From 2843f951d5d9504f403c20e383f1d2bf69cc309e Mon Sep 17 00:00:00 2001
From: Kieran Bingham <kieran.bingham@ideasonboard.com>
Date: Thu, 24 Jan 2019 17:37:30 +0000
Subject: test: v4l2_device: Add request_buffers test
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Add a utility to the test suite to request and allocate buffers from
a V4L2Device to ensure it functions correctly.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
---
 test/v4l2_device/meson.build         |  1 +
 test/v4l2_device/request_buffers.cpp | 32 ++++++++++++++++++++++++++++++++
 test/v4l2_device/v4l2_device_test.h  |  7 ++++++-
 3 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 test/v4l2_device/request_buffers.cpp

diff --git a/test/v4l2_device/meson.build b/test/v4l2_device/meson.build
index 41675a30..b6b67261 100644
--- a/test/v4l2_device/meson.build
+++ b/test/v4l2_device/meson.build
@@ -2,6 +2,7 @@
 # They are not alphabetically sorted.
 v4l2_device_tests = [
   [ 'double_open',        'double_open.cpp' ],
+  [ 'request_buffers',    'request_buffers.cpp' ],
 ]
 
 foreach t : v4l2_device_tests
diff --git a/test/v4l2_device/request_buffers.cpp b/test/v4l2_device/request_buffers.cpp
new file mode 100644
index 00000000..bc6ff2c1
--- /dev/null
+++ b/test/v4l2_device/request_buffers.cpp
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * libcamera V4L2 API tests
+ */
+
+#include "v4l2_device_test.h"
+
+class RequestBuffersTest : public V4L2DeviceTest
+{
+protected:
+	int run()
+	{
+		/*
+		 * TODO:
+		 *  Test invalid requests
+		 *  Test different buffer allocations
+		 */
+		const unsigned int bufferCount = 8;
+
+		createBuffers(bufferCount);
+
+		int ret = dev_->exportBuffers(bufferCount, &pool_);
+		if (ret)
+			return TestFail;
+
+		return TestPass;
+	}
+};
+
+TEST_REGISTER(RequestBuffersTest);
diff --git a/test/v4l2_device/v4l2_device_test.h b/test/v4l2_device/v4l2_device_test.h
index ca231ab4..f22f0bb5 100644
--- a/test/v4l2_device/v4l2_device_test.h
+++ b/test/v4l2_device/v4l2_device_test.h
@@ -9,6 +9,8 @@
 
 #include <memory>
 
+#include <libcamera/buffer.h>
+
 #include "test.h"
 
 #include "device_enumerator.h"
@@ -20,7 +22,9 @@ using namespace libcamera;
 class V4L2DeviceTest : public Test
 {
 public:
-	V4L2DeviceTest() : dev_(nullptr) { };
+	V4L2DeviceTest() : dev_(nullptr){};
+
+	void createBuffers(unsigned int qty) { pool_.createBuffers(qty); }
 
 protected:
 	int init();
@@ -29,6 +33,7 @@ protected:
 	std::unique_ptr<DeviceEnumerator> enumerator_;
 	std::shared_ptr<MediaDevice> media_;
 	V4L2Device *dev_;
+	BufferPool pool_;
 };
 
 #endif /* __LIBCAMERA_V4L2_DEVICE_TEST_H_ */
-- 
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