How to use doThrowShouldNotAllowSettingNullVarArgThrowableClasses method of org.mockitousage.stubbing.StubbingWithThrowablesTest class

Best Mockito code snippet using org.mockitousage.stubbing.StubbingWithThrowablesTest.doThrowShouldNotAllowSettingNullVarArgThrowableClasses

Source:StubbingWithThrowablesTest.java Github

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...168 exception.expectMessage("Exception type cannot be null");169 Mockito.doThrow(RuntimeException.class, ((Class) (null))).when(mock).isEmpty();170 }171 @Test172 public void doThrowShouldNotAllowSettingNullVarArgThrowableClasses() throws Exception {173 exception.expect(MockitoException.class);174 exception.expectMessage("Exception type cannot be null");175 Mockito.doThrow(RuntimeException.class, ((Class[]) (null))).when(mock).isEmpty();176 }177 @Test178 public void shouldNotAllowSettingNullVarArgsThrowableClasses() throws Exception {179 exception.expect(MockitoException.class);180 exception.expectMessage("Exception type cannot be null");181 Mockito.when(mock.isEmpty()).thenThrow(RuntimeException.class, ((Class<RuntimeException>[]) (null)));182 }183 @Test184 public void shouldNotAllowDifferntCheckedException() throws Exception {185 IMethods mock = Mockito.mock(IMethods.class);186 exception.expect(MockitoException.class);...

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doThrowShouldNotAllowSettingNullVarArgThrowableClasses

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1package org.mockitousage.stubbing;2import org.junit.Test;3import org.mockito.Mock;4import org.mockito.exceptions.misusing.InvalidUseOfMatchersException;5import org.mockitousage.IMethods;6import org.mockitoutil.TestBase;7import static org.junit.Assert.fail;8import static org.mockito.Mockito.doThrow;9import static org.mockito.Mockito.mock;10public class StubbingWithThrowablesTest extends TestBase {11 @Mock private IMethods mock;12 public void shouldAllowSettingNullThrowableClasses() {13 doThrow((Class<? extends Throwable>[]) null).when(mock).oneArg(true);14 }15 public void shouldAllowSettingNullVarArgThrowableClasses() {16 doThrowShouldNotAllowSettingNullVarArgThrowableClasses();17 }18 public void shouldAllowSettingNullThrowable() {19 doThrow((Throwable) null).when(mock).oneArg(true);20 }21 public void shouldAllowSettingNullThrowableArray() {22 doThrow((Throwable[]) null).when(mock).oneArg(true);23 }24 public void shouldAllowSettingNullVarArgThrowables() {25 doThrow((Throwable) null, (Throwable) null).when(mock).oneArg(true);26 }27 public void shouldAllowSettingNullVarArgThrowables2() {28 doThrow((Throwable[]) null).when(mock).oneArg(true);29 }30 public void shouldAllowSettingNullVarArgThrowables3() {31 doThrow((Throwable[]) null).when(mock).oneArg(true);32 }33 public void shouldAllowSettingNullVarArgThrowables4() {34 doThrow((Throwable) null, (Throwable) null).when(mock).oneArg(true);35 }36 public void shouldAllowSettingNullVarArgThrowables5() {37 doThrow((Throwable) null, (Throwable) null).when(mock).oneArg(true);38 }39 public void shouldAllowSettingNullVarArgThrowables6() {40 doThrow((Throwable) null, (Throwable) null).when(mock).oneArg(true);41 }42 public void shouldAllowSettingNullVarArgThrowables7() {43 doThrow((Throwable) null, (Throwable) null).when(mock).oneArg(true);44 }

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doThrowShouldNotAllowSettingNullVarArgThrowableClasses

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1public class StubbingWithThrowablesTest {2 public void doThrowShouldNotAllowSettingNullVarArgThrowableClasses() {3 try {4 doThrow((Class<? extends Throwable>[]) null);5 fail();6 } catch (NullPointerException e) {7 }8 }9}

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doThrowShouldNotAllowSettingNullVarArgThrowableClasses

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1import org.mockito.*2import org.mockito.exceptions.base.MockitoException3import spock.lang.Specification4class StubbingWithThrowablesTest extends Specification {5 def "should not allow setting null var arg Throwable classes"() {6 def mock = mock(List)7 mock.addAll(null)8 def e = thrown(MockitoException)9 }10 def "should not allow setting null var arg Throwable classes"() {11 def mock = mock(List)12 mock.addAll(null)13 def e = thrown(MockitoException)14 }15}

