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Introduce support for ordering the sequence of test methods
These commits introduce new support in JUnit Jupiter for ordering the sequence of test methods. Specifically, these commits introduce a new MethodOrderer API that can be registered via a new @TestMethodOrder annotation. JUnit Jupiter provides the following built-in implementations of this new API. - Alphanumeric: sorts test methods alphanumerically based on their names and formal parameter lists. - OrderAnnotation: sorts test methods numerically based on values specified via the @order annotation. - Random: orders test methods pseudo-randomly and supports configuration of a custom seed. Consult the new "Test Execution Order" section of the User Guide for details and example usage. Issue: #13
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Copyright 2015-2018 the original author or authors. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials are | ||
| * made available under the terms of the Eclipse Public License v2.0 which | ||
| * accompanies this distribution and is available at | ||
| * | ||
| * http://www.eclipse.org/legal/epl-v20.html | ||
| */ | ||
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| package example; | ||
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| // tag::user_guide[] | ||
| import org.junit.jupiter.api.MethodOrderer.OrderAnnotation; | ||
| import org.junit.jupiter.api.Order; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.api.TestMethodOrder; | ||
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| @TestMethodOrder(OrderAnnotation.class) | ||
| class OrderedTestsDemo { | ||
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| @Test | ||
| @Order(1) | ||
| void nullValues() { | ||
| } | ||
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| @Test | ||
| @Order(2) | ||
| void emptyValues() { | ||
| } | ||
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| @Test | ||
| @Order(3) | ||
| void validValues() { | ||
| } | ||
| } | ||
| // end::user_guide[] |
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junit-jupiter-api/src/main/java/org/junit/jupiter/api/MethodDescriptor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * Copyright 2015-2018 the original author or authors. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials are | ||
| * made available under the terms of the Eclipse Public License v2.0 which | ||
| * accompanies this distribution and is available at | ||
| * | ||
| * http://www.eclipse.org/legal/epl-v20.html | ||
| */ | ||
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| package org.junit.jupiter.api; | ||
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| import static org.apiguardian.api.API.Status.EXPERIMENTAL; | ||
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| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.Method; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
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| import org.apiguardian.api.API; | ||
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| /** | ||
| * {@link MethodDescriptor} encapsulates functionality for a given {@link Method}. | ||
| * | ||
| * @since 5.4 | ||
| * @see MethodOrdererContext | ||
| */ | ||
| @API(status = EXPERIMENTAL, since = "5.4") | ||
| public interface MethodDescriptor { | ||
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| /** | ||
| * Get the method for this descriptor. | ||
| * | ||
| * @return the method; never {@code null} | ||
| */ | ||
| Method getMethod(); | ||
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| /** | ||
| * Determine if an annotation of {@code annotationType} is either | ||
| * <em>present</em> or <em>meta-present</em> on the {@link Method} for | ||
| * this descriptor. | ||
| * | ||
| * @param annotationType the annotation type to search for; never {@code null} | ||
| * @return {@code true} if the annotation is present or meta-present | ||
| * @see #findAnnotation(Class) | ||
| * @see #findRepeatableAnnotations(Class) | ||
| */ | ||
| boolean isAnnotated(Class<? extends Annotation> annotationType); | ||
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| /** | ||
| * Find the first annotation of {@code annotationType} that is either | ||
| * <em>present</em> or <em>meta-present</em> on the {@link Method} for | ||
| * this descriptor. | ||
| * | ||
| * @param <A> the annotation type | ||
| * @param annotationType the annotation type to search for; never {@code null} | ||
| * @return an {@code Optional} containing the annotation; never {@code null} but | ||
| * potentially empty | ||
| * @see #isAnnotated(Class) | ||
| * @see #findRepeatableAnnotations(Class) | ||
| */ | ||
| <A extends Annotation> Optional<A> findAnnotation(Class<A> annotationType); | ||
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| /** | ||
| * Find all <em>repeatable</em> {@linkplain Annotation annotations} of | ||
| * {@code annotationType} that are either <em>present</em> or | ||
| * <em>meta-present</em> on the {@link Method} for this descriptor. | ||
| * | ||
| * @param <A> the annotation type | ||
| * @param annotationType the repeatable annotation type to search for; never | ||
| * {@code null} | ||
| * @return the list of all such annotations found; neither {@code null} nor | ||
| * mutable, but potentially empty | ||
| * @see #isAnnotated(Class) | ||
| * @see #findAnnotation(Class) | ||
| * @see java.lang.annotation.Repeatable | ||
| */ | ||
| <A extends Annotation> List<A> findRepeatableAnnotations(Class<A> annotationType); | ||
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| } |
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