public void WhenParsingSimpleAdd_ThenShouldGetThreeTokens()
{
// Arrange
var parser = new EquationParser();
// Act
var result = parser.Parse("1+2");
// Assert
Assert.AreEqual(3, result.Tokens.Count);
}
public void WhenParsingSimpleAdd_ThenSecondTokenShouldBeAnAddOperator()
{
// Arrange
var parser = new EquationParser();
// Act
var result = parser.Parse("1+2");
// Assert
Assert.AreEqual(TokenType.Operator, result.Tokens[1].Type);
}
public void WhenParsingNull_ThenShouldReturnZeroTokens()
{
// Arrange
var parser = new EquationParser();
// Act
var result = parser.Parse(null);
// Assert
Assert.AreEqual(0, result.Tokens.Count);
}
public void WhenParsingSimpleAdd_ThenFirstTokenShouldBeAValueOf1()
{
// Arrange
var parser = new EquationParser();
// Act
var result = parser.Parse("1+2");
// Assert
Assert.AreEqual(TokenType.Value, result.Tokens[0].Type);
Assert.AreEqual(1m, result.Tokens[0].Value);
}