powermockit 模拟java.lang.Runtime
时间: 2023-10-22 12:30:15 浏览: 160
使用PowerMockito可以模拟Java.lang.Runtime类,以下是一个使用PowerMockito模拟Java.lang.Runtime的示例:
```java
@RunWith(PowerMockRunner.class)
@PrepareForTest(Runtime.class)
public class RuntimeTest {
@Test
public void testExec() throws Exception {
// 模拟Runtime类
Runtime runtimeMock = PowerMockito.mock(Runtime.class);
// 设置Runtime类的exec方法的行为
Process processMock = PowerMockito.mock(Process.class);
PowerMockito.when(runtimeMock.exec("ls")).thenReturn(processMock);
// 执行被测试方法
MyClass myClass = new MyClass();
myClass.run();
// 验证执行了Runtime类的exec方法
PowerMockito.verifyStatic();
Runtime.getRuntime();
PowerMockito.verify(runtimeMock).exec("ls");
}
static class MyClass {
public void run() throws Exception {
Runtime runtime = Runtime.getRuntime();
runtime.exec("ls");
}
}
}
```
在该示例中,我们首先使用PowerMockito.mock()方法模拟了Java.lang.Runtime类,并使用PowerMockito.when()方法设置了Runtime.exec()方法的行为。然后,我们执行了被测试方法,并使用PowerMockito.verifyStatic()和PowerMockito.verify()方法验证了Runtime类的exec()方法是否被调用。
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