public CalculatorViewModel(IEquationParser equationParser, Calculator calculator)
{
_equationParser = equationParser;
_calculator = calculator;
ExecuteCommand = new DelegateCommand(Execute);
}
public void WhenExecutingAndAddEquation_ThenResultShouldEqualThree()
{
// Arrange
var calculator = new Calculator();
var equation = new Equation()
{
Tokens = new List<Token>()
{
new Token() {Value = 1m, Type = TokenType.Value},
new Token() {Value = "+", Type = TokenType.Operator},
new Token() {Value = 2m, Type = TokenType.Value},
}
};
// Act
var result = calculator.Solve(equation);
// Assert
Assert.AreEqual(3m, result);
}