public void FewLinesPositionTest()
{
string source = "1\n22\n\n4";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
OriginPosition pos;
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 1) && (pos.CharNumber == 1));
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 2) && (pos.CharNumber == 0));
iReader.MoveNext();
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 2) && (pos.CharNumber == 2));
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 3) && (pos.CharNumber == 0));
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 4) && (pos.CharNumber == 0));
iReader.MoveNext();
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 4) && (pos.CharNumber == 1));
}
public void FewLinesFragmentPositionsTest()
{
string source = "1\n22\n\n4";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext();
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext();
iReader.MoveNext();
ILocation loc2 = iReader.CurrentLocation;
iReader.MoveNext();
IFragment fr = iOrigin.MakeFragment(loc1, loc2);
Assert.AreEqual(fr.GetBeginOriginPosition(), loc1.GetOriginPosition());
Assert.AreEqual(fr.GetEndOriginPosition(), loc2.GetOriginPosition());
iReader.MoveNext();
iReader.MoveNext();
ILocation loc3 = iReader.CurrentLocation;
IFragment fr2 = iOrigin.MakeFragment(loc2, loc3);
Assert.AreEqual(fr2.GetBeginOriginPosition(), loc2.GetOriginPosition());
Assert.AreEqual(fr2.GetEndOriginPosition(), loc3.GetOriginPosition());
}
public void FewLinesFragmentTextTest()
{
string source = "1\n22\n\n4";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext(); // after '1'
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext(); // after '\n'
iReader.MoveNext(); // after '2'
ILocation loc2 = iReader.CurrentLocation;
iReader.MoveNext(); // after '2'
Assert.AreEqual(iOrigin.MakeFragment(loc1, loc2).GetOriginText(), "\n2");
ILocation loc3 = iReader.CurrentLocation;
iReader.MoveNext(); // after '\n'
iReader.MoveNext(); // after '\n'
ILocation loc4 = iReader.CurrentLocation;
Assert.AreEqual(iOrigin.MakeFragment(loc3, loc4).GetOriginText(), "\n\n");
iReader.MoveNext(); // after '4'
ILocation loc5 = iReader.CurrentLocation;
Assert.AreEqual(iOrigin.MakeFragment(loc4, loc5).GetOriginText(), "4");
}
public void SettingLocationsTest()
{
string source = "012";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext(); // point to first character
char char1 = iReader.CurrentCharacter;
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext(); // second character
char char2 = iReader.CurrentCharacter;
ILocation loc2 = iReader.CurrentLocation;
iReader.MoveNext(); // third character
char char3 = iReader.CurrentCharacter;
ILocation loc3 = iReader.CurrentLocation;
// check if setting location works
iReader.CurrentLocation = loc1; // restore first character
Assert.AreEqual(char1, iReader.CurrentCharacter);
iReader.MoveNext(); // go to the second
Assert.AreEqual(char2, iReader.CurrentCharacter);
iReader.CurrentLocation = loc3; // restore third
Assert.AreEqual(char3, iReader.CurrentCharacter);
Assert.IsFalse(iReader.MoveNext());
iReader.CurrentLocation = loc2; // restore second character
Assert.AreEqual(char2, iReader.CurrentCharacter);
}
public void InitialReaderLocationTest()
{
string source = "";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
Assert.AreEqual(iOrigin.Begin, iReader.CurrentLocation);
}
public void EmptySourceTest()
{
string source = "";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
Assert.IsFalse(iReader.MoveNext());
}
private ILocation _lastAcceptingLocation; // Memento equivalent
public LexerState(IOrigin origin)
{
_sourceReader = origin.GetReader();
_currentLocation = _sourceReader.CurrentLocation;
_lastAcceptedLocation = _sourceReader.CurrentLocation;
_lastAcceptingLocation = _lastAcceptedLocation;
_tokens = new List <Tuple <IFragment, int> >();
}
public void OneCharacterSourceTest()
{
string source = "X";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
Assert.IsTrue(iReader.MoveNext());
