英文:
Calling my method a specific amount of times
问题
在我的一个测试案例中，它检查了我调用mergeSort方法的次数，当大于或等于三次时，测试通过。但是在我的代码中，我使用相同的对象调用该方法三次，但我的测试案例显示我没有调用它。
我的代码：
import java.util.ArrayList;
public class SortTester {
public static void main(String[] args) {
int[] testArray;
long startTime, endTime;
int arraySize = 50000;
// 随机数组
int[] random = makeRandomArray(arraySize);
// 创建对象
Sorter obj = new Sorter();
// 记录开始时间
startTime = System.currentTimeMillis();
// 使用Merge Sort静态方法对数组进行排序
obj.mergeSort(random, arraySize);
// 记录结束时间
endTime = System.currentTimeMillis();
// 打印结果
System.out.println("随机数组: " + (endTime - startTime));
// 几乎有序数组
int[] sorted = makeAlmostSortedArray(arraySize);
// 与上面相同的步骤
startTime = System.currentTimeMillis();
obj.mergeSort(sorted, arraySize);
endTime = System.currentTimeMillis();
System.out.println("几乎有序数组: " + (endTime - startTime));
// 逆序数组
int[] reverse = makeReverseArray(arraySize);
// 与上面相同的步骤
startTime = System.currentTimeMillis();
obj.mergeSort(sorted, arraySize);
endTime = System.currentTimeMillis();
System.out.println("逆序数组: " + (endTime - startTime));
}
}
英文:
In one of my test cases, it checks the number of times that I call the mergeSort method and it passes when greater than or equal three. In my code, I call the that method three times with the same object yet my test case says I called it zero times.
My code:
import java.util.ArrayList;
public class SortTester {
public static void main(String[] args) {
int[] testArray;
long startTime, endTime;
int arraySize = 50000;
// Random Array
int[] random = makeRandomArray(arraySize);
// Make array
Sorter obj = new Sorter();
// Record start time
startTime = System.currentTimeMillis();
// Sort array using Merge Sort static method
obj.mergeSort(random, arraySize);
// Record end time
endTime = System.currentTimeMillis();
// Print out results
System.out.println("Random array: " + (endTime - startTime));
// Almost Sorted Array
int[] sorted = makeAlmostSortedArray(arraySize);
// Same steps as above
startTime = System.currentTimeMillis();
obj.mergeSort(sorted, arraySize);
endTime = System.currentTimeMillis();
System.out.println("Almost Sorted Array: " + (endTime - startTime));
// Reverse Array
int[] reverse = makeReverseArray(arraySize);
// Same steps as above
startTime = System.currentTimeMillis();
obj.mergeSort(sorted, arraySize);
endTime = System.currentTimeMillis();
System.out.println("Reverse Array: " + (endTime - startTime));
}
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