public static Scanner PrepareScanner(string s)
{
var reader = new StringsReader(s);
var scanner = new Scanner(reader);
return(scanner);
}
public void StringWithContent_stringReaderReadsFirstSignOnInitialization_CurrentSignCorrect()
{
// prepare
var str = "example 123";
// act
var stringReader = new StringsReader(str);
// validate
Assert.Equal('e', stringReader.CurrentSign);
}
public void EmptyFile_stringReaderReadsFirstSignOnInitialization_CurrentSignMinusOne()
{
// prepare
var str = "";
// act
var stringReader = new StringsReader(str);
// validate
Assert.Equal(-1, stringReader.CurrentSign);
}
public void FileWithContent_stringReaderReadsTwoSigns_CurrentSignCorrect()
{
// prepare
var str = "example 123";
// act
var stringReader = new StringsReader(str);
stringReader.Read();
stringReader.Read();
// validate
Assert.Equal('a', stringReader.CurrentSign);
}
public void StreamWithStringWithEscapedQuoteMark_ReadNextTokenTillEof_TokensAreCorrect()
{
// prepare
var reader = new StringsReader("\"st\\\"ring\"");
var scanner = new Scanner(reader);
// act
scanner.ReadNextToken();
var firstToken = scanner.Token;
var isString = scanner.TryReadString();
var secondToken = scanner.Token;
scanner.ReadNextToken();
var thirdToken = scanner.Token;
// validate
Assert.Equal(TokenType.QuotationMark, firstToken.Type);
Assert.Equal(TokenType.Text, secondToken.Type);
Assert.Equal("st\"ring", secondToken.Value);
Assert.Equal(TokenType.QuotationMark, thirdToken.Type);
}