ChefAdapterImpl junits

- Added new Junit class ChefAdapterImplVNFCOperationsTest
- Added unit tests for method vnfcEnvironment
- Small refactor to for exception handling in vnfcEnvironment method to
improve readability and avoid catching and rethrowing same exception

Change-Id: I58a43390ff45598f6d17da48eed3620667008cb7
Issue-ID: APPC-437
Signed-off-by: Michal Kabaj <michal.kabaj@nokia.com>

1 files changed, 184 insertions, 0 deletions

diff --git a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/impl/ChefAdapterImplVNFCOperationsTest.java b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/impl/ChefAdapterImplVNFCOperationsTest.java
new file mode 100644
index 000000000..1915cf8a7
--- /dev/null
+++ b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/impl/ChefAdapterImplVNFCOperationsTest.java
@@ -0,0 +1,184 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * =============================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.appc.adapter.chef.impl;
+
+
+import static com.google.common.collect.Maps.immutableEntry;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.mockito.BDDMockito.given;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableMap.Builder;
+import java.util.Map;
+import java.util.Map.Entry;
+import org.apache.http.HttpStatus;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.appc.adapter.chef.chefclient.ChefApiClientFactory;
+import org.onap.appc.adapter.chef.chefclient.api.ChefApiClient;
+import org.onap.appc.adapter.chef.chefclient.api.ChefResponse;
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ChefAdapterImplVNFCOperationsTest {
+
+    private static final String CLIENT_PRIVATE_KEY_PATH = "/opt/onap/appc/chef/localhost/onap/testclient.pem";
+    private static final String RESULT_CODE_ATTR_KEY = "chefServerResult.code";
+    private static final String RESULT_MESSAGE_ATTR_KEY = "chefServerResult.message";
+    private static final String USERNAME = "testclient";
+    private static final String SERVER_ADDRESS = "localhost";
+    private static final String ORGANIZATIONS = "onap";
+    private static final String ENV_PARAM_KEY = "Environment";
+    private static final String ENV_JSON_VALUE = "{name:envName}";
+    private static final String FAILURE_STATUS = "failure";
+    private static final String SUCCESS_STATUS = "success";
+    private static final String CHEF_ADAPTER_ERROR_PREFIX = "Chef Adapter error:";
+
+    @Mock
+    private PrivateKeyChecker privateKeyChecker;
+    @Mock
+    private ChefApiClientFactory chefApiClientFactory;
+    @Mock
+    private ChefApiClient chefApiClient;
+
+    @InjectMocks
+    private ChefAdapterFactory chefAdapterFactory;
+    private SvcLogicContext svcLogicContext;
+
+    @Before
+    public void setUp() {
+        svcLogicContext = new SvcLogicContext();
+    }
+
+    @Test
+    public void vnfcEnvironment_shouldSkipEnvironmentCreation_whenEnvParamIsEmpty() throws SvcLogicException {
+        // GIVEN
+        Map<String, String> params = givenInputParams(immutableEntry(ENV_PARAM_KEY, ""));
+
+        // WHEN
+        chefAdapterFactory.create().vnfcEnvironment(params, svcLogicContext);
+
+        // THEN
+        assertThat(svcLogicContext.getStatus()).isEqualTo(SUCCESS_STATUS);
+        assertThat(svcLogicContext.getAttribute(RESULT_CODE_ATTR_KEY))
+            .isEqualTo(Integer.toString(HttpStatus.SC_OK));
+        assertThat(svcLogicContext.getAttribute(RESULT_MESSAGE_ATTR_KEY)).isEqualTo("Skip Environment block ");
+    }
+
+    @Test
+    public void vnfcEnvironment_shouldCreateNewEnvironment_forEnvParam_whenRequestedEnvDoesNotExist()
+        throws SvcLogicException {
+        // GIVEN
+        String expectedErrorMessage = "New Environment Created";
+        Map<String, String> params = givenInputParams(immutableEntry(ENV_PARAM_KEY, ENV_JSON_VALUE));
+        given(privateKeyChecker.doesExist(CLIENT_PRIVATE_KEY_PATH)).willReturn(true);
+        given(chefApiClientFactory.create("https://localhost/organizations/onap", ORGANIZATIONS, USERNAME,
+            CLIENT_PRIVATE_KEY_PATH)).willReturn(chefApiClient);
+        given(chefApiClient.put("/environments/" + "envName", ENV_JSON_VALUE))
+            .willReturn(ChefResponse.create(HttpStatus.SC_NOT_FOUND, ""));
+        given(chefApiClient.post("/environments", ENV_JSON_VALUE))
+            .willReturn(ChefResponse.create(HttpStatus.SC_CREATED, expectedErrorMessage));
