angular-cn/packages/router/test/url_serializer.spec.ts
Joey Perrott d1ea1f4c7f build: update license headers to reference Google LLC ()
Update the license headers throughout the repository to reference Google LLC
rather than Google Inc, for the required license headers.

PR Close 
2020-05-26 14:26:58 -04:00

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TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {PRIMARY_OUTLET} from '../src/shared';
import {DefaultUrlSerializer, encodeUriFragment, encodeUriQuery, encodeUriSegment, serializePath, UrlSegmentGroup} from '../src/url_tree';
describe('url serializer', () => {
const url = new DefaultUrlSerializer();
it('should parse the root url', () => {
const tree = url.parse('/');
expectSegment(tree.root, '');
expect(url.serialize(tree)).toEqual('/');
});
it('should parse non-empty urls', () => {
const tree = url.parse('one/two');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one/two');
expect(url.serialize(tree)).toEqual('/one/two');
});
it('should parse multiple secondary segments', () => {
const tree = url.parse('/one/two(left:three//right:four)');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one/two');
expectSegment(tree.root.children['left'], 'three');
expectSegment(tree.root.children['right'], 'four');
expect(url.serialize(tree)).toEqual('/one/two(left:three//right:four)');
});
it('should parse top-level nodes with only secondary segment', () => {
const tree = url.parse('/(left:one)');
expect(tree.root.numberOfChildren).toEqual(1);
expectSegment(tree.root.children['left'], 'one');
expect(url.serialize(tree)).toEqual('/(left:one)');
});
it('should parse nodes with only secondary segment', () => {
const tree = url.parse('/one/(left:two)');
const one = tree.root.children[PRIMARY_OUTLET];
expectSegment(one, 'one', true);
expect(one.numberOfChildren).toEqual(1);
expectSegment(one.children['left'], 'two');
expect(url.serialize(tree)).toEqual('/one/(left:two)');
});
it('should not parse empty path segments with params', () => {
expect(() => url.parse('/one/two/(;a=1//right:;b=2)'))
.toThrowError(/Empty path url segment cannot have parameters/);
});
it('should parse scoped secondary segments', () => {
const tree = url.parse('/one/(two//left:three)');
const primary = tree.root.children[PRIMARY_OUTLET];
expectSegment(primary, 'one', true);
expectSegment(primary.children[PRIMARY_OUTLET], 'two');
expectSegment(primary.children['left'], 'three');
expect(url.serialize(tree)).toEqual('/one/(two//left:three)');
});
it('should parse scoped secondary segments with unscoped ones', () => {
const tree = url.parse('/one/(two//left:three)(right:four)');
const primary = tree.root.children[PRIMARY_OUTLET];
expectSegment(primary, 'one', true);
expectSegment(primary.children[PRIMARY_OUTLET], 'two');
expectSegment(primary.children['left'], 'three');
expectSegment(tree.root.children['right'], 'four');
expect(url.serialize(tree)).toEqual('/one/(two//left:three)(right:four)');
});
it('should parse secondary segments that have children', () => {
const tree = url.parse('/one(left:two/three)');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one');
expectSegment(tree.root.children['left'], 'two/three');
expect(url.serialize(tree)).toEqual('/one(left:two/three)');
});
it('should parse an empty secondary segment group', () => {
const tree = url.parse('/one()');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one');
expect(url.serialize(tree)).toEqual('/one');
});
it('should parse key-value matrix params', () => {
const tree = url.parse('/one;a=11a;b=11b(left:two;c=22//right:three;d=33)');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one;a=11a;b=11b');
expectSegment(tree.root.children['left'], 'two;c=22');
expectSegment(tree.root.children['right'], 'three;d=33');
expect(url.serialize(tree)).toEqual('/one;a=11a;b=11b(left:two;c=22//right:three;d=33)');
});
it('should parse key only matrix params', () => {
const tree = url.parse('/one;a');
expectSegment(tree.root.children[PRIMARY_OUTLET], 'one;a=');
expect(url.serialize(tree)).toEqual('/one;a=');
});
it('should parse query params (root)', () => {
const tree = url.parse('/?a=1&b=2');
expect(tree.root.children).toEqual({});
expect(tree.queryParams).toEqual({a: '1', b: '2'});
expect(url.serialize(tree)).toEqual('/?a=1&b=2');
});
