| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/core/svg/svg_path_query.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/blink/renderer/core/svg/svg_path_byte_stream.h" |
| #include "third_party/blink/renderer/core/svg/svg_path_utilities.h" |
| #include "third_party/blink/renderer/platform/geometry/float_point.h" |
| |
| namespace blink { |
| namespace { |
| |
| void PointsApproximatelyEqual(const FloatPoint& p1, |
| const FloatPoint& p2, |
| float epsilon) { |
| EXPECT_NEAR(p1.X(), p2.X(), epsilon); |
| EXPECT_NEAR(p1.Y(), p2.Y(), epsilon); |
| } |
| |
| TEST(SVGPathQueryTest, PointAtLength_ArcDecomposedToMultipleCubics) { |
| SVGPathByteStream path_stream; |
| ASSERT_EQ(BuildByteStreamFromString("M56.2,66.2a174.8,174.8,0,1,0,276.0,-2.0", |
| path_stream), |
| SVGParseStatus::kNoError); |
| |
| const float step = 7.80249691f; |
| PointsApproximatelyEqual(SVGPathQuery(path_stream).GetPointAtLength(0), |
| FloatPoint(56.200f, 66.200f), 0.0005f); |
| PointsApproximatelyEqual(SVGPathQuery(path_stream).GetPointAtLength(step), |
| FloatPoint(51.594f, 72.497f), 0.0005f); |
| PointsApproximatelyEqual(SVGPathQuery(path_stream).GetPointAtLength(2 * step), |
| FloatPoint(47.270f, 78.991f), 0.0005f); |
| PointsApproximatelyEqual(SVGPathQuery(path_stream).GetPointAtLength(3 * step), |
| FloatPoint(43.239f, 85.671f), 0.0005f); |
| } |
| |
| } // namespace |
| } // namespace blink |
