3 files changed, 200 insertions, 0 deletions
diff --git a/src/mongo/unittest/SConscript b/src/mongo/unittest/SConscript
index dddde95a386..b28e6a00e71 100644
--- a/src/mongo/unittest/SConscript
+++ b/src/mongo/unittest/SConscript
@@ -47,3 +47,13 @@ env.Library(
         '$BUILD_DIR/mongo/base',
     ],
 )
+
+env.Library(
+    target='task_executor_proxy',
+    source=[
+        'task_executor_proxy.cpp',
+    ],
+    LIBDEPS=[
+        '$BUILD_DIR/mongo/executor/task_executor_interface',
+    ],
+)
diff --git a/src/mongo/unittest/task_executor_proxy.cpp b/src/mongo/unittest/task_executor_proxy.cpp
new file mode 100644
index 00000000000..0168e0a752d
--- /dev/null
+++ b/src/mongo/unittest/task_executor_proxy.cpp
@@ -0,0 +1,113 @@
+/**
+ *    Copyright (C) 2016 MongoDB Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the GNU Affero General Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/unittest/task_executor_proxy.h"
+
+namespace mongo {
+namespace unittest {
+
+TaskExecutorProxy::TaskExecutorProxy(executor::TaskExecutor* executor) : _executor(executor) {}
+
+TaskExecutorProxy::~TaskExecutorProxy() = default;
+
+executor::TaskExecutor* TaskExecutorProxy::getExecutor() const {
+    return _executor;
+}
+
+void TaskExecutorProxy::setExecutor(executor::TaskExecutor* executor) {
+    _executor = executor;
+}
+
+void TaskExecutorProxy::startup() {
+    _executor->startup();
+}
+
+void TaskExecutorProxy::shutdown() {
+    _executor->shutdown();
+}
+
+void TaskExecutorProxy::join() {
+    _executor->join();
+}
+
+std::string TaskExecutorProxy::getDiagnosticString() {
+    return _executor->getDiagnosticString();
+}
+
+Date_t TaskExecutorProxy::now() {
+    return _executor->now();
+}
+
+StatusWith<executor::TaskExecutor::EventHandle> TaskExecutorProxy::makeEvent() {
+    return _executor->makeEvent();
+}
+
+void TaskExecutorProxy::signalEvent(const EventHandle& event) {
+    _executor->signalEvent(event);
+}
+
+StatusWith<executor::TaskExecutor::CallbackHandle> TaskExecutorProxy::onEvent(
+    const EventHandle& event, const CallbackFn& work) {
+    return _executor->onEvent(event, work);
+}
+
+void TaskExecutorProxy::waitForEvent(const EventHandle& event) {
+    _executor->waitForEvent(event);
+}
+
+StatusWith<executor::TaskExecutor::CallbackHandle> TaskExecutorProxy::scheduleWork(
+    const CallbackFn& work) {
+    return _executor->scheduleWork(work);
+}
+
+StatusWith<executor::TaskExecutor::CallbackHandle> TaskExecutorProxy::scheduleWorkAt(
+    Date_t when, const CallbackFn& work) {
+    return _executor->scheduleWorkAt(when, work);
+}
+
+StatusWith<executor::TaskExecutor::CallbackHandle> TaskExecutorProxy::scheduleRemoteCommand(
+    const executor::RemoteCommandRequest& request, const RemoteCommandCallbackFn& cb) {
+    return _executor->scheduleRemoteCommand(request, cb);
+}
+
+void TaskExecutorProxy::cancel(const CallbackHandle& cbHandle) {
+    _executor->cancel(cbHandle);
+}
+
+void TaskExecutorProxy::wait(const CallbackHandle& cbHandle) {
+    _executor->wait(cbHandle);
+}
+
+void TaskExecutorProxy::appendConnectionStats(executor::ConnectionPoolStats* stats) const {
+    _executor->appendConnectionStats(stats);
+}
+
+}  // namespace unittest
+}  // namespace mongo
diff --git a/src/mongo/unittest/task_executor_proxy.h b/src/mongo/unittest/task_executor_proxy.h
new file mode 100644
index 00000000000..f5c9ee63013
--- /dev/null
+++ b/src/mongo/unittest/task_executor_proxy.h
@@ -0,0 +1,77 @@
+/**
+ *    Copyright (C) 2016 MongoDB Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the GNU Affero General Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#pragma once
+
+#include "mongo/base/disallow_copying.h"
+#include "mongo/executor/task_executor.h"
+
+namespace mongo {
+namespace unittest {
+
+/**
+ * Proxy for the executor::TaskExecutor interface used for testing.
+ */
+class TaskExecutorProxy : public executor::TaskExecutor {
+    MONGO_DISALLOW_COPYING(TaskExecutorProxy);
+
+public:
+    /**
+     * Does not own target executor.
+     */
+    TaskExecutorProxy(executor::TaskExecutor* executor);
+    virtual ~TaskExecutorProxy();
+
+    executor::TaskExecutor* getExecutor() const;
+    void setExecutor(executor::TaskExecutor* executor);
+
+    virtual void startup() override;
+    virtual void shutdown() override;
+    virtual void join() override;
+    virtual std::string getDiagnosticString() override;
+    virtual Date_t now() override;
+    virtual StatusWith<EventHandle> makeEvent() override;
+    virtual void signalEvent(const EventHandle& event) override;
+    virtual StatusWith<CallbackHandle> onEvent(const EventHandle& event,
+                                               const CallbackFn& work) override;
+    virtual void waitForEvent(const EventHandle& event) override;
+    virtual StatusWith<CallbackHandle> scheduleWork(const CallbackFn& work) override;
+    virtual StatusWith<CallbackHandle> scheduleWorkAt(Date_t when, const CallbackFn& work) override;
+    virtual StatusWith<CallbackHandle> scheduleRemoteCommand(
+        const executor::RemoteCommandRequest& request, const RemoteCommandCallbackFn& cb) override;
+    virtual void cancel(const CallbackHandle& cbHandle) override;
+    virtual void wait(const CallbackHandle& cbHandle) override;
+    virtual void appendConnectionStats(executor::ConnectionPoolStats* stats) const override;
+
+private:
+    // Not owned by us.
+    executor::TaskExecutor* _executor;
+};
+
+}  // namespace unittest
+}  // namespace mongo