1 files changed, 138 insertions, 0 deletions
diff --git a/core/src/test/java/org/elasticsearch/common/util/concurrent/ThreadContextTests.java b/core/src/test/java/org/elasticsearch/common/util/concurrent/ThreadContextTests.java
new file mode 100644
index 0000000000..bbe5136f57
--- /dev/null
+++ b/core/src/test/java/org/elasticsearch/common/util/concurrent/ThreadContextTests.java
@@ -0,0 +1,138 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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.elasticsearch.common.util.concurrent;
+
+import org.elasticsearch.common.io.stream.BytesStreamOutput;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.test.ESTestCase;
+
+import java.io.IOException;
+import java.util.Collections;
+
+public class ThreadContextTests extends ESTestCase {
+
+    public void testStashContext() {
+        Settings build = Settings.builder().put("request.headers.default", "1").build();
+        ThreadContext threadContext = new ThreadContext(build);
+        threadContext.putHeader("foo", "bar");
+        threadContext.putTransient("ctx.foo", new Integer(1));
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+        try (ThreadContext.StoredContext ctx = threadContext.stashContext()) {
+            assertNull(threadContext.getHeader("foo"));
+            assertNull(threadContext.getTransient("ctx.foo"));
+            assertEquals("1", threadContext.getHeader("default"));
+        }
+
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+    }
+
+    public void testStoreContext() {
+        Settings build = Settings.builder().put("request.headers.default", "1").build();
+        ThreadContext threadContext = new ThreadContext(build);
+        threadContext.putHeader("foo", "bar");
+        threadContext.putTransient("ctx.foo", new Integer(1));
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+        ThreadContext.StoredContext storedContext = threadContext.newStoredContext();
+        threadContext.putHeader("foo.bar", "baz");
+        try (ThreadContext.StoredContext ctx = threadContext.stashContext()) {
+            assertNull(threadContext.getHeader("foo"));
+            assertNull(threadContext.getTransient("ctx.foo"));
+            assertEquals("1", threadContext.getHeader("default"));
+        }
+
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+        assertEquals("baz", threadContext.getHeader("foo.bar"));
+        if (randomBoolean()) {
+            storedContext.restore();
+        } else {
+            storedContext.close();
+        }
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+        assertNull(threadContext.getHeader("foo.bar"));
+    }
+
+    public void testCopyHeaders() {
+        Settings build = Settings.builder().put("request.headers.default", "1").build();
+        ThreadContext threadContext = new ThreadContext(build);
+        threadContext.copyHeaders(Collections.<String,String>emptyMap().entrySet());
+        threadContext.copyHeaders(Collections.<String,String>singletonMap("foo", "bar").entrySet());
+        assertEquals("bar", threadContext.getHeader("foo"));
+    }
+
+    public void testAccessClosed() throws IOException {
+        Settings build = Settings.builder().put("request.headers.default", "1").build();
+        ThreadContext threadContext = new ThreadContext(build);
+        threadContext.putHeader("foo", "bar");
+        threadContext.putTransient("ctx.foo", new Integer(1));
+
+        threadContext.close();
+        try {
+            threadContext.getHeader("foo");
+            fail();
+        } catch (IllegalStateException ise) {
+            assertEquals("threadcontext is already closed", ise.getMessage());
+        }
+
+        try {
+            threadContext.putTransient("foo", new Object());
+            fail();
+        } catch (IllegalStateException ise) {
+            assertEquals("threadcontext is already closed", ise.getMessage());
+        }
+
+        try {
+            threadContext.putHeader("boom", "boom");
+            fail();
+        } catch (IllegalStateException ise) {
+            assertEquals("threadcontext is already closed", ise.getMessage());
+        }
+    }
+
+    public void testSerialize() throws IOException {
+        Settings build = Settings.builder().put("request.headers.default", "1").build();
+        ThreadContext threadContext = new ThreadContext(build);
+        threadContext.putHeader("foo", "bar");
+        threadContext.putTransient("ctx.foo", new Integer(1));
+        BytesStreamOutput out = new BytesStreamOutput();
+        threadContext.writeTo(out);
+        try (ThreadContext.StoredContext ctx = threadContext.stashContext()) {
+            assertNull(threadContext.getHeader("foo"));
+            assertNull(threadContext.getTransient("ctx.foo"));
+            assertEquals("1", threadContext.getHeader("default"));
+
+            threadContext.readHeaders(StreamInput.wrap(out.bytes()));
+            assertEquals("bar", threadContext.getHeader("foo"));
+            assertNull(threadContext.getTransient("ctx.foo"));
+        }
+        assertEquals("bar", threadContext.getHeader("foo"));
+        assertEquals(new Integer(1), threadContext.getTransient("ctx.foo"));
+        assertEquals("1", threadContext.getHeader("default"));
+    }
+}