Start adding IdentityManager tests.

Change-Id: I66c8a3500310d214756f0c19a0fc26883d2da440
Reviewed-on: http://gerrit.dmdirc.com/4037
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

test/com/dmdirc/config/IdentityManagerTest.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2006-2014 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.config;
+
+import com.dmdirc.DMDircMBassador;
+import com.dmdirc.interfaces.config.ConfigProvider;
+
+import com.google.common.jimfs.Configuration;
+import com.google.common.jimfs.Jimfs;
+
+import java.io.IOException;
+import java.nio.file.FileSystem;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+@RunWith(MockitoJUnitRunner.class)
+public class IdentityManagerTest {
+
+    @Mock private DMDircMBassador eventBus;
+
+    private FileSystem fs;
+    private Path baseDirectory;
+    private Path identitiesDirectory;
+
+    @Before
+    public void setUp() throws Exception {
+        fs = Jimfs.newFileSystem(Configuration.unix());
+        baseDirectory = fs.getPath("config");
+        identitiesDirectory = baseDirectory.resolve("identities");
+    }
+
+    @Test
+    public void testLoadsVersionIdentity() throws InvalidIdentityFileException {
+        final IdentityManager identityManager = new IdentityManager(
+                baseDirectory, identitiesDirectory, eventBus);
+        identityManager.initialise();
+
+        final ConfigProvider versionSettings = identityManager.getVersionSettings();
+        assertNotNull(versionSettings);
+        assertEquals(ConfigTarget.TYPE.GLOBALDEFAULT, versionSettings.getTarget().getType());
+        assertEquals("DMDirc version information", versionSettings.getName());
+    }
+
+    @Test
+    public void testRenamesExistingDefaultsFile() throws IOException, InvalidIdentityFileException {
+        Files.createDirectories(identitiesDirectory);
+        Files.createFile(identitiesDirectory.resolve("default"));
+
+        final IdentityManager identityManager = new IdentityManager(
+                baseDirectory, identitiesDirectory, eventBus);
+        identityManager.initialise();
+
+        assertTrue(Files.exists(identitiesDirectory.resolve("default.old")));
+        assertTrue(Files.isDirectory(identitiesDirectory.resolve("default")));
+    }
+
+    @Test
+    public void testRenamesExistingDefaultsFileWithSuffix() throws IOException,
+            InvalidIdentityFileException {
+        Files.createDirectories(identitiesDirectory);
+        Files.createFile(identitiesDirectory.resolve("default"));
+        Files.createFile(identitiesDirectory.resolve("default.old"));
+        Files.createFile(identitiesDirectory.resolve("default.old-1"));
+
+        final IdentityManager identityManager = new IdentityManager(
+                baseDirectory, identitiesDirectory, eventBus);
+        identityManager.initialise();
+
+        assertTrue(Files.exists(identitiesDirectory.resolve("default.old")));
+        assertTrue(Files.exists(identitiesDirectory.resolve("default.old-1")));
+        assertTrue(Files.exists(identitiesDirectory.resolve("default.old-2")));
+        assertTrue(Files.isDirectory(identitiesDirectory.resolve("default")));
+    }
+
+}