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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/locked-queue-inl.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
typedef int Record;
} // namespace
namespace v8 {
namespace internal {
TEST(LockedQueue, ConstructorEmpty) {
LockedQueue<Record> queue;
EXPECT_TRUE(queue.IsEmpty());
}
TEST(LockedQueue, SingleRecordEnqueueDequeue) {
LockedQueue<Record> queue;
EXPECT_TRUE(queue.IsEmpty());
queue.Enqueue(1);
EXPECT_FALSE(queue.IsEmpty());
Record a = -1;
bool success = queue.Dequeue(&a);
EXPECT_TRUE(success);
EXPECT_EQ(a, 1);
EXPECT_TRUE(queue.IsEmpty());
}
TEST(LockedQueue, Peek) {
LockedQueue<Record> queue;
EXPECT_TRUE(queue.IsEmpty());
queue.Enqueue(1);
EXPECT_FALSE(queue.IsEmpty());
Record a = -1;
bool success = queue.Peek(&a);
EXPECT_TRUE(success);
EXPECT_EQ(a, 1);
EXPECT_FALSE(queue.IsEmpty());
success = queue.Dequeue(&a);
EXPECT_TRUE(success);
EXPECT_EQ(a, 1);
EXPECT_TRUE(queue.IsEmpty());
}
TEST(LockedQueue, PeekOnEmpty) {
LockedQueue<Record> queue;
EXPECT_TRUE(queue.IsEmpty());
Record a = -1;
bool success = queue.Peek(&a);
EXPECT_FALSE(success);
}
TEST(LockedQueue, MultipleRecords) {
LockedQueue<Record> queue;
EXPECT_TRUE(queue.IsEmpty());
queue.Enqueue(1);
EXPECT_FALSE(queue.IsEmpty());
for (int i = 2; i <= 5; ++i) {
queue.Enqueue(i);
EXPECT_FALSE(queue.IsEmpty());
}
Record rec = 0;
for (int i = 1; i <= 4; ++i) {
EXPECT_FALSE(queue.IsEmpty());
queue.Dequeue(&rec);
EXPECT_EQ(i, rec);
}
for (int i = 6; i <= 12; ++i) {
queue.Enqueue(i);
EXPECT_FALSE(queue.IsEmpty());
}
for (int i = 5; i <= 12; ++i) {
EXPECT_FALSE(queue.IsEmpty());
queue.Dequeue(&rec);
EXPECT_EQ(i, rec);
}
EXPECT_TRUE(queue.IsEmpty());
}
} // namespace internal
} // namespace v8