platform/graphql_parser/test/fragment_spread_test.dart
2018-08-02 08:48:53 -04:00

55 lines
1.6 KiB
Dart

import 'package:graphql_parser/graphql_parser.dart';
import 'package:test/test.dart';
import 'common.dart';
import 'argument_test.dart';
import 'directive_test.dart';
main() {
test('name only', () {
expect(['...foo', '... foo'], everyElement(isFragmentSpread('foo')));
});
test('with directives', () {
expect(
'... foo @bar @baz: 2 @quux(one: 1)',
isFragmentSpread('foo',
directives: isDirectiveList([
isDirective('bar'),
isDirective('baz', valueOrVariable: equals(2)),
isDirective('quux', argument: isArgument('one', 1))
])));
});
}
FragmentSpreadContext parseFragmentSpread(String text) =>
parse(text).parseFragmentSpread();
Matcher isFragmentSpread(String name, {Matcher directives}) =>
new _IsFragmentSpread(name, directives);
class _IsFragmentSpread extends Matcher {
final String name;
final Matcher directives;
_IsFragmentSpread(this.name, this.directives);
@override
Description describe(Description description) {
if (directives != null)
return directives.describe(
description.add('is a fragment spread named "$name" that also '));
return description.add('is a fragment spread named "$name"');
}
@override
bool matches(item, Map matchState) {
var spread =
item is FragmentSpreadContext ? item : parseFragmentSpread(item);
if (spread == null) return false;
if (spread.name != name) return false;
if (directives != null)
return directives.matches(spread.directives, matchState);
else
return true;
}
}