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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,
// 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.
package org.apache.cloudstack.api.command.test;

import com.cloud.storage.Snapshot;
import com.cloud.storage.VolumeApiService;
import com.cloud.user.Account;
import com.cloud.user.AccountService;
import junit.framework.TestCase;
import org.apache.cloudstack.api.ResponseGenerator;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.command.user.snapshot.CreateSnapshotCmd;
import org.apache.cloudstack.api.response.SnapshotResponse;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.mockito.Mockito;

import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyBoolean;
import static org.mockito.Matchers.anyLong;
import static org.mockito.Matchers.anyString;
import static org.mockito.Matchers.isNull;

public class CreateSnapshotCmdTest extends TestCase {

    private CreateSnapshotCmd createSnapshotCmd;
    private ResponseGenerator responseGenerator;

    @Rule
    public ExpectedException expectedException = ExpectedException.none();

    @Override
    @Before
    public void setUp() {

        createSnapshotCmd = new CreateSnapshotCmd() {

            @Override
            public String getCommandName() {
                return "createsnapshotresponse";
            }

            @Override
            public Long getVolumeId(){
                return 1L;
            }

            @Override
            public long getEntityOwnerId(){
                return 1L;
            }
        };

    }

    @Test
    public void testCreateSuccess() {

        AccountService accountService = Mockito.mock(AccountService.class);
        Account account = Mockito.mock(Account.class);
        Mockito.when(accountService.getAccount(anyLong())).thenReturn(account);

        VolumeApiService volumeApiService = Mockito.mock(VolumeApiService.class);
        Snapshot snapshot = Mockito.mock(Snapshot.class);
        try {

            Mockito.when(volumeApiService.takeSnapshot(anyLong(), anyLong(), anyLong(),
                    any(Account.class), anyBoolean(), isNull(Snapshot.LocationType.class))).thenReturn(snapshot);

        } catch (Exception e) {
            Assert.fail("Received exception when success expected " + e.getMessage());
        }

        responseGenerator = Mockito.mock(ResponseGenerator.class);
        SnapshotResponse snapshotResponse = Mockito.mock(SnapshotResponse.class);
        Mockito.when(responseGenerator.createSnapshotResponse(snapshot)).thenReturn(snapshotResponse);
        Mockito.doNothing().when(snapshotResponse).setAccountName(anyString());

        createSnapshotCmd._accountService = accountService;
        createSnapshotCmd._responseGenerator = responseGenerator;
        createSnapshotCmd._volumeService = volumeApiService;

        try {
            createSnapshotCmd.execute();
        } catch (Exception e) {
            Assert.fail("Received exception when success expected " + e.getMessage());
        }
    }

    @Test
    public void testCreateFailure() {

        AccountService accountService = Mockito.mock(AccountService.class);
        Account account = Mockito.mock(Account.class);
        Mockito.when(accountService.getAccount(anyLong())).thenReturn(account);

        VolumeApiService volumeApiService = Mockito.mock(VolumeApiService.class);

        try {
                Mockito.when(volumeApiService.takeSnapshot(anyLong(), anyLong(), anyLong(),
                        any(Account.class), anyBoolean(), isNull(Snapshot.LocationType.class))).thenReturn(null);
        } catch (Exception e) {
            Assert.fail("Received exception when success expected " + e.getMessage());
        }

        createSnapshotCmd._accountService = accountService;
        createSnapshotCmd._volumeService = volumeApiService;

        try {
            createSnapshotCmd.execute();
        } catch (ServerApiException exception) {
            Assert.assertEquals("Failed to create snapshot due to an internal error creating snapshot for volume 1", exception.getDescription());
        }
    }
}