/**
* 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 com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import org.apache.whirr.Cluster;
import org.apache.whirr.ClusterController;
import org.apache.whirr.ClusterControllerFactory;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.state.ClusterStateStore;
import org.apache.whirr.state.ClusterStateStoreFactory;
import org.apache.whirr.state.MemoryClusterStateStore;
import org.apache.whirr.util.KeyPair;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.domain.Credentials;
import org.jclouds.scriptbuilder.domain.Statement;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.util.Map;
import java.util.Set;
import static com.google.common.base.Preconditions.checkArgument;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
import static org.jclouds.compute.predicates.NodePredicates.withIds;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class RunScriptCommandTest {
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 testScriptPathIsMandatory() throws Exception {
RunScriptCommand command = new RunScriptCommand();
int rc = command.run(null, out, err, Lists.<String>newArrayList());
assertThat(rc, is(-1));
assertThat(errBytes.toString(),
containsString("Please specify a script file to be executed."));
}
@Test
public void testRunScriptByInstanceId() throws Exception {
ClusterControllerFactory factory = mock(ClusterControllerFactory.class);
ClusterController controller = mock(ClusterController.class);
when(factory.create((String)any())).thenReturn(controller);
RunScriptCommand command = new RunScriptCommand(factory);
Map<String, File> keys = KeyPair.generateTemporaryFiles();
int rc = command.run(null, out, System.err, Lists.newArrayList(
"--script", "/dev/null",
"--instance-templates", "1 noop",
"--instances", "A,B",
"--cluster-name", "test-cluster",
"--provider", "provider",
"--identity", "myusername", "--credential", "mypassword",
"--private-key-file", keys.get("private").getAbsolutePath()
));
assertThat(rc, is(0));
ArgumentCaptor<Predicate> predicate = ArgumentCaptor.forClass(Predicate.class);
verify(controller).runScriptOnNodesMatching(
(ClusterSpec)any(), predicate.capture(), (Statement) any());
// check predicate equality by using the object string representation
Predicate<NodeMetadata> expected = Predicates.and(
Predicates.<NodeMetadata>alwaysTrue(), withIds("A", "B"));
assertThat(predicate.getValue().toString(), is(expected.toString()));
}
@Test
public void testRunScriptByRole() throws Exception {
ClusterControllerFactory factory = mock(ClusterControllerFactory.class);
ClusterController controller = mock(ClusterController.class);
when(factory.create((String)any())).thenReturn(controller);
ClusterStateStore memStore = new MemoryClusterStateStore();
memStore.save(createTestCluster(
new String[]{"reg/A", "reg/B"}, new String[]{"A", "B"}));
ClusterStateStoreFactory stateStoreFactory = mock(ClusterStateStoreFactory.class);
when(stateStoreFactory.create((ClusterSpec) any())).thenReturn(memStore);
RunScriptCommand command = new RunScriptCommand(factory, stateStoreFactory);
Map<String, File> keys = KeyPair.generateTemporaryFiles();
int rc = command.run(null, out, System.err, Lists.newArrayList(
"--instance-templates", "1 noop",
"--script", "/dev/null",
"--roles", "A",
"--cluster-name", "test-cluster",
"--provider", "provider",
"--identity", "myusername", "--credential", "mypassword",
"--private-key-file", keys.get("private").getAbsolutePath()
));
assertThat(rc, is(0));
ArgumentCaptor<Predicate> predicate = ArgumentCaptor.forClass(Predicate.class);
verify(controller).runScriptOnNodesMatching(
(ClusterSpec)any(), predicate.capture(), (Statement) any());
// check predicate equality by using the object string representation
Predicate<NodeMetadata> expected = Predicates.and(
Predicates.<NodeMetadata>alwaysTrue(), withIds("reg/A"));
assertThat(predicate.getValue().toString(), is(expected.toString()));
}
private Cluster createTestCluster(String[] ids, String[] roles) {
checkArgument(ids.length == roles.length, "each ID should have a role");
Credentials credentials = new Credentials("dummy", "dummy");
Set<Cluster.Instance> instances = Sets.newHashSet();
for(int i = 0; i < ids.length; i++) {
String ip = "127.0.0." + (i + 1);
instances.add(new Cluster.Instance(credentials,
Sets.newHashSet(roles[i]), ip, ip, ids[i], null));
}
return new Cluster(instances);
}
}