[英]mock methods with EasyMock
我嘗試使用以下方法創建單元測試,但我找不到模擬每個方法內部調用的解決方案,請您幫我使用 EasyMock 為這些方法創建 Junit 測試:
private static final WebServiceCache<JWebService> SERVICE = new WebServiceCache<>();
public int getCount() {
int res = -1;
try {
String count = SERVICE.invokeSecurelly(new WS<String>() {
@Override
public String execute() throws Exception {
return getWS().getList();
}
});
res = Integer.parseInt(count);
} catch (Exception e) {
LOGGER.error("Count Exception" + e);
}
return res;
}
public int getKeyNumber() {
int res = -1;
try {
String keyId = SERVICE.invokeSecurelly(new WS<String>() {
@Override
public String execute() throws Exception {
return getWS().getID();
}
});
res = Integer.parseInt(keyId);
} catch (Exception e) {
LOGGER.error("getKeyNumBer returns an error" + e);
}
return res;
}
提前致謝
為了做一些干凈的事情,您需要進行一些重構以使其可測試。 這就是我最終會得到的......猜測你的例子中缺少的核心的一部分。
public class MyClass {
private static final Logger LOGGER = Logger.getLogger(MyClass.class.getName());
private final WebServiceCache<JWebService> service;
public MyClass(WebServiceCache<JWebService> service) {
this.service = service;
}
private int getValue(Supplier<String> invoked) {
try {
String count = service.invokeSecurelly(invoked::get);
return Integer.parseInt(count);
} catch (Exception e) {
LOGGER.error("Count Exception", e);
}
return -1;
}
public int getCount() {
return getValue(() -> getWS().getList());
}
public int getKeyNumber() {
return getValue(() -> getWS().getID());
}
private Stuff getWS() { // guessing where getWS() is
return null;
}
}
從那里開始,如果我們假設您要模擬的是getWS()
,它看起來像這樣。
import org.easymock.EasyMockSupport;
import org.junit.Before;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.easymock.EasyMock.expect;
public class MyClassTest extends EasyMockSupport {
private WebServiceCache<JWebService> cache = new WebServiceCache<>();
private MyClass tested = partialMockBuilder(MyClass.class)
.addMockedMethod("getWS")
.withConstructor(cache)
.mock();
private Stuff stuff = mock(Stuff.class);
@Before
public void before() {
expect(tested.getWS()).andStubReturn(stuff);
}
@Test
public void getCount() {
expect(stuff.getList()).andStubReturn("8");
replayAll();
assertThat(tested.getCount()).isEqualTo(8);
}
@Test
public void getKeyNumber() {
expect(stuff.getID()).andStubReturn("8");
replayAll();
assertThat(tested.getKeyNumber()).isEqualTo(8);
}
}
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