Tests: add tests for lcameraDev, fix qutex tests

commonLibs/attachmentSupport/CMakeLists.txt

@@ -27,6 +27,7 @@ target_link_libraries(attachmentSupport PUBLIC
 )
 target_link_libraries(attachmentSupport PRIVATE
 	${ATTACHMENT_SUPPORT_URING_LIBRARIES}
+	${OPENCL_LIBRARIES}
 )
 target_link_directories(attachmentSupport PRIVATE
 	${ATTACHMENT_SUPPORT_URING_LIBRARY_DIRS}

commonLibs/lcameraDev/CMakeLists.txt

@@ -90,4 +90,8 @@ if(ENABLE_LIB_lcameraDev)
 			Boost::log
 		)
 	endif()
+
+	if(ENABLE_TESTS)
+		add_subdirectory(tests)
+	endif()
 endif()

commonLibs/lcameraDev/selectorParse.cpp

@@ -6,12 +6,6 @@ namespace lcamera_dev {
 
 namespace {
 
-bool startsWith(const std::string& text, const std::string& prefix)
-{
-	return text.size() >= prefix.size()
-		&& text.compare(0, prefix.size(), prefix) == 0;
-}
-
 SelectorCriterionKind parseCriterionKind(const std::string& prefixToken)
 {
 	if (prefixToken == "lcamera-id") {

commonLibs/lcameraDev/selectorResolve.cpp

@@ -129,6 +129,18 @@ CameraIdentityRecord resolveSelectorAgainstRecords(
 		const CameraIdentityRecord& indexedRecord =
 			records.at(static_cast<size_t>(*indexCriterion));
 
+		bool hasNonIndexCriteria = false;
+		for (const SelectorCriterion& criterion : criteria)
+		{
+			if (criterion.kind != SelectorCriterionKind::Index)
+			{
+				hasNonIndexCriteria = true;
+				break;
+			}
+		}
+
+		if (!hasNonIndexCriteria) { return indexedRecord; }
+
 		auto it = std::find_if(
 			matches.begin(), matches.end(),
 			[&indexedRecord](const CameraIdentityRecord* candidate) {
@@ -141,13 +153,6 @@ CameraIdentityRecord resolveSelectorAgainstRecords(
 				"index: criterion conflicts with other selector clauses");
 		}
 
-		if (matches.size() > 1)
-		{
-			throw std::runtime_error(
-				"Ambiguous deviceSelector: multiple cameras match\n"
-				+ formatCameraListForDiagnostics(records));
-		}
-
 		return indexedRecord;
 	}
 

commonLibs/lcameraDev/tests/CMakeLists.txt

@@ -0,0 +1,22 @@
+add_executable(lcameraDev_unit_tests
+	selectorParse_tests.cpp
+	selectorResolve_tests.cpp
+	cameraIdentity_tests.cpp
+)
+
+target_include_directories(lcameraDev_unit_tests PRIVATE
+	${CMAKE_SOURCE_DIR}/commonLibs/lcameraDev
+	${CMAKE_SOURCE_DIR}/include
+	${CMAKE_BINARY_DIR}/include
+)
+
+target_link_libraries(lcameraDev_unit_tests
+	gtest_main
+	lcameraDev
+	spinscale
+	${Boost_LIBRARIES}
+)
+
+add_dependencies(lcameraDev_unit_tests gtest_main)
+
+add_test(NAME lcameraDev_unit_tests COMMAND lcameraDev_unit_tests)

commonLibs/lcameraDev/tests/cameraIdentity_tests.cpp

@@ -0,0 +1,24 @@
+#include <gtest/gtest.h>
+#include <cameraIdentity.h>
+#include <libcamera/property_ids.h>
+
+namespace lcamera_dev {
+namespace {
+
+TEST(LocationPropertyToLabelTest, MapsKnownLocations)
+{
+	using namespace libcamera::properties;
+
+	EXPECT_EQ(locationPropertyToLabel(CameraLocationFront), "front");
+	EXPECT_EQ(locationPropertyToLabel(CameraLocationBack), "back");
+	EXPECT_EQ(locationPropertyToLabel(CameraLocationExternal), "external");
+}
+
+TEST(LocationPropertyToLabelTest, UnknownLocationReturnsEmptyString)
+{
+	EXPECT_EQ(locationPropertyToLabel(-1), "");
+	EXPECT_EQ(locationPropertyToLabel(99), "");
+}
+
+} // namespace
+} // namespace lcamera_dev

