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#include "common.hh"
#include "game/ringbuffer.hh"
#include <vector>
TEST(UnitTest_RingBuffer, default_ctor) {
EXPECT_EQ(0, RingBuffer<16>().size());
EXPECT_EQ(16, RingBuffer<16>().capacity);
}
TEST(UnitTest_RingBuffer, insert) {
auto buffer = RingBuffer<16>();
EXPECT_EQ(0, buffer.size());
auto const data = std::vector<float>{1.f, 2.f};
buffer.insert(data.begin(), data.end());
EXPECT_EQ(2, buffer.size());
}
TEST(UnitTest_RingBuffer, insert_2) {
auto buffer = RingBuffer<16>();
EXPECT_EQ(0, buffer.size());
auto const data = std::vector<float>{1.f, 2.f, 3.f};
buffer.insert(data.begin(), data.end());
buffer.insert(data.begin(), data.end());
EXPECT_EQ(6, buffer.size());
}
TEST(UnitTest_RingBuffer, insert_fill) {
auto buffer = RingBuffer<4>();
EXPECT_EQ(0, buffer.size());
auto const data = std::vector<float>{1.f, 2.f, 3.f, 4.f};
buffer.insert(data.begin(), data.end());
EXPECT_EQ(4, buffer.size());
}
TEST(UnitTest_RingBuffer, insert_1_overflow) {
auto buffer = RingBuffer<4>();
EXPECT_EQ(0, buffer.size());
auto const data = std::vector<float>{1.f, 2.f, 3.f, 4.f, 5.f, 6.f};
buffer.insert(data.begin(), data.end());
EXPECT_EQ(4, buffer.size());
auto dataOut = std::vector<float>{0.f,0.f,0.f,0.f};
buffer.read(dataOut.begin(), dataOut.end());
EXPECT_EQ(4, buffer.size());
EXPECT_THAT(dataOut, ElementsAre(3.f, 4.f, 5.f, 6.f));
}
TEST(UnitTest_RingBuffer, insert_2_overflow) {
auto buffer = RingBuffer<4>();
EXPECT_EQ(0, buffer.size());
auto const data0 = std::vector<float>{1.f, 2.f, 3.f};
auto const data1 = std::vector<float>{4.f, 5.f, 6.f};
buffer.insert(data0.begin(), data0.end());
buffer.insert(data1.begin(), data1.end());
EXPECT_EQ(4, buffer.size());
auto dataOut = std::vector<float>(4);
buffer.read(dataOut.begin(), dataOut.end());
EXPECT_EQ(4, buffer.size());
EXPECT_THAT(dataOut, ElementsAre(3.f, 4.f, 5.f, 6.f));
}
TEST(UnitTest_RingBuffer, read) {
auto buffer = RingBuffer<16>();
EXPECT_EQ(0, buffer.size());
auto const dataIn = std::vector<float>{1.f, 2.f, 3.f};
buffer.insert(dataIn.begin(), dataIn.end());
auto dataOut = std::vector<float>{0.f, 0.f};
EXPECT_TRUE(buffer.read(dataOut.begin(), dataOut.end()));
EXPECT_EQ(3, buffer.size());
EXPECT_THAT(dataOut, ElementsAre(1.f, 2.f));
}
TEST(UnitTest_RingBuffer, read_to_empty) {
auto buffer = RingBuffer<16>();
EXPECT_EQ(0, buffer.size());
auto const dataIn = std::vector<float>{1.f, 2.f, 3.f};
buffer.insert(dataIn.begin(), dataIn.end());
auto dataOut = std::vector<float>{};
EXPECT_TRUE(buffer.read(dataOut.begin(), dataOut.end()));
EXPECT_EQ(3, buffer.size());
EXPECT_THAT(dataOut, ElementsAre());
}
TEST(UnitTest_RingBuffer, read_underflow) {
auto buffer = RingBuffer<16>();
EXPECT_EQ(0, buffer.size());
auto const dataIn = std::vector<float>{1.f, 2.f, 3.f};
buffer.insert(dataIn.begin(), dataIn.end());
auto dataOut = std::vector<float>(4);
EXPECT_FALSE(buffer.read(dataOut.begin(), dataOut.end()));
EXPECT_EQ(3, buffer.size());
EXPECT_THAT(dataOut, ElementsAre(0.f, 0.f, 0.f, 0.f));
}
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