TEST(CircularBuffer, PrintBoundary)
{
MockPrinter mock;
fillTheQueue(200, buffer->Capacity());
removeFromQueue(buffer->Capacity() - 2);
buffer->Put(888);
fillTheQueue(300, buffer->Capacity() - 1);
buffer->Print(&mock);
// const char* expected = "Circular buffer content:\n"
// "<888, 300, 301, 302, 303>\n";
// CHECK_EQUAL(expected, mock.getOutput());
}
TEST(CircularBuffer, EmptyToFullToEmpty)
{
fillTheQueue(100, buffer->Capacity());
CHECK(buffer->IsFull());
removeFromQueue(buffer->Capacity());
CHECK(buffer->IsEmpty());
}
TEST(CircularBuffer, FillEmptyThenPrint)
{
MockPrinter mock;
fillTheQueue(200, buffer->Capacity());
removeFromQueue(buffer->Capacity());
buffer->Print(&mock);
// const char* expected = "Circular buffer content:\n"
// "<>\n";
// CHECK_EQUAL(expected, mock.getOutput());
}
TEST(CircularBuffer, PrintNotYetWrappedAndIsFull)
{
MockPrinter mock;
fillTheQueue(200, buffer->Capacity());
buffer->Print(&mock);
// const char* expected = "Circular buffer content:\n"
// "<200, 201, 202, 203, 204>\n";
// CHECK_EQUAL(expected, mock.getOutput());
}
TEST(CircularBuffer, PutToFull)
{
int capacity = buffer->Capacity();
fillTheQueue(900, capacity);
buffer->Put(9999);
for (int i = 0; i < buffer->Capacity() - 1; i++)
LONGS_EQUAL(i+900+1, buffer->Get());
LONGS_EQUAL(9999, buffer->Get());
CHECK(buffer->IsEmpty());
}
TEST(CircularBuffer, PrintWrappedAndFullOverwriteOldest)
{
MockPrinter mock;
fillTheQueue(200, buffer->Capacity());
buffer->Put(9999);
buffer->Print(&mock);
// const char* expected = "Circular buffer content:\n"
// "<201, 202, 203, 204, 9999>\n";
// CHECK_EQUAL(expected, mock.getOutput());
}
TEST(CircularBuffer, WrapAround)
{
fillTheQueue(100, buffer->Capacity());
CHECK(buffer->IsFull());
LONGS_EQUAL(100, buffer->Get());
CHECK(!buffer->IsFull());
buffer->Put(1000);
CHECK(buffer->IsFull());
removeFromQueue(buffer->Capacity() - 1);
LONGS_EQUAL(1000, buffer->Get());
CHECK(buffer->IsEmpty());
}
TEST(CircularBuffer, PrintWrappedAndIsFullOldestToNewest)
{
MockPrinter mock;
fillTheQueue(200, buffer->Capacity());
buffer->Get();
buffer->Put(999);
buffer->Print(&mock);
char* expected =
"Circular buffer content:\n"
"<201, 202, 203, 204, 999>\n";
CHECK_EQUAL(expected, mock.getOutput());
}
TEST(CircularBuffer, IsFull)
{
fillTheQueue(0, buffer->Capacity());
CHECK(buffer->IsFull());
}