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doThrowShouldNotAllowSettingNullVarArgThrowableClasses

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1package org.mockitousage.stubbing;2import static org.mockito.Mockito.*;3import static org.junit.Assert.*;4import org.junit.*;5import org.mockito.*;6import org.mockito.exceptions.base.MockitoException;7import org.mockito.exceptions.misusing.InvalidUseOfMatchersException;8import org.mockito.exceptions.misusing.NullInsteadOfMockException;9import org.mockito.exceptions.misusing.UnfinishedStubbingException;10import org.mockitousage.IMethods;11import org.mockitoutil.TestBase;12import org.mockito.exceptions.misusing.InvalidUseOfMatchersException;13public class StubbingWithThrowablesTest extends TestBase {14 private IMethods mock;15 public void setup() {16 mock = mock(IMethods.class);17 }18 public void shouldAllowSettingNullThrowable() {19 doThrow((Throwable) null).when(mock).simpleMethod();20 mock.simpleMethod();21 }22 public void shouldAllowSettingNullVarArgThrowableClasses() {23 doThrow((Class<? extends Throwable>[]) null).when(mock).simpleMethod();24 mock.simpleMethod();25 }26 public void shouldAllowSettingNullVarArgThrowables() {27 doThrow((Throwable[]) null).when(mock).simpleMethod();28 mock.simpleMethod();29 }30 public void shouldAllowSettingNullThrowableClasses() {31 doThrow((Class<? extends Throwable>) null).when(mock).simpleMethod();32 mock.simpleMethod();33 }34 public void shouldAllowSettingNullThrowableClassesInVarargs() {35 doThrow(new Class[] { NullPointerException.class, null }).when(mock).simpleMethod();36 mock.simpleMethod();37 }38 public void shouldAllowSettingNullThrowablesInVarargs() {39 doThrow(new Throwable[] { new NullPointerException(), null }).when(mock).simpleMethod();40 mock.simpleMethod();41 }42 @Test(expected = InvalidUseOfMatchersException.class)43 public void shouldDisallowMatchersInVarargs() {44 doThrow(new Class[] { NullPointerException.class, anyInt() }).when(mock).simpleMethod();45 }46 @Test(expected =

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I've needed this several times as well. I've put together a small sample below, which you'd want to adjust to your needs. Basically, you create your own Appender and add it to the logger you want. If you'd want to collect everything, the root logger is a good place to start, but you can use a more specific if you'd like. Don't forget to remove the Appender when you're done, otherwise you might create a memory leak. Below I've done it within the test, but setUp or @Before and tearDown or @After might be better places, depending on your needs.

Also, the implementation below collects everything in a List in memory. If you're logging a lot you might consider adding a filter to drop boring entries, or to write the log to a temporary file on disk (Hint: LoggingEvent is Serializable, so you should be able to just serialize the event objects, if your log message is.)

import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.spi.LoggingEvent;
import org.junit.Test;

import java.util.ArrayList;
import java.util.List;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class MyTest {
    @Test
    public void test() {
        final TestAppender appender = new TestAppender();
        final Logger logger = Logger.getRootLogger();
        logger.addAppender(appender);
        try {
            Logger.getLogger(MyTest.class).info("Test");
        }
        finally {
            logger.removeAppender(appender);
        }

        final List<LoggingEvent> log = appender.getLog();
        final LoggingEvent firstLogEntry = log.get(0);
        assertThat(firstLogEntry.getLevel(), is(Level.INFO));
        assertThat((String) firstLogEntry.getMessage(), is("Test"));
        assertThat(firstLogEntry.getLoggerName(), is("MyTest"));
    }
}

class TestAppender extends AppenderSkeleton {
    private final List<LoggingEvent> log = new ArrayList<LoggingEvent>();

    @Override
    public boolean requiresLayout() {
        return false;
    }

    @Override
    protected void append(final LoggingEvent loggingEvent) {
        log.add(loggingEvent);
    }

    @Override
    public void close() {
    }

    public List<LoggingEvent> getLog() {
        return new ArrayList<LoggingEvent>(log);
    }
}
https://stackoverflow.com/questions/1827677/how-to-do-a-junit-assert-on-a-message-in-a-logger

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