angular-cn/modules/@angular/facade/test/lang_spec.ts

152 lines
5.3 KiB
TypeScript

import {beforeEach, ddescribe, describe, expect, iit, it, xit} from '@angular/core/testing';
import {RegExpMatcherWrapper, RegExpWrapper, StringWrapper, hasConstructor, isPresent, resolveEnumToken} from '../src/lang';
enum UsefulEnum {
MyToken,
MyOtherToken
}
class MySuperclass {}
class MySubclass extends MySuperclass {}
export function main() {
describe('RegExp', () => {
it('should expose the index for each match', () => {
var re = /(!)/g;
var matcher = RegExpWrapper.matcher(re, '0!23!567!!');
var indexes: any[] /** TODO #9100 */ = [];
var m: any /** TODO #9100 */;
while (isPresent(m = RegExpMatcherWrapper.next(matcher))) {
indexes.push(m.index);
expect(m[0]).toEqual('!');
expect(m[1]).toEqual('!');
expect(m.length).toBe(2);
}
expect(indexes).toEqual([1, 4, 8, 9]);
});
it('should reset before it is reused', () => {
var re = /^['"]/g;
var str = '\'';
expect(RegExpWrapper.test(re, str)).toEqual(true);
// If not reset, the second attempt to test results in false
expect(RegExpWrapper.test(re, str)).toEqual(true);
});
it('should implement replace all', () => {
let re = /(\d)+/g;
let m =
RegExpWrapper.replaceAll(re, 'a1b2c', (match: any /** TODO #9100 */) => `!${match[1]}!`);
expect(m).toEqual('a!1!b!2!c');
});
});
describe('const', () => {
it('should support const expressions both in TS and Dart', () => {
const numbers = /*@ts2dart_const*/[1, 2, 3];
expect(numbers).toEqual([1, 2, 3]);
});
});
describe('String', () => {
var s: any /** TODO #9100 */;
describe('slice', () => {
beforeEach(() => { s = 'abcdefghij'; });
it('should return the whole string if neither start nor end are specified',
() => { expect(StringWrapper.slice(s)).toEqual('abcdefghij'); });
it('should return up to the end if end is not specified',
() => { expect(StringWrapper.slice(s, 1)).toEqual('bcdefghij'); });
it('should support negative start',
() => { expect(StringWrapper.slice(s, -1)).toEqual('j'); });
it('should support negative end',
() => { expect(StringWrapper.slice(s, -3, -1)).toEqual('hi'); });
it('should return empty string if start is greater than end', () => {
expect(StringWrapper.slice(s, 4, 2)).toEqual('');
expect(StringWrapper.slice(s, -2, -4)).toEqual('');
});
});
describe('stripLeft', () => {
it('should strip the first character of the string if it matches the provided input', () => {
var input = '~angular2 is amazing';
var expectedOutput = 'angular2 is amazing';
expect(StringWrapper.stripLeft(input, '~')).toEqual(expectedOutput);
});
it('should keep stripping characters from the start until the first unmatched character',
() => {
var input = '#####hello';
var expectedOutput = 'hello';
expect(StringWrapper.stripLeft(input, '#')).toEqual(expectedOutput);
});
it('should not alter the provided input if the first character does not match the provided input',
() => {
var input = '+angular2 is amazing';
expect(StringWrapper.stripLeft(input, '*')).toEqual(input);
});
it('should not do any alterations when an empty string or null value is passed in', () => {
expect(StringWrapper.stripLeft('', 'S')).toEqual('');
expect(StringWrapper.stripLeft(null, 'S')).toEqual(null);
});
});
describe('stripRight', () => {
it('should strip the first character of the string if it matches the provided input', () => {
var input = 'angular2 is amazing!';
var expectedOutput = 'angular2 is amazing';
expect(StringWrapper.stripRight(input, '!')).toEqual(expectedOutput);
});
it('should not alter the provided input if the first character does not match the provided input',
() => {
var input = 'angular2 is amazing+';
expect(StringWrapper.stripRight(input, '*')).toEqual(input);
});
it('should keep stripping characters from the end until the first unmatched character',
() => {
var input = 'hi&!&&&&&';
var expectedOutput = 'hi&!';
expect(StringWrapper.stripRight(input, '&')).toEqual(expectedOutput);
});
it('should not do any alterations when an empty string or null value is passed in', () => {
expect(StringWrapper.stripRight('', 'S')).toEqual('');
expect(StringWrapper.stripRight(null, 'S')).toEqual(null);
});
});
describe('resolveEnumToken', () => {
it('should resolve a token given an enum and index values', () => {
var token = UsefulEnum.MyToken;
expect(resolveEnumToken(UsefulEnum, token)).toEqual('MyToken');
token = UsefulEnum.MyOtherToken;
expect(resolveEnumToken(UsefulEnum, token)).toEqual('MyOtherToken');
});
});
describe('hasConstructor', () => {
it('should be true when the type matches',
() => { expect(hasConstructor(new MySuperclass(), MySuperclass)).toEqual(true); });
it('should be false for subtypes',
() => { expect(hasConstructor(new MySubclass(), MySuperclass)).toEqual(false); });
});
});
}