public void ParseExpression()
{
ExpressionSyntax expression = Syntax.ParseExpression("1 + 2");
if (expression.Kind == SyntaxKind.AddExpression)
{
BinaryExpressionSyntax binaryExpression = (BinaryExpressionSyntax)expression;
SyntaxToken operatorToken = binaryExpression.OperatorToken;
Assert.AreEqual("+", operatorToken.ToString());
ExpressionSyntax left = binaryExpression.Left;
Assert.AreEqual(SyntaxKind.NumericLiteralExpression, left.Kind);
}
}