public void StringExpressionChecker_OneDigit_ShouldPass()
{
// Arrange
const string expression = "4";
// Act
bool isValid = StringExpressionChecker.IsValid(expression);
// Assert
Assert.IsTrue(isValid);
}
public void StringExpressionChecker_DivisionByZero_ShouldFail()
{
// Arrange
const string expression = "4+4/0+2";
// Act
bool isValid = StringExpressionChecker.IsValid(expression);
// Assert
Assert.IsFalse(isValid);
}
public void StringExpressionChecker_TwoMathOperationsNextToEachOther_ShouldFail()
{
// Arrange
const string expression = "4++4";
// Act
bool isValid = StringExpressionChecker.IsValid(expression);
// Assert
Assert.IsFalse(isValid);
}
public void StringExpressionChecker_LastIsMathOperation_ShouldFail()
{
// Arrange
const string expression = "4+4+";
// Act
bool isValid = StringExpressionChecker.IsValid(expression);
// Assert
Assert.IsFalse(isValid);
}
public void StringExpressionChecker_CorrectExpression_ShouldPass()
{
// Arrange
const string expression = "4+4/2";
// Act
bool isValid = StringExpressionChecker.IsValid(expression);
// Assert
Assert.IsTrue(isValid);
}