public void ParseFilter_ForRunDto()
{
// arrange
var filter = "((Date gt '2020-02-02') and (Distance lt 5)) OR (Latitude eq 5.5)";
// act
Expression <Func <RunDto, bool> > predicate = QueryStringParser.ParseFilter <RunDto>(filter);
// assert
predicate.Should().NotBeNull();
predicate.Body.ToString().Should().BeEquivalentTo("(((Param_0.Date > 02/02/2020 00:00:00) And (Param_0.Distance < 5)) Or (Convert(Param_0.Latitude, Decimal) == 5.5))");
}
public void ParseFilter_ForUserDto()
{
// arrange
var filter = "((userName eq 'Test') or (userName eq '1')) and (id ne 'abc')";
// act
Expression <Func <UserDto, bool> > predicate = QueryStringParser.ParseFilter <UserDto>(filter);
// assert
predicate.Should().NotBeNull();
predicate.Body.ToString().Should().BeEquivalentTo("(((Param_0.UserName == \"Test\") Or (Param_0.UserName == \"1\")) And (Param_0.Id != \"abc\"))");
}
/// <summary>
/// parses string filter to DTO predicate
/// </summary>
/// <param name="filter">string filter</param>
/// <typeparam name="TDto">DTO entity</typeparam>
/// <returns></returns>
/// <exception cref="JoggingTrackerBadRequestException"></exception>
public static Expression <Func <TDto, bool> > GetFilterPredicate <TDto>(string filter = null) where TDto : class
{
Expression <Func <TDto, bool> > result = x => true;
if (!string.IsNullOrWhiteSpace(filter))
{
try
{
result = QueryStringParser.ParseFilter <TDto>(filter);
}
catch (Exception e)
{
throw new JoggingTrackerBadRequestException($"{ErrorMessages.CouldntParseFilter} {e.Message}");
}
}
return(result);
}
public void ParseFilter_ForUserDto_InvalidPropertyName_ThrowsException()
{
var filter = "((invalidName eq 'test') or (userName eq '1')) and id ne 'abc'";
Assert.Throws <OperationInvalidException>(() => QueryStringParser.ParseFilter <UserDto>(filter));
}