Index: src/libchcore/TPath.cpp
===================================================================
diff -u -r548382442cbf7bed7f744b279ce3f66b54992724 -r9545b48aadb1592a5bf22ac5a227b1666d7710c6
--- src/libchcore/TPath.cpp	(.../TPath.cpp)	(revision 548382442cbf7bed7f744b279ce3f66b54992724)
+++ src/libchcore/TPath.cpp	(.../TPath.cpp)	(revision 9545b48aadb1592a5bf22ac5a227b1666d7710c6)
@@ -208,7 +208,7 @@
 					m_pPath->m_strPath += pathToAppend.m_pPath->m_strPath;
 				else
 				{
-					m_pPath->m_strPath.DeleteChar(m_pPath->m_strPath.GetLength() - 1);
+					m_pPath->m_strPath.Delete(m_pPath->m_strPath.GetLength() - 1, 1);
 					m_pPath->m_strPath += pathToAppend.m_pPath->m_strPath;
 				}
 			}
@@ -776,7 +776,7 @@
 
 	size_t stEnd = m_pPath->m_strPath.FindLastOf(_T("/\\"));
 	if(stStart != TString::npos && stEnd >= stStart)
-		return PathFromWString(m_pPath->m_strPath.MidByPos(stStart, stEnd + 1));
+		return PathFromWString(m_pPath->m_strPath.MidRange(stStart, stEnd + 1));
 
 	return TSmartPath();
 }
@@ -826,7 +826,7 @@
 	if(stEnd == TString::npos || stEnd < stStart)		// if does not exist or we have ".\\", use up to the end
 		stEnd = m_pPath->m_strPath.GetLength();
 
-	return PathFromWString(m_pPath->m_strPath.MidByPos(stStart + 1, stEnd));
+	return PathFromWString(m_pPath->m_strPath.MidRange(stStart + 1, stEnd));
 }
 
 // ============================================================================
@@ -861,7 +861,7 @@
 	size_t stIndex = m_pPath->m_strPath.FindLastOf(_T("\\/."));
 
 	if(stIndex != TString::npos && m_pPath->m_strPath.GetAt(stIndex) == _T('.'))
-		return PathFromWString(m_pPath->m_strPath.MidByPos(stIndex, m_pPath->m_strPath.GetLength()));	// ".txt" for "c:\windows\test.txt"
+		return PathFromWString(m_pPath->m_strPath.MidRange(stIndex, m_pPath->m_strPath.GetLength()));	// ".txt" for "c:\windows\test.txt"
 
 	return TSmartPath();
 }
@@ -896,7 +896,7 @@
 
 	size_t stIndex = m_pPath->m_strPath.FindLastOf(_T("\\/"));
 	if(stIndex != TString::npos)
-		return PathFromWString(m_pPath->m_strPath.MidByPos(stIndex + 1, m_pPath->m_strPath.GetLength()));	// "test.txt" for "c:\windows\test.txt"
+		return PathFromWString(m_pPath->m_strPath.MidRange(stIndex + 1, m_pPath->m_strPath.GetLength()));	// "test.txt" for "c:\windows\test.txt"
 
 	return TSmartPath();
 }
@@ -968,7 +968,7 @@
 	if(EndsWithSeparator())
 	{
 		PrepareToWrite();
-		m_pPath->m_strPath.DeleteChar(m_pPath->m_strPath.GetLength() - 1);
+		m_pPath->m_strPath.Delete(m_pPath->m_strPath.GetLength() - 1, 1);
 	}
 }
 
@@ -1018,7 +1018,7 @@
 	{
 		PrepareToWrite();
 
-		m_pPath->m_strPath.DeleteChar(0);
+		m_pPath->m_strPath.Delete(0, 1);
 	}
 }
 
Index: src/libchcore/TString.cpp
===================================================================
diff -u -r548382442cbf7bed7f744b279ce3f66b54992724 -r9545b48aadb1592a5bf22ac5a227b1666d7710c6
--- src/libchcore/TString.cpp	(.../TString.cpp)	(revision 548382442cbf7bed7f744b279ce3f66b54992724)
+++ src/libchcore/TString.cpp	(.../TString.cpp)	(revision 9545b48aadb1592a5bf22ac5a227b1666d7710c6)
@@ -119,7 +119,7 @@
 
 using namespace details;
 
