google-nomulus/javatests/com/google/domain/registry/export/UpdateSnapshotViewServletTest.java

// Copyright 2016 Google Inc. 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.

package com.google.domain.registry.export;

import static com.google.common.truth.Truth.assertThat;
import static com.google.domain.registry.testing.TaskQueueHelper.assertTasksEnqueued;
import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
import static javax.servlet.http.HttpServletResponse.SC_OK;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyString;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.services.bigquery.Bigquery;
import com.google.api.services.bigquery.model.Dataset;
import com.google.api.services.bigquery.model.Table;
import com.google.appengine.api.taskqueue.QueueFactory;
import com.google.domain.registry.bigquery.BigqueryFactory;
import com.google.domain.registry.config.TestRegistryConfig;
import com.google.domain.registry.testing.AppEngineRule;
import com.google.domain.registry.testing.InjectRule;
import com.google.domain.registry.testing.RegistryConfigRule;
import com.google.domain.registry.testing.TaskQueueHelper.TaskMatcher;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import java.io.PrintWriter;
import java.io.StringWriter;

import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/** Unit tests for {@link UpdateSnapshotViewServlet}. */
@RunWith(MockitoJUnitRunner.class)
public class UpdateSnapshotViewServletTest {

  @Rule
  public final InjectRule inject = new InjectRule();

  @Rule
  public final AppEngineRule appEngine = AppEngineRule.builder()
      .withTaskQueue()
      .build();

  @Rule
  public final RegistryConfigRule configRule = new RegistryConfigRule(new TestRegistryConfig() {
    @Override public String getProjectId() {
      return "Project-Id";
    }

    @Override public String getLatestSnapshotDataset() {
      return "testdataset";
    }
  });

  @Mock
  private HttpServletRequest req;

  @Mock
  private HttpServletResponse rsp;

  @Mock
  private BigqueryFactory bigqueryFactory;

  @Mock
  private Bigquery bigquery;

  @Mock
  private Bigquery.Datasets bigqueryDatasets;

  @Mock
  private Bigquery.Datasets.Insert bigqueryDatasetsInsert;

  @Mock
  private Bigquery.Tables bigqueryTables;

  @Mock
  private Bigquery.Tables.Update bigqueryTablesUpdate;

  private final StringWriter httpOutput = new StringWriter();
  private final UpdateSnapshotViewServlet servlet = new UpdateSnapshotViewServlet();

  @Before
  public void before() throws Exception {
    inject.setStaticField(UpdateSnapshotViewServlet.class, "bigqueryFactory", bigqueryFactory);

    when(req.getMethod()).thenReturn("POST");
    when(rsp.getWriter()).thenReturn(new PrintWriter(httpOutput));

    when(bigqueryFactory.create(
        anyString(),
        any(HttpTransport.class),
        any(JsonFactory.class),
        any(HttpRequestInitializer.class)))
            .thenReturn(bigquery);

    when(bigquery.datasets()).thenReturn(bigqueryDatasets);
    when(bigqueryDatasets.insert(eq("Project-Id"), any(Dataset.class)))
        .thenReturn(bigqueryDatasetsInsert);

    when(bigquery.tables()).thenReturn(bigqueryTables);
    when(bigqueryTables.update(
            eq("Project-Id"), any(String.class), any(String.class), any(Table.class)))
        .thenReturn(bigqueryTablesUpdate);

    servlet.init(mock(ServletConfig.class));
  }

  @Test
  public void testSuccess_createViewUpdateTask() throws Exception {
    QueueFactory.getDefaultQueue().add(
        UpdateSnapshotViewServlet.createViewUpdateTask("some_dataset", "12345_fookind", "fookind"));
    assertTasksEnqueued("default",
        new TaskMatcher()
            .url(UpdateSnapshotViewServlet.PATH)
            .method("POST")
            .param(UpdateSnapshotViewServlet.SNAPSHOT_DATASET_ID_PARAM, "some_dataset")
            .param(UpdateSnapshotViewServlet.SNAPSHOT_TABLE_ID_PARAM, "12345_fookind")
            .param(UpdateSnapshotViewServlet.SNAPSHOT_KIND_PARAM, "fookind"));
  }

  @Test
  public void testSuccess_doPost() throws Exception {
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_DATASET_ID_PARAM))
        .thenReturn("some_dataset");
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_TABLE_ID_PARAM))
        .thenReturn("12345_fookind");
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_KIND_PARAM))
        .thenReturn("fookind");

    servlet.service(req, rsp);

    // Check that we attempted to create the latest_snapshot dataset.
    ArgumentCaptor<Dataset> datasetArgument = ArgumentCaptor.forClass(Dataset.class);
    verify(bigqueryDatasets).insert(eq("Project-Id"), datasetArgument.capture());
    assertThat(datasetArgument.getValue().getDatasetReference().getProjectId())
        .isEqualTo("Project-Id");
    assertThat(datasetArgument.getValue().getDatasetReference().getDatasetId())
        .isEqualTo("testdataset");
    verify(bigqueryDatasetsInsert).execute();

    // Check that we updated the view.
    ArgumentCaptor<Table> tableArg = ArgumentCaptor.forClass(Table.class);
    verify(bigqueryTables).update(
        eq("Project-Id"), eq("testdataset"), eq("fookind"), tableArg.capture());
    assertThat(tableArg.getValue().getView().getQuery())
        .isEqualTo("SELECT * FROM [some_dataset.12345_fookind]");

    verify(rsp).setStatus(SC_OK);
  }

  @Test
  public void testFailure_doPost_missingDatasetIdHeader() throws Exception {
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_TABLE_ID_PARAM))
        .thenReturn("12345_fookind");
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_KIND_PARAM)).thenReturn("fookind");
    servlet.service(req, rsp);
    verify(rsp).sendError(SC_BAD_REQUEST, "Missing required parameter: dataset");
  }

  @Test
  public void testFailure_doPost_missingTableIdHeader() throws Exception {
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_DATASET_ID_PARAM))
        .thenReturn("some_dataset");
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_KIND_PARAM)).thenReturn("fookind");
    servlet.service(req, rsp);
    verify(rsp).sendError(SC_BAD_REQUEST, "Missing required parameter: table");
  }

  @Test
  public void testFailure_doPost_missingKindHeader() throws Exception {
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_DATASET_ID_PARAM))
        .thenReturn("some_dataset");
    when(req.getParameter(UpdateSnapshotViewServlet.SNAPSHOT_TABLE_ID_PARAM))
        .thenReturn("12345_fookind");
    servlet.service(req, rsp);
    verify(rsp).sendError(SC_BAD_REQUEST, "Missing required parameter: kind");
  }
}