    1   /*
    2    * Copyright 2004-2009 the Seasar Foundation and the Others.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *     http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
    13   * either express or implied. See the License for the specific language
    14   * governing permissions and limitations under the License.
    15   */
    16  package org.seasar.cubby.spi;
    17
    18  import static org.junit.Assert.assertSame;
    19  import static org.junit.Assert.fail;
    20
    21  import org.junit.Test;
    22  import org.seasar.cubby.plugin.PluginRegistry;
    23  import org.seasar.cubby.plugins.BinderPlugin;
    24
    25  public class ProviderFactoryTest {
    26
    27  	private final PluginRegistry pluginRegistry = PluginRegistry.getInstance();
    28
    29  	@Test
    30  	public void getSingletonInstanceInMultiThread() throws Exception {
    31  		try {
    32  			ProviderFactory.get(FooProvider.class);
    33  			fail();
    34  		} catch (IllegalArgumentException e) {
    35  			// ok
    36  		}
    37
    38  		final BinderPlugin binderPlugin = new BinderPlugin();
    39  		FooProviderImpl fooProviderImpl = new FooProviderImpl();
    40  		binderPlugin.bind(FooProvider.class).toInstance(fooProviderImpl);
    41  		pluginRegistry.register(binderPlugin);
    42
    43  		assertSame(fooProviderImpl, ProviderFactory.get(FooProvider.class));
    44  		assertSame(fooProviderImpl, ProviderFactory.get(FooProvider.class)); // twice
    45
    46  		pluginRegistry.clear();
    47
    48  		try {
    49  			ProviderFactory.get(FooProvider.class);
    50  			fail();
    51  		} catch (IllegalArgumentException e) {
    52  			// ok
    53  		}
    54  	}
    55
    56  }