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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "gtest/gtest.h"
#include "chre/util/buffer.h"
#include "chre/util/macros.h"
using chre::Buffer;
void fillBufferWithSequentialValues(float *buffer, size_t size) {
for (size_t i = 0; i < size; i++) {
buffer[i] = static_cast<float>(i);
}
}
TEST(Buffer, EmptyByDefault) {
Buffer<float> buffer;
EXPECT_EQ(buffer.data(), nullptr);
EXPECT_EQ(buffer.size(), 0);
}
TEST(Buffer, Wrap) {
float buf[128];
fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
Buffer<float> buffer;
buffer.wrap(buf, ARRAY_SIZE(buf));
EXPECT_EQ(buffer.data(), buf);
EXPECT_EQ(buffer.size(), ARRAY_SIZE(buf));
}
TEST(Buffer, CopyArray) {
float buf[128];
fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
Buffer<float> buffer;
EXPECT_TRUE(buffer.copy_array(buf, ARRAY_SIZE(buf)));
EXPECT_EQ(buffer.size(), ARRAY_SIZE(buf));
for (size_t i = 0; i < ARRAY_SIZE(buf); i++) {
EXPECT_EQ(buffer.data()[i], static_cast<float>(i));
}
}
TEST(Buffer, CopyArrayEmpty) {
Buffer<float> buffer;
EXPECT_TRUE(buffer.copy_array(nullptr, 0));
EXPECT_EQ(buffer.data(), nullptr);
EXPECT_EQ(buffer.size(), 0);
}
TEST(Buffer, CopyArrayEmptyAfterWrap) {
float buf[128];
fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
Buffer<float> buffer;
buffer.wrap(buf, ARRAY_SIZE(buf));
EXPECT_TRUE(buffer.copy_array(nullptr, 0));
EXPECT_EQ(buffer.data(), nullptr);
EXPECT_EQ(buffer.size(), 0);
}
TEST(Buffer, CopyArrayEmptyAfterCopy) {
float buf[128];
fillBufferWithSequentialValues(buf, ARRAY_SIZE(buf));
Buffer<float> buffer;
EXPECT_TRUE(buffer.copy_array(buf, ARRAY_SIZE(buf)));
EXPECT_TRUE(buffer.copy_array(nullptr, 0));
EXPECT_EQ(buffer.data(), nullptr);
EXPECT_EQ(buffer.size(), 0);
}