public void Factory_creates_expected_comparer(Type expectedComparer, string property)
{
using var context = new GodzillaContext();
var factory = new CurrentValueComparerFactory();
Assert.IsType(expectedComparer, factory.Create(context.Model.FindEntityType(typeof(Godzilla)).FindProperty(property)));
}
public void Factory_throws_if_model_and_provider_type_are_not_comparable()
{
using var context = new GodzillaContext();
var factory = new CurrentValueComparerFactory();
Assert.Equal(
CoreStrings.NonComparableKeyTypes(
nameof(Godzilla), nameof(Godzilla.NotComparableConverted), nameof(NotComparable), nameof(NotComparable)),
Assert.Throws <InvalidOperationException>(
() => factory.Create(
context.Model.FindEntityType(typeof(Godzilla)).FindProperty(nameof(Godzilla.NotComparableConverted)))).Message);
}
private void CanSortNullable(
string propertyName,
Func <byte[], Godzilla> generator,
Func <Godzilla, byte[]> selector)
{
using var context = new GodzillaContext();
context.AttachRange(
generator(null), generator(new byte[] { 9 }),
generator(null), generator(new byte[] { 3, 3, 3 }),
generator(new byte[] { 1, 1 }), generator(new byte[] { 9 }), generator(new byte[] { 7 }), generator(new byte[] { 3, 3 }));
var comparer = context.Model
.FindEntityType(typeof(Godzilla))
.FindProperty(propertyName)
.GetCurrentValueComparer();
var entries = context.ChangeTracker.Entries <Godzilla>()
.OrderBy(e => e.GetInfrastructure(), comparer)
.Select(e => selector(e.Entity))
.ToList();
Assert.Equal(
new[]
{
null,
null,
new byte[] { 7 },
new byte[] { 9 },
new byte[] { 9 },
new byte[] { 1, 1 },
new byte[] { 3, 3 },
new byte[] { 3, 3, 3 }
},
entries);
}
private void CanSort(
string propertyName,
Func <int, Godzilla> generator,
Func <Godzilla, int> selector)
{
using var context = new GodzillaContext();
context.AttachRange(
generator(0), generator(9),
generator(0), generator(3),
generator(1), generator(9), generator(7), generator(3));
var comparer = context.Model
.FindEntityType(typeof(Godzilla))
.FindProperty(propertyName)
.GetCurrentValueComparer();
var entries = context.ChangeTracker.Entries <Godzilla>()
.OrderBy(e => e.GetInfrastructure(), comparer)
.Select(e => selector(e.Entity))
.ToList();
Assert.Equal(new[] { 0, 0, 1, 3, 3, 7, 9, 9 }, entries);
}
