/*
 * Copyright 2022 Google LLC
 *
 * 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
 *
 *      https://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 com.google.cloud.bigqueryconnection.v1;

import static com.google.cloud.bigqueryconnection.v1.ConnectionServiceClient.ListConnectionsPagedResponse;

import com.google.api.gax.core.NoCredentialsProvider;
import com.google.api.gax.grpc.GaxGrpcProperties;
import com.google.api.gax.grpc.testing.LocalChannelProvider;
import com.google.api.gax.grpc.testing.MockGrpcService;
import com.google.api.gax.grpc.testing.MockServiceHelper;
import com.google.api.gax.rpc.ApiClientHeaderProvider;
import com.google.api.gax.rpc.InvalidArgumentException;
import com.google.api.resourcenames.ResourceName;
import com.google.cloud.bigquery.connection.v1.Connection;
import com.google.cloud.bigquery.connection.v1.ConnectionName;
import com.google.cloud.bigquery.connection.v1.CreateConnectionRequest;
import com.google.cloud.bigquery.connection.v1.DeleteConnectionRequest;
import com.google.cloud.bigquery.connection.v1.GetConnectionRequest;
import com.google.cloud.bigquery.connection.v1.ListConnectionsRequest;
import com.google.cloud.bigquery.connection.v1.ListConnectionsResponse;
import com.google.cloud.bigquery.connection.v1.LocationName;
import com.google.cloud.bigquery.connection.v1.UpdateConnectionRequest;
import com.google.common.collect.Lists;
import com.google.iam.v1.AuditConfig;
import com.google.iam.v1.Binding;
import com.google.iam.v1.GetIamPolicyRequest;
import com.google.iam.v1.GetPolicyOptions;
import com.google.iam.v1.Policy;
import com.google.iam.v1.SetIamPolicyRequest;
import com.google.iam.v1.TestIamPermissionsRequest;
import com.google.iam.v1.TestIamPermissionsResponse;
import com.google.protobuf.AbstractMessage;
import com.google.protobuf.ByteString;
import com.google.protobuf.Empty;
import com.google.protobuf.FieldMask;
import io.grpc.StatusRuntimeException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import javax.annotation.Generated;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

@Generated("by gapic-generator-java")
public class ConnectionServiceClientTest {
  private static MockConnectionService mockConnectionService;
  private static MockServiceHelper mockServiceHelper;
  private LocalChannelProvider channelProvider;
  private ConnectionServiceClient client;

  @BeforeClass
  public static void startStaticServer() {
    mockConnectionService = new MockConnectionService();
    mockServiceHelper =
        new MockServiceHelper(
            UUID.randomUUID().toString(), Arrays.<MockGrpcService>asList(mockConnectionService));
    mockServiceHelper.start();
  }

  @AfterClass
  public static void stopServer() {
    mockServiceHelper.stop();
  }

  @Before
  public void setUp() throws IOException {
    mockServiceHelper.reset();
    channelProvider = mockServiceHelper.createChannelProvider();
    ConnectionServiceSettings settings =
        ConnectionServiceSettings.newBuilder()
            .setTransportChannelProvider(channelProvider)
            .setCredentialsProvider(NoCredentialsProvider.create())
            .build();
    client = ConnectionServiceClient.create(settings);
  }

  @After
  public void tearDown() throws Exception {
    client.close();
  }

  @Test
  public void createConnectionTest() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
    Connection connection = Connection.newBuilder().build();
    String connectionId = "connectionId1923106969";

    Connection actualResponse = client.createConnection(parent, connection, connectionId);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    CreateConnectionRequest actualRequest = ((CreateConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(parent.toString(), actualRequest.getParent());
    Assert.assertEquals(connection, actualRequest.getConnection());
    Assert.assertEquals(connectionId, actualRequest.getConnectionId());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void createConnectionExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
      Connection connection = Connection.newBuilder().build();
      String connectionId = "connectionId1923106969";
      client.createConnection(parent, connection, connectionId);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void createConnectionTest2() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String parent = "parent-995424086";
    Connection connection = Connection.newBuilder().build();
    String connectionId = "connectionId1923106969";

    Connection actualResponse = client.createConnection(parent, connection, connectionId);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    CreateConnectionRequest actualRequest = ((CreateConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(parent, actualRequest.getParent());
    Assert.assertEquals(connection, actualRequest.getConnection());
    Assert.assertEquals(connectionId, actualRequest.getConnectionId());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void createConnectionExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String parent = "parent-995424086";
      Connection connection = Connection.newBuilder().build();
      String connectionId = "connectionId1923106969";
      client.createConnection(parent, connection, connectionId);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void getConnectionTest() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");

    Connection actualResponse = client.getConnection(name);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    GetConnectionRequest actualRequest = ((GetConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name.toString(), actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void getConnectionExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      client.getConnection(name);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void getConnectionTest2() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String name = "name3373707";

