diff options
Diffstat (limited to 'tests/PathOpsDLineTest.cpp')
-rw-r--r-- | tests/PathOpsDLineTest.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/tests/PathOpsDLineTest.cpp b/tests/PathOpsDLineTest.cpp new file mode 100644 index 0000000000..4108f70afd --- /dev/null +++ b/tests/PathOpsDLineTest.cpp @@ -0,0 +1,54 @@ +/* + * Copyright 2012 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#include "SkPathOpsLine.h" +#include "Test.h" + +static const SkDLine tests[] = { + {{{2, 1}, {2, 1}}}, + {{{2, 1}, {1, 1}}}, + {{{2, 1}, {2, 2}}}, + {{{1, 1}, {2, 2}}}, + {{{3, 0}, {2, 1}}}, + {{{3, 2}, {1, 1}}}, +}; + +static const SkDPoint left[] = { + {2, 1}, + {1, 0}, + {1, 1}, + {1, 2}, + {2, 0}, + {2, 1} +}; + +static const size_t tests_count = sizeof(tests) / sizeof(tests[0]); + +static void DLineTest(skiatest::Reporter* reporter) { + for (size_t index = 0; index < tests_count; ++index) { + const SkDLine& line = tests[index]; + SkDLine line2; + SkPoint pts[2] = {line[0].asSkPoint(), line[1].asSkPoint()}; + line2.set(pts); + REPORTER_ASSERT(reporter, line[0] == line2[0] && line[1] == line2[1]); + const SkDPoint& pt = left[index]; + double result = line.isLeft(pt); + if ((result <= 0 && index >= 1) || (result < 0 && index == 0)) { + SkDebugf("%s [%d] expected left\n", __FUNCTION__, index); + REPORTER_ASSERT(reporter, 0); + } + line2 = line.subDivide(1, 0); + REPORTER_ASSERT(reporter, line[0] == line2[1] && line[1] == line2[0]); + line2 = SkDLine::SubDivide(pts, 1, 0); + REPORTER_ASSERT(reporter, line[0] == line2[1] && line[1] == line2[0]); + SkDPoint mid = line.xyAtT(.5); + REPORTER_ASSERT(reporter, approximately_equal((line[0].fX + line[1].fX) / 2, mid.fX)); + REPORTER_ASSERT(reporter, approximately_equal((line[0].fY + line[1].fY) / 2, mid.fY)); + } +} + +#include "TestClassDef.h" +DEFINE_TESTCLASS("PathOpsLineUtilities", PathOpsLineUtilitiesClass, DLineTest) |