Assert.AreEqual('X', iReader.CurrentCharacter);
Assert.IsFalse(iReader.MoveNext());
}
public void SetBeginLocationTest()
{
string source = "XyZ";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext();
iReader.MoveNext();
iReader.CurrentLocation = iOrigin.Begin; // set reader before first character
iReader.MoveNext();
Assert.AreEqual('X', iReader.CurrentCharacter);
}
public void NotEqualLocationsTest()
{
string source = "XXX";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext(); // point to first character
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext(); // second character
Assert.AreNotEqual(loc1, iReader.CurrentLocation);
}
public void SetOneLocationTest()
{
string source = "XyZ";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext(); // point to first character
Assert.AreEqual('X', iReader.CurrentCharacter);
ILocation loc1 = iReader.CurrentLocation;
iReader.CurrentLocation = loc1;
Assert.AreEqual('X', iReader.CurrentCharacter);
}
public void FalseMoveNextCallsTest()
{
string source = "I like reading sources!\nEspecially in tests.";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
while (iReader.MoveNext())
{
;
}
Assert.IsFalse(iReader.MoveNext());
Assert.IsFalse(iReader.MoveNext());
Assert.IsFalse(iReader.MoveNext());
}
public void EmptySourcePositionTest()
{
string source = "";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
OriginPosition pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 1) && (pos.CharNumber == 0));
Assert.IsFalse(iReader.MoveNext());
pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 1) && (pos.CharNumber == 0));
}
public void ReadSourceWithEmptyLinesTest()
{
string source = "I \n\nlike reading \nsources!\n\n\nEspecially\nin\n tests.";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
StringBuilder readString = new StringBuilder();
while (iReader.MoveNext())
{
readString.Append(iReader.CurrentCharacter);
}
Assert.AreEqual(source, readString.ToString());
}
public void ReadTheWholeSourceTest()
{
string source = "I like reading sources!\nEspecially in tests.";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
StringBuilder readString = new StringBuilder();
while (iReader.MoveNext())
{
readString.Append(iReader.CurrentCharacter);
}
Assert.AreEqual(source, readString.ToString());
}
public void OneLineEndPositionTest()
{
string source = "1234";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
while (iReader.MoveNext())
{
;
}
OriginPosition pos = iReader.CurrentLocation.GetOriginPosition();
Assert.IsTrue((pos.LineNumber == 1) && (pos.CharNumber == 4));
}
public void GetLocationOriginTest()
{
string source = "XyZ";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
iReader.MoveNext(); // point to first character
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext();
ILocation loc2 = iReader.CurrentLocation;
Assert.AreSame(loc1.Origin, iOrigin);
Assert.AreSame(loc2.Origin, iOrigin);
}
public void EmptySourceFragmentTextTest()
{
string source = "";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
ILocation loc1 = iReader.CurrentLocation;
iReader.MoveNext();
ILocation loc2 = iReader.CurrentLocation;
IFragment fr = iOrigin.MakeFragment(loc1, loc2);
Assert.AreEqual(fr.GetOriginText(), "");
}
public void FalseMoveNextDoesntAffectLocationTest()
{
string source = "XXX";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
while (iReader.MoveNext())
{
; // move to the end of the origin
}
ILocation endLocation = iReader.CurrentLocation;
iReader.MoveNext();
iReader.MoveNext();
Assert.AreEqual(endLocation, iReader.CurrentLocation);
}
public void WholeSourceFragmentTextTest()
{
string source = "I like reading sources!\nEspecially in tests.";
iOrigin = CreateOriginTest(source);
iReader = iOrigin.GetReader();
ILocation locBeg = iReader.CurrentLocation;
while (iReader.MoveNext())
{
; // move to the end of source
}
ILocation locEnd = iReader.CurrentLocation;
IFragment frAll = iOrigin.MakeFragment(locBeg, locEnd);
Assert.AreEqual(frAll.GetOriginText(), source);
}