Index: ui/gfx/matrix3_unittest.cc |
diff --git a/ui/gfx/matrix3_unittest.cc b/ui/gfx/matrix3_unittest.cc |
deleted file mode 100644 |
index 04c656f6d2607a28f7aae918d6385ef512495dfc..0000000000000000000000000000000000000000 |
--- a/ui/gfx/matrix3_unittest.cc |
+++ /dev/null |
@@ -1,148 +0,0 @@ |
-// Copyright (c) 2013 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. |
- |
-#include <cmath> |
-#include <limits> |
- |
-#include "base/basictypes.h" |
-#include "testing/gtest/include/gtest/gtest.h" |
-#include "ui/gfx/matrix3_f.h" |
- |
-namespace gfx { |
-namespace { |
- |
-TEST(Matrix3fTest, Constructors) { |
- Matrix3F zeros = Matrix3F::Zeros(); |
- Matrix3F ones = Matrix3F::Ones(); |
- Matrix3F identity = Matrix3F::Identity(); |
- |
- Matrix3F product_ones = Matrix3F::FromOuterProduct( |
- Vector3dF(1.0f, 1.0f, 1.0f), Vector3dF(1.0f, 1.0f, 1.0f)); |
- Matrix3F product_zeros = Matrix3F::FromOuterProduct( |
- Vector3dF(1.0f, 1.0f, 1.0f), Vector3dF(0.0f, 0.0f, 0.0f)); |
- EXPECT_EQ(ones, product_ones); |
- EXPECT_EQ(zeros, product_zeros); |
- |
- for (int i = 0; i < 3; ++i) { |
- for (int j = 0; j < 3; ++j) |
- EXPECT_EQ(i == j ? 1.0f : 0.0f, identity.get(i, j)); |
- } |
-} |
- |
-TEST(Matrix3fTest, DataAccess) { |
- Matrix3F matrix = Matrix3F::Ones(); |
- Matrix3F identity = Matrix3F::Identity(); |
- |
- EXPECT_EQ(Vector3dF(0.0f, 1.0f, 0.0f), identity.get_column(1)); |
- matrix.set(0.0f, 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f); |
- EXPECT_EQ(Vector3dF(2.0f, 5.0f, 8.0f), matrix.get_column(2)); |
- matrix.set_column(0, Vector3dF(0.1f, 0.2f, 0.3f)); |
- EXPECT_EQ(Vector3dF(0.1f, 0.2f, 0.3f), matrix.get_column(0)); |
- |
- EXPECT_EQ(0.1f, matrix.get(0, 0)); |
- EXPECT_EQ(5.0f, matrix.get(1, 2)); |
-} |
- |
-TEST(Matrix3fTest, Determinant) { |
- EXPECT_EQ(1.0f, Matrix3F::Identity().Determinant()); |
- EXPECT_EQ(0.0f, Matrix3F::Zeros().Determinant()); |
- EXPECT_EQ(0.0f, Matrix3F::Ones().Determinant()); |
- |
- // Now for something non-trivial... |
- Matrix3F matrix = Matrix3F::Zeros(); |
- matrix.set(0, 5, 6, 8, 7, 0, 1, 9, 0); |
- EXPECT_EQ(390.0f, matrix.Determinant()); |
- matrix.set(2, 0, 3 * matrix.get(0, 0)); |
- matrix.set(2, 1, 3 * matrix.get(0, 1)); |
- matrix.set(2, 2, 3 * matrix.get(0, 2)); |
- EXPECT_EQ(0, matrix.Determinant()); |
- |
- matrix.set(0.57f, 0.205f, 0.942f, |
- 0.314f, 0.845f, 0.826f, |
- 0.131f, 0.025f, 0.962f); |
- EXPECT_NEAR(0.3149f, matrix.Determinant(), 0.0001f); |
-} |
- |
-TEST(Matrix3fTest, Inverse) { |
- Matrix3F identity = Matrix3F::Identity(); |
- Matrix3F inv_identity = identity.Inverse(); |
- EXPECT_EQ(identity, inv_identity); |
- |
- Matrix3F singular = Matrix3F::Zeros(); |
- singular.set(1.0f, 3.0f, 4.0f, |
- 2.0f, 11.0f, 5.0f, |
- 0.5f, 1.5f, 2.0f); |
- EXPECT_EQ(0, singular.Determinant()); |
- EXPECT_EQ(Matrix3F::Zeros(), singular.Inverse()); |
- |
- Matrix3F regular = Matrix3F::Zeros(); |
- regular.set(0.57f, 0.205f, 0.942f, |
