public void TestCaseConstruction3()
{
var @operator = new ArithmeticNeutralOperator("operator", TypeConverter);
Assert.AreEqual("operator", @operator.Symbol);
Assert.AreEqual(1, @operator.Precedence);
}
public void TestCaseOperatorRegistration()
{
var tokenizer = new Tokenizer("irrelevant");
var lexer = new Lexer(tokenizer, ExpressionFlowSymbols.Default, StringComparer.OrdinalIgnoreCase);
var neutral = new ArithmeticNeutralOperator(TypeConverter);
var sum = new ArithmeticSumOperator(TypeConverter);
ExpectArgumentNullException("operator", () => lexer.RegisterOperator(null));
Assert.AreEqual(lexer, lexer.RegisterOperator(neutral));
Assert.AreEqual(lexer, lexer.RegisterOperator(sum));
ExpectOperatorAlreadyRegisteredException(neutral.ToString(), () => lexer.RegisterOperator(neutral));
ExpectOperatorAlreadyRegisteredException(sum.ToString(), () => lexer.RegisterOperator(sum));
/* Clashing with specials */
lexer.RegisterSpecial("FALSE", false);
var clashingOp1 = new ArithmeticNeutralOperator("FALSE", TypeConverter);
var clashingOp2 = new ArithmeticSumOperator("FALSE", TypeConverter);
ExpectOperatorAlreadyRegisteredException(clashingOp1.ToString(), () => lexer.RegisterOperator(clashingOp1));
ExpectOperatorAlreadyRegisteredException(clashingOp2.ToString(), () => lexer.RegisterOperator(clashingOp2));
/* Flow */
ExpectOperatorAlreadyRegisteredException("(", () => lexer.RegisterOperator(new ArithmeticNeutralOperator("(", TypeConverter)));
lexer.RegisterOperator(new ArithmeticNeutralOperator(")", TypeConverter));
lexer.RegisterOperator(new ArithmeticNeutralOperator(".", TypeConverter));
lexer.RegisterOperator(new ArithmeticNeutralOperator(",", TypeConverter));
lexer.RegisterOperator(new ArithmeticSumOperator("(", TypeConverter));
ExpectOperatorAlreadyRegisteredException(")", () => lexer.RegisterOperator(new ArithmeticSumOperator(")", TypeConverter)));
ExpectOperatorAlreadyRegisteredException(".", () => lexer.RegisterOperator(new ArithmeticSumOperator(".", TypeConverter)));
ExpectOperatorAlreadyRegisteredException(",", () => lexer.RegisterOperator(new ArithmeticSumOperator(",", TypeConverter)));
}
public void TestCaseEvaluation()
{
var @operator = new ArithmeticNeutralOperator(TypeConverter);
AssertEvaluation <double>(@operator, 0, 0);
AssertEvaluation <double>(@operator, double.NaN, double.NaN);
AssertEvaluation <double>(@operator, -double.NaN, -double.NaN);
}
public void TestCaseOperatorRegistration1()
{
var expression = new Expression();
var unaryOpPlus = new ArithmeticNeutralOperator("+", TypeConverter);
var binaryOpPlus = new ArithmeticSumOperator("+", TypeConverter);
expression.RegisterOperator(unaryOpPlus);
ExpectOperatorAlreadyRegisteredException(unaryOpPlus.ToString(), () => expression.RegisterOperator(unaryOpPlus));
expression.RegisterOperator(binaryOpPlus);
ExpectOperatorAlreadyRegisteredException(binaryOpPlus.ToString(), () => expression.RegisterOperator(binaryOpPlus));
}
public void TestCaseCaseSensitivity()
{
var expressionIns = new Expression(ExpressionFlowSymbols.Default, StringComparer.OrdinalIgnoreCase);
var expressionSens = new Expression(ExpressionFlowSymbols.Default, StringComparer.Ordinal);
var testOperator = new ArithmeticNeutralOperator("lower_case_operator", TypeConverter);
expressionIns.RegisterOperator(testOperator);
expressionSens.RegisterOperator(testOperator);
Assert.IsTrue(expressionIns.IsSupportedOperator(testOperator.Symbol.ToUpper()));
Assert.IsTrue(expressionIns.IsSupportedOperator(testOperator.Symbol));
Assert.IsFalse(expressionSens.IsSupportedOperator(testOperator.Symbol.ToUpper()));
Assert.IsTrue(expressionSens.IsSupportedOperator(testOperator.Symbol));
expressionIns.FeedSymbol(testOperator.Symbol.ToUpper());
expressionSens.FeedSymbol(testOperator.Symbol.ToUpper());
