public void Nullable()
{
var list = new List <TargetWithNullable>
{
new TargetWithNullable
{
Field = null
},
new TargetWithNullable
{
Field = 10
}
};
var resultFromString = list
.Where(FuncBuilder <TargetWithNullable> .BuildPredicate("Field", Comparison.Equal, new[] { "10" }))
.Single();
Assert.Equal(10, resultFromString.Field);
var nullResult = list
.Where(FuncBuilder <TargetWithNullable> .BuildPredicate("Field", Comparison.Equal, null))
.Single();
Assert.Null(nullResult.Field);
}
static IEnumerable <TItem> ApplyToAll <TItem>(this IEnumerable <TItem> items, Func <Type, string, object> getArguments)
{
if (ArgumentReader.TryReadId(getArguments, out var values))
{
var predicate = FuncBuilder <TItem> .BuildPredicate("Id", Comparison.In, values);
items = items.Where(predicate);
}
foreach (var where in ArgumentReader.ReadWhere(getArguments))
{
var predicate = FuncBuilder <TItem> .BuildPredicate(where);
items = items.Where(predicate);
}
items = Order(items, getArguments);
if (ArgumentReader.TryReadSkip(getArguments, out var skip))
{
items = items.Skip(skip);
}
if (ArgumentReader.TryReadTake(getArguments, out var take))
{
items = items.Take(take);
}
return(items);
}
public void Nullable_requiring_parse()
{
var guid = Guid.Parse("00000000-0000-0000-0000-000000000001");
var list = new List <TargetWithNullableRequiringParse>
{
new TargetWithNullableRequiringParse
{
Field = null
},
new TargetWithNullableRequiringParse
{
Field = guid
}
};
var resultFromString = list
.Where(FuncBuilder <TargetWithNullableRequiringParse> .BuildPredicate("Field", Comparison.Equal, new[] { guid.ToString() }))
.Single();
Assert.Equal(guid, resultFromString.Field);
var nullResult = list
.Where(FuncBuilder <TargetWithNullableRequiringParse> .BuildPredicate("Field", Comparison.Equal, null))
.Single();
Assert.Null(nullResult.Field);
}
public void Field()
{
var list = new List <TargetWithField>
{
new TargetWithField
{
Field = "Target1"
},
new TargetWithField
{
Field = "Target2"
}
};
var result = list
.Where(FuncBuilder <TargetWithField> .BuildPredicate("Field", Comparison.Equal, new[] { "Target2" }))
.Single();
Assert.Equal("Target2", result.Field);
}
public void NotInGuidList()
{
var list = new List <TargetForInGuid>
{
new TargetForInGuid
{
Member = Guid.Parse("00000000-0000-0000-0000-000000000001")
},
new TargetForInGuid
{
Member = Guid.Parse("00000000-0000-0000-0000-000000000002")
}
};
var result = list
.Where(FuncBuilder <TargetForInGuid> .BuildPredicate("Member", Comparison.NotIn, new[] { "00000000-0000-0000-0000-000000000002" }))
.Single();
Assert.Same(list[0], result);
}
public void NotInList()
{
var list = new List <TargetForIn>
{
new TargetForIn
{
Member = "Value1"
},
new TargetForIn
{
Member = "Value2"
}
};
var result = list
.Where(FuncBuilder <TargetForIn> .BuildPredicate("Member", Comparison.NotIn, new[] { "Value2" }))
.Single();
Assert.Equal("Value1", result.Member);
}
public void Nested()
{
var list = new List <Target>
{
new Target
{
Member = "a"
},
new Target
{
Member = "bb"
}
};
var result = list
.Where(FuncBuilder <Target> .BuildPredicate("Member.Length", Comparison.Equal, new[] { "2" }))
.Single();
Assert.Equal("bb", result.Member);
}
public void NotInIntList()
{
var list = new List <TargetForInInt>
{
new TargetForInInt
{
Member = 1
},
new TargetForInInt
{
Member = 2
}
};
var result = list
.Where(FuncBuilder <TargetForInInt> .BuildPredicate("Member", Comparison.NotIn, new[] { "2" }))
.Single();
Assert.Equal(1, result.Member);
}
public void Combos(string name, Comparison expression, string value, string expectedName, StringComparison?stringComparison)
{
var people = new List <Person>
{
new Person
{
Name = "Person 1",
Age = 12,
DateOfBirth = new DateTime(2001, 10, 10, 10, 10, 10, DateTimeKind.Utc)
},
new Person
{
Name = "Person 2",
Age = 13,
DateOfBirth = new DateTime(2000, 10, 10, 10, 10, 10, DateTimeKind.Utc)
}
};
var result = people
.Where(FuncBuilder <Person> .BuildPredicate(name, expression, new[] { value }, stringComparison))
.Single();
Assert.Equal(expectedName, result.Name);
}