[libcamera-devel,4/6] test: Add Thread test cases

1647 diff mbox series

The Thread test case verifies that

- a Thread instance is created for the main thread
- a new Thread can be created, started, and stopped

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 test/meson.build |  1 +
 test/threads.cpp | 93 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+)
 create mode 100644 test/threads.cpp

Hi Laurent,

Thanks for your test.

On 2019-07-10 22:17:06 +0300, Laurent Pinchart wrote:
> The Thread test case verifies that
> 
> - a Thread instance is created for the main thread
> - a new Thread can be created, started, and stopped
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
>  test/meson.build |  1 +
>  test/threads.cpp | 93 ++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 94 insertions(+)
>  create mode 100644 test/threads.cpp
> 
> diff --git a/test/meson.build b/test/meson.build
> index 41b54ffd358c..bd0e0d98f0e7 100644
> --- a/test/meson.build
> +++ b/test/meson.build
> @@ -21,6 +21,7 @@ public_tests = [
>  
>  internal_tests = [
>      ['camera-sensor',                   'camera-sensor.cpp'],
> +    ['threads',                         'threads.cpp'],
>  ]
>  
>  foreach t : public_tests
> diff --git a/test/threads.cpp b/test/threads.cpp
> new file mode 100644
> index 000000000000..9a2d39dfd106
> --- /dev/null
> +++ b/test/threads.cpp
> @@ -0,0 +1,93 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +/*
> + * Copyright (C) 2019, Google Inc.
> + *
> + * threads.cpp - Threads test
> + */
> +
> +#include <chrono>

I learnt something new today :-)

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

> +#include <iostream>
> +#include <thread>
> +
> +#include "thread.h"
> +#include "test.h"
> +
> +using namespace std;
> +using namespace libcamera;
> +
> +class InstrumentedThread : public Thread
> +{
> +public:
> +	InstrumentedThread(unsigned int iterations)
> +		: iterations_(iterations)
> +	{
> +	}
> +
> +protected:
> +	void run()
> +	{
> +		for (unsigned int i = 0; i < iterations_; ++i) {
> +			this_thread::sleep_for(chrono::milliseconds(50));
> +		}
> +	}
> +
> +private:
> +	unsigned int iterations_;
> +};
> +
> +class ThreadTest : public Test
> +{
> +protected:
> +	int init()
> +	{
> +		return 0;
> +	}
> +
> +	int run()
> +	{
> +		/* Test Thread() retrieval for the main thread. */
> +		Thread *thread = Thread::current();
> +		if (!thread) {
> +			cout << "Thread::current() failed to main thread"
> +			     << endl;
> +			return TestFail;
> +		}
> +
> +		if (!thread->isRunning()) {
> +			cout << "Main thread is not running" << endl;
> +			return TestFail;
> +		}
> +
> +		/* Test starting the main thread, the test shall not crash. */
> +		thread->start();
> +
> +		/* Test the running state of a custom thread. */
> +		thread = new Thread();
> +		thread->start();
> +
> +		if (!thread->isRunning()) {
> +			cout << "Thread is not running after being started"
> +			     << endl;
> +			return TestFail;
> +		}
> +
> +		thread->exit(0);
> +		thread->wait();
> +
> +		if (thread->isRunning()) {
> +			cout << "Thread is still running after finishing"
> +			     << endl;
> +			return TestFail;
> +		}
> +
> +		delete thread;
> +
> +		return TestPass;
> +	}
> +
> +	void cleanup()
> +	{
> +	}
> +};
> +
> +TEST_REGISTER(ThreadTest)
> -- 
> Regards,
> 
> Laurent Pinchart
> 
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