L217" class="LineNr">217 </span>          <span class="Delimiter">}</span>
 282 <span id="L218" class="LineNr">218 </span>          <span class="muComment"># otherwise print an error</span>
 283 <span id="L219" class="LineNr">219 </span>          <a href='104test.subx.html#L5'>count-test-failure</a>
 284 <span id="L220" class="LineNr">220 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 285 <span id="L221" class="LineNr">221 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 286 <span id="L222" class="LineNr">222 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, expected-code-point, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 287 <span id="L223" class="LineNr">223 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 288 <span id="L224" class="LineNr">224 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 289 <span id="L225" class="LineNr">225 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 290 <span id="L226" class="LineNr">226 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 291 <span id="L227" class="LineNr">227 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 292 <span id="L228" class="LineNr">228 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, g, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 293 <span id="L229" class="LineNr">229 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;'&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 294 <span id="L230" class="LineNr">230 </span>          <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 295 <span id="L231" class="LineNr">231 </span>          <span class="PreProc">break</span> $check-screen-row-in-background-color-from:compare-graphemes
 296 <span id="L232" class="LineNr">232 </span>        <span class="Delimiter">}</span>
 297 <span id="L233" class="LineNr">233 </span>        $check-screen-row-in-background-color-from:compare-background-colors: <span class="Delimiter">{</span>
 298 <span id="L234" class="LineNr">234 </span>          <span class="PreProc">var</span> background-color/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L568'>screen-background-color-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 299 <span id="L235" class="LineNr">235 </span>          compare bg, background-color
 300 <span id="L236" class="LineNr">236 </span>          <span class="Delimiter">{</span>
 301 <span id="L237" class="LineNr">237 </span>            <span class="PreProc">break-if-!=</span>
 302 <span id="L238" class="LineNr">238 </span>            <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 303 <span id="L239" class="LineNr">239 </span>            <span class="PreProc">break</span> $check-screen-row-in-background-color-from:compare-background-colors
 304 <span id="L240" class="LineNr">240 </span>          <span class="Delimiter">}</span>
 305 <span id="L241" class="LineNr">241 </span>          <span class="muComment"># otherwise print an error</span>
 306 <span id="L242" class="LineNr">242 </span>          <a href='104test.subx.html#L5'>count-test-failure</a>
 307 <span id="L243" class="LineNr">243 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 308 <span id="L244" class="LineNr">244 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 309 <span id="L245" class="LineNr">245 </span>          <a href='501draw-text.mu.html#L91'>draw-code-point-at-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, expected-code-point, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
 310 <span id="L246" class="LineNr">246 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 311 <span id="L247" class="LineNr">247 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 312 <span id="L248" class="LineNr">248 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 313 <span id="L249" class="LineNr">249 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 314 <span id="L250" class="LineNr">250 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 315 <span id="L251" class="LineNr">251 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 316 <span id="L252" class="LineNr">252 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 317 <span id="L253" class="LineNr">253 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, background-color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 318 <span id="L254" class="LineNr">254 </span>          <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 319 <span id="L255" class="LineNr">255 </span>        <span class="Delimiter">}</span>
 320 <span id="L256" class="LineNr">256 </span>      <span class="Delimiter">}</span>
 321 <span id="L257" class="LineNr">257 </span>    <span class="Delimiter">}</span>
 322 <span id="L258" class="LineNr">258 </span>    index <span class="Special">&lt;-</span> increment
 323 <span id="L259" class="LineNr">259 </span>    increment x
 324 <span id="L260" class="LineNr">260 </span>    <span class="PreProc">loop</span>
 325 <span id="L261" class="LineNr">261 </span>  <span class="Delimiter">}</span>
 326 <span id="L262" class="LineNr">262 </span><span class="Delimiter">}</span>
 327 <span id="L263" class="LineNr">263 </span>
 328 <span id="L264" class="LineNr">264 </span><span class="muComment"># helpers for checking just background color, not screen contents</span>
 329 <span id="L265" class="LineNr">265 </span><span class="muComment"># these can validate bg for spaces</span>
 330 <span id="L266" class="LineNr">266 </span>
 331 <span id="L267" class="LineNr">267 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L267'>check-background-color-in-screen-row</a></span> <a href='500fake-screen.mu.html#L16'>screen</a>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), bg: int, y: int, expected-bitmap: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 332 <span id="L268" class="LineNr">268 </span>  <a href='504test-screen.mu.html#L271'>check-background-color-in-screen-row-from</a> <a href='500fake-screen.mu.html#L16'>screen</a>, bg, y, <span class="Constant">0</span>/x, expected-bitmap, msg
