1 /*
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 */
7 #include "PathOpsTestCommon.h"
8 #include "SkPathOpsPoint.h"
9 #include "Test.h"
10
11 static 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
21 static const size_t tests_count = SK_ARRAY_COUNT(tests);
22
DEF_TEST(PathOpsDVector,reporter)23 DEF_TEST(PathOpsDVector, reporter) {
24 for (size_t index = 0; index < tests_count - 1; ++index) {
25 SkDVector v1 = tests[index + 1] - tests[index];
26 SkASSERT(ValidVector(v1));
27 SkDVector v2 = tests[index] - tests[index + 1];
28 SkASSERT(ValidVector(v2));
29 v1 += v2;
30 REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
31 v2 -= static_cast<decltype(v2)&>(v2);
32 REPORTER_ASSERT(reporter, v2.fX == 0 && v2.fY == 0);
33 v1 = tests[index + 1] - tests[index];
34 v1 /= 2;
35 v1 *= 2;
36 v1 -= tests[index + 1] - tests[index];
37 REPORTER_ASSERT(reporter, v1.fX == 0 && v1.fY == 0);
38 SkVector sv = v1.asSkVector();
39 REPORTER_ASSERT(reporter, sv.fX == 0 && sv.fY == 0);
40 v1 = tests[index + 1] - tests[index];
41 double lenSq = v1.lengthSquared();
42 double v1Dot = v1.dot(v1);
43 REPORTER_ASSERT(reporter, lenSq == v1Dot);
44 REPORTER_ASSERT(reporter, approximately_equal(sqrt(lenSq), v1.length()));
45 double v1Cross = v1.cross(v1);
46 REPORTER_ASSERT(reporter, v1Cross == 0);
47 }
48 }
49