plugins/network-elements/tungsten/src/test/java/org/apache/cloudstack/network/tungsten/vrouter/IntrospectApiConnectorImplTest.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cloudstack.network.tungsten.vrouter;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;

import java.io.IOException;
import java.io.InputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

@RunWith(PowerMockRunner.class)
@PrepareForTest({HttpClients.class, DocumentBuilderFactory.class})
public class IntrospectApiConnectorImplTest {
    IntrospectApiConnector introspectApiConnector;

    @Before
    public void setup() {
        VRouter vRouter = mock(VRouter.class);
        introspectApiConnector = new IntrospectApiConnectorImpl(vRouter);
        PowerMockito.mockStatic(HttpClients.class);
        PowerMockito.mockStatic(DocumentBuilderFactory.class);
    }

    @Test
    public void getSnhItfReqTest() throws Exception {
        Document document = mock(Document.class);
        CloseableHttpClient httpClient = mock(CloseableHttpClient.class);
        CloseableHttpResponse closeableHttpResponse = mock(CloseableHttpResponse.class);
        HttpEntity httpEntity = mock(HttpEntity.class);
        InputStream inputStream = mock(InputStream.class);
        DocumentBuilderFactory documentBuilderFactory = mock(DocumentBuilderFactory.class);
        DocumentBuilder documentBuilder = mock(DocumentBuilder.class);

        when(HttpClients.createDefault()).thenReturn(httpClient);
        when(httpClient.execute(any(HttpUriRequest.class))).thenReturn(closeableHttpResponse);
        when(closeableHttpResponse.getEntity()).thenReturn(httpEntity);
        when(httpEntity.getContent()).thenReturn(inputStream);
        when(DocumentBuilderFactory.newInstance()).thenReturn(documentBuilderFactory);
        when(documentBuilderFactory.newDocumentBuilder()).thenReturn(documentBuilder);
        when(documentBuilder.parse(any(InputStream.class))).thenReturn(document);

        assertEquals(document, introspectApiConnector.getSnhItfReq("948f421c-edde-4518-a391-09299cc25dc2"));
    }

    @Test
    public void getSnhItfReqWithIOExceptionTest() throws Exception {
        CloseableHttpClient httpClient = mock(CloseableHttpClient.class);

        when(HttpClients.createDefault()).thenReturn(httpClient);
        when(httpClient.execute(any(HttpUriRequest.class))).thenThrow(IOException.class);

        assertNull(introspectApiConnector.getSnhItfReq("948f421c-edde-4518-a391-09299cc25dc2"));
    }

    @Test
    public void getSnhItfReqWithParserConfigurationExceptionTest() throws Exception {
        CloseableHttpClient httpClient = mock(CloseableHttpClient.class);
        CloseableHttpResponse closeableHttpResponse = mock(CloseableHttpResponse.class);
        HttpEntity httpEntity = mock(HttpEntity.class);
        InputStream inputStream = mock(InputStream.class);
        DocumentBuilderFactory documentBuilderFactory = mock(DocumentBuilderFactory.class);

        when(HttpClients.createDefault()).thenReturn(httpClient);
        when(httpClient.execute(any(HttpUriRequest.class))).thenReturn(closeableHttpResponse);
        when(closeableHttpResponse.getEntity()).thenReturn(httpEntity);
        when(httpEntity.getContent()).thenReturn(inputStream);
        when(DocumentBuilderFactory.newInstance()).thenReturn(documentBuilderFactory);
        when(documentBuilderFactory.newDocumentBuilder()).thenThrow(ParserConfigurationException.class);

        assertNull(introspectApiConnector.getSnhItfReq("948f421c-edde-4518-a391-09299cc25dc2"));
    }

    @Test
    public void getSnhItfReqWithSAXExceptionTest() throws Exception {
        CloseableHttpClient httpClient = mock(CloseableHttpClient.class);
        CloseableHttpResponse closeableHttpResponse = mock(CloseableHttpResponse.class);
        HttpEntity httpEntity = mock(HttpEntity.class);
        InputStream inputStream = mock(InputStream.class);
        DocumentBuilderFactory documentBuilderFactory = mock(DocumentBuilderFactory.class);
        DocumentBuilder documentBuilder = mock(DocumentBuilder.class);

        when(HttpClients.createDefault()).thenReturn(httpClient);
        when(httpClient.execute(any(HttpUriRequest.class))).thenReturn(closeableHttpResponse);
        when(closeableHttpResponse.getEntity()).thenReturn(httpEntity);
        when(httpEntity.getContent()).thenReturn(inputStream);
        when(DocumentBuilderFactory.newInstance()).thenReturn(documentBuilderFactory);
        when(documentBuilderFactory.newDocumentBuilder()).thenReturn(documentBuilder);
        when(documentBuilder.parse(any(InputStream.class))).thenThrow(SAXException.class);

        assertNull(introspectApiConnector.getSnhItfReq("948f421c-edde-4518-a391-09299cc25dc2"));
    }
}