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package org.junit.experimental.results;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.junit.internal.matchers.TypeSafeMatcher;
/**
* Matchers on a PrintableResult, to enable JUnit self-tests.
* For example:
*
* <pre>
* assertThat(testResult(HasExpectedException.class), isSuccessful());
* </pre>
*/
public class ResultMatchers {
/**
* Matches if the tests are all successful
*/
public static Matcher<PrintableResult> isSuccessful() {
return failureCountIs(0);
}
/**
* Matches if there are {@code count} failures
*/
public static Matcher<PrintableResult> failureCountIs(final int count) {
return new TypeSafeMatcher<PrintableResult>() {
public void describeTo(Description description) {
description.appendText("has " + count + " failures");
}
@Override
public boolean matchesSafely(PrintableResult item) {
return item.failureCount() == count;
}
};
}
/**
* Matches if the result has exactly one failure, and it contains {@code string}
*/
public static Matcher<Object> hasSingleFailureContaining(final String string) {
return new BaseMatcher<Object>() {
public boolean matches(Object item) {
return item.toString().contains(string) && failureCountIs(1).matches(item);
}
public void describeTo(Description description) {
description.appendText("has single failure containing " + string);
}
};
}
/**
* Matches if the result has one or more failures, and at least one of them
* contains {@code string}
*/
public static Matcher<PrintableResult> hasFailureContaining(final String string) {
return new BaseMatcher<PrintableResult>() {
public boolean matches(Object item) {
return item.toString().contains(string);
}
public void describeTo(Description description) {
description.appendText("has failure containing " + string);
}
};
}
}
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