third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-invalid-values.js

   1 description("Test that setting various CanvasRenderingContext2D properties to invalid values has no effect.");
   2
   3 ctx = document.createElement('canvas').getContext('2d');
   4
   5 function trySettingMiterLimit(value) {
   6     ctx.miterLimit = 1.5;
   7     ctx.miterLimit = value;
   8     return ctx.miterLimit;
   9 }
  10
  11 function trySettingLineWidth(value) {
  12     ctx.lineWidth = 1.5;
  13     ctx.lineWidth = value;
  14     return ctx.lineWidth;
  15 }
  16
  17 function trySettingShadowBlur(value) {
  18     ctx.shadowBlur = 1.5;
  19     ctx.shadowBlur = value;
  20     return ctx.shadowBlur;
  21 }
  22
  23 function trySettingShadowOffsetX(value) {
  24     ctx.shadowOffsetX = 1.5;
  25     ctx.shadowOffsetX = value;
  26     return ctx.shadowOffsetX;
  27 }
  28
  29 function trySettingShadowOffsetY(value) {
  30     ctx.shadowOffsetY = 1.5;
  31     ctx.shadowOffsetY = value;
  32     return ctx.shadowOffsetY;
  33 }
  34
  35 shouldBe("trySettingMiterLimit(1)", "1");
  36 shouldBe("trySettingMiterLimit(0)", "1.5");
  37 shouldBe("trySettingMiterLimit(-1)", "1.5");
  38 shouldBe("trySettingMiterLimit(Infinity)", "1.5");
  39 shouldBe("trySettingMiterLimit(-Infinity)", "1.5");
  40 shouldBe("trySettingMiterLimit(NaN)", "1.5");
  41 shouldBe("trySettingMiterLimit('string')", "1.5");
  42 shouldBe("trySettingMiterLimit(true)", "1");
  43 shouldBe("trySettingMiterLimit(false)", "1.5");
  44
  45 shouldBe("trySettingLineWidth(1)", "1");
  46 shouldBe("trySettingLineWidth(0)", "1.5");
  47 shouldBe("trySettingLineWidth(-1)", "1.5");
  48 shouldBe("trySettingLineWidth(Infinity)", "1.5");
  49 shouldBe("trySettingLineWidth(-Infinity)", "1.5");
  50 shouldBe("trySettingLineWidth(NaN)", "1.5");
  51 shouldBe("trySettingLineWidth('string')", "1.5");
  52 shouldBe("trySettingLineWidth(true)", "1");
  53 shouldBe("trySettingLineWidth(false)", "1.5");
  54
  55 shouldBe("trySettingShadowBlur(1)", "1");
  56 shouldBe("trySettingShadowBlur(0)", "0");
  57 shouldBe("trySettingShadowBlur(-1)", "1.5");
  58 shouldBe("trySettingShadowBlur(Infinity)", "1.5");
  59 shouldBe("trySettingShadowBlur(-Infinity)", "1.5");
  60 shouldBe("trySettingShadowBlur(NaN)", "1.5");
  61 shouldBe("trySettingShadowBlur('string')", "1.5");
  62 shouldBe("trySettingShadowBlur(true)", "1");
  63 shouldBe("trySettingShadowBlur(false)", "0");
  64
  65 shouldBe("trySettingShadowOffsetX(1)", "1");
  66 shouldBe("trySettingShadowOffsetX(0)", "0");
  67 shouldBe("trySettingShadowOffsetX(-1)", "-1");
  68 shouldBe("trySettingShadowOffsetX(Infinity)", "1.5");
  69 shouldBe("trySettingShadowOffsetX(-Infinity)", "1.5");
  70 shouldBe("trySettingShadowOffsetX(NaN)", "1.5");
  71 shouldBe("trySettingShadowOffsetX('string')", "1.5");
  72 shouldBe("trySettingShadowOffsetX(true)", "1");
  73 shouldBe("trySettingShadowOffsetX(false)", "0");
  74
  75 shouldBe("trySettingShadowOffsetY(1)", "1");
  76 shouldBe("trySettingShadowOffsetY(0)", "0");
  77 shouldBe("trySettingShadowOffsetY(-1)", "-1");
  78 shouldBe("trySettingShadowOffsetY(Infinity)", "1.5");
  79 shouldBe("trySettingShadowOffsetY(-Infinity)", "1.5");
  80 shouldBe("trySettingShadowOffsetY(NaN)", "1.5");
  81 shouldBe("trySettingShadowOffsetY('string')", "1.5");
  82 shouldBe("trySettingShadowOffsetY(true)", "1");
  83 shouldBe("trySettingShadowOffsetY(false)", "0");