public void provide_value_throws_if_expression_is_null()
{
var converterExtension = new ExpressionConverterExtension();
var ex = Assert.Throws <InvalidOperationException>(() => converterExtension.ProvideValue(null));
Assert.Equal("No expression has been provided.", ex.Message);
}
public void provide_value_returns_appropriate_expression_converter()
{
var converterExtension = new ExpressionConverterExtension
{
Expression = "324 * 21 / {0}"
};
var expressionConverter = converterExtension.ProvideValue(null) as ExpressionConverter;
Assert.NotNull(expressionConverter);
Assert.Equal("324 * 21 / {0}", expressionConverter.Expression);
}
public void ctor_sets_expression_to_null()
{
var converterExtension = new ExpressionConverterExtension();
Assert.Null(converterExtension.Expression);
}
public void ctor_that_takes_expression_sets_expression()
{
var converterExtension = new ExpressionConverterExtension("expr");
Assert.Equal("expr", converterExtension.Expression);
}