third_party/WebKit/LayoutTests/fast/forms/number/number-stepup-stepdown.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <script src="../../../resources/js-test.js"></script>
   5 </head>
   6 <body>
   7 <script>
   8 description('Check stepUp() and stepDown() behavior for number type.');
   9
  10 var input = document.createElement('input');
  11 var changeEventCounter = 0;
  12 input.onchange = function() { ++changeEventCounter; };
  13
  14 function setInputAttributes(min, max, step, value) {
  15     input.min = min;
  16     input.max = max;
  17     input.step = step;
  18     input.value = value;
  19 }
  20
  21 function stepUp(value, step, max, optionalStepCount) {
  22     setInputAttributes(null, max, step, value);
  23     if (typeof optionalStepCount != "undefined")
  24         input.stepUp(optionalStepCount);
  25     else
  26         input.stepUp();
  27     return input.value;
  28 }
  29
  30 function stepDown(value, step, min, optionalStepCount) {
  31     setInputAttributes(min, null, step, value);
  32     if (typeof optionalStepCount != "undefined")
  33         input.stepDown(optionalStepCount);
  34     else
  35         input.stepDown();
  36     return input.value;
  37 }
  38
  39 function stepUpExplicitBounds(min, max, step, value, stepCount) {
  40     setInputAttributes(min, max, step, value);
  41     if (typeof stepCount !== 'undefined')
  42         input.stepUp(stepCount);
  43     else
  44         input.stepUp();
  45     return input.value;
  46 }
  47
  48 function stepDownExplicitBounds(min, max, step, value, stepCount) {
  49     setInputAttributes(min, max, step, value);
  50     if (typeof stepCount !== 'undefined')
  51         input.stepDown(stepCount);
  52     else
  53         input.stepDown();
  54     return input.value;
  55 }
  56
  57 debug('Number type');
  58 input.type = 'number';
  59 debug('Invalid value');
  60 shouldBeEqualToString('stepUp("", null, null)', '1');
  61 shouldBeEqualToString('stepDown("", null, null)', '-1');
  62 debug('Non-number arguments');
  63 shouldBe('stepUp("0", null, null, "0")', '"0"');
  64 shouldBe('stepDown("0", null, null, "0")', '"0"');
  65 shouldBe('stepUp("0", null, null, "foo")', '"0"');
  66 shouldBe('stepDown("0", null, null, "foo")', '"0"');
  67 shouldBe('stepUp("0", null, null, null)', '"0"');
  68 shouldBe('stepDown("0", null, null, null)', '"0"');
  69 debug('Normal cases');
  70 shouldBe('stepUp("0", null, null)', '"1"');
  71 shouldBe('stepUp("1", null, null, 2)', '"3"');
  72 shouldBe('stepUp("3", null, null, -1)', '"2"');
  73 shouldBe('stepDown("2", null, null)', '"1"');
  74 shouldBe('stepDown("1", null, null, 2)', '"-1"');
  75 shouldBe('stepDown("-1", null, null, -1)', '"0"');
  76 debug('Extra arguments');
  77 shouldBe('input.value = "0"; input.min = null; input.step = null; input.stepUp(1, 2); input.value', '"1"');
  78 shouldBe('input.value = "1"; input.stepDown(1, 3); input.value', '"0"');
  79 debug('Invalid step value');
  80 shouldBe('stepUp("0", "foo", null)', '"1"');
  81 shouldBe('stepUp("1", "0", null)', '"2"');
  82 shouldBe('stepUp("2", "-1", null)', '"3"');
  83 debug('Step=any');
  84 shouldThrow('stepUp("0", "any", null)');
  85 shouldThrow('stepDown("0", "any", null)');
  86 debug('Step=any corner case');
  87 shouldThrow('stepUpExplicitBounds("0", "100", "any", "1.5", "1")');
  88 shouldThrow('stepDownExplicitBounds("0", "100", "any", "1.5", "1")');
  89 debug('Overflow/underflow');
  90 shouldBe('stepDown("1", "1", "0")', '"0"');
  91 shouldBeEqualToString('stepDown("0", "1", "0")', '0');
  92 shouldBeEqualToString('stepDown("1", "1", "0", 2)', '0');
  93 shouldBeEqualToString('stepDown("1", "1.797693134862315e+308", "", 2)', '-1.797693134862315e+308');
  94 shouldBeEqualToString('stepUp("-1", "1", "0")', '0');
  95 shouldBeEqualToString('stepUp("0", "1", "0")', '0');
  96 shouldBeEqualToString('stepUp("-1", "1", "0", 2)', '0');
  97 shouldBeEqualToString('stepUp("1", "1.797693134862315e+308", "", 2)', '1.797693134862315e+308');
  98 debug('stepDown()/stepUp() for stepMismatch values');
  99 shouldBeEqualToString('stepUpExplicitBounds("0", "", "2", "1"); input.value', '2');
 100 shouldBeEqualToString('stepUp("1", "2", "")', '2');
 101 shouldBeEqualToString('input.stepDown(); input.value', '0');
 102 shouldBeEqualToString('input.min = "0"; stepUp("9", "10", "", 9)', '90');
 103 shouldBeEqualToString('stepDown("19", "10", "0")', '10');
 104 shouldBeEqualToString('stepUp("89", "10", "99")', '90');
 105 debug('Huge value and small step');
 106 shouldBe('input.min = ""; stepUp("1e+308", "1", "", 999999)', '"1e+308"');
 107 shouldBe('input.max = ""; stepDown("1e+308", "1", "", 999999)', '"1e+308"');
 108 debug('Fractional numbers');
 109 shouldBe('input.min = ""; stepUp("0", "0.33333333333333333", "", 3)', '"1"');
 110 shouldBe('stepUp("1", "0.1", "", 10)', '"2"');
 111 shouldBe('input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.stepUp(); input.value', '"3"');
 112 shouldBe('input.min = "0"; stepUp("0", "0.003921568627450980", "1", 255)', '"1"');
 113 shouldBe('for (var i = 0; i < 255; i++) { input.stepDown(); }; input.value', '"0"');
 114 debug('Rounding');
 115 shouldBe('stepUp("5.005", "0.005", "", 2)', '"5.015"');
 116 shouldBe('stepUp("5.005", "0.005", "", 11)', '"5.06"');
 117 shouldBe('stepUp("5.005", "0.005", "", 12)', '"5.065"');
 118 shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 2)', '"5.015"');
 119 shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 11)', '"5.06"');
 120 shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 12)', '"5.065"');
 121
 122 debug('');
 123 debug('This test should not dispatch any |change| events.');
 124 shouldBe('changeEventCounter', '0');
 125 </script>
 126 </body>
 127 </html>