commonLibs/lcameraDev/tests/selectorParse_tests.cpp

@@ -0,0 +1,93 @@
+#include <gtest/gtest.h>
+#include <selectorParse.h>
+#include <stdexcept>
+
+namespace lcamera_dev {
+namespace {
+
+TEST(TrimWhitespaceTest, StripsLeadingAndTrailingWhitespace)
+{
+	EXPECT_EQ(trimWhitespace("  foo bar  "), "foo bar");
+	EXPECT_EQ(trimWhitespace("\t\nvalue\r\n"), "value");
+	EXPECT_EQ(trimWhitespace("no-trim"), "no-trim");
+	EXPECT_EQ(trimWhitespace(""), "");
+}
+
+TEST(ParseDeviceSelectorTest, BareOpaqueIdIsLibcameraId)
+{
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("/base/soc/i2c@1/imx219@10");
+
+	ASSERT_EQ(criteria.size(), 1u);
+	EXPECT_EQ(criteria[0].kind, SelectorCriterionKind::LibcameraId);
+	EXPECT_EQ(criteria[0].value, "/base/soc/i2c@1/imx219@10");
+}
+
+TEST(ParseDeviceSelectorTest, ExplicitLcameraIdPrefix)
+{
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("lcamera-id:foo bar baz");
+
+	ASSERT_EQ(criteria.size(), 1u);
+	EXPECT_EQ(criteria[0].kind, SelectorCriterionKind::LibcameraId);
+	EXPECT_EQ(criteria[0].value, "foo bar baz");
+}
+
+TEST(ParseDeviceSelectorTest, ParsesTypedPrefixes)
+{
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector(
+			"index:0;model:imx219;model-substr:Logi;location:external");
+
+	ASSERT_EQ(criteria.size(), 4u);
+	EXPECT_EQ(criteria[0].kind, SelectorCriterionKind::Index);
+	EXPECT_EQ(criteria[0].value, "0");
+	EXPECT_EQ(criteria[1].kind, SelectorCriterionKind::Model);
+	EXPECT_EQ(criteria[1].value, "imx219");
+	EXPECT_EQ(criteria[2].kind, SelectorCriterionKind::ModelSubstr);
+	EXPECT_EQ(criteria[2].value, "Logi");
+	EXPECT_EQ(criteria[3].kind, SelectorCriterionKind::Location);
+	EXPECT_EQ(criteria[3].value, "external");
+}
+
+TEST(ParseDeviceSelectorTest, EscapedSemicolonInValue)
+{
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("lcamera-id:foo\\;bar;model:aaaa");
+
+	ASSERT_EQ(criteria.size(), 2u);
+	EXPECT_EQ(criteria[0].kind, SelectorCriterionKind::LibcameraId);
+	EXPECT_EQ(criteria[0].value, "foo;bar");
+	EXPECT_EQ(criteria[1].kind, SelectorCriterionKind::Model);
+	EXPECT_EQ(criteria[1].value, "aaaa");
+}
+
+TEST(ParseDeviceSelectorTest, EmptySelectorThrows)
+{
+	EXPECT_THROW(parseDeviceSelector(""), std::runtime_error);
+	EXPECT_THROW(parseDeviceSelector("   "), std::runtime_error);
+}
+
+TEST(ParseDeviceSelectorTest, UnknownPrefixThrows)
+{
+	EXPECT_THROW(
+		parseDeviceSelector("serial:abc"),
+		std::runtime_error);
+}
+
+TEST(ParseDeviceSelectorTest, EmptyClauseThrows)
+{
+	EXPECT_THROW(
+		parseDeviceSelector("model:imx219;;location:front"),
+		std::runtime_error);
+}
+
+TEST(ParseDeviceSelectorTest, EmptyValueThrows)
+{
+	EXPECT_THROW(
+		parseDeviceSelector("model:"),
+		std::runtime_error);
+}
+
+} // namespace
+} // namespace lcamera_dev

