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[TEST] Enforce that the node from ElasticsearchSingleNodeTest is alone in its cluster. 

In particular, this removes the ability to create new node and adds the ability
to get a reference to the single node that the cluster is made of.
This commit is contained in:
Adrien Grand 2014-07-15 17:25:40 +02:00
parent ba443a4819
commit 56cfa8e47e
1 changed files with 21 additions and 13 deletions
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34
src/test/java/org/elasticsearch/test/ElasticsearchSingleNodeTest.java
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@ -41,13 +41,13 @@ import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcke
import static org.hamcrest.Matchers.*;
/**
* A test that keep a single node started for all tests that can be used to get
* A test that keep a singleton node started for all tests that can be used to get
* references to Guice injectors in unit tests.
*/
@Ignore
public abstract class ElasticsearchSingleNodeTest extends ElasticsearchTestCase {
private static final Node node = node();
private static final Node node = newNode();
@After
public void after() {
@ -59,20 +59,12 @@ public abstract class ElasticsearchSingleNodeTest extends ElasticsearchTestCase
metaData.transientSettings().getAsMap().size(), equalTo(0));
}
/**
* Same as {@link #node(Settings) node(ImmutableSettings.EMPTY)}.
*/
private static Node node() {
return node(ImmutableSettings.EMPTY);
}
private static Node node(Settings settings) {
private static Node newNode() {
Node build = NodeBuilder.nodeBuilder().local(true).data(true).settings(ImmutableSettings.builder()
.put(ClusterName.SETTING, ElasticsearchSingleNodeTest.class.getName())
.put("node.name", ElasticsearchSingleNodeTest.class.getName())
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
.put(settings)
.put(EsExecutors.PROCESSORS, 1) // limit the number of threads created
.put("http.enabled", false)
.put("index.store.type", "ram")
@ -83,14 +75,30 @@ public abstract class ElasticsearchSingleNodeTest extends ElasticsearchTestCase
return build;
}
public static <T> T getInstanceFromNode(Class<T> clazz, Node node) {
/**
* Return a reference to the singleton node.
*/
public static Node node() {
return node;
}
/**
* Get an instance for a particular class using the injector of the singleton node.
*/
public static <T> T getInstanceFromNode(Class<T> clazz) {
return ((InternalNode) node).injector().getInstance(clazz);
}
/**
* Create a new index on the singleton node with empty index settings.
*/
public static IndexService createIndex(String index) {
return createIndex(index, ImmutableSettings.EMPTY);
}
/**
* Create a new index on the singleton node with the provided index settings.
*/
public static IndexService createIndex(String index, Settings settings) {
assertAcked(node.client().admin().indices().prepareCreate(index).setSettings(settings).get());
// Wait for the index to be allocated so that cluster state updates don't override
@ -99,7 +107,7 @@ public abstract class ElasticsearchSingleNodeTest extends ElasticsearchTestCase
.health(Requests.clusterHealthRequest(index).waitForYellowStatus().waitForEvents(Priority.LANGUID).waitForRelocatingShards(0)).actionGet();
assertThat(health.getStatus(), lessThanOrEqualTo(ClusterHealthStatus.YELLOW));
assertThat("Cluster must be a single node cluster", health.getNumberOfDataNodes(), equalTo(1));
IndicesService instanceFromNode = getInstanceFromNode(IndicesService.class, node);
IndicesService instanceFromNode = getInstanceFromNode(IndicesService.class);
return instanceFromNode.indexServiceSafe(index);
}