Assert.AreEqual("lower_case_operator{??}", expressionIns.ToString(ExpressionFormatStyle.Canonical));
Assert.AreEqual("@LOWER_CASE_OPERATOR", expressionSens.ToString(ExpressionFormatStyle.Canonical));
}
public void TestCaseSpecialRegistration()
{
var tokenizer = new Tokenizer("irrelevant");
var lexer = new Lexer(tokenizer, ExpressionFlowSymbols.Default, StringComparer.OrdinalIgnoreCase);
/* Exceptions */
ExpectArgumentNullException("keyword", () => lexer.RegisterSpecial(null, null));
ExpectArgumentEmptyException("keyword", () => lexer.RegisterSpecial(string.Empty, null));
ExpectArgumentNotIdentifierException("keyword", () => lexer.RegisterSpecial("12ABC", null));
var clashingOp1 = new ArithmeticNeutralOperator("T1", TypeConverter);
var clashingOp2 = new ArithmeticSumOperator("T2", TypeConverter);
lexer.RegisterOperator(clashingOp1);
lexer.RegisterOperator(clashingOp2);
ExpectSpecialCannotBeRegisteredException("T1", () => lexer.RegisterSpecial("T1", true));
ExpectSpecialCannotBeRegisteredException("T2", () => lexer.RegisterSpecial("T2", true));
Assert.AreEqual(lexer, lexer.RegisterSpecial("FALSE", false));
Assert.AreEqual(lexer, lexer.RegisterSpecial("FALSE", false));
}
public void TestCaseSupportedOperators()
{
var expression = new Expression();
var neutral = new ArithmeticNeutralOperator(TypeConverter);
var sum = new ArithmeticSumOperator(TypeConverter);
/* Unary */
expression.RegisterOperator(neutral);
Assert.AreEqual(1, expression.SupportedOperators.Count);
Assert.AreEqual(neutral, expression.SupportedOperators[0]);
Assert.IsTrue(expression.IsSupportedOperator(neutral.Symbol));
/* Binary */
expression.RegisterOperator(sum);
Assert.AreEqual(2, expression.SupportedOperators.Count);
Assert.AreEqual(sum, expression.SupportedOperators[1]);
Assert.IsTrue(expression.IsSupportedOperator(sum.Symbol));
ExpectArgumentNullException("symbol", () => expression.IsSupportedOperator(null));
ExpectArgumentEmptyException("symbol", () => expression.IsSupportedOperator(string.Empty));
}
public void TestCaseOperatorRegistration2()
{
var expression = new Expression();
var unary1 = new ArithmeticNeutralOperator("(", TypeConverter);
var unary2 = new ArithmeticNeutralOperator(")", TypeConverter);
var unary3 = new ArithmeticNeutralOperator(".", TypeConverter);
var unary4 = new ArithmeticNeutralOperator(",", TypeConverter);
var binary1 = new ArithmeticSumOperator("(", TypeConverter);
var binary2 = new ArithmeticSumOperator(")", TypeConverter);
var binary3 = new ArithmeticSumOperator(".", TypeConverter);
var binary4 = new ArithmeticSumOperator(",", TypeConverter);
ExpectOperatorAlreadyRegisteredException(unary1.ToString(), () => expression.RegisterOperator(unary1));
ExpectOperatorAlreadyRegisteredException(unary2.ToString(), () => expression.RegisterOperator(unary2));
ExpectOperatorAlreadyRegisteredException(unary3.ToString(), () => expression.RegisterOperator(unary3));
ExpectOperatorAlreadyRegisteredException(unary4.ToString(), () => expression.RegisterOperator(unary4));
ExpectOperatorAlreadyRegisteredException(binary1.ToString(), () => expression.RegisterOperator(binary1));
ExpectOperatorAlreadyRegisteredException(binary2.ToString(), () => expression.RegisterOperator(binary2));
ExpectOperatorAlreadyRegisteredException(binary3.ToString(), () => expression.RegisterOperator(binary3));
ExpectOperatorAlreadyRegisteredException(binary4.ToString(), () => expression.RegisterOperator(binary4));
}
public void TestCaseEvaluationExceptions()
{
var @operator = new ArithmeticNeutralOperator(TypeConverter);
ExpectArgumentNullException("context", () => @operator.Evaluate(null, 1));
}
public void TestCaseConstruction2()
{
var @operator = new ArithmeticNeutralOperator(TypeConverter);
Assert.AreEqual("+", @operator.Symbol);
}