public void ValidateWrongExpressionWithValidSubexpression()
{
string expression = "2 + 7 - 2 a 3 b";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsFalse(result);
}
public void SetUp()
{
var validator = new MathRegex();
var expressionFixer = new ExpressionFixer(validator);
this.lexer = new MathLexer(validator, expressionFixer);
}
public void ValidateComplexWrongExpression()
{
string expression = "2 + 7 a 2 b 4";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsFalse(result);
}
public void ValidateSimpleWrongExpression()
{
string expression = "2a7";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsFalse(result);
}
public void ValidateFailsNoSpaces()
{
string expression = "2+7";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsFalse(result);
}
public void ValidateComplexExpression()
{
string expression = "2 + 7 - 2 * 4";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsTrue(result);
}
public void ValidateWithSpaces()
{
string expression = "2 + 287";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsTrue(result);
}
public void ValidateWithSeveralOperatorsTogether()
{
string expression = "+ + 7";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsFalse(result);
}
public void ValidateMoreThanOneDigitExpression()
{
string expression = "25 + 287";
bool result = MathRegex.IsExpressionValid(expression);
Assert.IsTrue(result);
}
public void IsOperator()
{
string operators = "*+/-";
foreach (char op in operators)
{
Assert.IsTrue(MathRegex.IsOperator(op.ToString()));
}
}
public void SplitExpressionWhenOperatorAtEnd()
{
var validator = new MathRegex();
var fixer = new ExpressionFixer(validator);
var expressions = new List<string> {"2 +"};
var result = fixer.FixExpressions(expressions);
Assert.AreEqual(2, result.Count);
Assert.IsTrue(result.Contains("2"));
Assert.IsTrue(result.Contains("+"));
}
public void SetUp()
{
var expressionValidator = new MathRegex();
var expressionFixer = new ExpressionFixer(expressionValidator);
this.lexer = new MathLexer(expressionValidator, expressionFixer);
var limitsValidator = new LimitsValidator(-100, 100);
var proxy = new CalculatorProxy(limitsValidator);
var calculator = new Calculator();
var operatorFactory = new OperatorFactory(proxy, calculator);
this.parser = new MathParser(this.lexer, operatorFactory);
}
public void ValidateSimpleExpressionWithAllOperations()
{
string operators = "+-*/";
string expression = String.Empty;
foreach (char operatorChar in operators)
{
expression = "2 " + operatorChar + " 2";
Assert.IsTrue(MathRegex.IsExpressionValid(expression), "Failure with operator: " + operatorChar);
}
}
public void SplitExpressionWhenOperatorAtEnd()
{
var validator = new MathRegex();
var fixer = new ExpressionFixer(validator);
var expressions = new List <string> {
"2 +"
};
var result = fixer.FixExpressions(expressions);
Assert.AreEqual(2, result.Count);
Assert.IsTrue(result.Contains("2"));
Assert.IsTrue(result.Contains("+"));
}
public void SetUp()
{
var expressionValidator = new MathRegex();
var expressionFixer = new ExpressionFixer(expressionValidator);
this.lexer = new MathLexer(expressionValidator, expressionFixer);
var limitsValidator = new LimitsValidator(-100, 100);
var proxy = new CalculatorProxy(limitsValidator);
var calculator = new Calculator();
var operatorFactory = new OperatorFactory(proxy, calculator);
this.parser = new MathParser(this.lexer, operatorFactory);
}
public void SetUp()
{
this.expressionValidator = new MathRegex();
}
public void ValidateWithNegativeNumbers()
{
Assert.IsTrue(MathRegex.IsExpressionValid("-7 + 1"));
}
public void SetUp()
{
this.expressionValidator = new MathRegex();
}
public void SetUp()
{
var validator = new MathRegex();
var expressionFixer = new ExpressionFixer(validator);
this.lexer = new MathLexer(validator, expressionFixer);
}
public void IsSubExpression()
{
Assert.IsTrue(MathRegex.IsSubExpression("2 + 2"));
}
public void ValidateWithNegativeNumbersAtTheEnd()
{
Assert.IsTrue(MathRegex.IsExpressionValid("7 - -1"));
}
public void IsNumber()
{
Assert.IsTrue(MathRegex.IsNumber("22"));
}
