diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp')
-rw-r--r-- | chromium/third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp b/chromium/third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp new file mode 100644 index 00000000000..b32ea13b535 --- /dev/null +++ b/chromium/third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2014 Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "platform/geometry/FloatBoxTestHelpers.h" + +#include "platform/geometry/FloatBox.h" +const static float kTestEpsilon = 1e-6; + +void WebCore::PrintTo(const FloatBox& box, ::std::ostream* os) +{ + *os << "FloatBox(" + << box.x() << ", " + << box.y() << ", " + << box.z() << ", " + << box.width() << ", " + << box.height() << ", " + << box.depth() << ")"; +} + +bool WebCore::FloatBoxTest::ApproximatelyEqual(const float& a, const float& b) +{ + float absA = ::fabs(a); + float absB = ::fabs(b); + float absErr = ::fabs(a - b); + if (a == b) + return true; + + if (a == 0 || b == 0 || absErr < std::numeric_limits<float>::min()) + return absErr < (kTestEpsilon * std::numeric_limits<float>::min()); + + return ((absErr / (absA + absB)) < kTestEpsilon); +} + +bool WebCore::FloatBoxTest::ApproximatelyEqual(const FloatBox& a, const FloatBox& b) +{ + if (!ApproximatelyEqual(a.x(), b.x()) + || !ApproximatelyEqual(a.y(), b.y()) + || !ApproximatelyEqual(a.z(), b.z()) + || !ApproximatelyEqual(a.width(), b.width()) + || !ApproximatelyEqual(a.height(), b.height()) + || !ApproximatelyEqual(a.depth(), b.depth())) { + return false; + } + return true; +} + +::testing::AssertionResult WebCore::FloatBoxTest::AssertAlmostEqual(const char* m_expr, const char* n_expr, const FloatBox& m, const FloatBox& n) +{ + if (!ApproximatelyEqual(m, n)) { + return ::testing::AssertionFailure() << " Value of:" << n_expr << std::endl + << " Actual:" << testing::PrintToString(n) << std::endl + << "Expected Approx:" << m_expr << std::endl + << " Which is:" << ::testing::PrintToString(m); + } + return ::testing::AssertionSuccess(); +} + +::testing::AssertionResult WebCore::FloatBoxTest::AssertContains(const char* m_expr, const char* n_expr, const FloatBox& m, const FloatBox& n) +{ + FloatBox newM = m; + newM.expandTo(n); + if (!ApproximatelyEqual(m, newM)) { + return ::testing::AssertionFailure() << " Value of:" << n_expr << std::endl + << " Actual:" << testing::PrintToString(n) << std::endl + << "Not Contained in:" << m_expr << std::endl + << " Which is:" << ::testing::PrintToString(m); + } + return ::testing::AssertionSuccess(); +} + + |