migrate powermock to mockito appc provider

Change-Id: I15bd86d2d96ecf4070f1b6eafaf8b9ba9612b9cf
Issue-ID: APPC-647
Signed-off-by: Taka Cho <tc012c@att.com>

2 files changed, 87 insertions, 14 deletions

diff --git a/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/AppcProviderTest.java b/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/AppcProviderTest.java
index 31598c9c9..4408657b3 100644
--- a/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/AppcProviderTest.java
+++ b/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/AppcProviderTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP : APPC
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Copyright (C) 2017 Amdocs
  * =============================================================================
@@ -30,6 +30,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
 import org.opendaylight.controller.md.sal.binding.test.AbstractDataBrokerTest;
 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
@@ -54,14 +55,11 @@ import org.opendaylight.yang.gen.v1.org.onap.appc.rev160104.config.payload.Confi
 import org.opendaylight.yang.gen.v1.org.onap.appc.rev160104.vnf.resource.VnfResource;
 import org.opendaylight.yangtools.yang.common.RpcResult;
 import org.onap.appc.provider.topology.TopologyService;
-import org.powermock.api.mockito.PowerMockito;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.modules.junit4.PowerMockRunner;
-import org.powermock.reflect.Whitebox;
-
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
+import java.lang.reflect.Field;
+import org.onap.appc.provider.Whitebox;
 
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doReturn;
@@ -70,8 +68,7 @@ import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
-@RunWith(PowerMockRunner.class)
-@PrepareForTest({AppcProvider.class})
+@RunWith(MockitoJUnitRunner.class)
 public class AppcProviderTest extends AbstractDataBrokerTest {
 
     @Mock
@@ -86,6 +83,7 @@ public class AppcProviderTest extends AbstractDataBrokerTest {
     private AppcProvider provider;
     private DataBroker dataBroker;
 
+
     /**
      * The @Before annotation is defined in the AbstractDataBrokerTest class. The method setupWithDataBroker is invoked
      * from inside the @Before method and is used to initialize the databroker with objects for a test runs. In our case
@@ -104,19 +102,19 @@ public class AppcProviderTest extends AbstractDataBrokerTest {
         NotificationProviderService nps = mock(NotificationProviderService.class);
         RpcProviderRegistry registry = mock(RpcProviderRegistry.class);
         BindingAwareBroker.RpcRegistration rpcRegistration = mock(BindingAwareBroker.RpcRegistration.class);
-        PowerMockito.doReturn(rpcRegistration).when(registry).addRpcImplementation(any(), any());
+        
+        doReturn(rpcRegistration).when(registry).addRpcImplementation(any(), any());
 
         provider = spy(new AppcProvider(dataBroker, nps, registry));
 
-        PowerMockito.doReturn(topologyService).when(provider).getTopologyService();
+        doReturn(topologyService).when(provider).getTopologyService();
     }
 
     @Test
     public void testConstructor() throws Exception {
-        ExecutorService executorService = Whitebox.getInternalState(provider, "executor");
+        Object executorService = Whitebox.getInternalState(provider, "executor");
         Assert.assertNotNull(executorService);
-        BindingAwareBroker.RpcRegistration internalRpcRegistration = Whitebox.getInternalState(provider,
-            "rpcRegistration");
+        Object internalRpcRegistration = Whitebox.getInternalState(provider,"rpcRegistration");
         Assert.assertNotNull(internalRpcRegistration);
     }
 
@@ -139,7 +137,7 @@ public class AppcProviderTest extends AbstractDataBrokerTest {
         doReturn(configPayload).when(modifyConfigInput).getConfigPayload();
         // mock output
         RpcResult<ModifyConfigOutput> modifyConfigOutput = mock(RpcResult.class);
-        PowerMockito.doReturn(modifyConfigOutput).when(topologyService).modifyConfig(any(), any());
+        doReturn(modifyConfigOutput).when(topologyService).modifyConfig(any(), any());
 
         Future<RpcResult<ModifyConfigOutput>> rpcResultFuture = provider.modifyConfig(modifyConfigInput);
 
diff --git a/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/Whitebox.java b/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/Whitebox.java
new file mode 100644
index 000000000..e065d1e7a
--- /dev/null
+++ b/appc-provider/appc-provider-bundle/src/test/java/org/onap/appc/provider/Whitebox.java
@@ -0,0 +1,75 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (c) 2007 Mockito contributors
+ * =============================================================================
+ * 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.
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.provider;
+
+import java.lang.reflect.Field;
+
+public class  Whitebox {
+    public static Object getInternalState(Object target, String field) {
+        Class<?> c = target.getClass();
+        try {
+            Field f = getFieldFromHierarchy(c, field);
+            f.setAccessible(true);
+            return f.get(target);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to get internal state on a private field. Please report to mockito mailing list.", e);
+        }
+    }
+
+    public static void  setInternalState(Object target, String field, Object value) {
+        Class<?> c = target.getClass();
+        try {
+            Field f = getFieldFromHierarchy(c, field);
+            f.setAccessible(true);
+            f.set(target, value);
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to set internal state on a private field. Please report to mockito mailing list.", e);
+        }
+    }
+
+    private static Field  getFieldFromHierarchy(Class<?> clazz, String field) {
+        Field f = getField(clazz, field);
+        while (f == null && clazz != Object.class) {
+            clazz = clazz.getSuperclass();
+            f = getField(clazz, field);
+        }
+        if (f == null) {
+            throw new RuntimeException(
+                    "You want me to get this field: '" + field +
+                    "' on this class: '" + clazz.getSimpleName() + 
+                    "' but this field is not declared withing hierarchy of this class!");
+        }
+        return f;
+    }
+
+    private static Field  getField(Class<?> clazz, String field) {
+        try {
+            return clazz.getDeclaredField(field);
+        } catch (NoSuchFieldException e) {
+            return null;
+        }
+    }
+}
+