public void CollectionsAlternateMutationMethods()
{
var family = Family.Create();
var familyAdd1 = family.AddMembers(Person.Create("billy", age: 5));
Assert.Equal(0, family.Members.Count);
Assert.Equal(1, familyAdd1.Members.Count);
var familyAdd1More = familyAdd1.AddMembers(Person.Create("sally", age: 8));
Assert.Equal(2, familyAdd1More.Members.Count);
var familyRemove1 = familyAdd1More.RemoveMembers(familyAdd1.Members[0]);
Assert.Equal(2, familyAdd1More.Members.Count);
Assert.Equal(1, familyRemove1.Members.Count);
var familyAddMany = familyAdd1.AddMembers(
Person.Create("sally", age: 8),
Person.Create("sam", age: 4));
Assert.Equal(3, familyAddMany.Members.Count);
var familyRemoveMany = familyAddMany.RemoveMembers(familyAdd1More.Members);
Assert.Equal(1, familyRemoveMany.Members.Count);
var familyCleared = familyAddMany.RemoveMembers();
Assert.Equal(0, familyCleared.Members.Count);
}
public void DefaultValues()
{
// We expect Members to be non-null because we have a partial class defined that specifies that.
var family = Family.Create();
Assert.NotNull(family.Members);
Assert.Equal(0, family.Members.Count);
}
public void DefaultValuesCanBeOverriddenWithOtherValue()
{
Assert.NotNull(Family.Create().Members); // the test is only valid if the default value is non-null
var otherMembers = ImmutableSortedSet.Create(Person.Create("bill"));
Assert.Same(otherMembers, Family.Create(members: otherMembers).Members);
Assert.Same(otherMembers, Family.Create().WithMembers(otherMembers).Members);
}
public void BuildersWithCollectionsShouldUseCollectionBuilders()
{
var billy = Person.Create(name: "billy");
var familyBuilder = Family.Create().ToBuilder();
familyBuilder.Members.Add(billy);
var family = familyBuilder.ToImmutable();
Assert.Contains(billy, family.Members);
}
public void ImmutableCollection()
{
var members = ImmutableSortedSet.Create <Person>();
var family = Family.Create(members: members);
Assert.Same(members, family.Members);
var newMembers = family.Members.Add(Person.Create("bill"));
Assert.Same(members, family.Members);
Assert.NotSame(newMembers, members);
var newFamily = family.WithMembers(newMembers);
Assert.Same(newMembers, newFamily.Members);
}
public void DefaultValuesCanBeOverriddenWithTypeDefaults()
{
Assert.NotNull(Family.Create().Members); // the test is only valid if the default value is non-null
Assert.Null(Family.Create(members: null).Members);
Assert.Null(Family.Create().WithMembers((ImmutableSortedSet <Person>)null).Members);
}