platform/graphql_parser/test/issue23_test.dart
2019-08-07 22:45:51 -04:00

94 lines
3.2 KiB
Dart

import 'package:graphql_parser/graphql_parser.dart';
import 'package:test/test.dart';
/// This is an *extremely* verbose test, but basically it
/// parses both documents, and makes sure that $memberId has
/// a valid value.
///
/// Resolves https://github.com/angel-dart/graphql/issues/23.
void main() {
void testStr<T>(String name, String text) {
test('name', () {
final List<Token> tokens = scan(text);
final Parser parser = Parser(tokens);
if (parser.errors.isNotEmpty) {
print(parser.errors.toString());
}
expect(parser.errors, isEmpty);
// Parse the GraphQL document using recursive descent
final DocumentContext doc = parser.parseDocument();
expect(doc.definitions, isNotNull);
expect(doc.definitions, isNotEmpty);
// Sanity check
var queryDef = doc.definitions[0] as OperationDefinitionContext;
expect(queryDef.isQuery, true);
expect(queryDef.name, 'customerMemberAttributes');
expect(queryDef.variableDefinitions.variableDefinitions, hasLength(1));
var memberIdDef = queryDef.variableDefinitions.variableDefinitions[0];
expect(memberIdDef.variable.name, 'memberId');
// Find $memberId
var customerByCustomerId = queryDef.selectionSet.selections[0];
var customerMemberAttributesByCustomerId =
customerByCustomerId.field.selectionSet.selections[0];
var nodes0 =
customerMemberAttributesByCustomerId.field.selectionSet.selections[0];
var customerMemberAttributeId = nodes0.field.selectionSet.selections[0];
expect(customerMemberAttributeId.field.fieldName.name,
'customerMemberAttributeId');
var memberAttr = nodes0.field.selectionSet.selections[1];
expect(memberAttr.field.fieldName.name,
'memberAttributesByCustomerMemberAttributeId');
expect(memberAttr.field.arguments, hasLength(1));
var condition = memberAttr.field.arguments[0];
expect(condition.name, 'condition');
expect(condition.value, TypeMatcher<ObjectValueContext>());
var conditionValue = condition.value as ObjectValueContext;
var memberId =
conditionValue.fields.singleWhere((f) => f.NAME.text == 'memberId');
expect(memberId.value, TypeMatcher<T>());
print('Found \$memberId: Instance of $T');
});
}
testStr<VariableContext>('member id as var', memberIdAsVar);
testStr<NumberValueContext>('member id as constant', memberIdAsConstant);
}
final String memberIdAsVar = r'''
query customerMemberAttributes($memberId: Int!){
customerByCustomerId(customerId: 7) {
customerMemberAttributesByCustomerId {
nodes {
customerMemberAttributeId
memberAttributesByCustomerMemberAttributeId(condition: {memberId: $memberId}) {
nodes {
memberAttributeId
}
}
}
}
}
}
''';
final String memberIdAsConstant = r'''
query customerMemberAttributes($memberId: Int!){
customerByCustomerId(customerId: 7) {
customerMemberAttributesByCustomerId {
nodes {
customerMemberAttributeId
memberAttributesByCustomerMemberAttributeId(condition: {memberId: 7}) {
nodes {
memberAttributeId
}
}
}
}
}
}
''';