add toPostfix function(in stackApp.cpp). Create Queue.h, and passed all tests.

thu_dsa/chp4/testQueue.cpp

@@ -0,0 +1,61 @@
+#include "Queue.h"
+#include <time.h>
+#include <cassert>
+#include <iostream>
+using std::cout;
+using std::endl;
+
+void test_constructor();
+void test_enqueue();
+void test_dequeue();
+
+int main(){
+	clock_t begin = clock();
+	cout << "Running tests." << endl;
+
+	test_constructor();
+	test_enqueue();
+	test_dequeue();
+
+	clock_t end = clock();
+	cout << "All tests passed." << "Running time: " << end - begin << "ticks." << endl;
+
+	system("pause");
+	return 0;
+}
+
+void test_constructor(){
+	Queue<int> q1;
+	Queue<char> q2;
+	Queue<double> q3;
+	Queue < Queue<int>> q4;
+	assert(q1.getSize() == 0);
+	assert(q2.getSize() == 0);
+	assert(q3.getSize() == 0);
+	assert(q4.getSize() == 0);
+}
+
+void test_enqueue(){
+	Queue<int> q;
+	q.enqueue(2);
+	assert(q.getSize() == 1);
+	q.enqueue(5);
+	assert(q.getSize() == 2);
+	assert(q.front() == 2);
+	assert(q.rear() == 5);
+}
+
+void test_dequeue(){
+	Queue<int> q;
+	q.enqueue(2);
+	q.enqueue(5);
+	q.enqueue(7);
+	assert(q.getSize() == 3);
+	assert(q.front() == 2);
+	assert(q.rear() == 7);
+
+	assert(q.dequeue() == 2);
+	assert(q.dequeue() == 5);
+	assert(q.dequeue() == 7);
+	assert(q.getSize() == 0);
+}