-size_t TString::npos = (size_t)-1;
+size_t TString::npos = std::numeric_limits<size_t>::max();
 
 /** Standard constructor - allocates the underlying data object
  */
@@ -379,8 +379,10 @@
 	return strNew;
 }
 
-TString TString::MidByPos(size_t tStart, size_t stAfterEndPos) const
+TString TString::MidRange(size_t tStart, size_t stAfterEndPos) const
 {
+	if(stAfterEndPos < tStart)
+		return TString();
 	return Mid(tStart, stAfterEndPos - tStart);
 }
 
@@ -461,20 +463,6 @@
 	}
 }
 
-bool TString::DeleteChar(size_t stIndex)
-{
-	size_t stCurrentLength = GetLength();
-	if(stIndex >= stCurrentLength)
-		return false;
-
-	EnsureWritable(1);
-	wmemmove(m_pszStringData + stIndex, m_pszStringData + stIndex + 1, stCurrentLength - stIndex);
-	m_pszStringData[stCurrentLength - 1] = _T('\0');
-	GetInternalStringData()->SetStringLength(stCurrentLength - 1);
-
-	return true;
-}
-
 bool TString::Delete(size_t stIndex, size_t stCount)
 {
 	size_t stCurrentLength = GetLength();
@@ -626,7 +614,7 @@
 size_t TString::Find(const wchar_t* pszFindText, size_t stStartPos)
 {
 	if(!pszFindText)
-		THROW_CORE_EXCEPTION(eErr_InvalidArgument);
+		return npos;
 
 	size_t stFindTextLen = _tcslen(pszFindText);
 	size_t stThisLen = GetLength();
@@ -645,7 +633,7 @@
 void TString::Replace(const wchar_t* pszWhat, const wchar_t* pszWithWhat)
 {
 	if(!pszWhat || !pszWithWhat)
-		THROW_CORE_EXCEPTION(eErr_InvalidArgument);
+		return;
 
 	if(!m_pszStringData)
 		return;  // nothing to do
@@ -710,7 +698,10 @@
 		return true;
 	}
 	else
+	{
+		wch = L'\0';
 		return false;
+	}
 }
 
 wchar_t TString::GetAt(size_t tPos) const
@@ -719,14 +710,7 @@
 	if(tPos < tSize)
 		return m_pszStringData[tPos];
 	else
-	{
-		BOOST_ASSERT(tPos < tSize);
-		if(tPos >= tSize)
-			THROW_CORE_EXCEPTION(eErr_BoundsExceeded);
-
-		// would be nice to throw an exception here
 		return L'\0';
-	}
 }
 
 /** Returns a pointer to the unicode internal buffer. If the buffer is in ansi format
@@ -758,8 +742,9 @@
 {
 	EnsureWritable(tSize + 1);
 
-	m_pszStringData[GetCurrentBufferSize() - 1] = L'\0';
-	GetInternalStringData()->SetStringLength(tSize);
+	size_t stNewSize = std::min(GetLength(), tSize);
+	m_pszStringData[stNewSize] = L'\0';
+	GetInternalStringData()->SetStringLength(stNewSize);
 }
 
 /** Cast operator - tries to return a pointer to wchar_t* using the current internal
Index: src/libchcore/TString.h
===================================================================
diff -u -r548382442cbf7bed7f744b279ce3f66b54992724 -r9545b48aadb1592a5bf22ac5a227b1666d7710c6
--- src/libchcore/TString.h	(.../TString.h)	(revision 548382442cbf7bed7f744b279ce3f66b54992724)
+++ src/libchcore/TString.h	(.../TString.h)	(revision 9545b48aadb1592a5bf22ac5a227b1666d7710c6)
@@ -158,18 +158,17 @@
 	TString Left(size_t tLen) const;		///< Returns TString with the Left part of a source TString
 	TString Right(size_t tLen) const;		///< Returns TString with the Right part of a source TString
 	TString Mid(size_t tStart, size_t tLen = (size_t)-1) const;	///< Returns TString with the middle part of a source TString
-	TString MidByPos(size_t tStart, size_t stAfterEndPos) const;	///< Returns TString with the middle part of a source TString
+	TString MidRange(size_t tStart, size_t stAfterEndPos) const;	///< Returns TString with the middle part of a source TString
 	
 	void LeftSelf(size_t tLen);	///< Makes this TString it's Left part
 	void RightSelf(size_t tLen);	///< Makes this TString it's Right part
 	void MidSelf(size_t tStart, size_t tLen = (size_t)-1);	///< Makes this TString it's middle part
 	
