1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/locked-queue-inl.h" 6 #include "testing/gtest/include/gtest/gtest.h" 7 8 namespace { 9 10 typedef int Record; 11 12 } // namespace 13 14 namespace v8 { 15 namespace internal { 16 17 TEST(LockedQueue, ConstructorEmpty) { 18 LockedQueue<Record> queue; 19 EXPECT_TRUE(queue.IsEmpty()); 20 } 21 22 23 TEST(LockedQueue, SingleRecordEnqueueDequeue) { 24 LockedQueue<Record> queue; 25 EXPECT_TRUE(queue.IsEmpty()); 26 queue.Enqueue(1); 27 EXPECT_FALSE(queue.IsEmpty()); 28 Record a = -1; 29 bool success = queue.Dequeue(&a); 30 EXPECT_TRUE(success); 31 EXPECT_EQ(a, 1); 32 EXPECT_TRUE(queue.IsEmpty()); 33 } 34 35 36 TEST(LockedQueue, Peek) { 37 LockedQueue<Record> queue; 38 EXPECT_TRUE(queue.IsEmpty()); 39 queue.Enqueue(1); 40 EXPECT_FALSE(queue.IsEmpty()); 41 Record a = -1; 42 bool success = queue.Peek(&a); 43 EXPECT_TRUE(success); 44 EXPECT_EQ(a, 1); 45 EXPECT_FALSE(queue.IsEmpty()); 46 success = queue.Dequeue(&a); 47 EXPECT_TRUE(success); 48 EXPECT_EQ(a, 1); 49 EXPECT_TRUE(queue.IsEmpty()); 50 } 51 52 53 TEST(LockedQueue, PeekOnEmpty) { 54 LockedQueue<Record> queue; 55 EXPECT_TRUE(queue.IsEmpty()); 56 Record a = -1; 57 bool success = queue.Peek(&a); 58 EXPECT_FALSE(success); 59 } 60 61 62 TEST(LockedQueue, MultipleRecords) { 63 LockedQueue<Record> queue; 64 EXPECT_TRUE(queue.IsEmpty()); 65 queue.Enqueue(1); 66 EXPECT_FALSE(queue.IsEmpty()); 67 for (int i = 2; i <= 5; ++i) { 68 queue.Enqueue(i); 69 EXPECT_FALSE(queue.IsEmpty()); 70 } 71 Record rec = 0; 72 for (int i = 1; i <= 4; ++i) { 73 EXPECT_FALSE(queue.IsEmpty()); 74 queue.Dequeue(&rec); 75 EXPECT_EQ(i, rec); 76 } 77 for (int i = 6; i <= 12; ++i) { 78 queue.Enqueue(i); 79 EXPECT_FALSE(queue.IsEmpty()); 80 } 81 for (int i = 5; i <= 12; ++i) { 82 EXPECT_FALSE(queue.IsEmpty()); 83 queue.Dequeue(&rec); 84 EXPECT_EQ(i, rec); 85 } 86 EXPECT_TRUE(queue.IsEmpty()); 87 } 88 89 } // namespace internal 90 } // namespace v8 91
