[英]How can I mock an instance of an enum class with PowerMock & Mockito?
我試圖按照這個非常相似的問題的答案中提供的示例進行操作,但它對我不起作用。 我收到以下錯誤消息:
java.lang.IllegalArgumentException: Cannot subclass final class class com.myproject.test.support.ExampleEnumerable
at org.mockito.cglib.proxy.Enhancer.generateClass(Enhancer.java:447)
at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217)
at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378)
at org.mockito.cglib.proxy.Enhancer.createClass(Enhancer.java:318)
at org.powermock.api.mockito.repackaged.ClassImposterizer.createProxyClass(ClassImposterizer.java:123)
at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:57)
at org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:110)
at org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:58)
at org.powermock.api.mockito.PowerMockito.mock(PowerMockito.java:143)
我需要一個enum class
的簡單模擬實例。 我不需要嘲笑它的任何方法。
這是我想要模擬的課程:
public enum ExampleEnumerable implements IEnumerable<ExampleEnumerable> {
EXAMPLE_ENUM_1("Test Enum 1"),
EXAMPLE_ENUM_2("Test Enum 2");
final String alias;
ExampleEnumerable(final String alias) {
this.alias = alias;
}
@SuppressWarnings({"VariableArgumentMethod", "unchecked"})
@Override
public @Nullable
String getAlias(final @Nonnull IEnumerable<? extends Enum<?>>... context) {
return alias;
}
}
我有以下 TestNG 設置:
import static org.powermock.api.mockito.PowerMockito.mock;
@PrepareForTest({ ExampleEnumerable.class})
@Test(groups = {"LoadableBuilderTestGroup"})
public class LoadableBuilderTest {
private ExampleEnumerable mockEnumerable;
@BeforeMethod
public void setUp() {
mockEnumerable = mock(ExampleEnumerable.class);
}
}
您需要使用 PowerMockRunner 運行它
例如。
@RunWith(PowerMockRunner.class)
@PrepareForTest({ ExampleEnumerable.class})
@Test(groups = {"LoadableBuilderTestGroup"})
public class LoadableBuilderTest {
private ExampleEnumerable mockEnumerable;
@BeforeMethod
public void setUp() {
mockEnumerable = mock(ExampleEnumerable.class);
}
}
我通過擴展為 TestNG 處理此類事情的 PowerMockTestCase 類來實現此目的:
@PrepareForTest(TestEnumerable.class)
@Test(groups = {"LoadableBuilderTestGroup"})
public class LoadableBuilderTest extends PowerMockTestCase {
private TestEnumerable mockEnumerable;
@SuppressWarnings("unchecked")
@BeforeMethod
public void setUp() {
mockEnumerable = PowerMockito.mock(TestEnumerable.class);
}
}
嗨,伙計們,對我來說,工作如下:
首先在 pom.xml 上添加 power mockito:
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>2.0.4</version>
<scope>test</scope>
</dependency>
然后在我的課上:
@RunWith(PowerMockRunner.class)
@PrepareForTest({EnumClass.class})
public class EnumClassTest{
private EnumClassTest enumClassTest;
@Before
public void setUp() {
enumClassTest = mock(EnumClassTest.class);
}
@Test
public void someMethod() {
//My code test here
}
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