public static IReadOnlyList <EnumType> Collect(ISchema schema, DocumentNode node)
{
var visitor = new CollectUsedEnumTypesVisitor();
visitor._schema = schema;
visitor.Visit(node, null);
return(visitor._enumTypes.OfType <EnumType>().ToArray());
}
public void Collect_EnumTypes_None_Found()
{
// arrange
ISchema schema = CreateSchema();
DocumentNode document = Utf8GraphQLParser.Parse(
@"
{
droid(id: ""foo"") {
name
}
}
");
// act
IReadOnlyList <EnumType> enumTypes =
CollectUsedEnumTypesVisitor.Collect(schema, document);
// assert
Assert.Empty(enumTypes);
}
public void Collect_EnumTypes_Found_One_In_Field_Return_Type()
{
// arrange
ISchema schema = CreateSchema();
DocumentNode document = Utf8GraphQLParser.Parse(
@"
{
droid(id: ""foo"") {
appearsIn
}
}
");
// act
IReadOnlyList <EnumType> enumTypes =
CollectUsedEnumTypesVisitor.Collect(schema, document);
// assert
Assert.Collection(enumTypes,
t => Assert.Equal("Episode", t.Name));
}
public void Collect_EnumTypes_Found_One_In_Argument()
{
// arrange
ISchema schema = CreateSchema();
DocumentNode document = Utf8GraphQLParser.Parse(
@"
query getHero($e: Episode) {
hero(episode: $e) {
name
}
}
");
// act
IReadOnlyList <EnumType> enumTypes =
CollectUsedEnumTypesVisitor.Collect(schema, document);
// assert
Assert.Collection(enumTypes,
t => Assert.Equal("Episode", t.Name));
}
