text: // Copyright 2021 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.
  
  #ifndef UI_GFX_GEOMETRY_TEST_TRANSFORM_TEST_UTIL_H_
  #define UI_GFX_GEOMETRY_TEST_TRANSFORM_TEST_UTIL_H_
  
  #include "ui/gfx/transform.h"
  
  namespace gfx {
  
  // This is a function rather than a macro because when this is included as a
  // macro in bulk, it causes a significant slow-down in compilation time. This
  // problem exists with both gcc and clang, and bugs have been filed at
  // http://llvm.org/bugs/show_bug.cgi?id=13651
  // and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
  void ExpectTransformationMatrixEq(const Transform& expected,
                                    const Transform& actual);
  
  void ExpectTransformationMatrixNear(const Transform& expected,
                                      const Transform& actual,
                                      float abs_error);
  
  // Should be used in test code only, for convenience. Production code should use
  // the gfx::Transform::GetInverse() API.
  Transform InvertAndCheck(const Transform& transform);
  
  }  // namespace gfx
  
  #endif  // UI_GFX_GEOMETRY_TEST_TRANSFORM_TEST_UTIL_H_
  