it('should parse query params', () => {
const tree = url.parse('/one?a=1&b=2');
expect(tree.queryParams).toEqual({a: '1', b: '2'});
});
it('should parse query params when with parenthesis', () => {
const tree = url.parse('/one?a=(11)&b=(22)');
expect(tree.queryParams).toEqual({a: '(11)', b: '(22)'});
});
it('should parse query params when with slashes', () => {
const tree = url.parse('/one?a=1/2&b=3/4');
expect(tree.queryParams).toEqual({a: '1/2', b: '3/4'});
});
it('should parse key only query params', () => {
const tree = url.parse('/one?a');
expect(tree.queryParams).toEqual({a: ''});
});
it('should parse a value-empty query param', () => {
const tree = url.parse('/one?a=');
expect(tree.queryParams).toEqual({a: ''});
});
it('should parse value-empty query params', () => {
const tree = url.parse('/one?a=&b=');
expect(tree.queryParams).toEqual({a: '', b: ''});
});
it('should serializer query params', () => {
const tree = url.parse('/one?a');
expect(url.serialize(tree)).toEqual('/one?a=');
});
it('should handle multiple query params of the same name into an array', () => {
const tree = url.parse('/one?a=foo&a=bar&a=swaz');
expect(tree.queryParams).toEqual({a: ['foo', 'bar', 'swaz']});
expect(tree.queryParamMap.get('a')).toEqual('foo');
expect(tree.queryParamMap.getAll('a')).toEqual(['foo', 'bar', 'swaz']);
expect(url.serialize(tree)).toEqual('/one?a=foo&a=bar&a=swaz');
});
it('should parse fragment', () => {
const tree = url.parse('/one#two');
expect(tree.fragment).toEqual('two');
expect(url.serialize(tree)).toEqual('/one#two');
});
it('should parse fragment (root)', () => {
const tree = url.parse('/#one');
expectSegment(tree.root, '');
expect(url.serialize(tree)).toEqual('/#one');
});
it('should parse empty fragment', () => {
const tree = url.parse('/one#');
expect(tree.fragment).toEqual('');
expect(url.serialize(tree)).toEqual('/one#');
});
describe('encoding/decoding', () => {
it('should encode/decode path segments and parameters', () => {
const u = `/${encodeUriSegment('one two')};${encodeUriSegment('p 1')}=${
encodeUriSegment('v 1')};${encodeUriSegment('p 2')}=${encodeUriSegment('v 2')}`;
const tree = url.parse(u);
expect(tree.root.children[PRIMARY_OUTLET].segments[0].path).toEqual('one two');
expect(tree.root.children[PRIMARY_OUTLET].segments[0].parameters)
.toEqual({['p 1']: 'v 1', ['p 2']: 'v 2'});
expect(url.serialize(tree)).toEqual(u);
});
it('should encode/decode "slash" in path segments and parameters', () => {
const u = `/${encodeUriSegment('one/two')};${encodeUriSegment('p/1')}=${
encodeUriSegment('v/1')}/three`;
const tree = url.parse(u);
const segment = tree.root.children[PRIMARY_OUTLET].segments[0];
expect(segment.path).toEqual('one/two');
expect(segment.parameters).toEqual({'p/1': 'v/1'});
expect(segment.parameterMap.get('p/1')).toEqual('v/1');
expect(segment.parameterMap.getAll('p/1')).toEqual(['v/1']);
expect(url.serialize(tree)).toEqual(u);
});
it('should encode/decode query params', () => {
const u = `/one?${encodeUriQuery('p 1')}=${encodeUriQuery('v 1')}&${encodeUriQuery('p 2')}=${
encodeUriQuery('v 2')}`;
const tree = url.parse(u);
expect(tree.queryParams).toEqual({'p 1': 'v 1', 'p 2': 'v 2'});
expect(tree.queryParamMap.get('p 1')).toEqual('v 1');
expect(tree.queryParamMap.get('p 2')).toEqual('v 2');
expect(url.serialize(tree)).toEqual(u);
});
it('should decode spaces in query as %20 or +', () => {
const u1 = `/one?foo=bar baz`;
const u2 = `/one?foo=bar+baz`;
const u3 = `/one?foo=bar%20baz`;
const u1p = url.parse(u1);
const u2p = url.parse(u2);
const u3p = url.parse(u3);
expect(url.serialize(u1p)).toBe(url.serialize(u2p));
expect(url.serialize(u2p)).toBe(url.serialize(u3p));
expect(u1p.queryParamMap.get('foo')).toBe('bar baz');
expect(u2p.queryParamMap.get('foo')).toBe('bar baz');
expect(u3p.queryParamMap.get('foo')).toBe('bar baz');
});
it('should encode query params leaving sub-delimiters intact', () => {
const percentChars = '/?#&+=[] ';
const percentCharsEncoded = '%2F%3F%23%26%2B%3D%5B%5D%20';
const intactChars = '!$\'()*,;:';
const params = percentChars + intactChars;
const paramsEncoded = percentCharsEncoded + intactChars;
const mixedCaseString = 'sTrInG';
expect(percentCharsEncoded).toEqual(encodeUriQuery(percentChars));
expect(intactChars).toEqual(encodeUriQuery(intactChars));
