diff options
Diffstat (limited to 'tests/Matrix44Test.cpp')
| -rw-r--r-- | tests/Matrix44Test.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/Matrix44Test.cpp b/tests/Matrix44Test.cpp index cd11a7da2d..9208ed13ad 100644 --- a/tests/Matrix44Test.cpp +++ b/tests/Matrix44Test.cpp @@ -426,6 +426,31 @@ static void test_invert(skiatest::Reporter* reporter) { 0, 0, -1, 1}; expected.setRowMajord(expectedInverseAffineAndPerspective); REPORTER_ASSERT(reporter, nearly_equal(expected, inverse)); + + SkMatrix44 tinyScale(SkMatrix44::kIdentity_Constructor); + tinyScale.setDouble(0, 0, 1e-39); + REPORTER_ASSERT(reporter, tinyScale.getType() == SkMatrix44::kScale_Mask); + REPORTER_ASSERT(reporter, !tinyScale.invert(NULL)); + REPORTER_ASSERT(reporter, !tinyScale.invert(&inverse)); + + SkMatrix44 tinyScaleTranslate(SkMatrix44::kIdentity_Constructor); + tinyScaleTranslate.setDouble(0, 0, 1e-38); + REPORTER_ASSERT(reporter, tinyScaleTranslate.invert(NULL)); + tinyScaleTranslate.setDouble(0, 3, 10); + REPORTER_ASSERT( + reporter, tinyScaleTranslate.getType() == + (SkMatrix44::kScale_Mask | SkMatrix44::kTranslate_Mask)); + REPORTER_ASSERT(reporter, !tinyScaleTranslate.invert(NULL)); + REPORTER_ASSERT(reporter, !tinyScaleTranslate.invert(&inverse)); + + SkMatrix44 tinyScalePerspective(SkMatrix44::kIdentity_Constructor); + tinyScalePerspective.setDouble(0, 0, 1e-39); + tinyScalePerspective.setDouble(3, 2, -1); + REPORTER_ASSERT(reporter, (tinyScalePerspective.getType() & + SkMatrix44::kPerspective_Mask) == + SkMatrix44::kPerspective_Mask); + REPORTER_ASSERT(reporter, !tinyScalePerspective.invert(NULL)); + REPORTER_ASSERT(reporter, !tinyScalePerspective.invert(&inverse)); } static void test_transpose(skiatest::Reporter* reporter) { |