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