angular-cn/modules/angular2/test/transform/common/ng_meta_test.dart

102 lines
2.8 KiB
Dart

library angular2.test.transform.common.annotation_matcher_test;
import 'package:angular2/src/render/api.dart';
import 'package:angular2/src/transform/common/ng_meta.dart';
import 'package:guinness/guinness.dart';
main() => allTests();
void allTests() {
var mockData = [
new DirectiveMetadata(id: 'm1'),
new DirectiveMetadata(id: 'm2'),
new DirectiveMetadata(id: 'm3'),
new DirectiveMetadata(id: 'm4')
];
it('should allow empty data.', () {
var ngMeta = new NgMeta.empty();
expect(ngMeta.isEmpty).toBeTrue();
});
describe('serialization', () {
it('should parse empty data correctly.', () {
var ngMeta = new NgMeta.fromJson({});
expect(ngMeta.isEmpty).toBeTrue();
});
it('should be lossless', () {
var a = new NgMeta.empty();
a.types['T0'] = mockData[0];
a.types['T1'] = mockData[1];
a.types['T2'] = mockData[2];
a.types['T3'] = mockData[3];
a.aliases['a1'] = ['T1'];
a.aliases['a2'] = ['a1'];
a.aliases['a3'] = ['T3', 'a2'];
a.aliases['a4'] = ['a3', 'T3'];
_checkSimilar(a, new NgMeta.fromJson(a.toJson()));
});
});
describe('flatten', () {
it('should include recursive aliases.', () {
var a = new NgMeta.empty();
a.types['T0'] = mockData[0];
a.types['T1'] = mockData[1];
a.types['T2'] = mockData[2];
a.types['T3'] = mockData[3];
a.aliases['a1'] = ['T1'];
a.aliases['a2'] = ['a1'];
a.aliases['a3'] = ['T3', 'a2'];
a.aliases['a4'] = ['a3', 'T0'];
expect(a.flatten('a4')).toEqual([mockData[3], mockData[1], mockData[0]]);
});
it('should detect cycles.', () {
var a = new NgMeta.empty();
a.types['T0'] = mockData[0];
a.aliases['a1'] = ['T0', 'a1'];
a.aliases['a2'] = ['a1'];
expect(a.flatten('a1')).toEqual([mockData[0]]);
});
});
describe('merge', () {
it('should merge all types on addAll', () {
var a = new NgMeta.empty();
var b = new NgMeta.empty();
a.types['T0'] = mockData[0];
b.types['T1'] = mockData[1];
a.addAll(b);
expect(a.types).toContain('T1');
expect(a.types['T1']).toEqual(mockData[1]);
});
it('should merge all aliases on addAll', () {
var a = new NgMeta.empty();
var b = new NgMeta.empty();
a.aliases['a'] = ['x'];
b.aliases['b'] = ['y'];
a.addAll(b);
expect(a.aliases).toContain('b');
expect(a.aliases['b']).toEqual(['y']);
});
});
}
_checkSimilar(NgMeta a, NgMeta b) {
expect(a.types.length).toEqual(b.types.length);
expect(a.aliases.length).toEqual(b.aliases.length);
for (var k in a.types.keys) {
expect(b.types).toContain(k);
var at = a.types[k];
var bt = b.types[k];
expect(at.id).toEqual(bt.id);
}
for (var k in a.aliases.keys) {
expect(b.aliases).toContain(k);
expect(b.aliases[k]).toEqual(a.aliases[k]);
}
}