+
+        // WHEN
+        chefAdapterFactory.create().vnfcEnvironment(params, svcLogicContext);
+
+        // THEN
+        assertThat(svcLogicContext.getStatus()).isEqualTo(SUCCESS_STATUS);
+        assertThat(svcLogicContext.getAttribute(RESULT_CODE_ATTR_KEY))
+            .isEqualTo(Integer.toString(HttpStatus.SC_CREATED));
+        assertThat(svcLogicContext.getAttribute(RESULT_MESSAGE_ATTR_KEY)).isEqualTo(expectedErrorMessage);
+    }
+
+    @Test
+    public void vnfcEnvironment_shouldNotAttemptEnvCreation_andThrowException_whenPrivateKeyCheckFails() {
+        // GIVEN
+        String expectedErrorMsg = "Cannot find the private key in the APPC file system, please load the private key to ";
+        Map<String, String> params = givenInputParams(immutableEntry(ENV_PARAM_KEY, ENV_JSON_VALUE));
+        given(privateKeyChecker.doesExist(CLIENT_PRIVATE_KEY_PATH)).willReturn(false);
+
+        // WHEN  // THEN
+        assertThatExceptionOfType(SvcLogicException.class)
+            .isThrownBy(() -> chefAdapterFactory.create().vnfcEnvironment(params, svcLogicContext))
+            .withMessage(CHEF_ADAPTER_ERROR_PREFIX + expectedErrorMsg + CLIENT_PRIVATE_KEY_PATH);
+
+        assertThat(svcLogicContext.getStatus()).isEqualTo(FAILURE_STATUS);
+        assertThat(svcLogicContext.getAttribute(RESULT_CODE_ATTR_KEY))
+            .isEqualTo(Integer.toString(HttpStatus.SC_INTERNAL_SERVER_ERROR));
+        assertThat(svcLogicContext.getAttribute(RESULT_MESSAGE_ATTR_KEY))
+            .isEqualTo(expectedErrorMsg + CLIENT_PRIVATE_KEY_PATH);
+    }
+
+    @Test
+    public void vnfcEnvironment_shouldNotAttemptEnvCreation_andHandleJSONException_whenJSONParamsAreMalformed() {
+        // GIVEN
+        String expectedErrorMessage = "Error posting request due to invalid JSON block: ";
+        Map<String, String> params = givenInputParams(immutableEntry(ENV_PARAM_KEY, "MALFORMED_JSON"));
+        given(privateKeyChecker.doesExist(CLIENT_PRIVATE_KEY_PATH)).willReturn(true);
+
+        // WHEN  // THEN
+        assertThatExceptionOfType(SvcLogicException.class)
+            .isThrownBy(() -> chefAdapterFactory.create().vnfcEnvironment(params, svcLogicContext))
+            .withMessageStartingWith(CHEF_ADAPTER_ERROR_PREFIX + expectedErrorMessage);
+
+        assertThat(svcLogicContext.getStatus()).isEqualTo(FAILURE_STATUS);
+        assertThat(svcLogicContext.getAttribute(RESULT_CODE_ATTR_KEY))
+            .isEqualTo(Integer.toString(HttpStatus.SC_UNAUTHORIZED));
+        assertThat(svcLogicContext.getAttribute(RESULT_MESSAGE_ATTR_KEY))
+            .startsWith(expectedErrorMessage);
+    }
+
+    @Test
+    public void vnfcEnvironment_shouldNotAttemptEnvCreation_andHandleException_whenExceptionOccursDuringExecution() {
+        // GIVEN
+        String expectedErrorMessage = "Error posting request: ";
+        Map<String, String> params = givenInputParams(immutableEntry(ENV_PARAM_KEY, ENV_JSON_VALUE));
+        given(privateKeyChecker.doesExist(CLIENT_PRIVATE_KEY_PATH)).willReturn(true);
+        given(chefApiClientFactory.create("https://localhost/organizations/onap", ORGANIZATIONS, USERNAME,
+            CLIENT_PRIVATE_KEY_PATH)).willThrow(new NullPointerException("Null value encountered"));
+
+        // WHEN  // THEN
+        assertThatExceptionOfType(SvcLogicException.class)
+            .isThrownBy(() -> chefAdapterFactory.create().vnfcEnvironment(params, svcLogicContext))
+            .withMessage(CHEF_ADAPTER_ERROR_PREFIX + expectedErrorMessage + "Null value encountered");
+
+        assertThat(svcLogicContext.getStatus()).isEqualTo(FAILURE_STATUS);
+        assertThat(svcLogicContext.getAttribute(RESULT_CODE_ATTR_KEY))
+            .isEqualTo(Integer.toString(HttpStatus.SC_UNAUTHORIZED));
+        assertThat(svcLogicContext.getAttribute(RESULT_MESSAGE_ATTR_KEY)).startsWith(expectedErrorMessage);
+    }
+
+    private Map<String, String> givenInputParams(Entry<String, String>... entries) {
+        Builder<String, String> paramsBuilder = ImmutableMap.builder();
+        paramsBuilder.put("username", USERNAME)
+            .put("serverAddress", SERVER_ADDRESS)
+            .put("organizations", ORGANIZATIONS);
+
+        for (Entry<String, String> entry : entries) {
+            paramsBuilder.put(entry);
+        }
+        return paramsBuilder.build();
+    }
+}
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