public virtual IEnumerable <T> Get(string q)
{
var query = PredicateHelper.Create <T>(q);
var db = new NorthwindDbContext();
var result = db.Set <T>().Where(query).ToList();
return(result);
}
public void Datetime_Tests()
{
var foo = new Foo()
{
DateTime = new DateTime(2000, 12, 31),
};
Assert.True(PredicateHelper.Create <Foo>("DateTime.Year = 2000")(foo));
Assert.True(PredicateHelper.Create <Foo>("NullableDateTimeNull = null")(foo)); Assert.True(PredicateHelper.Create <Foo>("NullableDateTimeHasValue.Year = 2000")(foo));
}
public void Defense_Null_And_Empty()
{
Assert.True(PredicateHelper.Create <Person>(null)(Person.New()));
Assert.True(PredicateHelper.Create <Person>("")(Person.New()));
}
public void String_Tests()
{
Assert.True(PredicateHelper.Create <Person>("Name = Ahmed Þeref")(Person.New(Name: "Ahmed Þeref")));
}
public void Null_Queries()
{
Assert.True(PredicateHelper.Create <Person>("Name = null")(Person.New(Name: null)));
Assert.True(PredicateHelper.Create <Person>("Name != null")(Person.New(Name: "Ahmed")));
Assert.False(PredicateHelper.Create <Person>("Name != null")(Person.New(Name: null)));
}
public void Complex_Queries(string command, Person person, bool expected)
{
Func <Person, bool> predicate = PredicateHelper.Create <Person>(command);
Assert.Equal(expected, predicate(person));
}
public void Simple_Queries(string command, Person person, bool expected)
{
Assert.Equal(expected, PredicateHelper.Create <Person>(command)(person));
}
public void String_Queries()
{
Assert.True(PredicateHelper.Create <string>("Length = 0")(string.Empty));
Assert.False(PredicateHelper.Create <string>("@ = Ahmed")("ahmed"));
Assert.True(PredicateHelper.Create <string>("@ = Ahmed")("Ahmed"));
}
public void Integer_Queries(string q, int val, bool expected)
{
Assert.Equal(expected, PredicateHelper.Create <int>(q)(val));
}
