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/*
* 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 "SkPathOpsPoint.h"
#include "Test.h"
static const SkDPoint tests[] = {
{0, 0},
{1, 0},
{0, 1},
{2, 1},
{1, 2},
{1, 1},
{2, 2}
};
static const size_t tests_count = sizeof(tests) / sizeof(tests[0]);
static void DVectorTest(skiatest::Reporter* reporter) {
for (size_t index = 0; index < tests_count - 1; ++index) {
SkDVector v1 = tests[index + 1] - tests[index];
SkDVector v2 = tests[index] - tests[index + 1];
v1 += v2;
REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
SkDPoint p = tests[index + 1] + v2;
REPORTER_ASSERT(reporter, p == tests[index]);
v2 -= v2;
REPORTER_ASSERT(reporter, v2.fX == 0 && v2.fY == 0);
v1 = tests[index + 1] - tests[index];
v1 /= 2;
v1 *= 2;
v1 -= tests[index + 1] - tests[index];
REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
SkVector sv = v1.asSkVector();
REPORTER_ASSERT(reporter, sv.fX == 0 && sv.fY == 0);
v1 = tests[index + 1] - tests[index];
double lenSq = v1.lengthSquared();
double v1Dot = v1.dot(v1);
REPORTER_ASSERT(reporter, lenSq == v1Dot);
REPORTER_ASSERT(reporter, approximately_equal(sqrt(lenSq), v1.length()));
double v1Cross = v1.cross(v1);
REPORTER_ASSERT(reporter, v1Cross == 0);
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("PathOpsDVector", PathOpsDVectorClass, DVectorTest)
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