third_party/WebKit/Source/platform/geometry/FloatBoxTestHelpers.cpp

   1 /*
   2  * Copyright (C) 2014 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1.  Redistributions of source code must retain the above copyright
   8  *     notice, this list of conditions and the following disclaimer.
   9  * 2.  Redistributions in binary form must reproduce the above copyright
  10  *     notice, this list of conditions and the following disclaimer in the
  11  *     documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include "config.h"
  26 #include "platform/geometry/FloatBoxTestHelpers.h"
  27 #include "platform/geometry/GeometryTestHelpers.h"
  28
  29 #include "platform/geometry/FloatBox.h"
  30 const static float kTestEpsilon = 1e-6;
  31
  32 namespace blink {
  33 namespace FloatBoxTest {
  34
  35 bool ApproximatelyEqual(const float& a, const float& b)
  36 {
  37     return GeometryTest::ApproximatelyEqual(a, b, kTestEpsilon);
  38 }
  39
  40 bool ApproximatelyEqual(const FloatBox& a, const FloatBox& b)
  41 {
  42     if (!ApproximatelyEqual(a.x(), b.x())
  43         || !ApproximatelyEqual(a.y(), b.y())
  44         || !ApproximatelyEqual(a.z(), b.z())
  45         || !ApproximatelyEqual(a.width(), b.width())
  46         || !ApproximatelyEqual(a.height(), b.height())
  47         || !ApproximatelyEqual(a.depth(), b.depth())) {
  48         return false;
  49     }
  50     return true;
  51 }
  52
  53 ::testing::AssertionResult AssertAlmostEqual(const char* m_expr, const char* n_expr, const FloatBox& m, const FloatBox& n)
  54 {
  55     if (!ApproximatelyEqual(m, n)) {
  56         return ::testing::AssertionFailure() << "       Value of:" << n_expr << std::endl
  57             << "         Actual:" << testing::PrintToString(n) << std::endl
  58             << "Expected Approx:" << m_expr << std::endl
  59             << "       Which is:" << ::testing::PrintToString(m);
  60     }
  61     return ::testing::AssertionSuccess();
  62 }
  63
  64 ::testing::AssertionResult AssertContains(const char* m_expr, const char* n_expr, const FloatBox& m, const FloatBox& n)
  65 {
  66     FloatBox newM = m;
  67     newM.expandTo(n);
  68     if (!ApproximatelyEqual(m, newM)) {
  69         return ::testing::AssertionFailure() << "        Value of:" << n_expr << std::endl
  70             << "          Actual:" << testing::PrintToString(n) << std::endl
  71             << "Not Contained in:" << m_expr << std::endl
  72             << "        Which is:" << ::testing::PrintToString(m);
  73     }
  74     return ::testing::AssertionSuccess();
  75 }
  76
  77 } // namespace FloatBoxTest
  78 } // namespace blink