1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <gtest/gtest.h>
17
18#include "wm_math.h"
19
20using namespace testing;
21using namespace testing::ext;
22
23namespace OHOS {
24namespace Rosen {
25using namespace TransformHelper;
26class WmMathTest : public testing::Test {
27public:
28    static void SetUpTestCase();
29    static void TearDownTestCase();
30    virtual void SetUp() override;
31    virtual void TearDown() override;
32};
33
34void WmMathTest::SetUpTestCase()
35{
36}
37
38void WmMathTest::TearDownTestCase()
39{
40}
41
42void WmMathTest::SetUp()
43{
44}
45
46void WmMathTest::TearDown()
47{
48}
49
50namespace {
51/**
52 * @tc.name: MathHalper
53 * @tc.desc: MathHalper test
54 * @tc.type: FUNC
55 */
56HWTEST_F(WmMathTest, MathHalper, Function | SmallTest | Level2)
57{
58    {
59        const float t = 0.5f;
60        ASSERT_EQ(true, MathHelper::NearZero(0));
61        ASSERT_EQ(true, MathHelper::NearZero(t * MathHelper::NAG_ZERO));
62        ASSERT_EQ(true, MathHelper::NearZero(t * MathHelper::POS_ZERO));
63    }
64    {
65        float radians = MathHelper::PI, degrees = 180.f;
66        ASSERT_EQ(true, MathHelper::NearZero(MathHelper::ToDegrees(radians) - degrees));
67        ASSERT_EQ(true, MathHelper::NearZero(MathHelper::ToRadians(degrees) - radians));
68    }
69    {
70        int a = 1, b = 2, c = 3, d = 4;
71        ASSERT_EQ(true, MathHelper::Max(a, b, c) == c);
72        ASSERT_EQ(true, MathHelper::Min(a, b, c) == a);
73        ASSERT_EQ(true, MathHelper::Max(a, b, c, d) == d);
74        ASSERT_EQ(true, MathHelper::Min(a, b, c, d) == a);
75        ASSERT_EQ(true, MathHelper::Clamp(a, b, c) == b);
76        ASSERT_EQ(true, MathHelper::Clamp(b, a, c) == b);
77        ASSERT_EQ(true, MathHelper::Clamp(c, a, b) == b);
78    }
79}
80
81/**
82 * @tc.name: TransformMatrix
83 * @tc.desc: Create transform matrix
84 *           Get scale component from transform matrix
85 *           Get translation component from transform matrix
86 * @tc.type: FUNC
87 */
88HWTEST_F(WmMathTest, TransformMatrix, Function | SmallTest | Level2)
89{
90    Vector3 scale(1.5f, 0.7f, 2.2f), translation(100.f, 132.f, 20.f);
91    Matrix4 transformMat = CreateScale(scale.x_, scale.y_, scale.z_);
92    float theta = 2.34f;
93    transformMat *= CreateRotationY(theta);
94    transformMat *= CreateTranslation(translation);
95    Vector3 scaleComp = transformMat.GetScale();
96    Vector3 translationComp = transformMat.GetTranslation();
97    ASSERT_EQ(true, MathHelper::NearZero((scale - scaleComp).Length()));
98    ASSERT_EQ(true, MathHelper::NearZero((translation - translationComp).Length()));
99}
100/**
101 * @tc.name: TransformWithPerspDiv
102 * @tc.desc: Create transform matrix
103 *           Get scale component from transform matrix
104 *           Get translation component from transform matrix
105 * @tc.type: FUNC
106 */
107HWTEST_F(WmMathTest, TransformWithPerspDiv, Function | SmallTest | Level2)
108{
109    Vector3 vec(1.0, 1.0, 1.0);
110    Matrix4 mat = Matrix4::Identity;
111    auto result = TransformWithPerspDiv(vec, mat, 0.5);
112    auto expect = vec * 2;
113    ASSERT_EQ(expect.x_, result.x_);
114    ASSERT_EQ(expect.y_, result.y_);
115    ASSERT_EQ(expect.z_, result.z_);
116
117    result = TransformWithPerspDiv(vec, mat, 0);
118    ASSERT_EQ(vec.x_, result.x_);
119    ASSERT_EQ(vec.y_, result.y_);
120    ASSERT_EQ(vec.z_, result.z_);
121}
122
123/**
124 * @tc.name: Invert
125 * @tc.desc:
126 * @tc.type: FUNC
127 */
128HWTEST_F(WmMathTest, Invert, Function | SmallTest | Level2)
129{
130    Matrix4 mat;
131    mat.mat_[0][0] = 0.f;
132    mat.mat_[1][0] = -1.0f;
133    mat.Invert();
134    ASSERT_EQ(false, MathHelper::NearZero(0.f - mat.mat_[1][0]));
135}
136
137/**
138 * @tc.name: Invert02
139 * @tc.desc:
140 * @tc.type: FUNC
141 */
142HWTEST_F(WmMathTest, Invert02, Function | SmallTest | Level2)
143{
144    Matrix4 mat;
145    mat.mat_[0][0] = 10.0f;
146    mat.mat_[1][0] = -1.0f;
147    mat.Invert();
148    ASSERT_EQ(false, MathHelper::NearZero(0.f - mat.mat_[1][0]));
149}
150
151/**
152 * @tc.name: Invert02
153 * @tc.desc:
154 * @tc.type: FUNC
155 */
156HWTEST_F(WmMathTest, Invert03, Function | SmallTest | Level2)
157{
158    Matrix4 mat;
159    mat.mat_[0][0] = 0.f;
160    mat.mat_[1][0] = 0.f;
161    mat.Invert();
162    ASSERT_EQ(false, MathHelper::NearZero(0.f - mat.mat_[1][0]));
163}
164
165/**
166 * @tc.name: Invert02
167 * @tc.desc:
168 * @tc.type: FUNC
169 */
170HWTEST_F(WmMathTest, Invert04, Function | SmallTest | Level2)
171{
172    Matrix4 mat;
173    mat.mat_[0][0] = 10.0f;
174    mat.mat_[1][0] = 0.f;
175    mat.Invert();
176    ASSERT_EQ(false, MathHelper::NearZero(0.f - mat.mat_[1][0]));
177}
178}
179} // namespace Rosen
180} // namespace OHOS