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/*
 * ============LICENSE_START=======================================================
 * PNF-REGISTRATION-HANDLER
 * ================================================================================
 * Copyright (C) 2018 NOKIA 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.dcaegen2.services.prh.service.producer;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;

import java.net.URI;
import java.net.URISyntaxException;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.onap.dcaegen2.services.prh.config.DmaapPublisherConfiguration;
import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModel;
import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModelForUnitTest;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;
import reactor.test.StepVerifier;

/**
 * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
 */

class DMaaPProducerReactiveHttpClientTest {

    private DMaaPProducerReactiveHttpClient dmaapProducerReactiveHttpClient;

    private DmaapPublisherConfiguration dmaapPublisherConfigurationMock = mock(
        DmaapPublisherConfiguration.class);
    private ConsumerDmaapModel consumerDmaapModel = new ConsumerDmaapModelForUnitTest();


    @BeforeEach
    void setUp() {
        when(dmaapPublisherConfigurationMock.dmaapHostName()).thenReturn("54.45.33.2");
        when(dmaapPublisherConfigurationMock.dmaapProtocol()).thenReturn("https");
        when(dmaapPublisherConfigurationMock.dmaapPortNumber()).thenReturn(1234);
        when(dmaapPublisherConfigurationMock.dmaapUserName()).thenReturn("PRH");
        when(dmaapPublisherConfigurationMock.dmaapUserPassword()).thenReturn("PRH");
        when(dmaapPublisherConfigurationMock.dmaapContentType()).thenReturn("application/json");
        when(dmaapPublisherConfigurationMock.dmaapTopicName()).thenReturn("unauthenticated.PNF_READY");
        dmaapProducerReactiveHttpClient = new DMaaPProducerReactiveHttpClient(dmaapPublisherConfigurationMock);

    }

    @Test
    void getHttpResponse_Success() {
        //given
        int responseSuccess = 200;
        ResponseEntity<String> mockedResponseEntity = mock(ResponseEntity.class);
        RestTemplate restTemplate = mock(RestTemplate.class);
        //when
        when(mockedResponseEntity.getStatusCode()).thenReturn(HttpStatus.valueOf(responseSuccess));
        doReturn(mockedResponseEntity).when(restTemplate)
            .exchange(any(URI.class), any(HttpMethod.class), any(HttpEntity.class), (Class<Object>) any());
        dmaapProducerReactiveHttpClient.createDMaaPWebClient(restTemplate);

        //then
        StepVerifier.create(dmaapProducerReactiveHttpClient.getDMaaPProducerResponse(consumerDmaapModel))
            .expectSubscription().expectNext(mockedResponseEntity).verifyComplete();
    }

    @Test
    void getHttpResponse_whenUriSyntaxExceptionHasBeenThrown() throws URISyntaxException {
        //given
        dmaapProducerReactiveHttpClient = spy(dmaapProducerReactiveHttpClient);
        //when
        when(dmaapProducerReactiveHttpClient.getUri()).thenThrow(URISyntaxException.class);

        //then
        StepVerifier.create(dmaapProducerReactiveHttpClient.getDMaaPProducerResponse(any())).expectSubscription()
            .expectError(Exception.class).verify();
    }

    @Test
    void getAppropriateUri_whenPassingCorrectedPathForPnf() throws URISyntaxException {
        Assertions.assertEquals(dmaapProducerReactiveHttpClient.getUri(),
            URI.create("https://54.45.33.2:1234/unauthenticated.PNF_READY"));
    }
}