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caryclark@google.com07393ca2013-04-08 11:47:37 +00001/*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
caryclark@google.com8d0a5242013-07-16 16:11:16 +00007#include "PathOpsTestCommon.h"
caryclark@google.com07393ca2013-04-08 11:47:37 +00008#include "SkPathOpsPoint.h"
9#include "Test.h"
10
11static const SkDPoint tests[] = {
12 {0, 0},
13 {1, 0},
14 {0, 1},
15 {2, 1},
16 {1, 2},
17 {1, 1},
18 {2, 2}
19};
20
caryclark@google.comad65a3e2013-04-15 19:13:59 +000021static const size_t tests_count = SK_ARRAY_COUNT(tests);
caryclark@google.com07393ca2013-04-08 11:47:37 +000022
caryclark@google.comad65a3e2013-04-15 19:13:59 +000023static void PathOpsDVectorTest(skiatest::Reporter* reporter) {
caryclark@google.com07393ca2013-04-08 11:47:37 +000024 for (size_t index = 0; index < tests_count - 1; ++index) {
25 SkDVector v1 = tests[index + 1] - tests[index];
caryclark@google.com8d0a5242013-07-16 16:11:16 +000026 SkASSERT(ValidVector(v1));
caryclark@google.com07393ca2013-04-08 11:47:37 +000027 SkDVector v2 = tests[index] - tests[index + 1];
caryclark@google.com8d0a5242013-07-16 16:11:16 +000028 SkASSERT(ValidVector(v2));
caryclark@google.com07393ca2013-04-08 11:47:37 +000029 v1 += v2;
30 REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
31 SkDPoint p = tests[index + 1] + v2;
32 REPORTER_ASSERT(reporter, p == tests[index]);
33 v2 -= v2;
34 REPORTER_ASSERT(reporter, v2.fX == 0 && v2.fY == 0);
35 v1 = tests[index + 1] - tests[index];
36 v1 /= 2;
37 v1 *= 2;
38 v1 -= tests[index + 1] - tests[index];
39 REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
40 SkVector sv = v1.asSkVector();
41 REPORTER_ASSERT(reporter, sv.fX == 0 && sv.fY == 0);
42 v1 = tests[index + 1] - tests[index];
43 double lenSq = v1.lengthSquared();
44 double v1Dot = v1.dot(v1);
45 REPORTER_ASSERT(reporter, lenSq == v1Dot);
46 REPORTER_ASSERT(reporter, approximately_equal(sqrt(lenSq), v1.length()));
47 double v1Cross = v1.cross(v1);
48 REPORTER_ASSERT(reporter, v1Cross == 0);
49 }
50}
51
52#include "TestClassDef.h"
caryclark@google.comad65a3e2013-04-15 19:13:59 +000053DEFINE_TESTCLASS_SHORT(PathOpsDVectorTest)