 333 <span id="L269" class="LineNr">269 </span><span class="Delimiter">}</span>
 334 <span id="L270" class="LineNr">270 </span>
 335 <span id="L271" class="LineNr">271 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L271'>check-background-color-in-screen-row-from</a></span> _screen: (addr <a href='500fake-screen.mu.html#L16'>screen</a>), bg: int, y: int, x: int, expected-bitmap: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 336 <span id="L272" class="LineNr">272 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> copy _screen
 337 <span id="L273" class="LineNr">273 </span>  <span class="PreProc">var</span> failure-count: int
 338 <span id="L274" class="LineNr">274 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L244'>screen-cell-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, x, y
 339 <span id="L275" class="LineNr">275 </span>  <span class="muComment"># compare background color where 'expected-bitmap' is a non-space</span>
 340 <span id="L276" class="LineNr">276 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
 341 <span id="L277" class="LineNr">277 </span>  <span class="PreProc">var</span> e-addr/<span class="muRegEdx">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address e
 342 <span id="L278" class="LineNr">278 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected-bitmap
 343 <span id="L279" class="LineNr">279 </span>  <span class="Delimiter">{</span>
 344 <span id="L280" class="LineNr">280 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
 345 <span id="L281" class="LineNr">281 </span>    compare done?, <span class="Constant">0</span>
 346 <span id="L282" class="LineNr">282 </span>    <span class="PreProc">break-if-!=</span>
 347 <span id="L283" class="LineNr">283 </span>    <span class="Delimiter">{</span>
 348 <span id="L284" class="LineNr">284 </span>      <span class="PreProc">var</span> unused?/eax: boolean <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L513'>screen-cell-unused-at-index?</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 349 <span id="L285" class="LineNr">285 </span>      compare unused?, <span class="Constant">0</span>/false
 350 <span id="L286" class="LineNr">286 </span>      <span class="PreProc">break-if-!=</span>
 351 <span id="L287" class="LineNr">287 </span>      <span class="PreProc">var</span> _expected-bit/eax: grapheme <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L236'>read-grapheme</a> e-addr
 352 <span id="L288" class="LineNr">288 </span>      <span class="PreProc">var</span> expected-bit/<span class="muRegEdi">edi</span>: grapheme <span class="Special">&lt;-</span> copy _expected-bit
 353 <span id="L289" class="LineNr">289 </span>      $check-background-color-in-screen-row-from:compare-cells: <span class="Delimiter">{</span>
 354 <span id="L290" class="LineNr">290 </span>        <span class="PreProc">var</span> background-color/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L568'>screen-background-color-at-index</a> <a href='500fake-screen.mu.html#L16'>screen</a>, index
 355 <span id="L291" class="LineNr">291 </span>        <span class="muComment"># if expected-bit is space, assert that background is NOT bg</span>
 356 <span id="L292" class="LineNr">292 </span>        compare expected-bit, <span class="Constant">0x20</span>
 357 <span id="L293" class="LineNr">293 </span>        <span class="Delimiter">{</span>
 358 <span id="L294" class="LineNr">294 </span>          <span class="PreProc">break-if-!=</span>
 359 <span id="L295" class="LineNr">295 </span>          compare background-color, bg
 360 <span id="L296" class="LineNr">296 </span>          <span class="PreProc">break-if-!=</span> $check-background-color-in-screen-row-from:compare-cells
 361 <span id="L297" class="LineNr">297 </span>          increment failure-count
 362 <span id="L298" class="LineNr">298 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 363 <span id="L299" class="LineNr">299 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 364 <span id="L300" class="LineNr">300 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 365 <span id="L301" class="LineNr">301 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 366 <span id="L302" class="LineNr">302 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 367 <span id="L303" class="LineNr">303 </span>          <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) to not be in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 368 <span id="L304" class="LineNr">304 </span>          <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 369 <span id="L305" class="LineNr">305 </span>          <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 370 <span id="L306" class="LineNr">306 </span>          <span class="PreProc">break</span> $check-background-color-in-screen-row-from:compare-cells
 371 <span id="L307" class="LineNr">307 </span>        <span class="Delimiter">}</span>
 372 <span id="L308" class="LineNr">308 </span>        <span class="muComment"># otherwise assert that background IS bg</span>
 373 <span id="L309" class="LineNr">309 </span>        compare background-color, bg
 374 <span id="L310" class="LineNr">310 </span>        <span class="PreProc">break-if-=</span> $check-background-color-in-screen-row-from:compare-cells
 375 <span id="L311" class="LineNr">311 </span>        increment failure-count