    Connection actualResponse = client.getConnection(name);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    GetConnectionRequest actualRequest = ((GetConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name, actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void getConnectionExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String name = "name3373707";
      client.getConnection(name);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void listConnectionsTest() throws Exception {
    Connection responsesElement = Connection.newBuilder().build();
    ListConnectionsResponse expectedResponse =
        ListConnectionsResponse.newBuilder()
            .setNextPageToken("")
            .addAllConnections(Arrays.asList(responsesElement))
            .build();
    mockConnectionService.addResponse(expectedResponse);

    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");

    ListConnectionsPagedResponse pagedListResponse = client.listConnections(parent);

    List<Connection> resources = Lists.newArrayList(pagedListResponse.iterateAll());

    Assert.assertEquals(1, resources.size());
    Assert.assertEquals(expectedResponse.getConnectionsList().get(0), resources.get(0));

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    ListConnectionsRequest actualRequest = ((ListConnectionsRequest) actualRequests.get(0));

    Assert.assertEquals(parent.toString(), actualRequest.getParent());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void listConnectionsExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
      client.listConnections(parent);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void listConnectionsTest2() throws Exception {
    Connection responsesElement = Connection.newBuilder().build();
    ListConnectionsResponse expectedResponse =
        ListConnectionsResponse.newBuilder()
            .setNextPageToken("")
            .addAllConnections(Arrays.asList(responsesElement))
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String parent = "parent-995424086";

    ListConnectionsPagedResponse pagedListResponse = client.listConnections(parent);

    List<Connection> resources = Lists.newArrayList(pagedListResponse.iterateAll());

    Assert.assertEquals(1, resources.size());
    Assert.assertEquals(expectedResponse.getConnectionsList().get(0), resources.get(0));

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    ListConnectionsRequest actualRequest = ((ListConnectionsRequest) actualRequests.get(0));

    Assert.assertEquals(parent, actualRequest.getParent());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void listConnectionsExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String parent = "parent-995424086";
      client.listConnections(parent);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void updateConnectionTest() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
    Connection connection = Connection.newBuilder().build();
    FieldMask updateMask = FieldMask.newBuilder().build();

    Connection actualResponse = client.updateConnection(name, connection, updateMask);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    UpdateConnectionRequest actualRequest = ((UpdateConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name.toString(), actualRequest.getName());
    Assert.assertEquals(connection, actualRequest.getConnection());
    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void updateConnectionExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      Connection connection = Connection.newBuilder().build();
      FieldMask updateMask = FieldMask.newBuilder().build();
      client.updateConnection(name, connection, updateMask);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void updateConnectionTest2() throws Exception {
    Connection expectedResponse =
        Connection.newBuilder()
            .setName(ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]").toString())
            .setFriendlyName("friendlyName461933014")
            .setDescription("description-1724546052")
            .setCreationTime(1932333101)
            .setLastModifiedTime(-671513446)
            .setHasCredential(true)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String name = "name3373707";
    Connection connection = Connection.newBuilder().build();
    FieldMask updateMask = FieldMask.newBuilder().build();

    Connection actualResponse = client.updateConnection(name, connection, updateMask);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    UpdateConnectionRequest actualRequest = ((UpdateConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name, actualRequest.getName());
    Assert.assertEquals(connection, actualRequest.getConnection());
    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void updateConnectionExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String name = "name3373707";
      Connection connection = Connection.newBuilder().build();
      FieldMask updateMask = FieldMask.newBuilder().build();
      client.updateConnection(name, connection, updateMask);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void deleteConnectionTest() throws Exception {
    Empty expectedResponse = Empty.newBuilder().build();
    mockConnectionService.addResponse(expectedResponse);

    ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");

    client.deleteConnection(name);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    DeleteConnectionRequest actualRequest = ((DeleteConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name.toString(), actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void deleteConnectionExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ConnectionName name = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      client.deleteConnection(name);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void deleteConnectionTest2() throws Exception {
    Empty expectedResponse = Empty.newBuilder().build();
    mockConnectionService.addResponse(expectedResponse);

    String name = "name3373707";

    client.deleteConnection(name);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    DeleteConnectionRequest actualRequest = ((DeleteConnectionRequest) actualRequests.get(0));

    Assert.assertEquals(name, actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void deleteConnectionExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String name = "name3373707";
      client.deleteConnection(name);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void getIamPolicyTest() throws Exception {
    Policy expectedResponse =
        Policy.newBuilder()
            .setVersion(351608024)
            .addAllBindings(new ArrayList<Binding>())
            .addAllAuditConfigs(new ArrayList<AuditConfig>())
            .setEtag(ByteString.EMPTY)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
    GetPolicyOptions options = GetPolicyOptions.newBuilder().build();

    Policy actualResponse = client.getIamPolicy(resource, options);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    GetIamPolicyRequest actualRequest = ((GetIamPolicyRequest) actualRequests.get(0));