-	bool DeleteChar(size_t stIndex);
 	bool Delete(size_t stIndex, size_t stCount);
 
 	void Split(const wchar_t* pszSeparators, TStringArray& rStrings) const;
 
-	// comparation
+	// compare operations
 	int_t Compare(const wchar_t* psz) const;	///< Comparison of this TString object with a given unicode TString
 	int_t Compare(const TString& str) const;	///< Comparison of this TString object with another TString object
 	
Index: src/libchcore/Tests/TestsTString.cpp
===================================================================
diff -u
--- src/libchcore/Tests/TestsTString.cpp	(revision 0)
+++ src/libchcore/Tests/TestsTString.cpp	(revision 9545b48aadb1592a5bf22ac5a227b1666d7710c6)
@@ -0,0 +1,599 @@
+#include "stdafx.h"
+#include "gtest/gtest.h"
+#include "gmock/gmock.h"
+#include "../TString.h"
+#include "../TStringException.h"
+#include "../TStringArray.h"
+#include "../TCoreException.h"
+
+using namespace chcore;
+
+TEST(TStringTests, DefaultConstructor_CheckEmptyString)
+{
+	TString strEmpty;
+	EXPECT_EQ(strEmpty.IsEmpty(), true);
+}
+
+TEST(TStringTests, WcharConstructor_CompareContent)
+{
+	TString strValue(L"Some test string");
+	EXPECT_EQ(strValue, L"Some test string");
+}
+
+TEST(TStringTests, WcharConstructorWithNullValue_CompareContent)
+{
+	TString strValue(NULL);
+	EXPECT_EQ(strValue, L"");
+}
+
+TEST(TStringTests, WcharRangeConstructor_CompareContent)
+{
+	const wchar_t* pszText = L"Some test string";
+	TString strValue(pszText, pszText + 5);
+	EXPECT_EQ(strValue, L"Some ");
+}
+
+TEST(TStringTests, WcharRangeConstructor_WithUnsupportedNullValues)
+{
+	const wchar_t* pszText = L"Some test string";
+	EXPECT_THROW(TString strValue(pszText, (const wchar_t*)NULL), TStringException);
+	EXPECT_THROW(TString strValue((const wchar_t*)NULL, pszText), TStringException);
+}
+
+TEST(TStringTests, WcharRangeConstructor_WithSupportedNullValues_CompareContent)
+{
+	TString strValue((const wchar_t*)NULL, (const wchar_t*)NULL);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, WcharRangeConstructor_WithTooLongString)
+{
+	const wchar_t* pszText = L"Some test string";
+	EXPECT_THROW(TString strValue(pszText, pszText + 5, 4), TStringException);
+}
+
+TEST(TStringTests, WcharRangeConstructorWithMaxStringLen_CompareContent)
+{
+	const wchar_t* pszText = L"Some test string";
+	TString strValue(pszText, pszText + 5, 5);
+	EXPECT_EQ(strValue, _T("Some "));
+}
+
+TEST(TStringTests, AssignmentOperator_WithNormalValue)
+{
+	TString strValue;
+	strValue = _T("Some sample string");
+	EXPECT_EQ(strValue, _T("Some sample string"));
+}
+
+TEST(TStringTests, AssignmentOperator_WithNullValue)
+{
+	TString strValue;
+	strValue = NULL;
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, AssignmentOperator_WithTString)
+{
+	TString strValue(_T("Some initial string"));
+	strValue = TString(_T("Overwriting string"));
+	EXPECT_EQ(strValue, _T("Overwriting string"));
+}
+
+TEST(TStringTests, AssignmentOperator_WithEmptyTString)
+{
+	TString strValue(_T("Some initial string"));
+	strValue = TString();
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, OperatorAdd_WithPtrToString)
+{
+	TString strValue = TString(_T("Text: ")) + _T("Some test string");
