| <!DOCTYPE html> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script src="resources/comparisons.js"></script> |
| |
| <script> |
| let EPSILON = 1e-6; |
| |
| test(() => { |
| let perspective = new CSSPerspective(new CSSUnitValue(10, 'px')); |
| |
| assert_equals(perspective.toString(), 'perspective(10px)'); |
| }, "toString should return perspective(<CSSNumericValue.cssString()>)"); |
| |
| test(() => { |
| let transformValue = new CSSTransformValue([new CSSPerspective(CSS.em(10))]); |
| assert_throws(new TypeError(), () => { |
| transformValue.toMatrix(); |
| }); |
| }, "toMatrix throws TypeError if relative units are used"); |
| |
| test(() => { |
| let expectedMatrix = new DOMMatrixReadOnly(); |
| let transformValue = new CSSTransformValue([new CSSPerspective(CSS.px(-10))]); |
| assert_matrix_approx_equals(transformValue.toMatrix(), expectedMatrix, EPSILON); |
| }, "toMatrix is the identity when perspective is negative (which is invalid)"); |
| |
| </script> |
| |
