1 package org.junit.experimental.results; 2 3 import org.hamcrest.BaseMatcher; 4 import org.hamcrest.Description; 5 import org.hamcrest.Matcher; 6 import org.junit.internal.matchers.TypeSafeMatcher; 7 8 /** 9 * Matchers on a PrintableResult, to enable JUnit self-tests. 10 * For example: 11 * 12 * <pre> 13 * assertThat(testResult(HasExpectedException.class), isSuccessful()); 14 * </pre> 15 */ 16 public class ResultMatchers { 17 /** 18 * Matches if the tests are all successful 19 */ 20 public static Matcher<PrintableResult> isSuccessful() { 21 return failureCountIs(0); 22 } 23 24 /** 25 * Matches if there are {@code count} failures 26 */ 27 public static Matcher<PrintableResult> failureCountIs(final int count) { 28 return new TypeSafeMatcher<PrintableResult>() { 29 public void describeTo(Description description) { 30 description.appendText("has " + count + " failures"); 31 } 32 33 @Override 34 public boolean matchesSafely(PrintableResult item) { 35 return item.failureCount() == count; 36 } 37 }; 38 } 39 40 /** 41 * Matches if the result has exactly one failure, and it contains {@code string} 42 */ 43 public static Matcher<Object> hasSingleFailureContaining(final String string) { 44 return new BaseMatcher<Object>() { 45 public boolean matches(Object item) { 46 return item.toString().contains(string) && failureCountIs(1).matches(item); 47 } 48 49 public void describeTo(Description description) { 50 description.appendText("has single failure containing " + string); 51 } 52 }; 53 } 54 55 /** 56 * Matches if the result has one or more failures, and at least one of them 57 * contains {@code string} 58 */ 59 public static Matcher<PrintableResult> hasFailureContaining(final String string) { 60 return new BaseMatcher<PrintableResult>() { 61 public boolean matches(Object item) { 62 return item.toString().contains(string); 63 } 64 65 public void describeTo(Description description) { 66 description.appendText("has failure containing " + string); 67 } 68 }; 69 } 70 } 71
