public void Create_DegenerateParameter()
{
// Arrange
ParameterExpression expression = Expression.Parameter(typeof(int), null);
ParserContext context = new ParserContext()
{
ModelParameter = Expression.Parameter(typeof(string), null) // different ParameterExpression
};
// Act
ParameterExpressionFingerprint fingerprint = ParameterExpressionFingerprint.Create(expression, context);
// Assert
Assert.IsNull(fingerprint, "Degenerate ParameterExpression cannot be parsed.");
}
public void Create_ModelParameter()
{
// Arrange
ParameterExpression expression = Expression.Parameter(typeof(int), null);
ParserContext context = new ParserContext()
{
ModelParameter = expression
};
// Act
ParameterExpressionFingerprint fingerprint = ParameterExpressionFingerprint.Create(expression, context);
// Assert
Assert.IsNotNull(fingerprint);
}
public void ToExpression()
{
// Arrange
ParameterExpression expression = Expression.Parameter(typeof(int), null);
ParserContext context = new ParserContext()
{
ModelParameter = expression
};
ParameterExpressionFingerprint fingerprint = ParameterExpressionFingerprint.Create(expression, context);
// Act
Expression result = fingerprint.ToExpression(context);
// Assert
Assert.AreEqual(expression, result, "Original model parameter should have been returned.");
}