commonLibs/lcameraDev/tests/selectorResolve_tests.cpp

@@ -0,0 +1,157 @@
+#include <gtest/gtest.h>
+#include <selectorParse.h>
+#include <selectorResolve.h>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
+namespace lcamera_dev {
+namespace {
+
+static CameraIdentityRecord makeRecord(
+	const std::string& id,
+	const std::string& model = "",
+	const std::string& locationLabel = "")
+{
+	CameraIdentityRecord record;
+	record.id = id;
+	record.model = model;
+	record.locationLabel = locationLabel;
+	return record;
+}
+
+static std::vector<CameraIdentityRecord> sampleRecords()
+{
+	return {
+		makeRecord("/base/cam0", "imx219", "back"),
+		makeRecord("/base/cam1", "Logitech C920", "external"),
+		makeRecord("/base/cam2", "imx219", "front"),
+	};
+}
+
+TEST(FormatCameraListForDiagnosticsTest, ListsIndexedCameras)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::string text = formatCameraListForDiagnostics(records);
+
+	EXPECT_NE(text.find("Known cameras:"), std::string::npos);
+	EXPECT_NE(text.find("[0] id=/base/cam0"), std::string::npos);
+	EXPECT_NE(text.find("model=imx219"), std::string::npos);
+	EXPECT_NE(text.find("location=external"), std::string::npos);
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, MatchesLibcameraId)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("lcamera-id:/base/cam1");
+
+	const CameraIdentityRecord resolved =
+		resolveSelectorAgainstRecords(criteria, records);
+
+	EXPECT_EQ(resolved.id, "/base/cam1");
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, MatchesModelSubstrAndLocation)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("model-substr:Logitech;location:EXTERNAL");
+
+	const CameraIdentityRecord resolved =
+		resolveSelectorAgainstRecords(criteria, records);
+
+	EXPECT_EQ(resolved.id, "/base/cam1");
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, IndexSelectsNthCamera)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("index:2");
+
+	const CameraIdentityRecord resolved =
+		resolveSelectorAgainstRecords(criteria, records);
+
+	EXPECT_EQ(resolved.id, "/base/cam2");
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, IndexCombinedWithModel)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("index:0;model:imx219");
+
+	const CameraIdentityRecord resolved =
+		resolveSelectorAgainstRecords(criteria, records);
+
+	EXPECT_EQ(resolved.id, "/base/cam0");
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, ZeroMatchesThrowsWithDiagnostics)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("model:does-not-exist");
+
+	try {
+		resolveSelectorAgainstRecords(criteria, records);
+		FAIL() << "Expected std::runtime_error";
+	}
+	catch (const std::runtime_error& exc)
+	{
+		EXPECT_NE(
+			std::string(exc.what()).find("No camera matches deviceSelector"),
+			std::string::npos);
+		EXPECT_NE(
+			std::string(exc.what()).find("Known cameras:"),
+			std::string::npos);
+	}
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, AmbiguousSelectorThrows)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("model:imx219");
+
+	EXPECT_THROW(
+		resolveSelectorAgainstRecords(criteria, records),
+		std::runtime_error);
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, IndexOutOfRangeThrows)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("index:9");
+
+	EXPECT_THROW(
+		resolveSelectorAgainstRecords(criteria, records),
+		std::runtime_error);
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, IndexConflictsWithOtherClauses)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("index:0;location:front");
+
+	EXPECT_THROW(
+		resolveSelectorAgainstRecords(criteria, records),
+		std::runtime_error);
+}
+
+TEST(ResolveSelectorAgainstRecordsTest, InvalidIndexValueThrows)
+{
+	const std::vector<CameraIdentityRecord> records = sampleRecords();
+	const std::vector<SelectorCriterion> criteria =
+		parseDeviceSelector("index:not-a-number");
+
+	EXPECT_THROW(
+		resolveSelectorAgainstRecords(criteria, records),
+		std::runtime_error);
+}
+
+} // namespace
+} // namespace lcamera_dev

tests/smocore/qutex_tests.cpp

@@ -2,6 +2,7 @@
 #include <spinscale/cps/qutex.h>
 #include <spinscale/cps/lockerAndInvokerBase.h>
 #include <memory>
+#include <stdexcept>
 #include <thread>
 #include <chrono>
 #include <vector>
@@ -15,19 +16,48 @@ public:
         : sscl::cps::LockerAndInvokerBase(addr), awakened(false) {}
 
     bool awakened;
-    sscl::cps::Qutex* registeredQutex = nullptr;
+    mutable sscl::cps::Qutex* registeredQutex = nullptr;
-    sscl::cps::LockerAndInvokerBase::List::iterator queueIterator;
+    mutable sscl::cps::LockerAndInvokerBase::List::iterator queueIterator;
 