 376 <span id="L312" class="LineNr">312 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 377 <span id="L313" class="LineNr">313 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 378 <span id="L314" class="LineNr">314 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 379 <span id="L315" class="LineNr">315 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 380 <span id="L316" class="LineNr">316 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 381 <span id="L317" class="LineNr">317 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 382 <span id="L318" class="LineNr">318 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 383 <span id="L319" class="LineNr">319 </span>        <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 384 <span id="L320" class="LineNr">320 </span>        <a href='501draw-text.mu.html#L394'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, background-color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 385 <span id="L321" class="LineNr">321 </span>        <a href='501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 386 <span id="L322" class="LineNr">322 </span>      <span class="Delimiter">}</span>
 387 <span id="L323" class="LineNr">323 </span>    <span class="Delimiter">}</span>
 388 <span id="L324" class="LineNr">324 </span>    index <span class="Special">&lt;-</span> increment
 389 <span id="L325" class="LineNr">325 </span>    increment x
 390 <span id="L326" class="LineNr">326 </span>    <span class="PreProc">loop</span>
 391 <span id="L327" class="LineNr">327 </span>  <span class="Delimiter">}</span>
 392 <span id="L328" class="LineNr">328 </span>  <span class="muComment"># if any assertions failed, count the test as failed</span>
 393 <span id="L329" class="LineNr">329 </span>  compare failure-count, <span class="Constant">0</span>
 394 <span id="L330" class="LineNr">330 </span>  <span class="Delimiter">{</span>
 395 <span id="L331" class="LineNr">331 </span>    <span class="PreProc">break-if-=</span>
 396 <span id="L332" class="LineNr">332 </span>    <a href='104test.subx.html#L5'>count-test-failure</a>
 397 <span id="L333" class="LineNr">333 </span>    <span class="PreProc">return</span>
 398 <span id="L334" class="LineNr">334 </span>  <span class="Delimiter">}</span>
 399 <span id="L335" class="LineNr">335 </span>  <span class="muComment"># otherwise print a &quot;.&quot;</span>
 400 <span id="L336" class="LineNr">336 </span>  <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 401 <span id="L337" class="LineNr">337 </span><span class="Delimiter">}</span>
 402 <span id="L338" class="LineNr">338 </span>
 403 <span id="L339" class="LineNr">339 </span><span class="PreProc">fn</span> <span class="muTest"><a href='504test-screen.mu.html#L339'>test-draw-single-grapheme</a></span> <span class="Delimiter">{</span>
 404 <span id="L340" class="LineNr">340 </span>  <span class="PreProc">var</span> _screen: <a href='500fake-screen.mu.html#L16'>screen</a>
 405 <span id="L341" class="LineNr">341 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> address _screen
 406 <span id="L342" class="LineNr">342 </span>  <a href='500fake-screen.mu.html#L34'>initialize-screen</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>, <span class="Constant">0</span>/no-pixel-graphics
 407 <span id="L343" class="LineNr">343 </span>  <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L94'>draw-code-point</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">0x61</span>/a, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">1</span>/fg, <span class="Constant">2</span>/bg
 408 <span id="L344" class="LineNr">344 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme&quot;</span>  <span class="muComment"># top-left corner of the screen</span>
 409 <span id="L345" class="LineNr">345 </span>  <a href='504test-screen.mu.html#L75'>check-screen-row-in-color</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">1</span>/fg, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-fg&quot;</span>
 410 <span id="L346" class="LineNr">346 </span>  <a href='504test-screen.mu.html#L169'>check-screen-row-in-background-color</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-bg&quot;</span>
 411 <span id="L347" class="LineNr">347 </span>  <a href='504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;x &quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-bg2&quot;</span>
 412 <span id="L348" class="LineNr">348 </span><span class="Delimiter">}</span>
 413 <span id="L349" class="LineNr">349 </span>
 414 <span id="L350" class="LineNr">350 </span><span class="PreProc">fn</span> <span class="muTest"><a href='504test-screen.mu.html#L350'>test-draw-multiple-graphemes</a></span> <span class="Delimiter">{</span>
 415 <span id="L351" class="LineNr">351 </span>  <span class="PreProc">var</span> _screen: <a href='500fake-screen.mu.html#L16'>screen</a>
 416 <span id="L352" class="LineNr">352 </span>  <span class="PreProc">var</span> <a href='500fake-screen.mu.html#L16'>screen</a>/<span class="muRegEsi">esi</span>: (addr <a href='500fake-screen.mu.html#L16'>screen</a>) <span class="Special">&lt;-</span> address _screen
 417 <span id="L353" class="LineNr">353 </span>  <a href='500fake-screen.mu.html#L34'>initialize-screen</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">0x10</span>/rows, <span class="Constant">4</span>/cols, <span class="Constant">0</span>/no-pixel-graphics
 418 <span id="L354" class="LineNr">354 </span>  <a href='501draw-text.mu.html#L339'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">1</span>/fg, <span class="Constant">2</span>/bg
 419 <span id="L355" class="LineNr">355 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes&quot;</span>
 420 <span id="L356" class="LineNr">356 </span>  <a href='504test-screen.mu.html#L75'>check-screen-row-in-color</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">1</span>/fg, <span class="Constant">0</span>/y, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes-fg&quot;</span>
 421 <span id="L357" class="LineNr">357 </span>  <a href='504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='500fake-screen.mu.html#L16'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;xxxxxxxxx &quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes-bg2&quot;</span>
 422 <span id="L358" class="LineNr">358 </span><span class="Delimiter">}</span>
 423 </pre>
 424 </body>
 425 </html>
 426 <!-- vim: set foldmethod=manual : -->