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