apps: lc-compliance: Test for mandatory controls

Test for mandatory controls and properties to be supported by
a Camera.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

2 files changed, 99 insertions, 0 deletions

diff --git a/src/apps/lc-compliance/meson.build b/src/apps/lc-compliance/meson.build
index ae8c6f4d..c927dd12 100644
--- a/src/apps/lc-compliance/meson.build
+++ b/src/apps/lc-compliance/meson.build
@@ -15,6 +15,7 @@ lc_compliance_sources = files([
     'helpers/capture.cpp',
     'main.cpp',
     'tests/capture_test.cpp',
+    'tests/controls_test.cpp'
 ])
 
 lc_compliance_includes = ([
diff --git a/src/apps/lc-compliance/tests/controls_test.cpp b/src/apps/lc-compliance/tests/controls_test.cpp
new file mode 100644
index 00000000..e9bdf6fd
--- /dev/null
+++ b/src/apps/lc-compliance/tests/controls_test.cpp
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2023, Ideas On Board Oy
+ *
+ * controls_test.cpp - Test controls and properties
+ */
+
+#include <array>
+#include <iostream>
+
+#include <libcamera/control_ids.h>
+#include <libcamera/controls.h>
+#include <libcamera/property_ids.h>
+
+#include <gtest/gtest.h>
+
+#include "environment.h"
+
+using namespace libcamera;
+
+std::array<const ControlIdMap *, 2> controlMaps = {
+	&controls::controls,
+	&properties::properties,
+};
+
+class ControlTest : public testing::TestWithParam<const ControlIdMap *>
+{
+public:
+	static std::string nameParameters(const testing::TestParamInfo<ControlTest::ParamType> &info);
+
+protected:
+	void SetUp() override;
+	void TearDown() override;
+
+	std::shared_ptr<Camera> camera_;
+};
+
+void ControlTest::SetUp()
+{
+	Environment *env = Environment::get();
+
+	camera_ = env->cm()->get(env->cameraId());
+
+	ASSERT_EQ(camera_->acquire(), 0);
+}
+
+void ControlTest::TearDown()
+{
+	if (!camera_)
+		return;
+
+	camera_->release();
+	camera_.reset();
+}
+
+std::string ControlTest::nameParameters(const testing::TestParamInfo<ControlTest::ParamType> &info)
+{
+	const ControlIdMap *idMap = info.param;
+	if (idMap == &controls::controls)
+		return "controls";
+	else if (idMap == &properties::properties)
+		return "properties";
+
+	return "vendor";
+}
+
+/* Test that mandatory controls and properties are supported by a camera. */
+TEST_P(ControlTest, RequiredControls)
+{
+	auto controlMap = GetParam();
+
+	for (const auto &[id, ctrl] : *controlMap) {
+		if (!ctrl->required())
+			continue;
+
+		if (controlMap == &controls::controls) {
+			const auto it = camera_->controls().find(ctrl);
+
+			if (it == camera_->controls().end())
+				FAIL() << "Mandatory control \"" << ctrl->name()
+				       << "\" not supported" << std::endl;
+		} else if (controlMap == &properties::properties) {
+			bool found = camera_->properties().contains(id);
+
+			if (!found)
+				FAIL() << "Mandatory property \"" << ctrl->name()
+				       << "\" not supported" << std::endl;
+		}
+	}
+}
+
+/*
+ * Use a Value-Parametrized Test case so that vendors can easily test vendor
+ * control lists by expading 'controlMaps'.
+ */
+INSTANTIATE_TEST_SUITE_P(ControlsTest, ControlTest,
+			 testing::ValuesIn(controlMaps),
+			 ControlTest::nameParameters);