ONOS-1470 Added unit tests for component config REST API.

Change-Id: Id08c629cefff1a1276e6be7c07ea62e4ae89468a

+/*
+ * 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.rest;
+
+import com.google.common.collect.ImmutableSet;
+import com.sun.jersey.api.client.UniformInterfaceException;
+import com.sun.jersey.api.client.WebResource;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.osgi.ServiceDirectory;
+import org.onlab.osgi.TestServiceDirectory;
+import org.onlab.rest.BaseResource;
+import org.onosproject.cfg.ComponentConfigAdapter;
+import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.cfg.ConfigProperty;
+
+import java.util.Set;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.not;
+import static org.junit.Assert.assertEquals;
+import static org.onosproject.cfg.ConfigProperty.Type.INTEGER;
+import static org.onosproject.cfg.ConfigProperty.Type.STRING;
+import static org.onosproject.cfg.ConfigProperty.defineProperty;
+
+/**
+ * Test of the component config REST API.
+ */
+public class ComponentConfigWebResourceTest extends ResourceTest {
+
+    private TestConfigManager service;
+
+    @Before
+    public void setUp() {
+        service = new TestConfigManager();
+        ServiceDirectory testDirectory =
+                new TestServiceDirectory()
+                        .add(ComponentConfigService.class, service);
+        BaseResource.setServiceDirectory(testDirectory);
+    }
+
+    @Test
+    public void getAllConfigs() {
+        WebResource rs = resource();
+        String response = rs.path("configuration").get(String.class);
+        assertThat(response, containsString("\"foo\":"));
+        assertThat(response, containsString("\"bar\":"));
+    }
+
+    @Test
+    public void getConfigs() {
+        WebResource rs = resource();
+        String response = rs.path("configuration/foo").get(String.class);
+        assertThat(response, containsString("{\"foo\":"));
+        assertThat(response, not(containsString("{\"bar\":")));
+    }
+
+    @Test
+    public void setConfigs() {
+        WebResource rs = resource();
+        try {
+            rs.path("configuration/foo").post(String.class, "{ \"k\" : \"v\" }");
+        } catch (UniformInterfaceException e) {
+            assertEquals("incorrect key", "foo", service.component);
+            assertEquals("incorrect key", "k", service.name);
+            assertEquals("incorrect value", "v", service.value);
+        }
+    }
+
+    @Test
+    public void unsetConfigs() {
+        WebResource rs = resource();
+        try {
+            rs.path("configuration/foo").delete(String.class, "{ \"k\" : \"v\" }");
+        } catch (UniformInterfaceException e) {
+            assertEquals("incorrect key", "foo", service.component);
+            assertEquals("incorrect key", "k", service.name);
+            assertEquals("incorrect value", null, service.value);
+        }
+    }
+
+
+    private class TestConfigManager extends ComponentConfigAdapter {
+
+        private String component;
+        private String name;
+        private String value;
+
+        @Override
+        public Set<String> getComponentNames() {
+            return ImmutableSet.of("foo", "bar");
+        }
+
+        @Override
+        public void setProperty(String componentName, String name, String value) {
+            this.component = componentName;
+            this.name = name;
+            this.value = value;
+        }
+
+        @Override
+        public void unsetProperty(String componentName, String name) {
+            this.component = componentName;
+            this.name = name;
+            this.value = null;
+        }
+
+        @Override
+        public Set<ConfigProperty> getProperties(String componentName) {
+            return ImmutableSet.of(defineProperty("k1", STRING, "d1", "dv1"),
+                                   defineProperty("k2", INTEGER, "d2", "321"));
+        }
+    }
+}
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