MultipleExceptionTest.java

package org.test4j.tools.exception;

import java.util.Iterator;

import org.junit.Test;
import org.test4j.junit.Test4J;
import org.test4j.junit.annotations.DataFrom;

@SuppressWarnings("rawtypes")
public class MultipleExceptionTest extends Test4J {

    @Test
    @DataFrom("dataGetMultipleException")
    public void testGetMultipleException(Throwable[] errors, boolean isNull) {
        MultipleException exception = MultipleException.getMultipleException(errors);
        want.bool(exception == null).is(isNull);
    }

    public static Iterator dataGetMultipleException() {
        final Exception caused = new RuntimeException();
        return new DataIterator() {
            {
                data(new Throwable[] {}, true);
                data(new Throwable[] { null }, true);
                data(new Throwable[] { null, null, null, null }, true);
                data(new Throwable[] { caused }, false);
                data(new Throwable[] { caused, null, null, null }, false);
                data(new Throwable[] { null, caused, null, null }, false);
                data(new Throwable[] { null, null, null, caused }, false);
            }
        };
    }

    @Test
    public void testGetMultipleException() {
        final Exception err1 = new RuntimeException("my error1");
        final Exception err2 = new RuntimeException("my error2");
        final Exception err3 = new RuntimeException("my error3");
        MultipleException exception = MultipleException.getMultipleException(new Throwable[] { err1, err2, err3 });
        want.string(exception.getMessage()).containsInOrder("my error1", "my error2", "my error3");
    }
}