1 files changed, 54 insertions, 0 deletions
diff --git a/vespaclient-container-plugin/src/test/java/com/yahoo/document/restapi/resource/RestApiMaxThreadTest.java b/vespaclient-container-plugin/src/test/java/com/yahoo/document/restapi/resource/RestApiMaxThreadTest.java
new file mode 100644
index 00000000000..17a36c142ea
--- /dev/null
+++ b/vespaclient-container-plugin/src/test/java/com/yahoo/document/restapi/resource/RestApiMaxThreadTest.java
@@ -0,0 +1,54 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.document.restapi.resource;
+
+import com.yahoo.container.jdisc.HttpRequest;
+import com.yahoo.container.jdisc.HttpResponse;
+import com.yahoo.document.restapi.OperationHandler;
+import org.junit.Test;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Executor;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.mock;
+
+public class RestApiMaxThreadTest {
+    final CountDownLatch latch = new CountDownLatch(1);
+    final AtomicInteger requestsInFlight = new AtomicInteger(0);
+    private  class RestApiMocked extends RestApi {
+
+        public RestApiMocked() {
+            super(mock(Executor.class), null, (OperationHandler)null);
+        }
+
+        @Override
+        protected HttpResponse handleInternal(HttpRequest request) {
+            requestsInFlight.incrementAndGet();
+            try {
+                latch.await();
+            } catch (InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+            return null;
+        }
+    }
+
+    @Test
+    public void testCallsAreThrottled() throws InterruptedException {
+        RestApiMocked restApiMocked = new RestApiMocked();
+        // Fire lots of requests.
+        for (int x = 0; x < 30; x++) {
+            new Thread(() -> restApiMocked.handle(null)).start();
+        }
+        // Wait for all threads to be used
+        while (requestsInFlight.get() != 19) {
+            Thread.sleep(1);
+        }
+        // A new request should be blocked.
+        final HttpResponse response = restApiMocked.handle(null);
+        assertThat(response.getStatus(), is(429));
+        latch.countDown();
+    }
+}