+	EXPECT_EQ(strValue, _T("Text: Some test string"));
+}
+
+TEST(TStringTests, OperatorAdd_WithNullPtrToString)
+{
+	TString strValue = TString(_T("Text: ")) + (const wchar_t*)NULL;
+	EXPECT_EQ(strValue, _T("Text: "));
+}
+
+TEST(TStringTests, OperatorAdd_EmptyWithEmptyPtrToString)
+{
+	TString strValue = TString() + _T("");
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, OperatorAdd_EmptyWithNullPtrToString)
+{
+	TString strValue = TString() + (const wchar_t*)NULL;
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, OperatorAdd_WithTString)
+{
+	TString strValue = TString(_T("Text: ")) + TString(_T("Some test string"));
+	EXPECT_EQ(strValue, _T("Text: Some test string"));
+}
+
+TEST(TStringTests, OperatorInplaceAdd_WithPtrToString)
+{
+	TString strValue(_T("Text: "));
+	strValue += _T("Some test string");
+	EXPECT_EQ(strValue, _T("Text: Some test string"));
+}
+
+TEST(TStringTests, OperatorInplaceAdd_WithNullPtrToString)
+{
+	TString strValue(_T("Text: "));
+	strValue += (const wchar_t*)NULL;
+	EXPECT_EQ(strValue, _T("Text: "));
+}
+
+TEST(TStringTests, OperatorInplaceAdd_EmptyWithEmptyPtrToString)
+{
+	TString strValue;
+	strValue += _T("");
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, OperatorInplaceAdd_EmptyWithNullPtrToString)
+{
+	TString strValue;
+	strValue += (const wchar_t*)NULL;
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, OperatorInplaceAdd_WithTString)
+{
+	TString strValue(_T("Text: "));
+	strValue += TString(_T("Some test string"));
+	EXPECT_EQ(strValue, _T("Text: Some test string"));
+}
+
+// comparisons
+TEST(PtrToStringTests, OperatorLT_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue < _T("The other string"));
+}
+
+TEST(PtrToStringTests, OperatorLTE_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue <= _T("Some string2"));
+	EXPECT_TRUE(strValue <= _T("Some string"));
+}
+
+TEST(PtrToStringTests, OperatorEQ_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue == _T("Some string"));
+}
+
+TEST(PtrToStringTests, OperatorGT_WithPtrToString)
+{
+	TString strValue(_T("The string"));
+	EXPECT_TRUE(strValue > _T("Some other string"));
+}
+
+TEST(PtrToStringTests, OperatorGTE_WithPtrToString)
+{
+	TString strValue(_T("The string"));
+	EXPECT_TRUE(strValue >= _T("The string"));
+	EXPECT_TRUE(strValue >= _T("The string"));
+}
+
+// comparisons with TStrings
+TEST(TStringTests, OperatorLT_WithTString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue < TString(_T("The other string")));
+}
+
+TEST(TStringTests, OperatorLTE_WithTString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue <= TString(_T("Some string2")));
+	EXPECT_TRUE(strValue <= TString(_T("Some string")));
+}
+
+TEST(TStringTests, OperatorEQ_WithTString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue == TString(_T("Some string")));
+}
+
+TEST(TStringTests, OperatorGT_WithTString)
+{
+	TString strValue(_T("The string"));
+	EXPECT_TRUE(strValue > TString(_T("Some other string")));
+}
+
+TEST(TStringTests, OperatorGTE_WithTString)
+{
+	TString strValue(_T("The string"));
+	EXPECT_TRUE(strValue >= TString(_T("The string")));
+	EXPECT_TRUE(strValue >= TString(_T("The string")));
+}
+
+// cast
