ONOS-542 Defining application subsystem interfaces & public constructs.

Change-Id: Iba0d2cb69dace5beee8a68def9918059ce755b5c
diff --git a/core/common/src/test/java/org/onosproject/common/app/ApplicationArchiveTest.java b/core/common/src/test/java/org/onosproject/common/app/ApplicationArchiveTest.java
new file mode 100644
index 0000000..c1b8e82
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/common/app/ApplicationArchiveTest.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.common.app;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.io.ByteStreams;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.app.ApplicationDescription;
+import org.onosproject.app.ApplicationException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Set;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.onosproject.app.DefaultApplicationDescriptionTest.*;
+
+public class ApplicationArchiveTest {
+
+    static final String ROOT = "/tmp/app-junit";
+
+    private ApplicationArchive aar = new ApplicationArchive();
+
+    @Before
+    public void setUp() {
+        aar.setAppsRoot(ROOT);
+    }
+
+    private void validate(ApplicationDescription app) {
+        assertEquals("incorrect name", APP_NAME, app.name());
+        assertEquals("incorrect version", VER, app.version());
+        assertEquals("incorrect origin", ORIGIN, app.origin());
+
+        assertEquals("incorrect description", DESC, app.description());
+        assertEquals("incorrect features URI", FURL, app.featuresRepo().get());
+        assertEquals("incorrect permissions", PERMS, app.permissions());
+        assertEquals("incorrect features", FEATURES, app.features());
+    }
+
+    @Test
+    public void saveApp() throws IOException {
+        InputStream stream = getClass().getResourceAsStream("app.zip");
+        ApplicationDescription app = aar.saveApplication(stream);
+        validate(app);
+    }
+
+    @Test
+    public void loadApp() throws IOException {
+        saveApp();
+        ApplicationDescription app = aar.getApplicationDescription(APP_NAME);
+        validate(app);
+    }
+
+    @Test
+    public void getAppNames() throws IOException {
+        saveApp();
+        Set<String> names = aar.getApplicationNames();
+        assertEquals("incorrect names", ImmutableSet.of(APP_NAME), names);
+    }
+
+    @Test
+    public void purgeApp() throws IOException {
+        saveApp();
+        aar.purgeApplication(APP_NAME);
+        assertEquals("incorrect names", ImmutableSet.of(), aar.getApplicationNames());
+    }
+
+    @Test
+    public void getAppStream() throws IOException {
+        saveApp();
+        InputStream stream = aar.getApplicationInputStream(APP_NAME);
+        byte[] orig = ByteStreams.toByteArray(getClass().getResourceAsStream("app.zip"));
+        byte[] loaded = ByteStreams.toByteArray(stream);
+        assertArrayEquals("incorrect stream", orig, loaded);
+    }
+
+    @Test(expected = ApplicationException.class)
+    public void getBadAppDesc() throws IOException {
+        aar.getApplicationDescription("org.foo.BAD");
+    }
+
+    @Test(expected = ApplicationException.class)
+    public void getBadAppStream() throws IOException {
+        aar.getApplicationInputStream("org.foo.BAD");
+    }
+
+}
\ No newline at end of file