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buffer_builder_test.h
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buffer_builder_test.h
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#ifndef BUFFER_BUILDER_TEST_H_
#define BUFFER_BUILDER_TEST_H_
#include "buffer_builder.h"
#include <gtest/gtest.h>
namespace pil {
TEST(BufferBuilderTests, EmptyAllocation) {
BufferBuilder builder;
ASSERT_EQ(0, builder.length());
ASSERT_EQ(0, builder.capacity());
}
TEST(BufferBuilderTests, SingleAddition) {
BufferBuilder builder;
uint64_t val = 451;
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(&val), sizeof(uint64_t)));
ASSERT_EQ(sizeof(uint64_t), builder.length());
const uint64_t* data = reinterpret_cast<const uint64_t*>(builder.data());
ASSERT_EQ(451, data[0]);
}
TEST(BufferBuilderTests, MultipleAdditions) {
BufferBuilder builder;
for(int i = 0; i < 100; ++i) {
uint64_t val = 451 + i;
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(&val), sizeof(uint64_t)));
ASSERT_EQ(sizeof(uint64_t)*(i+1), builder.length());
}
ASSERT_EQ(sizeof(uint64_t)*100, builder.length());
const uint64_t* data = reinterpret_cast<const uint64_t*>(builder.data());
for(int i = 0; i < 100; ++i) {
ASSERT_EQ(451 + i, data[i]);
}
}
TEST(BufferBuilderTests, ArrayAddition) {
BufferBuilder builder;
std::vector<uint64_t> vals = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(vals.data()), sizeof(uint64_t)*vals.size()));
ASSERT_EQ(sizeof(uint64_t)*vals.size(), builder.length());
const uint64_t* data = reinterpret_cast<const uint64_t*>(builder.data());
for(size_t i = 0; i < vals.size(); ++i) ASSERT_EQ(i+1, data[i]);
}
TEST(BufferBuilderTests, ArrayAdditionUnsafeShrink) {
BufferBuilder builder;
std::vector<uint64_t> vals = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(vals.data()), sizeof(uint64_t)*vals.size()));
ASSERT_EQ(sizeof(uint64_t)*vals.size(), builder.length());
builder.UnsafeSetLength(sizeof(uint64_t)*4);
ASSERT_EQ(sizeof(uint64_t)*4, builder.length());
}
TEST(BufferBuilderTests, ArrayAdditionUnsafeShrinkAddition) {
BufferBuilder builder;
std::vector<uint64_t> vals = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(vals.data()), sizeof(uint64_t)*vals.size()));
ASSERT_EQ(sizeof(uint64_t)*vals.size(), builder.length());
builder.UnsafeSetLength(sizeof(uint64_t)*4);
ASSERT_EQ(sizeof(uint64_t)*4, builder.length());
vals = {35};
ASSERT_EQ(1, builder.Append(reinterpret_cast<uint8_t*>(vals.data()), sizeof(uint64_t)*vals.size()));
ASSERT_EQ(sizeof(uint64_t)*5, builder.length());
const uint64_t* data = reinterpret_cast<const uint64_t*>(builder.data());
ASSERT_EQ(35, data[4]);
}
}
#endif /* BUFFER_BUILDER_TEST_H_ */