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/*
 * Copyright 2015-2024 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
 *
 * https://www.eclipse.org/legal/epl-v20.html
 */

package org.junit.jupiter.params.provider;

import static org.apiguardian.api.API.Status.STABLE;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.apiguardian.api.API;

/**
 * {@code @EmptySource} is an {@link ArgumentsSource} which provides a single
 * empty argument to the annotated {@code @ParameterizedTest} method.
 *
 * 

Supported Parameter Types

* *

This argument source will only provide an empty argument for the following * method parameter types. * *

    *
  • {@link java.lang.String}
  • *
  • {@link java.util.Collection} and concrete subtypes with a public no-arg constructor
  • *
  • {@link java.util.List}
  • *
  • {@link java.util.Set}
  • *
  • {@link java.util.SortedSet}
  • *
  • {@link java.util.NavigableSet}
  • *
  • {@link java.util.Map} and concrete subtypes with a public no-arg constructor
  • *
  • {@link java.util.SortedMap}
  • *
  • {@link java.util.NavigableMap}
  • *
  • primitive arrays — for example {@code int[]}, {@code char[][]}, etc.
  • *
  • object arrays — for example {@code String[]}, {@code Integer[][]}, etc.
  • *
* * @since 5.4 * @see org.junit.jupiter.params.provider.ArgumentsSource * @see org.junit.jupiter.params.ParameterizedTest * @see NullSource * @see NullAndEmptySource */ @Target({ ElementType.ANNOTATION_TYPE, ElementType.METHOD }) @Retention(RetentionPolicy.RUNTIME) @Documented @API(status = STABLE, since = "5.7") @ArgumentsSource(EmptyArgumentsProvider.class) @SuppressWarnings("exports") public @interface EmptySource { }




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