services/self-service/src/test/java/com/epam/dlab/backendapi/service/impl/GitCredentialServiceImplTest.java

/*
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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,
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package com.epam.dlab.backendapi.service.impl;

import com.epam.dlab.auth.UserInfo;
import com.epam.dlab.backendapi.dao.ExploratoryDAO;
import com.epam.dlab.backendapi.dao.GitCredsDAO;
import com.epam.dlab.backendapi.domain.EndpointDTO;
import com.epam.dlab.backendapi.domain.RequestId;
import com.epam.dlab.backendapi.service.EndpointService;
import com.epam.dlab.backendapi.util.RequestBuilder;
import com.epam.dlab.cloud.CloudProvider;
import com.epam.dlab.dto.UserInstanceDTO;
import com.epam.dlab.dto.exploratory.ExploratoryGitCredsDTO;
import com.epam.dlab.dto.exploratory.ExploratoryGitCredsUpdateDTO;
import com.epam.dlab.exceptions.DlabException;
import com.epam.dlab.rest.client.RESTService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import java.util.Collections;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Mockito.*;

@RunWith(MockitoJUnitRunner.class)
public class GitCredentialServiceImplTest {

	private final String USER = "test";

	@Mock
	private GitCredsDAO gitCredsDAO;
	@Mock
	private ExploratoryDAO exploratoryDAO;
	@Mock
	private RESTService provisioningService;
	@Mock
	private RequestBuilder requestBuilder;
	@Mock
	private RequestId requestId;
	@Mock
	private EndpointService endpointService;

	@InjectMocks
	private GitCredentialServiceImpl gitCredentialService;

	@Test
	public void updateGitCredentials() {
		String token = "token";
		UserInfo userInfo = new UserInfo(USER, token);
		doNothing().when(gitCredsDAO).updateGitCreds(anyString(), any(ExploratoryGitCredsDTO.class));
		when(endpointService.get(anyString())).thenReturn(endpointDTO());

		String exploratoryName = "explName";
		UserInstanceDTO uiDto = new UserInstanceDTO().withExploratoryName(exploratoryName).withUser(USER);
		when(exploratoryDAO.fetchRunningExploratoryFields(anyString())).thenReturn(Collections.singletonList(uiDto));

		ExploratoryGitCredsUpdateDTO egcuDto = new ExploratoryGitCredsUpdateDTO().withExploratoryName(exploratoryName);
		when(requestBuilder.newGitCredentialsUpdate(any(UserInfo.class), any(UserInstanceDTO.class), any(EndpointDTO.class),
				any(ExploratoryGitCredsDTO.class))).thenReturn(egcuDto);

		String uuid = "someUuid";
		when(provisioningService.post(anyString(), anyString(), any(ExploratoryGitCredsUpdateDTO.class), any()))
				.thenReturn(uuid);
		when(requestId.put(anyString(), anyString())).thenReturn(uuid);

		ExploratoryGitCredsDTO egcDto = new ExploratoryGitCredsDTO();
		gitCredentialService.updateGitCredentials(userInfo, egcDto);

		verify(gitCredsDAO).updateGitCreds(USER, egcDto);
		verify(exploratoryDAO).fetchRunningExploratoryFields(USER);
		verify(requestBuilder).newGitCredentialsUpdate(userInfo, uiDto, endpointDTO(), egcDto);
		verify(provisioningService).post(endpointDTO().getUrl() + "exploratory/git_creds", token, egcuDto,
				String.class);
		verify(requestId).put(USER, uuid);
		verifyNoMoreInteractions(gitCredsDAO, exploratoryDAO, requestBuilder, provisioningService, requestId);
	}

	@Test
	public void updateGitCredentialsWhenMethodUpdateGitCredsThrowsException() {
		String token = "token";
		UserInfo userInfo = new UserInfo(USER, token);
		doThrow(new NullPointerException())
				.when(gitCredsDAO).updateGitCreds(anyString(), any(ExploratoryGitCredsDTO.class));

		ExploratoryGitCredsDTO egcDto = new ExploratoryGitCredsDTO();
		try {
			gitCredentialService.updateGitCredentials(userInfo, egcDto);
		} catch (DlabException e) {
			assertEquals("Cannot update the GIT credentials: null", e.getMessage());
		}

		verify(gitCredsDAO).updateGitCreds(USER, egcDto);
		verifyNoMoreInteractions(gitCredsDAO);
	}

	@Test
	public void updateGitCredentialsWithFailedNotebooks() {
		when(endpointService.get(anyString())).thenReturn(endpointDTO());
		String token = "token";
		UserInfo userInfo = new UserInfo(USER, token);
		doNothing().when(gitCredsDAO).updateGitCreds(anyString(), any(ExploratoryGitCredsDTO.class));

		String exploratoryName = "explName";
		UserInstanceDTO uiDto = new UserInstanceDTO().withExploratoryName(exploratoryName).withUser(USER);
		when(exploratoryDAO.fetchRunningExploratoryFields(anyString())).thenReturn(Collections.singletonList(uiDto));

		doThrow(new DlabException("Cannot create instance of resource class "))
				.when(requestBuilder).newGitCredentialsUpdate(any(UserInfo.class), any(UserInstanceDTO.class),
				any(EndpointDTO.class), any(ExploratoryGitCredsDTO.class));

		ExploratoryGitCredsDTO egcDto = new ExploratoryGitCredsDTO();
		try {
			gitCredentialService.updateGitCredentials(userInfo, egcDto);
		} catch (DlabException e) {
			assertEquals("Cannot update the GIT credentials: Requests for notebooks failed: explName",
					e.getMessage());
		}

		verify(gitCredsDAO).updateGitCreds(USER, egcDto);
		verify(exploratoryDAO).fetchRunningExploratoryFields(USER);
		verify(requestBuilder).newGitCredentialsUpdate(userInfo, uiDto, endpointDTO(), egcDto);
		verifyNoMoreInteractions(gitCredsDAO, exploratoryDAO, requestBuilder);
	}

	@Test
	public void getGitCredentials() {
		ExploratoryGitCredsDTO expectedEgcDto = new ExploratoryGitCredsDTO();
		when(gitCredsDAO.findGitCreds(anyString(), anyBoolean())).thenReturn(expectedEgcDto);

		ExploratoryGitCredsDTO actualEgcDto = gitCredentialService.getGitCredentials(USER);
		assertNotNull(actualEgcDto);
		assertEquals(expectedEgcDto, actualEgcDto);

		verify(gitCredsDAO).findGitCreds(USER, true);
		verifyNoMoreInteractions(gitCredsDAO);
	}

	@Test
	public void getGitCredentialsWhenMethodFindGitCredsThrowsException() {
		doThrow(new NullPointerException()).when(gitCredsDAO).findGitCreds(anyString(), anyBoolean());
		try {
			gitCredentialService.getGitCredentials(USER);
		} catch (DlabException e) {
			assertEquals("Cannot load GIT credentials for user test: null", e.getMessage());
		}
		verify(gitCredsDAO).findGitCreds(USER, true);
		verifyNoMoreInteractions(gitCredsDAO);
	}

	private EndpointDTO endpointDTO() {
		return new EndpointDTO("test", "url", "", null, EndpointDTO.EndpointStatus.ACTIVE, CloudProvider.AWS);
	}
}