    Assert.assertEquals(resource.toString(), actualRequest.getResource());
    Assert.assertEquals(options, actualRequest.getOptions());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void getIamPolicyExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      GetPolicyOptions options = GetPolicyOptions.newBuilder().build();
      client.getIamPolicy(resource, options);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void getIamPolicyTest2() throws Exception {
    Policy expectedResponse =
        Policy.newBuilder()
            .setVersion(351608024)
            .addAllBindings(new ArrayList<Binding>())
            .addAllAuditConfigs(new ArrayList<AuditConfig>())
            .setEtag(ByteString.EMPTY)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String resource = "resource-341064690";
    GetPolicyOptions options = GetPolicyOptions.newBuilder().build();

    Policy actualResponse = client.getIamPolicy(resource, options);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    GetIamPolicyRequest actualRequest = ((GetIamPolicyRequest) actualRequests.get(0));

    Assert.assertEquals(resource, actualRequest.getResource());
    Assert.assertEquals(options, actualRequest.getOptions());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void getIamPolicyExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String resource = "resource-341064690";
      GetPolicyOptions options = GetPolicyOptions.newBuilder().build();
      client.getIamPolicy(resource, options);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void setIamPolicyTest() throws Exception {
    Policy expectedResponse =
        Policy.newBuilder()
            .setVersion(351608024)
            .addAllBindings(new ArrayList<Binding>())
            .addAllAuditConfigs(new ArrayList<AuditConfig>())
            .setEtag(ByteString.EMPTY)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
    Policy policy = Policy.newBuilder().build();

    Policy actualResponse = client.setIamPolicy(resource, policy);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    SetIamPolicyRequest actualRequest = ((SetIamPolicyRequest) actualRequests.get(0));

    Assert.assertEquals(resource.toString(), actualRequest.getResource());
    Assert.assertEquals(policy, actualRequest.getPolicy());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void setIamPolicyExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      Policy policy = Policy.newBuilder().build();
      client.setIamPolicy(resource, policy);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void setIamPolicyTest2() throws Exception {
    Policy expectedResponse =
        Policy.newBuilder()
            .setVersion(351608024)
            .addAllBindings(new ArrayList<Binding>())
            .addAllAuditConfigs(new ArrayList<AuditConfig>())
            .setEtag(ByteString.EMPTY)
            .build();
    mockConnectionService.addResponse(expectedResponse);

    String resource = "resource-341064690";
    Policy policy = Policy.newBuilder().build();

    Policy actualResponse = client.setIamPolicy(resource, policy);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    SetIamPolicyRequest actualRequest = ((SetIamPolicyRequest) actualRequests.get(0));

    Assert.assertEquals(resource, actualRequest.getResource());
    Assert.assertEquals(policy, actualRequest.getPolicy());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void setIamPolicyExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String resource = "resource-341064690";
      Policy policy = Policy.newBuilder().build();
      client.setIamPolicy(resource, policy);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void testIamPermissionsTest() throws Exception {
    TestIamPermissionsResponse expectedResponse =
        TestIamPermissionsResponse.newBuilder().addAllPermissions(new ArrayList<String>()).build();
    mockConnectionService.addResponse(expectedResponse);

    ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
    List<String> permissions = new ArrayList<>();

    TestIamPermissionsResponse actualResponse = client.testIamPermissions(resource, permissions);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    TestIamPermissionsRequest actualRequest = ((TestIamPermissionsRequest) actualRequests.get(0));

    Assert.assertEquals(resource.toString(), actualRequest.getResource());
    Assert.assertEquals(permissions, actualRequest.getPermissionsList());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void testIamPermissionsExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      ResourceName resource = ConnectionName.of("[PROJECT]", "[LOCATION]", "[CONNECTION]");
      List<String> permissions = new ArrayList<>();
      client.testIamPermissions(resource, permissions);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void testIamPermissionsTest2() throws Exception {
    TestIamPermissionsResponse expectedResponse =
        TestIamPermissionsResponse.newBuilder().addAllPermissions(new ArrayList<String>()).build();
    mockConnectionService.addResponse(expectedResponse);

    String resource = "resource-341064690";
    List<String> permissions = new ArrayList<>();

    TestIamPermissionsResponse actualResponse = client.testIamPermissions(resource, permissions);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockConnectionService.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    TestIamPermissionsRequest actualRequest = ((TestIamPermissionsRequest) actualRequests.get(0));

    Assert.assertEquals(resource, actualRequest.getResource());
    Assert.assertEquals(permissions, actualRequest.getPermissionsList());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void testIamPermissionsExceptionTest2() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockConnectionService.addException(exception);

    try {
      String resource = "resource-341064690";
      List<String> permissions = new ArrayList<>();
      client.testIamPermissions(resource, permissions);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }
}