- 0.314f, 0.845f, 0.826f, |
- 0.131f, 0.025f, 0.962f); |
- Matrix3F inv_regular = regular.Inverse(); |
- regular.set(2.51540616f, -0.55138018f, -1.98968043f, |
- -0.61552266f, 1.34920184f, -0.55573636f, |
- -0.32653861f, 0.04002158f, 1.32488726f); |
- EXPECT_TRUE(regular.IsNear(inv_regular, 0.00001f)); |
-} |
- |
-TEST(Matrix3fTest, EigenvectorsIdentity) { |
- // This block tests the trivial case of eigenvalues of the identity matrix. |
- Matrix3F identity = Matrix3F::Identity(); |
- Vector3dF eigenvals = identity.SolveEigenproblem(NULL); |
- EXPECT_EQ(Vector3dF(1.0f, 1.0f, 1.0f), eigenvals); |
-} |
- |
-TEST(Matrix3fTest, EigenvectorsDiagonal) { |
- // This block tests the another trivial case of eigenvalues of a diagonal |
- // matrix. Here we expect values to be sorted. |
- Matrix3F matrix = Matrix3F::Zeros(); |
- matrix.set(0, 0, 1.0f); |
- matrix.set(1, 1, -2.5f); |
- matrix.set(2, 2, 3.14f); |
- Matrix3F eigenvectors = Matrix3F::Zeros(); |
- Vector3dF eigenvals = matrix.SolveEigenproblem(&eigenvectors); |
- EXPECT_EQ(Vector3dF(3.14f, 1.0f, -2.5f), eigenvals); |
- |
- EXPECT_EQ(Vector3dF(0.0f, 0.0f, 1.0f), eigenvectors.get_column(0)); |
- EXPECT_EQ(Vector3dF(1.0f, 0.0f, 0.0f), eigenvectors.get_column(1)); |
- EXPECT_EQ(Vector3dF(0.0f, 1.0f, 0.0f), eigenvectors.get_column(2)); |
-} |
- |
-TEST(Matrix3fTest, EigenvectorsNiceNotPositive) { |
- // This block tests computation of eigenvectors of a matrix where nice |
- // round values are expected. |
- Matrix3F matrix = Matrix3F::Zeros(); |
- // This is not a positive-definite matrix but eigenvalues and the first |
- // eigenvector should nonetheless be computed correctly. |
- matrix.set(3, 2, 4, 2, 0, 2, 4, 2, 3); |
- Matrix3F eigenvectors = Matrix3F::Zeros(); |
- Vector3dF eigenvals = matrix.SolveEigenproblem(&eigenvectors); |
- EXPECT_EQ(Vector3dF(8.0f, -1.0f, -1.0f), eigenvals); |
- |
- Vector3dF expected_principal(0.66666667f, 0.33333333f, 0.66666667f); |
- EXPECT_NEAR(0.0f, |
- (expected_principal - eigenvectors.get_column(0)).Length(), |
- 0.000001f); |
-} |
- |
-TEST(Matrix3fTest, EigenvectorsPositiveDefinite) { |
- // This block tests computation of eigenvectors of a matrix where output |
- // is not as nice as above, but it actually meets the definition. |
- Matrix3F matrix = Matrix3F::Zeros(); |
- Matrix3F eigenvectors = Matrix3F::Zeros(); |
- Matrix3F expected_eigenvectors = Matrix3F::Zeros(); |
- matrix.set(1, -1, 2, -1, 4, 5, 2, 5, 0); |
- Vector3dF eigenvals = matrix.SolveEigenproblem(&eigenvectors); |
- Vector3dF expected_eigv(7.3996266f, 1.91197255f, -4.31159915f); |
- expected_eigv -= eigenvals; |
- EXPECT_NEAR(0, expected_eigv.LengthSquared(), 0.00001f); |
- expected_eigenvectors.set(0.04926317f, -0.92135662f, -0.38558414f, |
- 0.82134249f, 0.25703273f, -0.50924521f, |
- 0.56830419f, -0.2916096f, 0.76941158f); |
- EXPECT_TRUE(expected_eigenvectors.IsNear(eigenvectors, 0.00001f)); |
-} |
- |
-} |
-} |