| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Test rendering of sub-pixel borders</title> |
| <style> |
| .test { |
| box-sizing: content-box; |
| display: inline-block; |
| margin: 5px; |
| width: 80px; |
| height: 80px; |
| border: 1px solid green; |
| background: lightgreen; |
| text-align: center; |
| line-height: 80px; |
| } |
| </style> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <div class="test" style="border-width: 0.25px">0.25px</div> |
| <div class="test" style="border-width: 0.5px">0.5px</div> |
| <div class="test" style="border-width: 0.75px">0.75px</div> |
| <div class="test" style="border-width: 1px">1px</div> |
| <div class="test" style="border-width: 1.25px">1.25px</div> |
| <div class="test" style="border-width: 1.5px">1.5px</div> |
| <p> |
| Border thickness should be rounded, not floored, with the exception of |
| values below 1px where it should always round up. |
| </p> |
| <script> |
| var testElements = {}; |
| var elements = document.getElementsByClassName('test'); |
| for (var element, i = 0; element = elements[i]; i++) { |
| testElements[element.firstChild.nodeValue] = element; |
| } |
| |
| function borderAsString(element) { |
| var style = window.getComputedStyle(element); |
| return style.borderTopWidth + ' ' + style.borderRightWidth + ' ' + |
| style.borderBottomWidth + ' ' + style.borderLeftWidth; |
| } |
| |
| test(function() { |
| var refSize = testElements['0.25px'].getBoundingClientRect(); |
| var testSize = testElements['0.5px'].getBoundingClientRect(); |
| assert_equals(testSize.width, refSize.width, |
| 'Size of 0.5px box should be equal to 0.25px box.'); |
| assert_equals(testSize.height, refSize.height, |
| 'Size of 0.5px box should be equal to 0.25px box.'); |
| |
| refSize = testSize; |
| testSize = testElements['0.75px'].getBoundingClientRect(); |
| assert_equals(testSize.width, refSize.width, |
| 'Size of 0.75px box should be equal to 0.5px box.'); |
| assert_equals(testSize.height, refSize.height, |
| 'Size of 0.75px box should be equal to 0.5px box.'); |
| |
| refSize = testSize; |
| testSize = testElements['1px'].getBoundingClientRect(); |
| assert_equals(testSize.width, refSize.width, |
| 'Size of 1px box should be equal to 0.75px box.'); |
| assert_equals(testSize.height, refSize.height, |
| 'Size of 1px box should be equal to 0.75px box.'); |
| |
| refSize = testSize; |
| testSize = testElements['1.25px'].getBoundingClientRect(); |
| assert_greater_than(testSize.width, refSize.width, |
| 'Size of 1.25px box should be larger than 1px box.'); |
| assert_greater_than(testSize.height, refSize.height, |
| 'Size of 1.25px box should be larger than 1px box.'); |
| |
| refSize = testSize; |
| testSize = testElements['1.5px'].getBoundingClientRect(); |
| assert_greater_than(testSize.width, refSize.width, |
| 'Size of 1.5px box should be larger than 1.25px box.'); |
| assert_greater_than(testSize.height, refSize.height, |
| 'Size of 1.5px box should be larger than 1.25px box.'); |
| }, 'Size of all elements are correct.'); |
| |
| test(function() { |
| assert_equals(borderAsString(testElements['0.25px']), |
| '1px 1px 1px 1px', |
| 'Border thickness of 0.25px box should be 1px.'); |
| assert_equals(borderAsString(testElements['0.5px']), |
| '1px 1px 1px 1px', |
| 'Border thickness of 0.5px box should be 1px.'); |
| assert_equals(borderAsString(testElements['0.75px']), |
| '1px 1px 1px 1px', |
| 'Border thickness of 0.75px box should be 1px.'); |
| assert_equals(borderAsString(testElements['1.25px']), |
| '1.25px 1.25px 1.25px 1.25px', |
| 'Border thickness of 1.25px box should retain decimals.'); |
| assert_equals(borderAsString(testElements['1.5px']), |
| '1.5px 1.5px 1.5px 1.5px', |
| 'Border thickness of 1.5px box should retain decimals.'); |
| }, 'All elements should have correctly sized borders.'); |
| </script> |
| </body> |
| </html> |
