1 files changed, 55 insertions, 0 deletions
diff --git a/resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnProxyRedirectFilterSuite.scala b/resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnProxyRedirectFilterSuite.scala
new file mode 100644
index 0000000000..54dbe9d50a
--- /dev/null
+++ b/resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnProxyRedirectFilterSuite.scala
@@ -0,0 +1,55 @@
+/*
+ * 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.spark.deploy.yarn
+
+import java.io.{PrintWriter, StringWriter}
+import javax.servlet.FilterChain
+import javax.servlet.http.{Cookie, HttpServletRequest, HttpServletResponse}
+
+import org.mockito.Mockito._
+
+import org.apache.spark.SparkFunSuite
+
+class YarnProxyRedirectFilterSuite extends SparkFunSuite {
+
+  test("redirect proxied requests, pass-through others") {
+    val requestURL = "http://example.com:1234/foo?"
+    val filter = new YarnProxyRedirectFilter()
+    val cookies = Array(new Cookie(YarnProxyRedirectFilter.COOKIE_NAME, "dr.who"))
+
+    val req = mock(classOf[HttpServletRequest])
+
+    // First request mocks a YARN proxy request (with the cookie set), second one has no cookies.
+    when(req.getCookies()).thenReturn(cookies, null)
+    when(req.getRequestURL()).thenReturn(new StringBuffer(requestURL))
+
+    val res = mock(classOf[HttpServletResponse])
+    when(res.getWriter()).thenReturn(new PrintWriter(new StringWriter()))
+
+    val chain = mock(classOf[FilterChain])
+
+    // First request is proxied.
+    filter.doFilter(req, res, chain)
+    verify(chain, never()).doFilter(req, res)
+
+    // Second request is not, so should invoke the filter chain.
+    filter.doFilter(req, res, chain)
+    verify(chain, times(1)).doFilter(req, res)
+  }
+
+}