+TEST(TStringTests, CastToPtrWcharT)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_STREQ((const wchar_t*)strValue, _T("Some string"));
+}
+
+TEST(TStringTests, CastEmptyToPtrWcharT)
+{
+	TString strValue;
+	EXPECT_STREQ((const wchar_t*)strValue, _T(""));
+}
+
+// append
+TEST(TStringTests, AppendString_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	strValue.Append(_T("... appended."));
+	EXPECT_EQ(strValue, _T("Some string... appended."));
+}
+
+TEST(TStringTests, AppendString_WithNullPtrToString)
+{
+	TString strValue(_T("Some string"));
+	strValue.Append((const wchar_t*)NULL);
+	EXPECT_EQ(strValue, _T("Some string"));
+}
+
+TEST(TStringTests, AppendString_WithTString)
+{
+	TString strValue(_T("Some string"));
+	strValue.Append(TString(_T("... appended.")));
+	EXPECT_EQ(strValue, _T("Some string... appended."));
+}
+
+// left, right, mid
+TEST(TStringTests, Left)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.Left(3), _T("Som"));
+	EXPECT_EQ(strValue.Left(0), _T(""));
+	EXPECT_EQ(strValue.Left(100), _T("Some string"));
+}
+
+TEST(TStringTests, Right)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.Right(3), _T("ing"));
+	EXPECT_EQ(strValue.Right(0), _T(""));
+	EXPECT_EQ(strValue.Right(100), _T("Some string"));
+}
+
+TEST(TStringTests, Mid)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.Mid(3), _T("e string"));
+	EXPECT_EQ(strValue.Mid(3, 2), _T("e "));
+	EXPECT_EQ(strValue.Mid(100, 50), _T(""));
+}
+
+TEST(TStringTests, MidRange)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.MidRange(3, 4), _T("e"));
+	EXPECT_EQ(strValue.MidRange(3, 5), _T("e "));
+	EXPECT_EQ(strValue.MidRange(3, 50), _T("e string"));
+
+	EXPECT_EQ(strValue.MidRange(3, 2), _T(""));
+	EXPECT_EQ(strValue.MidRange(50, 55), _T(""));
+	EXPECT_EQ(strValue.MidRange(50, 0), _T(""));
+}
+
+// left self, right self, mid self
+TEST(TStringTests, LeftSelf_NormalCase)
+{
+	TString strValue(_T("Some string"));
+	strValue.LeftSelf(3);
+	EXPECT_EQ(strValue, _T("Som"));
+}
+
+TEST(TStringTests, LeftSelf_ZeroLength)
+{
+	TString strValue(_T("Some string"));
+	strValue.LeftSelf(0);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, LeftSelf_LongerThanInput)
+{
+	TString strValue(_T("Some string"));
+	strValue.LeftSelf(100);
+	EXPECT_EQ(strValue, _T("Some string"));
+}
+
+TEST(TStringTests, RightSelf_NormalCase)
+{
+	TString strValue(_T("Some string"));
+	strValue.RightSelf(3);
+	EXPECT_EQ(strValue, _T("ing"));
+}
+
+TEST(TStringTests, RightSelf_ZeroLength)
+{
+	TString strValue(_T("Some string"));
+	strValue.RightSelf(0);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, RightSelf_LongerThanInput)
+{
+	TString strValue(_T("Some string"));
+	strValue.RightSelf(100);
+	EXPECT_EQ(strValue, _T("Some string"));
+}
+
+TEST(TStringTests, MidSelf_NormalCase)
+{
+	TString strValue(_T("Some string"));
+	strValue.MidSelf(3);
+	EXPECT_EQ(strValue, _T("e string"));
+}
+
+TEST(TStringTests, MidSelf_ZeroLength)
+{
+	TString strValue(_T("Some string"));
+	strValue.MidSelf(3, 2);
+	EXPECT_EQ(strValue, _T("e "));
+}
+
+TEST(TStringTests, MidSelf_LongerThanInput)
+{
+	TString strValue(_T("Some string"));
+	strValue.MidSelf(100, 50);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+// delete
+TEST(TStringTests, Delete_Normal)
+{
