76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsTPriorityQueue.h"
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "gtest/gtest.h"
|
|
|
|
template<class T, class Compare>
|
|
void
|
|
CheckPopSequence(const nsTPriorityQueue<T, Compare>& aQueue,
|
|
const T* aExpectedSequence, const uint32_t aSequenceLength)
|
|
{
|
|
nsTPriorityQueue<T, Compare> copy(aQueue);
|
|
|
|
for (uint32_t i = 0; i < aSequenceLength; i++) {
|
|
EXPECT_FALSE(copy.IsEmpty());
|
|
|
|
T pop = copy.Pop();
|
|
EXPECT_EQ(pop, aExpectedSequence[i]);
|
|
}
|
|
|
|
EXPECT_TRUE(copy.IsEmpty());
|
|
}
|
|
|
|
template<class A>
|
|
class MaxCompare {
|
|
public:
|
|
bool LessThan(const A& a, const A& b) {
|
|
return a > b;
|
|
}
|
|
};
|
|
|
|
TEST(PriorityQueue, Main)
|
|
{
|
|
nsTPriorityQueue<int> queue;
|
|
|
|
EXPECT_TRUE(queue.IsEmpty());
|
|
|
|
queue.Push(8);
|
|
queue.Push(6);
|
|
queue.Push(4);
|
|
queue.Push(2);
|
|
queue.Push(10);
|
|
queue.Push(6);
|
|
EXPECT_EQ(queue.Top(), 2);
|
|
EXPECT_EQ(queue.Length(), 6u);
|
|
EXPECT_FALSE(queue.IsEmpty());
|
|
int expected[] = { 2, 4, 6, 6, 8, 10 };
|
|
CheckPopSequence(queue, expected, sizeof(expected) / sizeof(expected[0]));
|
|
|
|
// copy ctor is tested by using CheckPopSequence, but check default assignment
|
|
// operator
|
|
nsTPriorityQueue<int> queue2;
|
|
queue2 = queue;
|
|
CheckPopSequence(queue2, expected, sizeof(expected) / sizeof(expected[0]));
|
|
|
|
queue.Clear();
|
|
EXPECT_TRUE(queue.IsEmpty());
|
|
|
|
// try same sequence with a max heap
|
|
nsTPriorityQueue<int, MaxCompare<int> > max_queue;
|
|
max_queue.Push(8);
|
|
max_queue.Push(6);
|
|
max_queue.Push(4);
|
|
max_queue.Push(2);
|
|
max_queue.Push(10);
|
|
max_queue.Push(6);
|
|
EXPECT_EQ(max_queue.Top(), 10);
|
|
int expected_max[] = { 10, 8, 6, 6, 4, 2 };
|
|
CheckPopSequence(max_queue, expected_max,
|
|
sizeof(expected_max) / sizeof(expected_max[0]));
|
|
}
|