1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gtest/gtest.h"
18
19 #include "chre/util/buffer.h"
20 #include "chre/util/macros.h"
21
22 using chre::Buffer;
23
fillBufferWithSequentialValues(float * buffer,size_t size)24 void fillBufferWithSequentialValues(float *buffer, size_t size) {
25 for (size_t i = 0; i < size; i++) {
26 buffer[i] = static_cast<float>(i);
27 }
28 }
29
TEST(Buffer,EmptyByDefault)30 TEST(Buffer, EmptyByDefault) {
31 Buffer<float> buffer;
32 EXPECT_EQ(buffer.data(), nullptr);
33 EXPECT_EQ(buffer.size(), 0);
34 }
35
TEST(Buffer,Wrap)36 TEST(Buffer, Wrap) {
37 float buf[128];
38 fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
39
40 Buffer<float> buffer;
41 buffer.wrap(buf, ARRAY_SIZE(buf));
42 EXPECT_EQ(buffer.data(), buf);
43 EXPECT_EQ(buffer.size(), ARRAY_SIZE(buf));
44 }
45
TEST(Buffer,CopyArray)46 TEST(Buffer, CopyArray) {
47 float buf[128];
48 fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
49
50 Buffer<float> buffer;
51 EXPECT_TRUE(buffer.copy_array(buf, ARRAY_SIZE(buf)));
52 EXPECT_EQ(buffer.size(), ARRAY_SIZE(buf));
53
54 for (size_t i = 0; i < ARRAY_SIZE(buf); i++) {
55 EXPECT_EQ(buffer.data()[i], static_cast<float>(i));
56 }
57 }
58
TEST(Buffer,CopyArrayEmpty)59 TEST(Buffer, CopyArrayEmpty) {
60 Buffer<float> buffer;
61 EXPECT_TRUE(buffer.copy_array(nullptr, 0));
62 EXPECT_EQ(buffer.data(), nullptr);
63 EXPECT_EQ(buffer.size(), 0);
64 }
65
TEST(Buffer,CopyArrayEmptyAfterWrap)66 TEST(Buffer, CopyArrayEmptyAfterWrap) {
67 float buf[128];
68 fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
69
70 Buffer<float> buffer;
71 buffer.wrap(buf, ARRAY_SIZE(buf));
72 EXPECT_TRUE(buffer.copy_array(nullptr, 0));
73 EXPECT_EQ(buffer.data(), nullptr);
74 EXPECT_EQ(buffer.size(), 0);
75 }
76
TEST(Buffer,CopyArrayEmptyAfterCopy)77 TEST(Buffer, CopyArrayEmptyAfterCopy) {
78 float buf[128];
79 fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
80
81 Buffer<float> buffer;
82 EXPECT_TRUE(buffer.copy_array(buf, ARRAY_SIZE(buf)));
83 EXPECT_TRUE(buffer.copy_array(nullptr, 0));
84 EXPECT_EQ(buffer.data(), nullptr);
85 EXPECT_EQ(buffer.size(), 0);
86 }
87
