xref: /aosp_15_r20/external/skia/tests/PathOpsDLineTest.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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 "include/core/SkPoint.h"
8 #include "include/core/SkTypes.h"
9 #include "src/pathops/SkPathOpsLine.h"
10 #include "src/pathops/SkPathOpsPoint.h"
11 #include "src/pathops/SkPathOpsTypes.h"
12 #include "tests/PathOpsTestCommon.h"
13 #include "tests/Test.h"
14 
15 #include <array>
16 #include <cstddef>
17 
18 static const SkDLine tests[] = {
19     {{{2, 1}, {2, 1}}},
20     {{{2, 1}, {1, 1}}},
21     {{{2, 1}, {2, 2}}},
22     {{{1, 1}, {2, 2}}},
23     {{{3, 0}, {2, 1}}},
24     {{{3, 2}, {1, 1}}},
25 };
26 
27 static const size_t tests_count = std::size(tests);
28 
DEF_TEST(PathOpsLineUtilities,reporter)29 DEF_TEST(PathOpsLineUtilities, reporter) {
30     for (size_t index = 0; index < tests_count; ++index) {
31         const SkDLine& line = tests[index];
32         SkASSERT(ValidLine(line));
33         SkDLine line2;
34         SkPoint pts[2] = {line[0].asSkPoint(), line[1].asSkPoint()};
35         line2.set(pts);
36         REPORTER_ASSERT(reporter, line[0] == line2[0] && line[1] == line2[1]);
37         SkDPoint mid = line.ptAtT(.5);
38         REPORTER_ASSERT(reporter, approximately_equal((line[0].fX + line[1].fX) / 2, mid.fX));
39         REPORTER_ASSERT(reporter, approximately_equal((line[0].fY + line[1].fY) / 2, mid.fY));
40     }
41 }
42