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      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 "SkPathOpsLine.h"
      9 #include "Test.h"
     10 
     11 static const SkDLine tests[] = {
     12     {{{2, 1}, {2, 1}}},
     13     {{{2, 1}, {1, 1}}},
     14     {{{2, 1}, {2, 2}}},
     15     {{{1, 1}, {2, 2}}},
     16     {{{3, 0}, {2, 1}}},
     17     {{{3, 2}, {1, 1}}},
     18 };
     19 
     20 static const SkDPoint left[] = {
     21     {2, 1},
     22     {1, 0},
     23     {1, 1},
     24     {1, 2},
     25     {2, 0},
     26     {2, 1}
     27 };
     28 
     29 static const size_t tests_count = SK_ARRAY_COUNT(tests);
     30 
     31 DEF_TEST(PathOpsLineUtilities, reporter) {
     32     for (size_t index = 0; index < tests_count; ++index) {
     33         const SkDLine& line = tests[index];
     34         SkASSERT(ValidLine(line));
     35         SkDLine line2;
     36         SkPoint pts[2] = {line[0].asSkPoint(), line[1].asSkPoint()};
     37         line2.set(pts);
     38         REPORTER_ASSERT(reporter, line[0] == line2[0] && line[1] == line2[1]);
     39         const SkDPoint& pt = left[index];
     40         SkASSERT(ValidPoint(pt));
     41         double result = line.isLeft(pt);
     42         if ((result <= 0 && index >= 1) || (result < 0 && index == 0)) {
     43             SkDebugf("%s [%d] expected left\n", __FUNCTION__, index);
     44             REPORTER_ASSERT(reporter, 0);
     45         }
     46         SkDPoint mid = line.ptAtT(.5);
     47         REPORTER_ASSERT(reporter, approximately_equal((line[0].fX + line[1].fX) / 2, mid.fX));
     48         REPORTER_ASSERT(reporter, approximately_equal((line[0].fY + line[1].fY) / 2, mid.fY));
     49     }
     50 }
     51