public void CanBindInitializedCustomIndirectlyDerivedIEnumerableList()
{
// A field declared as IEnumerable<T> that is instantiated with a class
// that indirectly implements IEnumerable<T> is still bound, but with
// a new List<T> with the original values copied over.
var input = new Dictionary <string, string>
{
{ "AlreadyInitializedCustomListIndirectlyDerivedFromIEnumerable:0", "val0" },
{ "AlreadyInitializedCustomListIndirectlyDerivedFromIEnumerable:1", "val1" },
};
var configurationBuilder = new ConfigurationBuilder();
configurationBuilder.AddInMemoryCollection(input);
var config = configurationBuilder.Build();
var options = new InitializedCollectionsOptions();
config.Bind(options);
var array = options.AlreadyInitializedCustomListIndirectlyDerivedFromIEnumerable.ToArray();
Assert.Equal(4, array.Length);
Assert.Equal("Item1", array[0]);
Assert.Equal("Item2", array[1]);
Assert.Equal("val0", array[2]);
Assert.Equal("val1", array[3]);
}
public void CanBindInitializedIEnumerableAndTheOriginalItemsAreNotMutated()
{
var input = new Dictionary <string, string>
{
{ "AlreadyInitializedIEnumerableInterface:0", "val0" },
{ "AlreadyInitializedIEnumerableInterface:1", "val1" },
{ "AlreadyInitializedIEnumerableInterface:2", "val2" },
{ "AlreadyInitializedIEnumerableInterface:x", "valx" }
};
var configurationBuilder = new ConfigurationBuilder();
configurationBuilder.AddInMemoryCollection(input);
var config = configurationBuilder.Build();
var options = new InitializedCollectionsOptions();
config.Bind(options);
var array = options.AlreadyInitializedIEnumerableInterface.ToArray();
Assert.Equal(6, array.Length);
Assert.Equal("This was here too", array[0]);
Assert.Equal("Don't touch me!", array[1]);
Assert.Equal("val0", array[2]);
Assert.Equal("val1", array[3]);
Assert.Equal("val2", array[4]);
Assert.Equal("valx", array[5]);
// the original list hasn't been touched
Assert.Equal(2, options.ListUsedInIEnumerableFieldAndShouldNotBeTouched.Count);
Assert.Equal("This was here too", options.ListUsedInIEnumerableFieldAndShouldNotBeTouched.ElementAt(0));
Assert.Equal("Don't touch me!", options.ListUsedInIEnumerableFieldAndShouldNotBeTouched.ElementAt(1));
}