+	TString strValue(_T("Some string"));
+	strValue.Delete(1, 2);
+	EXPECT_EQ(strValue, _T("Se string"));
+}
+
+TEST(TStringTests, Delete_TooMuch)
+{
+	TString strValue(_T("Some string"));
+	strValue.Delete(1, 200);
+	EXPECT_EQ(strValue, _T("S"));
+}
+
+TEST(TStringTests, Delete_OutOfRange)
+{
+	TString strValue(_T("Some string"));
+	strValue.Delete(50, 3);
+	EXPECT_EQ(strValue, _T("Some string"));
+}
+
+TEST(TStringTests, Delete_ZeroLength)
+{
+	TString strValue(_T("Some string"));
+	strValue.Delete(1, 0);
+	EXPECT_EQ(strValue, _T("Some string"));
+}
+
+TEST(TStringTests, Delete_OnEmptyString)
+{
+	TString strValue;
+	strValue.Delete(1, 0);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+// split
+TEST(TStringTests, Split_NormalStringSingleSeparator)
+{
+	TString strData(_T("A;B;c;d;e;%$;;;"));
+	TStringArray arrSplitted;
+	strData.Split(_T(";"), arrSplitted);
+	EXPECT_EQ(arrSplitted.GetAt(0), _T("A"));
+	EXPECT_EQ(arrSplitted.GetAt(1), _T("B"));
+	EXPECT_EQ(arrSplitted.GetAt(2), _T("c"));
+	EXPECT_EQ(arrSplitted.GetAt(3), _T("d"));
+	EXPECT_EQ(arrSplitted.GetAt(4), _T("e"));
+	EXPECT_EQ(arrSplitted.GetAt(5), _T("%$"));
+	EXPECT_EQ(arrSplitted.GetAt(6), _T(""));
+	EXPECT_EQ(arrSplitted.GetAt(7), _T(""));
+	EXPECT_EQ(arrSplitted.GetAt(8), _T(""));
+	EXPECT_THROW(arrSplitted.GetAt(9), TCoreException);
+}
+
+TEST(TStringTests, Split_NormalStringMultipleSeparators)
+{
+	TString strData(_T("A;B;c:d-e;%$;^;"));
+	TStringArray arrSplitted;
+	strData.Split(_T(";:-^"), arrSplitted);
+	EXPECT_EQ(arrSplitted.GetAt(0), _T("A"));
+	EXPECT_EQ(arrSplitted.GetAt(1), _T("B"));
+	EXPECT_EQ(arrSplitted.GetAt(2), _T("c"));
+	EXPECT_EQ(arrSplitted.GetAt(3), _T("d"));
+	EXPECT_EQ(arrSplitted.GetAt(4), _T("e"));
+	EXPECT_EQ(arrSplitted.GetAt(5), _T("%$"));
+	EXPECT_EQ(arrSplitted.GetAt(6), _T(""));
+	EXPECT_EQ(arrSplitted.GetAt(7), _T(""));
+	EXPECT_EQ(arrSplitted.GetAt(8), _T(""));
+	EXPECT_THROW(arrSplitted.GetAt(9), TCoreException);
+}
+
+TEST(TStringTests, CompareCaseSensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_LT(strValue.Compare(_T("The string")), 0);
+	EXPECT_GT(strValue.Compare(_T("A string")), 0);
+	EXPECT_EQ(strValue.Compare(_T("Some string")), 0);
+}
+
+TEST(TStringTests, CompareCaseInsensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_LT(strValue.CompareNoCase(_T("the strIng")), 0);
+	EXPECT_GT(strValue.CompareNoCase(_T("a sTring")), 0);
+	EXPECT_EQ(strValue.CompareNoCase(_T("soMe String")), 0);
+}
+
+
+TEST(TStringTests, CompareCaseSensitive_WithTString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_LT(strValue.Compare(TString(_T("The string"))), 0);
+	EXPECT_GT(strValue.Compare(TString(_T("A string"))), 0);
+	EXPECT_EQ(strValue.Compare(TString(_T("Some string"))), 0);
+}
+
+TEST(TStringTests, CompareCaseInsensitive_WithTString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_LT(strValue.CompareNoCase(TString(_T("the strIng"))), 0);
+	EXPECT_GT(strValue.CompareNoCase(TString(_T("a sTring"))), 0);
+	EXPECT_EQ(strValue.CompareNoCase(TString(_T("soMe String"))), 0);
+}
+
+// starts with
+TEST(TStringTests, StartsWithCaseSensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue.StartsWith(_T("Some")));
+	EXPECT_FALSE(strValue.StartsWith(_T("some")));