-    sscl::cps::LockerAndInvokerBase::List::iterator getLockvokerIteratorForQutex(sscl::cps::Qutex& qutex) override {
+    sscl::cps::LockerAndInvokerBase::List::iterator
+    getLockvokerIteratorForQutex(sscl::cps::Qutex& qutex) const override
+    {
         registeredQutex = &qutex;
-        queueIterator = qutex.registerInQueue(std::shared_ptr<sscl::cps::LockerAndInvokerBase>(this));
+
-        return queueIterator;
+        for (auto it = qutex.queue.begin(); it != qutex.queue.end(); ++it)
+        {
+            if ((**it) == *this)
+            {
+                queueIterator = it;
+                return it;
+            }
         }
 
-    void awaken(bool forceAwaken = false) override {
+        throw std::runtime_error(
+            "MockLockerAndInvoker: not registered in qutex queue");
+    }
+
+    void awaken(bool forceAwaken = false) override
+    {
         (void)forceAwaken;
         awakened = true;
     }
+
+    size_t getLockSetSize() const override
+    {
+        return 1;
+    }
+
+    sscl::cps::Qutex& getLockAt(size_t index) const override
+    {
+        if (index != 0 || registeredQutex == nullptr)
+        {
+            throw std::runtime_error(
+                "MockLockerAndInvoker: invalid lock index or no registered qutex");
+        }
+
+        return *registeredQutex;
+    }
 };
 
 class QutexTest : public ::testing::Test {
@@ -45,7 +75,7 @@ protected:
         // Clean up
     }
 
-    sscl::cps::Qutex qutex;
+    sscl::cps::Qutex qutex{"test-qutex"};
     std::shared_ptr<MockLockerAndInvoker> mock1, mock2, mock3, mock4, mock5;
 
     // Unique addresses for testing
@@ -79,7 +109,7 @@ TEST_F(QutexTest, QueueRegistrationAndUnregistration) {
 // Test single lock acquisition when queue is empty
 TEST_F(QutexTest, SingleLockAcquisitionEmptyQueue) {
     // Register mock1
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
 
     // Try to acquire with nRequiredLocks = 1
     bool acquired = qutex.tryAcquire(*mock1, 1);
@@ -90,9 +120,9 @@ TEST_F(QutexTest, SingleLockAcquisitionEmptyQueue) {
 // Test single lock acquisition when at front of queue
 TEST_F(QutexTest, SingleLockAcquisitionAtFront) {
     // Register multiple lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
-    auto it3 = qutex.registerInQueue(mock3);
+    (void)qutex.registerInQueue(mock3);
 
     // mock1 should be at front, mock3 at back
     EXPECT_EQ(qutex.queue.front().get(), mock1.get());
@@ -112,8 +142,8 @@ TEST_F(QutexTest, SingleLockAcquisitionAtFront) {
 // Test single lock acquisition failure when not at front
 TEST_F(QutexTest, SingleLockAcquisitionNotAtFront) {
     // Register multiple lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
 
     // mock2 (not at front) should fail
     bool acquired = qutex.tryAcquire(*mock2, 1);
@@ -124,10 +154,10 @@ TEST_F(QutexTest, SingleLockAcquisitionNotAtFront) {
 // Test multi-lock acquisition (nRequiredLocks > 1)
 TEST_F(QutexTest, MultiLockAcquisition) {
     // Register 4 lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
-    auto it3 = qutex.registerInQueue(mock3);
+    (void)qutex.registerInQueue(mock3);
-    auto it4 = qutex.registerInQueue(mock4);
+    (void)qutex.registerInQueue(mock4);
 
     // For nRequiredLocks = 2, need to be in top 50% (top 2 out of 4)
     // mock1 (position 1) should succeed
@@ -159,16 +189,16 @@ TEST_F(QutexTest, MultiLockAcquisition) {
 // Test multi-lock acquisition with 3 required locks
 TEST_F(QutexTest, MultiLockAcquisitionThreeLocks) {
     // Register 6 lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
-    auto it3 = qutex.registerInQueue(mock3);
+    (void)qutex.registerInQueue(mock3);
-    auto it4 = qutex.registerInQueue(mock4);
+    (void)qutex.registerInQueue(mock4);
-    auto it5 = qutex.registerInQueue(mock5);
+    (void)qutex.registerInQueue(mock5);
 
