/*
 * #%L
 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2017 Board of Regents of the University of
 * Wisconsin-Madison, Broad Institute of MIT and Harvard, Max Planck
 * Institute of Molecular Cell Biology and Genetics, University of
 * Konstanz, and KNIME GmbH.
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 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
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 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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package org.scijava.plugin;

import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import org.junit.Test;
import org.scijava.Context;

/**
 * Tests {@link PluginFinder}.
 * 
 * @author Curtis Rueden
 */
public class PluginFinderTest {

	/**
	 * Tests that the {@code scijava.plugin.blacklist} system property works to
	 * exclude plugins from the index, even when they are on the classpath.
	 */
	@Test
	public void testPluginBlacklistSystemProperty() {
		// check that the plugin is there, normally
		Context context = new Context(PluginService.class);
		PluginService pluginService = context.service(PluginService.class);
		PluginInfo<SciJavaPlugin> plugin = //
			pluginService.getPlugin(BlacklistedPlugin.class);
		assertSame(BlacklistedPlugin.class.getName(), plugin.getClassName());
		context.dispose();

		// blacklist the plugin, then check that it is absent
		System.setProperty("scijava.plugin.blacklist", ".*BlacklistedPlugin");
		context = new Context(PluginService.class);
		pluginService = context.service(PluginService.class);
		plugin = pluginService.getPlugin(BlacklistedPlugin.class);
		assertNull(plugin);
		context.dispose();

		// reset the system
		System.getProperties().remove("scijava.plugin.blacklist");
	}

	@Plugin(type = SciJavaPlugin.class)
	public static class BlacklistedPlugin implements SciJavaPlugin {
		// NB: No implementation needed.
	}

}
