chore(JSON): add stringify unicode tests #4707 (#4720)

* chore(JSON): add stringify unicode tests #4707

* enh(Mutex): Error code for pthread_mutex_lock failure #4712

Foundation/include/Poco/Error.h

@@ -43,6 +43,9 @@ public:
 	static std::string getMessage(int errorCode);
 		/// Utility function translating numeric error code to string.
 #endif
+
+	static std::string getLastMessage();
+		/// Utility function returning the last error message.
 };
 
 

Foundation/include/Poco/Mutex_POSIX.h

@@ -20,8 +20,8 @@
 
 #include "Poco/Foundation.h"
 #include "Poco/Exception.h"
+#include "Poco/Error.h"
 #include <pthread.h>
-#include <errno.h>
 
 
 namespace Poco {
@@ -56,8 +56,9 @@ protected:
 //
 inline void MutexImpl::lockImpl()
 {
-	if (pthread_mutex_lock(&_mutex))
+	int rc;
-		throw SystemException("cannot lock mutex");
+	if ((rc = pthread_mutex_lock(&_mutex)))
+		throw SystemException("cannot lock mutex", Error::getMessage(rc));
 }
 
 
@@ -69,14 +70,15 @@ inline bool MutexImpl::tryLockImpl()
 	else if (rc == EBUSY)
 		return false;
 	else
-		throw SystemException("cannot lock mutex");
+		throw SystemException("cannot lock mutex", Error::getMessage(rc));
 }
 
 
 inline void MutexImpl::unlockImpl()
 {
-	if (pthread_mutex_unlock(&_mutex))
+	int rc;
-		throw SystemException("cannot unlock mutex");
+	if ((rc = pthread_mutex_unlock(&_mutex)))
+		throw SystemException("cannot unlock mutex", Error::getMessage(rc));
 }
 
 

Foundation/include/Poco/Mutex_WIN32.h

@@ -20,6 +20,7 @@
 
 #include "Poco/Foundation.h"
 #include "Poco/Exception.h"
+#include "Poco/Error.h"
 #include "Poco/UnWindows.h"
 
 
@@ -55,7 +56,7 @@ inline void MutexImpl::lockImpl()
 	}
 	catch (...)
 	{
-		throw SystemException("cannot lock mutex");
+		throw SystemException("cannot lock mutex", Error::getLastMessage());
 	}
 }
 
@@ -69,7 +70,7 @@ inline bool MutexImpl::tryLockImpl()
 	catch (...)
 	{
 	}
-	throw SystemException("cannot lock mutex");
+	throw SystemException("cannot lock mutex", Error::getLastMessage());
 }
 
 

Foundation/include/Poco/RWLock_VX.h

@@ -20,8 +20,8 @@
 
 #include "Poco/Foundation.h"
 #include "Poco/Exception.h"
+#include "Poco/Error.h"
 #include <pthread.h>
-#include <errno.h>
 
 
 namespace Poco {
@@ -48,8 +48,9 @@ private:
 //
 inline void RWLockImpl::readLockImpl()
 {
-	if (pthread_mutex_lock(&_mutex))
+	int rc = 0;
-		throw SystemException("cannot lock mutex");
+	if ((rc = pthread_mutex_lock(&_mutex)))
+		throw SystemException("cannot lock mutex", Error::getMessage(rc));
 }
 
 
@@ -61,7 +62,7 @@ inline bool RWLockImpl::tryReadLockImpl()
 	else if (rc == EBUSY)
 		return false;
 	else
-		throw SystemException("cannot lock mutex");
+		throw SystemException("cannot lock mutex", Error::getMessage(rc));
 
 }
 
@@ -81,8 +82,9 @@ inline bool RWLockImpl::tryWriteLockImpl()
 
 inline void RWLockImpl::unlockImpl()
 {
-	if (pthread_mutex_unlock(&_mutex))
+	int rc = 0;
-		throw SystemException("cannot unlock mutex");
+	if ((rc = pthread_mutex_unlock(&_mutex)))
+		throw SystemException("cannot unlock mutex", Error::getMessage(rc));
 }
 
 

Foundation/src/Error.cpp

@@ -102,8 +102,13 @@ namespace Poco {
 		return helper.message();
 	}
 
-
 #endif
 
 
+std::string Error::getLastMessage()
+{
+	return getMessage(last());
+}
+
+
 } // namespace Poco

Foundation/src/Mutex_POSIX.cpp

@@ -131,7 +131,7 @@ bool MutexImpl::tryLockImpl(long milliseconds)
 	else if (rc == ETIMEDOUT)
 		return false;
 	else
-		throw SystemException("cannot lock mutex");
+		throw SystemException("cannot lock mutex", Error::getMessage(rc));
 #else
 	const int sleepMillis = 5;
 	Timestamp now;
@@ -142,7 +142,7 @@ bool MutexImpl::tryLockImpl(long milliseconds)
 		if (rc == 0)
 			return true;
 		else if (rc != EBUSY)
-			throw SystemException("cannot lock mutex");
+			throw SystemException("cannot lock mutex", Error::getMessage(rc));
 #if defined(POCO_VXWORKS)
 		struct timespec ts;
 		ts.tv_sec = 0;

Foundation/src/Mutex_WIN32.cpp

@@ -47,7 +47,7 @@ bool MutexImpl::tryLockImpl(long milliseconds)
 		}
 		catch (...)
 		{
-			throw SystemException("cannot lock mutex");
+			throw SystemException("cannot lock mutex", Error::getLastMessage());
 		}
 		Sleep(sleepMillis);
 	}

JSON/testsuite/src/JSONTest.cpp

@@ -1583,6 +1583,34 @@ void JSONTest::testStringify()
 		"    }\n"
 		"}";
 	assertTrue (ostr.str() == str);
+
+	{
+		std::string jsonStr = R"json({"default":"\u0007\u0007"})json";
+		auto jsonStrUnescape = Poco::UTF8::unescape(jsonStr);
+		Poco::JSON::Parser parser;
+		Poco::Dynamic::Var result = parser.parse(jsonStr);
+		const auto & obj = result.extract<Poco::JSON::Object::Ptr>();
+		auto default_val = obj->get("default");
+		Poco::JSON::Object::Ptr json = new Poco::JSON::Object();
+		json->set("default", default_val);
+		std::stringstream ss;
+		json->stringify(ss);
+		assertEqual(ss.str(), jsonStr);
+	}
+
+	{
+		std::string jsonStr = R"json({"default":"\u0050\u0050"})json";
+		auto jsonStrUnescape = Poco::UTF8::unescape(jsonStr);
+		Poco::JSON::Parser parser;
+		Poco::Dynamic::Var result = parser.parse(jsonStr);
+		const auto & obj = result.extract<Poco::JSON::Object::Ptr>();
+		auto default_val = obj->get("default");
+		Poco::JSON::Object::Ptr json = new Poco::JSON::Object();
+		json->set("default", default_val);
+		std::stringstream ss;
+		json->stringify(ss);
+		assertEqual(ss.str(), jsonStrUnescape);
+	}
 }