76 lines
2 KiB
Dart
76 lines
2 KiB
Dart
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import 'package:graphql_parser/graphql_parser.dart';
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import 'package:test/test.dart';
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import 'common.dart';
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import 'type_test.dart';
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import 'value_test.dart';
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main() {
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test('no default value', () {
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expect(r'$foo: bar',
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isVariableDefinition('foo', type: isType('bar', isNullable: true)));
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});
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test('default value', () {
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expect(
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r'$foo: int! = 2',
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isVariableDefinition('foo',
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type: isType('int', isNullable: false), defaultValue: isValue(2)));
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});
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test('exceptions', () {
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expect(() => parseVariableDefinition(r'$foo'), throwsSyntaxError);
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expect(() => parseVariableDefinition(r'$foo:'), throwsSyntaxError);
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expect(() => parseVariableDefinition(r'$foo: int ='), throwsSyntaxError);
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});
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}
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VariableDefinitionContext parseVariableDefinition(String text) =>
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parse(text).parseVariableDefinition();
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Matcher isVariableDefinition(String name,
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{Matcher type, Matcher defaultValue}) =>
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new _IsVariableDefinition(name, type, defaultValue);
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class _IsVariableDefinition extends Matcher {
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final String name;
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final Matcher type, defaultValue;
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_IsVariableDefinition(this.name, this.type, this.defaultValue);
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@override
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Description describe(Description description) {
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var desc = description.add('is variable definition with name "$name"');
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if (type != null) {
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desc = type.describe(desc.add(' with type that '));
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}
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if (defaultValue != null) {
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desc = type.describe(desc.add(' with default value that '));
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}
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return desc;
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}
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@override
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bool matches(item, Map matchState) {
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var def = item is VariableDefinitionContext
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? item
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: parseVariableDefinition(item);
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if (def == null) return false;
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if (def.variable.name != name) return false;
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bool result = true;
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if (type != null) {
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result == result && type.matches(def.type, matchState);
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}
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if (defaultValue != null) {
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result =
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result && defaultValue.matches(def.defaultValue.value, matchState);
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}
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return result;
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}
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}
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