public async Task Interface_With_Fragments()
{
// arrange
var path = HotChocolate.Path.New("root");
DocumentNode document = Utf8GraphQLParser.Parse(
FileResource.Open("Multiple_Fragments_Query.graphql"));
var operation = document.Definitions
.OfType <OperationDefinitionNode>()
.First();
var field = operation.SelectionSet.Selections
.OfType <FieldNode>()
.First();
var query = new QueryDescriptor(
"Simple_Query",
"Foo.Bar.Ns",
"1234",
"12345",
new byte[] { 1, 2, 3 },
document);
var schema = SchemaBuilder.New()
.AddDocumentFromString(FileResource.Open("StarWars.graphql"))
.Use(next => context => Task.CompletedTask)
.Create();
var context = new ModelGeneratorContext(
schema,
query,
"StarWarsClient",
"Foo.Bar.Ns");
var character = schema.GetType <InterfaceType>("Character");
// act
var generator = new InterfaceModelGenerator();
generator.Generate(
context,
operation,
character,
character,
field,
context.CollectFields(character, field.SelectionSet, path),
path);
// assert
var typeLookup = new TypeLookup(
LanguageVersion.CSharp_8_0,
CollectFieldsVisitor.MockLookup(document, context.FieldTypes),
"Foo.Bar");
string output = await WriteAllAsync(context.Descriptors, typeLookup);
output.MatchSnapshot();
}
private void GenerateFieldSelectionSet(
OperationDefinitionNode operation,
IType fieldType,
FieldNode fieldSelection,
Path path,
Queue <FieldSelection> backlog)
{
var namedType = (INamedOutputType)fieldType.NamedType();
PossibleSelections possibleSelections =
_fieldCollector.CollectFields(
namedType,
fieldSelection.SelectionSet !,
path);
foreach (SelectionInfo selectionInfo in possibleSelections.Variants)
{
EnqueueFields(backlog, selectionInfo.Fields, path);
}
if (namedType is UnionType unionType)
{
_unionModelGenerator.Generate(
_context,
operation,
unionType,
fieldType,
fieldSelection,
possibleSelections,
path);
}
else if (namedType is InterfaceType interfaceType)
{
_interfaceModelGenerator.Generate(
_context,
operation,
interfaceType,
fieldType,
fieldSelection,
possibleSelections,
path);
}
else if (namedType is ObjectType objectType)
{
_objectModelGenerator.Generate(
_context,
operation,
objectType,
fieldType,
fieldSelection,
possibleSelections,
path);
}
}