test: media_device: Add test for acquire() and release()

The interfaces MediaDevice::{open,close}() are about to be made private,
replace them with a test of MediaDevice::{acquire,release}() instead.
The new test will implicitly tests the open() and close() methods as
they are about to be move inside acquire() and release() which will
remain public.

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

1 files changed, 33 insertions, 0 deletions

diff --git a/test/media_device/media_device_acquire.cpp b/test/media_device/media_device_acquire.cpp
new file mode 100644
index 00000000..d1e3d744
--- /dev/null
+++ b/test/media_device/media_device_acquire.cpp
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ *  media_device_acquire.cpp- Test acquire/release of a MediaDevice
+ */
+
+#include "media_device_test.h"
+
+using namespace libcamera;
+
+class MediaDeviceAcquire : public MediaDeviceTest
+{
+	int run()
+	{
+		if (!media_->acquire())
+			return TestFail;
+
+		if (media_->acquire())
+			return TestFail;
+
+		media_->release();
+
+		if (!media_->acquire())
+			return TestFail;
+
+		media_->release();
+
+		return TestPass;
+	}
+};
+
+TEST_REGISTER(MediaDeviceAcquire);