/**
* 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 org.apache.whirr.cli.command;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.util.Collections;
import java.util.Map;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.whirr.Cluster;
import org.apache.whirr.ClusterController;
import org.apache.whirr.ClusterControllerFactory;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.InstanceTemplate;
import org.apache.whirr.util.KeyPair;
import org.hamcrest.Matcher;
import org.junit.Before;
import org.junit.Test;
import org.junit.internal.matchers.StringContains;
public class LaunchClusterCommandTest {
private ByteArrayOutputStream outBytes;
private PrintStream out;
private ByteArrayOutputStream errBytes;
private PrintStream err;
@Before
public void setUp() {
outBytes = new ByteArrayOutputStream();
out = new PrintStream(outBytes);
errBytes = new ByteArrayOutputStream();
err = new PrintStream(errBytes);
}
@Test
public void testInsufficientArgs() throws Exception {
LaunchClusterCommand command = new LaunchClusterCommand();
int rc = command.run(null, null, err, Collections.<String>emptyList());
assertThat(rc, is(-1));
assertThat(errBytes.toString(), containsUsageString());
}
private Matcher<String> containsUsageString() {
return StringContains.containsString("Usage: whirr launch-cluster [OPTIONS]");
}
@Test
public void testAllOptions() throws Exception {
ClusterControllerFactory factory = mock(ClusterControllerFactory.class);
ClusterController controller = mock(ClusterController.class);
Cluster cluster = mock(Cluster.class);
when(factory.create((String) any())).thenReturn(controller);
when(controller.launchCluster((ClusterSpec) any())).thenReturn(cluster);
LaunchClusterCommand command = new LaunchClusterCommand(factory);
Map<String, File> keys = KeyPair.generateTemporaryFiles();
int rc = command.run(null, out, null, Lists.newArrayList(
"--service-name", "test-service",
"--cluster-name", "test-cluster",
"--instance-templates", "1 role1+role2,2 role3",
"--provider", "rackspace",
"--identity", "myusername", "--credential", "mypassword",
"--private-key-file", keys.get("private").getAbsolutePath(),
"--version", "version-string"
));
assertThat(rc, is(0));
Configuration conf = new PropertiesConfiguration();
conf.addProperty("whirr.version", "version-string");
ClusterSpec expectedClusterSpec = ClusterSpec.withTemporaryKeys(conf);
expectedClusterSpec.setInstanceTemplates(Lists.newArrayList(
new InstanceTemplate(1, ImmutableSet.of("role1", "role2")),
new InstanceTemplate(2, ImmutableSet.of("role3"))
));
expectedClusterSpec.setServiceName("test-service");
expectedClusterSpec.setProvider("rackspace");
expectedClusterSpec.setIdentity("myusername");
expectedClusterSpec.setCredential("mypassword");
expectedClusterSpec.setClusterName("test-cluster");
expectedClusterSpec.setPrivateKey(keys.get("private"));
expectedClusterSpec.setPublicKey(keys.get("public"));
verify(factory).create("test-service");
verify(controller).launchCluster(expectedClusterSpec);
assertThat(outBytes.toString(), containsString("Started cluster of 0 instances"));
}
@Test
public void testMaxPercentFailure() throws Exception {
ClusterControllerFactory factory = mock(ClusterControllerFactory.class);
ClusterController controller = mock(ClusterController.class);
Cluster cluster = mock(Cluster.class);
when(factory.create((String) any())).thenReturn(controller);
when(controller.launchCluster((ClusterSpec) any())).thenReturn(cluster);
LaunchClusterCommand command = new LaunchClusterCommand(factory);
Map<String, File> keys = KeyPair.generateTemporaryFiles();
int rc = command.run(null, out, null, Lists.newArrayList(
"--service-name", "hadoop",
"--cluster-name", "test-cluster",
"--instance-templates", "1 jt+nn,3 dn+tt",
"--instance-templates-max-percent-failures", "60 dn+tt",
"--provider", "ec2",
"--identity", "myusername", "--credential", "mypassword",
"--private-key-file", keys.get("private").getAbsolutePath(),
"--version", "version-string"
));
assertThat(rc, is(0));
Configuration conf = new PropertiesConfiguration();
conf.addProperty("whirr.version", "version-string");
conf.addProperty("whirr.instance-templates-max-percent-failure", "60 dn+tt");
ClusterSpec expectedClusterSpec = ClusterSpec.withTemporaryKeys(conf);
expectedClusterSpec.setInstanceTemplates(Lists.newArrayList(
new InstanceTemplate(1, 1, Sets.newHashSet("jt", "nn")),
new InstanceTemplate(3, 2, Sets.newHashSet("dn", "tt"))
));
expectedClusterSpec.setServiceName("hadoop");
expectedClusterSpec.setProvider("ec2");
expectedClusterSpec.setIdentity("myusername");
expectedClusterSpec.setCredential("mypassword");
expectedClusterSpec.setClusterName("test-cluster");
expectedClusterSpec.setPrivateKey(keys.get("private"));
expectedClusterSpec.setPublicKey(keys.get("public"));
verify(factory).create("hadoop");
verify(controller).launchCluster(expectedClusterSpec);
assertThat(outBytes.toString(), containsString("Started cluster of 0 instances"));
}
}