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[wpiutil] Improve wpi::circular_buffer iterators (#3410)

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The implementation of wpi::circular_buffer has been effectively replaced
with a dynamically sized copy of wpi::static_circular_buffer with a
resize() member function.
This commit is contained in:
Tyler Veness
2021-06-05 21:08:12 -07:00
committed by GitHub
parent 8aecda03ed
commit 82856cf816
8 changed files with 393 additions and 297 deletions
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60
wpiutil/src/test/native/cpp/CircularBufferTest.cpp
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@@ -25,7 +25,7 @@ TEST(CircularBufferTest, PushFrontTest) {
queue.push_front(value);
}
for (size_t i = 0; i < pushFrontOut.size(); i++) {
for (size_t i = 0; i < pushFrontOut.size(); ++i) {
EXPECT_EQ(pushFrontOut[i], queue[i]);
}
}
@@ -37,7 +37,31 @@ TEST(CircularBufferTest, PushBackTest) {
queue.push_back(value);
}
for (size_t i = 0; i < pushBackOut.size(); i++) {
for (size_t i = 0; i < pushBackOut.size(); ++i) {
EXPECT_EQ(pushBackOut[i], queue[i]);
}
}
TEST(CircularBufferTest, EmplaceFrontTest) {
wpi::circular_buffer<double> queue(8);
for (auto& value : values) {
queue.emplace_front(value);
}
for (size_t i = 0; i < pushFrontOut.size(); ++i) {
EXPECT_EQ(pushFrontOut[i], queue[i]);
}
}
TEST(CircularBufferTest, EmplaceBackTest) {
wpi::circular_buffer<double> queue(8);
for (auto& value : values) {
queue.emplace_back(value);
}
for (size_t i = 0; i < pushBackOut.size(); ++i) {
EXPECT_EQ(pushBackOut[i], queue[i]);
}
}
@@ -88,15 +112,13 @@ TEST(CircularBufferTest, PushPopTest) {
TEST(CircularBufferTest, ResetTest) {
wpi::circular_buffer<double> queue(5);
for (size_t i = 1; i < 6; i++) {
for (size_t i = 1; i < 6; ++i) {
queue.push_back(i);
}
queue.reset();
for (size_t i = 0; i < 5; i++) {
EXPECT_EQ(0.0, queue[i]);
}
EXPECT_EQ(queue.size(), size_t{0});
}
TEST(CircularBufferTest, ResizeTest) {
@@ -204,3 +226,29 @@ TEST(CircularBufferTest, ResizeTest) {
EXPECT_EQ(2.0, queue[2]);
EXPECT_EQ(3.0, queue[3]);
}
TEST(CircularBufferTest, IteratorTest) {
wpi::circular_buffer<double> queue(3);
queue.push_back(1.0);
queue.push_back(2.0);
queue.push_back(3.0);
queue.push_back(4.0); // Overwrite 1 with 4
// The buffer now contains 2, 3 and 4
const std::array<double, 3> values = {2.0, 3.0, 4.0};
// iterator
int i = 0;
for (auto& elem : queue) {
EXPECT_EQ(values[i], elem);
++i;
}
// const_iterator
i = 0;
for (const auto& elem : queue) {
EXPECT_EQ(values[i], elem);
++i;
}
}