+}
+
+TEST(TStringTests, StartsWithCaseInsensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue.StartsWithNoCase(_T("Some")));
+	EXPECT_TRUE(strValue.StartsWithNoCase(_T("some")));
+}
+
+// ends with
+TEST(TStringTests, EndsWithCaseSensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue.EndsWith(_T("string")));
+	EXPECT_FALSE(strValue.EndsWith(_T("String")));
+}
+
+TEST(TStringTests, EndsWithCaseInsensitive_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_TRUE(strValue.EndsWithNoCase(_T("string")));
+	EXPECT_TRUE(strValue.EndsWithNoCase(_T("String")));
+}
+
+// find first/last of
+TEST(TStringTests, FindFirstOf_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.FindFirstOf(_T("er"), 3), 3);
+	EXPECT_EQ(strValue.FindFirstOf(_T("er"), 4), 7);
+	EXPECT_EQ(strValue.FindFirstOf(_T(""), 0), TString::npos);
+	EXPECT_EQ(strValue.FindFirstOf(NULL, 0), TString::npos);
+}
+
+TEST(TStringTests, FindLastOf_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.FindLastOf(_T("er")), 7);
+	EXPECT_EQ(strValue.FindLastOf(_T("")), TString::npos);
+	EXPECT_EQ(strValue.FindLastOf(NULL), TString::npos);
+}
+
+// find and replace
+TEST(TStringTests, Find_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	EXPECT_EQ(strValue.Find(_T("tri"), 6), 6);
+	EXPECT_EQ(strValue.Find(_T("tri"), 7), TString::npos);
+	EXPECT_EQ(strValue.Find(_T(""), 0), TString::npos);
+	EXPECT_EQ(strValue.Find(NULL, 0), TString::npos);
+}
+
+TEST(TStringTests, Replace_WithPtrToString)
+{
+	TString strValue(_T("Some string"));
+	strValue.Replace(_T("tri"), _T("o"));
+	EXPECT_EQ(strValue, _T("Some song"));
+}
+
+TEST(TStringTests, Replace_EmptyStringWithPtrToString)
+{
+	TString strValue;
+	strValue.Replace(_T(""), _T("o"));
+	EXPECT_EQ(strValue, _T(""));
+}
+
+TEST(TStringTests, Replace_EmptyStringWithNullPtrToString)
+{
+	TString strValue;
+	strValue.Replace(_T(""), NULL);
+	EXPECT_EQ(strValue, _T(""));
+}
+
+// get at
+TEST(TStringTests, GetAtWithBool)
+{
+	TString strValue(_T("Some string"));
+	wchar_t wch = 0;
+
+	EXPECT_TRUE(strValue.GetAt(3, wch));
+	EXPECT_EQ(wch, _T('e'));
+
+	EXPECT_FALSE(strValue.GetAt(20, wch));
+	EXPECT_EQ(wch, _T('\0'));
+}
+
+TEST(TStringTests, GetAtWithoutBool)
+{
+	TString strValue(_T("Some string"));
+
+	EXPECT_EQ(strValue.GetAt(3), _T('e'));
+	EXPECT_EQ(strValue.GetAt(20), _T('\0'));
+}
+
+// get buffer, release buffer
+TEST(TStringTests, GetAndReleaseBuffer)
+{
+	TString strValue(_T("Some string"));
+	wchar_t* pszBuffer = strValue.GetBuffer(5);
+	pszBuffer[4] = _T('\0');
+	strValue.ReleaseBuffer();
+	
+	EXPECT_EQ(strValue.GetLength(), 4);
+}
+
+TEST(TStringTests, GetAndReleaseBufferSetLength)
+{
+	TString strValue(_T("Some string"));
+	wchar_t* pszBuffer = strValue.GetBuffer(5);
+	pszBuffer[4] = _T('t');
+	strValue.ReleaseBufferSetLength(1);
+
+	EXPECT_EQ(strValue.GetLength(), 1);
+	EXPECT_EQ(strValue, _T("S"));
+}
+
+// clear, isempty, getlength
+TEST(TStringTests, ClearAndIsEmpty)
+{
+	TString strValue(_T("Some string"));
+
+	strValue.Clear();
+
+	EXPECT_EQ(strValue, _T(""));
+	EXPECT_TRUE(strValue.IsEmpty());
+}
+
+TEST(TStringTests, GetLength)
+{
+	TString strValue(_T("Some string"));
+
+	EXPECT_EQ(strValue.GetLength(), 11);
+}