public void TestThatLexerGenerateRightTreeFromOneSymbolAndCheckSuccessedWithEmptyString()
{
// Arrange
var symbol = 'a';
var stream = new MemoryStream().FromString($"\'{symbol}\'{this.Symbol}");
var testStream = new MemoryStream().FromString($"");
var lexer = this.Lexer;
// Act
var tree = new AstTree(lexer.Parse(stream));
// Assert
Assert.IsFalse(tree.Check(testStream));
}
public void TestThatLexerGenerateRightTreeFromOneSymbolAndCheckFiledBecauseOfManySymbols()
{
// Arrange
var symbol = 'a';
var stream = new MemoryStream().FromString($"\'{symbol}\'");
var testStream = new MemoryStream().FromString($"{symbol}{symbol}");
var lexer = this.Lexer;
// Act
var tree = new AstTree(lexer.Parse(stream));
// Assert
Assert.IsFalse(tree.Check(testStream));
}
public void TestThatLexerGenerateSuccessTreeForManyRulesAndSchekeFailed()
{
// Arrange
var str = new List <char> {
's', 'a', 's', 'h', 'e', 'c', 'h', 'k', 'a'
};
var mapped = string.Join(string.Empty, str.Select(x => $"\'{x}\'"));
var stream = new MemoryStream().FromString(mapped);
var testStream = new MemoryStream().FromString("sshechka");
var lexer = this.Lexer;
// Act
var tree = new AstTree(lexer.Parse(stream));
// Assert
Assert.IsFalse(tree.Check(testStream));
}
public void TestThatLexerGenerateRightTreeFromSeveralSymbolsAndCheckSuccessedWithManySymbol()
{
// Arrange
var str = new List <char> {
'a', 'b', 'c', 'd'
};
var mapped = string.Join(string.Empty, str.Select(x => $"\'{x}\'{this.Symbol}"));
var stream = new MemoryStream().FromString(mapped);
var testStream = new MemoryStream().FromString(string.Join(string.Empty, str.Select(x => $"{x}{x}{x}{x}{x}{x}{x}{x}{x}{x}")));
var lexer = this.Lexer;
// Act
var tree = new AstTree(lexer.Parse(stream));
// Assert
Assert.IsTrue(tree.Check(testStream));
}
