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UsageVerifyTest.java
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UsageVerifyTest.java
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/*
* Copyright 2001-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.easymock.tests;
import org.easymock.internal.ReplayState;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import static org.easymock.EasyMock.*;
import static org.junit.Assert.*;
/**
* @author OFFIS, Tammo Freese
*/
public class UsageVerifyTest {
private IMethods mock;
@Before
public void setup() {
mock = createMock(IMethods.class);
}
@Test
public void twoReturns() {
expect(mock.throwsNothing(true)).andReturn("Test").andReturn("Test2");
replay(mock);
assertEquals("Test", mock.throwsNothing(true));
boolean failed = true;
try {
verify(mock);
failed = false;
} catch (AssertionError expected) {
assertEquals("\n Expectation failure on verify:"
+ "\n IMethods.throwsNothing(true): expected: 2, actual: 1", expected.getMessage());
assertEquals("stack trace must be filled in", Util.getStackTrace(expected).indexOf(
ReplayState.class.getName()), -1);
}
if (!failed)
fail("AssertionError expected");
assertEquals("Test2", mock.throwsNothing(true));
verify(mock);
try {
mock.throwsNothing(true);
fail("AssertionError expected");
} catch (AssertionError expected) {
assertEquals("\n Unexpected method call IMethods.throwsNothing(true):"
+ "\n IMethods.throwsNothing(true): expected: 2, actual: 3", expected.getMessage());
}
}
@Test
public void atLeastTwoReturns() {
expect(mock.throwsNothing(true)).andReturn("Test").andReturn("Test2").atLeastOnce();
replay(mock);
assertEquals("Test", mock.throwsNothing(true));
try {
verify(mock);
fail("AssertionError expected");
} catch (AssertionError expected) {
assertEquals("\n Expectation failure on verify:"
+ "\n IMethods.throwsNothing(true): expected: at least 2, actual: 1", expected
.getMessage());
}
assertEquals("Test2", mock.throwsNothing(true));
assertEquals("Test2", mock.throwsNothing(true));
verify(mock);
}
@Test
public void twoThrows() throws IOException {
expect(mock.throwsIOException(0)).andThrow(new IOException()).andThrow(new IOException());
expect(mock.throwsIOException(1)).andThrow(new IOException());
replay(mock);
try {
mock.throwsIOException(0);
fail("IOException expected");
} catch (IOException expected) {
}
try {
verify(mock);
fail("AssertionError expected");
} catch (AssertionError expected) {
assertEquals("\n Expectation failure on verify:"
+ "\n IMethods.throwsIOException(0 (int)): expected: 2, actual: 1"
+ "\n IMethods.throwsIOException(1 (int)): expected: 1, actual: 0", expected.getMessage());
}
try {
mock.throwsIOException(0);
fail("IOException expected");
} catch (IOException expected) {
}
try {
verify(mock);
fail("AssertionError expected");
} catch (AssertionError expected) {
assertEquals("\n Expectation failure on verify:"
+ "\n IMethods.throwsIOException(1 (int)): expected: 1, actual: 0", expected.getMessage());
}
try {
mock.throwsIOException(1);
fail("IOException expected");
} catch (IOException expected) {
}
verify(mock);
try {
mock.throwsIOException(0);
fail("AssertionError expected");
} catch (AssertionError expected) {
assertEquals("\n Unexpected method call IMethods.throwsIOException(0 (int)):"
+ "\n IMethods.throwsIOException(0 (int)): expected: 2, actual: 3", expected.getMessage());
}
}
@Test
public void manyMocks() {
IMethods otherMock = mock(IMethods.class);
expect(otherMock.oneArg(1)).andReturn("test");
replay(mock, otherMock);
try {
verify(mock, otherMock);
fail("Should fail on otherMock");
} catch (AssertionError e) {
assertEquals(AssertionError.class, e.getClass());
assertEquals("On mock #1 (zero indexed): \n Expectation failure on verify:\n IMethods.oneArg(1 (int)): expected: 1, actual: 0", e.getMessage());
}
}
@Test
public void callExtraMethodsCheckedInVerify() {
IMethods mock = mock(IMethods.class);
replay(mock);
try {
mock.simpleMethod();
} catch(AssertionError e) {
// eat the exception and so prevent the test from failing
}
try {
mock.oneArg(1);
} catch(AssertionError e) {
// eat the exception and so prevent the test from failing
}
// the verify should notice an assertion failed earlier
try {
verify(mock);
fail("Should find unexpected calls");
} catch(AssertionError e) {
assertEquals("\n Unexpected method calls:" +
"\n IMethods.simpleMethod()" +
"\n IMethods.oneArg(1 (int))", e.getMessage());
}
}
@Test
public void uncalledAndUnexpected() {
IMethods mock = mock(IMethods.class);
expect(mock.oneArg(1)).andReturn("test");
replay(mock);
try {
mock.simpleMethod();
} catch(AssertionError e) {
// eat the exception and so prevent the test from failing
}
// the verify should notice an assertion failed earlier
try {
verify(mock);
fail("Should find unexpected calls");
} catch(AssertionError e) {
assertEquals(
"\n Expectation failure on verify:" +
"\n IMethods.oneArg(1 (int)): expected: 1, actual: 0" +
"\n Unexpected method calls:" +
"\n IMethods.simpleMethod()", e.getMessage());
}
}
@Test
public void verifyRecordingTest() {
IMethods mock = mock(IMethods.class);
expect(mock.oneArg(1)).andReturn("test");
replay(mock);
try {
verifyRecording(mock);
fail("Should see unused expectations");
} catch(AssertionError e) {
assertEquals(
"\n Expectation failure on verify:" +
"\n IMethods.oneArg(1 (int)): expected: 1, actual: 0", e.getMessage());
}
}
@Test
public void verifyUnexpectedCallsTest() {
IMethods mock = mock(IMethods.class);
replay(mock);
try {
mock.simpleMethod();
} catch(AssertionError e) {
// eat the exception and so prevent the test from failing
}
// the verify should notice an assertion failed earlier
try {
verifyUnexpectedCalls(mock);
fail("Should find unexpected calls");
} catch(AssertionError e) {
assertEquals("\n Unexpected method calls:" +
"\n IMethods.simpleMethod()", e.getMessage());
}
}
}