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

/*
 * Copyright (C) 2014 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
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#include "platform/geometry/FloatBoxTestHelpers.h"

#include "platform/geometry/FloatBox.h"
#include "platform/geometry/GeometryTestHelpers.h"

const static float kTestEpsilon = 1e-6;

namespace blink {
namespace FloatBoxTest {

bool ApproximatelyEqual(const float& a, const float& b) {
  return GeometryTest::ApproximatelyEqual(a, b, kTestEpsilon);
}

bool 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 AssertAlmostEqual(const char* 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:" << expr << std::endl
           << "       Which is:" << ::testing::PrintToString(m);
  }
  return ::testing::AssertionSuccess();
}

::testing::AssertionResult AssertContains(const char* expr,
                                          const char* n_expr,
                                          const FloatBox& m,
                                          const FloatBox& n) {
  FloatBox new_m = m;
  new_m.ExpandTo(n);
  if (!ApproximatelyEqual(m, new_m)) {
    return ::testing::AssertionFailure()
           << "        Value of:" << n_expr << std::endl
           << "          Actual:" << ::testing::PrintToString(n) << std::endl
           << "Not Contained in:" << expr << std::endl
           << "        Which is:" << ::testing::PrintToString(m);
  }
  return ::testing::AssertionSuccess();
}

}  // namespace FloatBoxTest
}  // namespace blink