test: Add Object class thread affinity test

The test verifies thread affinity and thread move notifications.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

test/meson.build

@@ -24,6 +24,7 @@ public_tests = [
 internal_tests = [
     ['camera-sensor',                   'camera-sensor.cpp'],
     ['message',                         'message.cpp'],
+    ['object',                          'object.cpp'],
     ['object-invoke',                   'object-invoke.cpp'],
     ['signal-threads',                  'signal-threads.cpp'],
     ['threads',                         'threads.cpp'],

test/object.cpp

@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * object.cpp - Object tests
+ */
+
+#include <iostream>
+
+#include <libcamera/object.h>
+
+#include "message.h"
+#include "thread.h"
+
+#include "test.h"
+
+using namespace std;
+using namespace libcamera;
+
+class InstrumentedObject : public Object
+{
+public:
+	enum Status {
+		NoMessage,
+		MessageReceived,
+	};
+
+	InstrumentedObject()
+		: status_(NoMessage)
+	{
+	}
+
+	Status status() const { return status_; }
+	void reset() { status_ = NoMessage; }
+
+protected:
+	void message(Message *msg) override
+	{
+		if (msg->type() == Message::ThreadMoveMessage)
+			status_ = MessageReceived;
+
+		Object::message(msg);
+	}
+
+private:
+	Status status_;
+};
+
+class ObjectTest : public Test
+{
+protected:
+	int init()
+	{
+		a_ = new InstrumentedObject();
+		return TestPass;
+	}
+
+	int run()
+	{
+		/* Verify that moving an object to a different thread succeeds. */
+		a_->moveToThread(&thread_);
+
+		if (a_->thread() != &thread_ || a_->thread() == Thread::current()) {
+			cout << "Failed to move object to thread" << endl;
+			return TestFail;
+		}
+
+		/* Verify that objects receive a ThreadMoveMessage when moved. */
+		if (a_->status() != InstrumentedObject::MessageReceived) {
+			cout << "Moving object didn't deliver ThreadMoveMessage" << endl;
+			return TestFail;
+		}
+
+		return TestPass;
+	}
+
+	void cleanup()
+	{
+		delete a_;
+	}
+
+private:
+	InstrumentedObject *a_;
+
+	Thread thread_;
+};
+
+TEST_REGISTER(ObjectTest)