Package com.spotify.helios.system

Source Code of com.spotify.helios.system.VersionCommandTest

/*
* Copyright (c) 2014 Spotify AB.
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* 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 com.spotify.helios.system;

import com.spotify.helios.common.Json;
import com.spotify.helios.common.protocol.VersionResponse;

import org.junit.Test;

import static com.spotify.helios.common.Version.POM_VERSION;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class VersionCommandTest extends SystemTestBase {

  @Test
  public void testReadableVersion() throws Exception {
    startDefaultMaster();
    final String response = main("version", "-z", masterEndpoint()).toString();
    // instead of testing exact output which would break on formatting changes, match regexp
    // to verify output contains two version numbers (one for client, one for master)
    final String regexp = String.format("(?s).*%s.*%s.*", POM_VERSION, POM_VERSION);
    assertTrue("response does not contain two version numbers - \n" + response,
               response.matches(regexp));
  }

  @Test
  public void testJsonVersion() throws Exception {
    startDefaultMaster();
    final VersionResponse version = getVersion("version", "--json", "-z", masterEndpoint());
    assertEquals("wrong client version", POM_VERSION, version.getClientVersion());
    assertEquals("wrong master version", POM_VERSION, version.getMasterVersion());
  }

  @Test
  public void testVersionWithFailedConnection() throws Exception {
    startDefaultMaster();
    // If we fail to connect to master, we should still get the correct client version, and a nice
    // error message instead of master version. Specify bogus endpoint to make this happen.
    final VersionResponse version = getVersion("version", "--json", "-z", "-1");
    assertEquals("wrong client version", POM_VERSION, version.getClientVersion());
    assertEquals("wrong master version", "Unable to connect to master",
                 version.getMasterVersion());
  }

  @Test
  public void testVersionWithServerError() throws Exception {
    startDefaultMaster();
    // If master returns with an error, we should still get the correct client version, and a
    // nice error message instead of master version. Specify bogus path to make this happen.
    final VersionResponse version =
        getVersion("version", "--json", "-z", masterEndpoint() + "/badPath");
    assertEquals("wrong client version", POM_VERSION, version.getClientVersion());
    assertEquals("wrong master version", "Master replied with error code 404",
                 version.getMasterVersion());
  }

  private VersionResponse getVersion(String... args) throws Exception {
    final String response = main(args).toString();
    return Json.read(response, VersionResponse.class);
  }
}
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