Index: trunk/test/unit/org/openstreetmap/josm/gui/dialogs/changeset/ChangesetCacheManagerTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/dialogs/changeset/ChangesetCacheManagerTest.java	(revision 9916)
+++ trunk/test/unit/org/openstreetmap/josm/gui/dialogs/changeset/ChangesetCacheManagerTest.java	(revision 9916)
@@ -0,0 +1,152 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.gui.dialogs.changeset;
+
+import static org.junit.Assert.assertNotNull;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.openstreetmap.josm.JOSMFixture;
+import org.openstreetmap.josm.data.osm.Changeset;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.CancelAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.ChangesetDetailViewSynchronizer;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.CloseSelectedChangesetsAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.DownloadMyChangesets;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.DownloadSelectedChangesetContentAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.DownloadSelectedChangesetsAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.QueryAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.RemoveFromCacheAction;
+import org.openstreetmap.josm.gui.dialogs.changeset.ChangesetCacheManager.ShowDetailAction;
+
+/**
+ * Unit tests of {@link ChangesetCacheManager} class.
+ */
+public class ChangesetCacheManagerTest {
+
+    /**
+     * Setup tests
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() {
+        JOSMFixture.createUnitTestFixture().init();
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager#destroyInstance}.
+     */
+    @Test
+    public void testDestroyInstance() {
+        ChangesetCacheManager.destroyInstance();
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager#buildButtonPanel},
+     *              {@link ChangesetCacheManager#buildToolbarPanel}.
+     *              {@link ChangesetCacheManager#buildModel}.
+     */
+    @Test
+    public void testBuild() {
+        assertNotNull(ChangesetCacheManager.buildButtonPanel());
+        assertNotNull(ChangesetCacheManager.buildToolbarPanel());
+        assertNotNull(ChangesetCacheManager.buildModel());
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.ChangesetDetailViewSynchronizer} class.
+     */
+    @Test
+    public void testChangesetDetailViewSynchronizer() {
+        new ChangesetDetailViewSynchronizer(new ChangesetCacheManagerModel(null) {
+            @Override
+            public List<Changeset> getSelectedChangesets() {
+                return Collections.emptyList();
+            }
+        }).valueChanged(null);
+
+        new ChangesetDetailViewSynchronizer(new ChangesetCacheManagerModel(null) {
+            @Override
+            public List<Changeset> getSelectedChangesets() {
+                return Collections.singletonList(new Changeset());
+            }
+        }).valueChanged(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.CancelAction} class.
+     */
+    @Test
+    public void testCancelAction() {
+        new CancelAction().actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.CloseSelectedChangesetsAction} class.
+     */
+    @Test
+    public void testCloseSelectedChangesetsAction() {
+        CloseSelectedChangesetsAction action = new CloseSelectedChangesetsAction(new ChangesetCacheManagerModel(null) {
+            @Override
+            public List<Changeset> getSelectedChangesets() {
+                return Collections.singletonList(new Changeset());
+            }
+        });
+        action.valueChanged(null);
+        action.actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.DownloadMyChangesets} class.
+     */
+    @Test
+    public void testDownloadMyChangesets() {
+        new DownloadMyChangesets().actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.DownloadSelectedChangesetContentAction} class.
+     */
+    @Test
+    public void testDownloadSelectedChangesetContentAction() {
+        DownloadSelectedChangesetContentAction action = new DownloadSelectedChangesetContentAction(ChangesetCacheManager.buildModel());
+        action.valueChanged(null);
+        action.actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.DownloadSelectedChangesetsAction} class.
+     */
+    @Test
+    public void testDownloadSelectedChangesetsAction() {
+        DownloadSelectedChangesetsAction action = new DownloadSelectedChangesetsAction(ChangesetCacheManager.buildModel());
+        action.valueChanged(null);
+        action.actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.QueryAction} class.
+     */
+    @Test
+    public void testQueryAction() {
+        new QueryAction().actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.RemoveFromCacheAction} class.
+     */
+    @Test
+    public void testRemoveFromCacheAction() {
+        RemoveFromCacheAction action = new RemoveFromCacheAction(ChangesetCacheManager.buildModel());
+        action.valueChanged(null);
+        action.actionPerformed(null);
+    }
+
+    /**
+     * Unit test of {@link ChangesetCacheManager.ShowDetailAction} class.
+     */
+    @Test
+    public void testShowDetailAction() {
+        new ShowDetailAction(ChangesetCacheManager.buildModel()).actionPerformed(null);
+    }
+}