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Implemented CircularBuffer resizing (#224)

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This commit is contained in:
Tyler Veness
2016-09-20 19:43:34 -07:00
committed by Peter Johnson
parent 425ed464ed
commit ac9b6f7b18
5 changed files with 314 additions and 3 deletions
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120
wpilibcIntegrationTests/src/CircularBufferTest.cpp
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@@ -87,3 +87,123 @@ TEST(CircularBufferTest, PushPopTest) {
// Leaving only one element with value == 4
EXPECT_EQ(4.0, queue[0]);
}
TEST(CircularBufferTest, ResetTest) {
CircularBuffer<double> queue(5);
for (size_t i = 1; i < 6; i++) {
queue.PushBack(i);
}
queue.Reset();
for (size_t i = 0; i < 5; i++) {
EXPECT_EQ(0.0, queue[i]);
}
}
TEST(CircularBufferTest, ResizeTest) {
CircularBuffer<double> queue(5);
/* Buffer contains {1, 2, 3, _, _}
* ^ front
*/
queue.PushBack(1.0);
queue.PushBack(2.0);
queue.PushBack(3.0);
queue.Resize(2);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Resize(5);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Reset();
/* Buffer contains {_, 1, 2, 3, _}
* ^ front
*/
queue.PushBack(0.0);
queue.PushBack(1.0);
queue.PushBack(2.0);
queue.PushBack(3.0);
queue.PopFront();
queue.Resize(2);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Resize(5);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Reset();
/* Buffer contains {_, _, 1, 2, 3}
* ^ front
*/
queue.PushBack(0.0);
queue.PushBack(0.0);
queue.PushBack(1.0);
queue.PushBack(2.0);
queue.PushBack(3.0);
queue.PopFront();
queue.PopFront();
queue.Resize(2);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Resize(5);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Reset();
/* Buffer contains {3, _, _, 1, 2}
* ^ front
*/
queue.PushBack(3.0);
queue.PushFront(2.0);
queue.PushFront(1.0);
queue.Resize(2);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Resize(5);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Reset();
/* Buffer contains {2, 3, _, _, 1}
* ^ front
*/
queue.PushBack(2.0);
queue.PushBack(3.0);
queue.PushFront(1.0);
queue.Resize(2);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
queue.Resize(5);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
// Test PushBack() after resize
queue.PushBack(3.0);
EXPECT_EQ(1.0, queue[0]);
EXPECT_EQ(2.0, queue[1]);
EXPECT_EQ(3.0, queue[2]);
// Test PushFront() after resize
queue.PushFront(4.0);
EXPECT_EQ(4.0, queue[0]);
EXPECT_EQ(1.0, queue[1]);
EXPECT_EQ(2.0, queue[2]);
EXPECT_EQ(3.0, queue[3]);
}