     // Create one more mock
     int addr6 = 6;
     auto mock6 = std::make_shared<MockLockerAndInvoker>(&addr6);
-    auto it6 = qutex.registerInQueue(mock6);
+    (void)qutex.registerInQueue(mock6);
 
     // For nRequiredLocks = 3, need to be in top 66% (top 4 out of 6)
     // Positions 1, 2, 3, 4 should succeed
@@ -201,7 +231,7 @@ TEST_F(QutexTest, MultiLockAcquisitionThreeLocks) {
 // Test acquisition failure when already owned
 TEST_F(QutexTest, AcquisitionFailureWhenOwned) {
     // Register mock1
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
 
     // Manually set as owned
     qutex.isOwned = true;
@@ -215,17 +245,17 @@ TEST_F(QutexTest, AcquisitionFailureWhenOwned) {
 // Test backoff with single item (should not rotate)
 TEST_F(QutexTest, BackoffSingleItem) {
 	// Register only one lockvoker
-    auto it1 = qutex.registerInQueue(mock1);
+	(void)qutex.registerInQueue(mock1);
 
 	// Set as owned first
 	qutex.isOwned = true;
 
-    // Backoff should not rotate and should awaken the front item
+	// nRequiredLocks > 1 avoids the "front item with nRequiredLocks==1" guard
 	mock1->awakened = false;
-    qutex.backoff(*mock1, 1);
+	qutex.backoff(*mock1, 2);
 
 	EXPECT_FALSE(qutex.isOwned);
-    EXPECT_EQ(qutex.queue.size(), 1);
+	EXPECT_EQ(qutex.queue.size(), 1u);
 	// Should not awaken since there's only one item
 	EXPECT_FALSE(mock1->awakened);
 }
@@ -233,9 +263,9 @@ TEST_F(QutexTest, BackoffSingleItem) {
 // Test backoff with multiple items and rotation
 TEST_F(QutexTest, BackoffWithRotation) {
     // Register multiple lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
-    auto it3 = qutex.registerInQueue(mock3);
+    (void)qutex.registerInQueue(mock3);
 
     // Set as owned first
     qutex.isOwned = true;
@@ -259,8 +289,8 @@ TEST_F(QutexTest, BackoffWithRotation) {
 // Test backoff with rotation to back when queue smaller than nRequiredLocks
 TEST_F(QutexTest, BackoffRotationToBack) {
     // Register only 2 lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+    (void)qutex.registerInQueue(mock2);
 
     // Set as owned first
     qutex.isOwned = true;
@@ -285,11 +315,10 @@ TEST_F(QutexTest, BackoffRotationToBack) {
 // Test release functionality
 TEST_F(QutexTest, Release) {
 	// Register multiple lockvokers
-    auto it1 = qutex.registerInQueue(mock1);
+	(void)qutex.registerInQueue(mock1);
-    auto it2 = qutex.registerInQueue(mock2);
+	(void)qutex.registerInQueue(mock2);
 
-    // Set as owned
+	ASSERT_TRUE(qutex.tryAcquire(*mock1, 1));
-    qutex.isOwned = true;
 
 	// Release should set isOwned to false and awaken front item
 	mock1->awakened = false;
@@ -299,15 +328,11 @@ TEST_F(QutexTest, Release) {
 	EXPECT_TRUE(mock1->awakened);
 }
 
-// Test release with empty queue
+// Test release without a prior acquire is rejected
-TEST_F(QutexTest, ReleaseEmptyQueue) {
+TEST_F(QutexTest, ReleaseWithoutAcquireThrows) {
-    // Set as owned
 	qutex.isOwned = true;
 
-    // Release with empty queue should just set isOwned to false
+	EXPECT_THROW(qutex.release(), std::runtime_error);
-    qutex.release();
-
-    EXPECT_FALSE(qutex.isOwned);
 	EXPECT_TRUE(qutex.queue.empty());
 }
 
@@ -326,7 +351,7 @@ TEST_F(QutexTest, ExceptionOnEmptyQueueBackoff) {
 // Test edge case: single lockvoker with multiple required locks
 TEST_F(QutexTest, SingleLockvokerMultipleRequiredLocks) {
     // Register only one lockvoker
-    auto it1 = qutex.registerInQueue(mock1);
+    (void)qutex.registerInQueue(mock1);
 
     // Should succeed regardless of nRequiredLocks when only one item
     bool acquired = qutex.tryAcquire(*mock1, 5);