Add basic test for PluginFileHandler.

test/com/dmdirc/plugins/PluginFileHandlerTest.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2006-2015 DMDirc Developers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.plugins;
+
+import com.dmdirc.tests.JimFsRule;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
+
+@RunWith(MockitoJUnitRunner.class)
+public class PluginFileHandlerTest {
+
+    @Rule public final JimFsRule jimFsRule = new JimFsRule();
+
+    @Mock private PluginManager pluginManager;
+
+    private PluginFileHandler fileHandler;
+    private Path directory;
+
+    @Before
+    public void setUp() throws IOException {
+        directory = jimFsRule.getPath("plugins");
+
+        Files.createDirectory(directory);
+        fileHandler = new PluginFileHandler(directory);
+    }
+
+    @Test
+    public void testMovesUpdatedJar() throws IOException {
+        Files.copy(getClass().getResource("plugin.jar").openStream(),
+                directory.resolve("plugin.jar.update"));
+
+        fileHandler.refresh(pluginManager);
+
+        assertFalse(Files.exists(directory.resolve("plugin.jar.update")));
+        assertTrue(Files.exists(directory.resolve("plugin.jar")));
+    }
+
+    @Test
+    public void testReplacesExistingJarWithUpdatedVersion() throws IOException {
+        Files.write(directory.resolve("plugin.jar"), new byte[0]);
+        Files.copy(getClass().getResource("plugin.jar").openStream(),
+                directory.resolve("plugin.jar.update"));
+
+        assumeTrue(Files.size(directory.resolve("plugin.jar")) == 0);
+
+        fileHandler.refresh(pluginManager);
+
+        assertFalse(Files.exists(directory.resolve("plugin.jar.update")));
+        assertTrue(Files.exists(directory.resolve("plugin.jar")));
+        assertTrue(Files.size(directory.resolve("plugin.jar")) > 0);
+    }
+
+}