| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.fxtf.org/geometry-1/#DOMMatrix"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <p>Test DOMMatrix.inverse()/invertSelf() for non-invertible matrix</p> |
| <script> |
| function checkResult(m) { |
| assert_false(m.is2D, 'is2D'); |
| assert_false(m.isIdentity, 'isIdentity'); |
| assert_true(isNaN(m.m11), 'm11 isNaN'); |
| assert_true(isNaN(m.m12), 'm12 isNaN'); |
| assert_true(isNaN(m.m13), 'm13 isNaN'); |
| assert_true(isNaN(m.m14), 'm14 isNaN'); |
| assert_true(isNaN(m.m21), 'm21 isNaN'); |
| assert_true(isNaN(m.m22), 'm22 isNaN'); |
| assert_true(isNaN(m.m23), 'm23 isNaN'); |
| assert_true(isNaN(m.m24), 'm24 isNaN'); |
| assert_true(isNaN(m.m31), 'm31 isNaN'); |
| assert_true(isNaN(m.m32), 'm32 isNaN'); |
| assert_true(isNaN(m.m33), 'm33 isNaN'); |
| assert_true(isNaN(m.m34), 'm34 isNaN'); |
| assert_true(isNaN(m.m41), 'm41 isNaN'); |
| assert_true(isNaN(m.m42), 'm42 isNaN'); |
| assert_true(isNaN(m.m43), 'm43 isNaN'); |
| assert_true(isNaN(m.m44), 'm44 isNaN'); |
| |
| var f32 = m.toFloat32Array(); |
| assert_equals(f32.length, 16, 'toFloat32Array().length'); |
| for (var i = 0; i < 16; i++) |
| assert_true(isNaN(f32[i]), 'toFloat32Array()[' + i + '] isNaN'); |
| |
| var f64 = m.toFloat64Array(); |
| assert_equals(f64.length, 16, 'toFloat64Array().length'); |
| for (var i = 0; i < 16; i++) |
| assert_true(isNaN(f64[i]), 'toFloat64()[' + i + '] isNaN'); |
| } |
| |
| test(function() { |
| var m = new DOMMatrix(); |
| m.a = 0; |
| m.invertSelf(); |
| checkResult(m); |
| },"invertSelf()"); |
| |
| test(function() { |
| var m = new DOMMatrix(); |
| m.a = 0; |
| checkResult(m.inverse()); |
| },"inverse()"); |
| </script> |
