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Diffstat (limited to 'src/org/junit/rules/MethodRule.java')
-rw-r--r-- | src/org/junit/rules/MethodRule.java | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/org/junit/rules/MethodRule.java b/src/org/junit/rules/MethodRule.java new file mode 100644 index 0000000..5167672 --- /dev/null +++ b/src/org/junit/rules/MethodRule.java @@ -0,0 +1,40 @@ +package org.junit.rules; + +import org.junit.Rule; +import org.junit.runners.model.FrameworkMethod; +import org.junit.runners.model.Statement; + +/** + * A MethodRule is an alteration in how a test method is run and reported. + * Multiple {@link MethodRule}s can be applied to a test method. The + * {@link Statement} that executes the method is passed to each annotated + * {@link Rule} in turn, and each may return a substitute or modified + * {@link Statement}, which is passed to the next {@link Rule}, if any. For + * examples of how this can be useful, see these provided MethodRules, + * or write your own: + * + * <ul> + * <li>{@link ErrorCollector}: collect multiple errors in one test method</li> + * <li>{@link ExpectedException}: make flexible assertions about thrown exceptions</li> + * <li>{@link ExternalResource}: start and stop a server, for example</li> + * <li>{@link TemporaryFolder}: create fresh files, and delete after test</li> + * <li>{@link TestName}: remember the test name for use during the method</li> + * <li>{@link TestWatchman}: add logic at events during method execution</li> + * <li>{@link Timeout}: cause test to fail after a set time</li> + * <li>{@link Verifier}: fail test if object state ends up incorrect</li> + * </ul> + */ +@Deprecated +public interface MethodRule { + /** + * Modifies the method-running {@link Statement} to implement an additional + * test-running rule. + * + * @param base The {@link Statement} to be modified + * @param method The method to be run + * @param target The object on with the method will be run. + * @return a new statement, which may be the same as {@code base}, + * a wrapper around {@code base}, or a completely new Statement. + */ + Statement apply(Statement base, FrameworkMethod method, Object target); +}
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