pinging emulator after each test for debugging

Author: jainsahab

google-cloud-datastore/src/main/java/com/google/cloud/datastore/testing/LocalDatastoreHelper.java

@@ -25,6 +25,10 @@
 import com.google.cloud.testing.BaseEmulatorHelper;
 import com.google.common.collect.ImmutableList;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.nio.file.FileVisitResult;
@@ -38,6 +42,8 @@
 import java.util.UUID;
 import java.util.concurrent.TimeoutException;
 import java.util.logging.Logger;
+
+import com.google.common.io.CharStreams;
 import org.threeten.bp.Duration;
 
 /**
@@ -95,6 +101,24 @@ public class LocalDatastoreHelper extends BaseEmulatorHelper<DatastoreOptions> {
           .setCredentials(NoCredentials.getInstance())
           .setRetrySettings(ServiceOptions.getNoRetrySettings());
 
+  String sendGetRequest(String request) throws IOException {
+    URL url = new URL("http", DEFAULT_HOST, this.getPort(), request);
+    HttpURLConnection con = (HttpURLConnection) url.openConnection();
+    con.setRequestMethod("GET");
+
+    InputStream in = con.getInputStream();
+    String response = CharStreams.toString(new InputStreamReader(con.getInputStream()));
+    in.close();
+    return response;
+  }
+  public String checkHealth() {
+    try {
+      return sendGetRequest("/");
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
   /** A builder for {@code LocalDatastoreHelper} objects. */
   public static class Builder {
     private double consistency;

google-cloud-datastore/src/test/java/com/google/cloud/datastore/DatastoreTest.java

@@ -175,6 +175,7 @@ public static void beforeClass() throws IOException, InterruptedException {
 
   @Before
   public void setUp() {
+    System.out.println(helper.checkHealth());;
     rpcFactoryMock = EasyMock.createStrictMock(DatastoreRpcFactory.class);
     rpcMock = EasyMock.createStrictMock(DatastoreRpc.class);
     rpcMockOptions =