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/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. 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.so.client.policy;

import static com.shazam.shazamcrest.matcher.Matchers.sameBeanAs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.mockito.Matchers.isA;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Matchers.any;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import org.mockito.Mockito;
import org.onap.so.client.defaultproperties.PolicyRestPropertiesImpl;
import org.onap.so.client.policy.entities.Config;
import org.onap.so.client.policy.entities.ConfigRequestParameters;
import org.onap.so.client.policy.entities.DictionaryData;
import org.onap.so.client.policy.entities.PolicyConfig;
import org.onap.so.client.policy.entities.PolicyDecision;
import org.onap.so.client.policy.entities.PolicyServiceType;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

public class PolicyClientImplTest {

	@BeforeClass
	public static void setUp() {
		System.setProperty("mso.config.path", "src/test/resources");
	}

	private static String RESOURCE_PATH = "src/test/resources/__files/Policy/";

	@Test
	public void successReadProperties() {
		PolicyRestClient client = new PolicyRestClient(new PolicyRestPropertiesImpl(), PolicyServiceType.GET_DECISION);
		Map<String, String> map = new HashMap<>();
		client.initializeHeaderMap(map);
		assertEquals("Found expected Client Auth", "Basic bTAzNzQzOnBvbGljeVIwY2sk", map.get("ClientAuth"));
		assertEquals("Found expected Authorization", "Basic dGVzdHBkcDphbHBoYTEyMw==", map.get("Authorization"));
		assertEquals("Found expected Environment", "TEST", map.get("Environment"));
	}

	@Test
	@Ignore
	public void getDecisionTest() {
		PolicyClient client = new PolicyClientImpl();
		PolicyDecision decision = client.getDecision("S", "V", "BB1", "1", "123");
		assertEquals("Decision is correct", decision.getDecision(), "PERMIT");
		assertEquals("Decision details is correct", decision.getDetails(), "Retry");
	}

	@Test
	@Ignore
	public void getAllowedTreatmentsTest() {
		PolicyClient client = new PolicyClientImpl();
		DictionaryData dictClient = client.getAllowedTreatments("BB1", "1");
		final String dictBbidString = dictClient.getBbid().getString();
		final String dictWorkStepString = dictClient.getWorkstep().getString();
		assertEquals("DictionaryData matches a response Bbid", dictBbidString, "BB1");
		assertEquals("DicitonaryData matches a response WorkStep", dictWorkStepString, "1");
	}

	@Test
	public void getDecisionMockTest() {
		String serviceType = "S";
		String vnfType = "V";
		String bbID = "BB1";
		String workStep = "1";
		String errorCode = "123";

		PolicyDecision expected = new PolicyDecision();
		expected.setDecision("PERMIT");
		expected.setDetails("Retry");

		DecisionAttributes decisionAttributes = new DecisionAttributes();
		decisionAttributes.setServiceType(serviceType);
		decisionAttributes.setVNFType(vnfType);
		decisionAttributes.setBBID(bbID);
		decisionAttributes.setWorkStep(workStep);
		decisionAttributes.setErrorCode(errorCode);
		PolicyClient client = Mockito.spy(PolicyClientImpl.class);

		doReturn(expected).when(client).getDecision(serviceType, vnfType, bbID, workStep, errorCode);

		PolicyDecision actual = client.getDecision(serviceType, vnfType, bbID, workStep, errorCode);
		assertThat(actual, sameBeanAs(expected));
	}

	@Test
	public void getConfigFromStringJsonTest() throws JsonParseException, JsonMappingException, IOException {
		PolicyClientImpl client = new PolicyClientImpl();
		ObjectMapper mapper = new ObjectMapper();
		mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);
		mapper.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, false);
		Config expected = mapper.readValue(new File(RESOURCE_PATH + "configJson.json"), Config.class);
		PolicyConfig[] returnedPolicyConfigList = mapper.readValue(new File(RESOURCE_PATH + "policyConfig.json"), PolicyConfig[].class);
		String configJson = returnedPolicyConfigList[0].getConfig();
		Config actual = client.getConfigFromStringJson(configJson);

		assertThat(actual, sameBeanAs(expected));
	}
	
	@Test
	public void getConfigWithPolicyNameTest() throws JsonParseException, JsonMappingException, IOException {
		PolicyClientImpl client = Mockito.spy(PolicyClientImpl.class);
		ObjectMapper mapper = new ObjectMapper();
		mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);
		mapper.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, false);
		PolicyConfig[] returnedPolicyConfigList = mapper.readValue(new File(RESOURCE_PATH + "policyConfig.json"), PolicyConfig[].class);
		Config expected = mapper.readValue(new File(RESOURCE_PATH + "configJson.json"), Config.class);
		
		PolicyRestClient mockedClient = Mockito.mock(PolicyRestClient.class);
		doReturn(mockedClient).when(client).getPolicyRestClient(PolicyServiceType.GET_CONFIG);
		doReturn(returnedPolicyConfigList).when(mockedClient).post(isA(ConfigRequestParameters.class), any());
		
		Config actual = client.getConfigWithPolicyName("policyName");
		
		assertThat(actual, sameBeanAs(expected));
		
	}
}