// Verify it replaces repeated characters correctly
expect(paramsEncoded + paramsEncoded).toEqual(encodeUriQuery(params + params));
// Verify it doesn't change the case of alpha characters
expect(mixedCaseString + paramsEncoded).toEqual(encodeUriQuery(mixedCaseString + params));
});
it('should encode/decode fragment', () => {
const u = `/one#${encodeUriFragment('one two=three four')}`;
const tree = url.parse(u);
expect(tree.fragment).toEqual('one two=three four');
expect(url.serialize(tree)).toEqual('/one#one%20two=three%20four');
});
});
describe('special character encoding/decoding', () => {
// Tests specific to https://github.com/angular/angular/issues/10280
it('should parse encoded parens in matrix params', () => {
const auxRoutesUrl = '/abc;foo=(other:val)';
const fooValueUrl = '/abc;foo=%28other:val%29';
const auxParsed = url.parse(auxRoutesUrl).root;
const fooParsed = url.parse(fooValueUrl).root;
// Test base case
expect(auxParsed.children[PRIMARY_OUTLET].segments.length).toBe(1);
expect(auxParsed.children[PRIMARY_OUTLET].segments[0].path).toBe('abc');
expect(auxParsed.children[PRIMARY_OUTLET].segments[0].parameters).toEqual({foo: ''});
expect(auxParsed.children['other'].segments.length).toBe(1);
expect(auxParsed.children['other'].segments[0].path).toBe('val');
// Confirm matrix params are URL decoded
expect(fooParsed.children[PRIMARY_OUTLET].segments.length).toBe(1);
expect(fooParsed.children[PRIMARY_OUTLET].segments[0].path).toBe('abc');
expect(fooParsed.children[PRIMARY_OUTLET].segments[0].parameters).toEqual({
foo: '(other:val)'
});
});
it('should serialize encoded parens in matrix params', () => {
const testUrl = '/abc;foo=%28one%29';
const parsed = url.parse(testUrl);
expect(url.serialize(parsed)).toBe('/abc;foo=%28one%29');
});
it('should not serialize encoded parens in query params', () => {
const testUrl = '/abc?foo=%28one%29';
const parsed = url.parse(testUrl);
expect(parsed.queryParams).toEqual({foo: '(one)'});
expect(url.serialize(parsed)).toBe('/abc?foo=(one)');
});
// Test special characters in general
// From http://www.ietf.org/rfc/rfc3986.txt
const unreserved = `abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._~`;
it('should encode a minimal set of special characters in queryParams', () => {
const notEncoded = unreserved + `:@!$'*,();`;
const encode = ` +%&=#[]/?`;
const encoded = `%20%2B%25%26%3D%23%5B%5D%2F%3F`;
const parsed = url.parse('/foo');
parsed.queryParams = {notEncoded, encode};
expect(url.serialize(parsed)).toBe(`/foo?notEncoded=${notEncoded}&encode=${encoded}`);
});
it('should encode a minimal set of special characters in fragment', () => {
const notEncoded = unreserved + `:@!$'*,();+&=#/?`;
const encode = ' %<>`"[]';
const encoded = `%20%25%3C%3E%60%22%5B%5D`;
const parsed = url.parse('/foo');
parsed.fragment = notEncoded + encode;
expect(url.serialize(parsed)).toBe(`/foo#${notEncoded}${encoded}`);
});
it('should encode minimal special characters plus parens and semi-colon in matrix params',
() => {
const notEncoded = unreserved + `:@!$'*,&`;
const encode = ` /%=#()[];?+`;
const encoded = `%20%2F%25%3D%23%28%29%5B%5D%3B%3F%2B`;
const parsed = url.parse('/foo');
parsed.root.children[PRIMARY_OUTLET].segments[0].parameters = {notEncoded, encode};
expect(url.serialize(parsed)).toBe(`/foo;notEncoded=${notEncoded};encode=${encoded}`);
});
it('should encode special characters in the path the same as matrix params', () => {
const notEncoded = unreserved + `:@!$'*,&`;
const encode = ` /%=#()[];?+`;
const encoded = `%20%2F%25%3D%23%28%29%5B%5D%3B%3F%2B`;
const parsed = url.parse('/foo');
parsed.root.children[PRIMARY_OUTLET].segments[0].path = notEncoded + encode;
expect(url.serialize(parsed)).toBe(`/${notEncoded}${encoded}`);
});
it('should correctly encode ampersand in segments', () => {
const testUrl = '/parent&child';
const parsed = url.parse(testUrl);
expect(url.serialize(parsed)).toBe(testUrl);
});
});
describe('error handling', () => {
it('should throw when invalid characters inside children', () => {
expect(() => url.parse('/one/(left#one)'))
.toThrowError('Cannot parse url \'/one/(left#one)\'');
});
it('should throw when missing closing )', () => {
expect(() => url.parse('/one/(left')).toThrowError('Cannot parse url \'/one/(left\'');
});
});
});
function expectSegment(
segment: UrlSegmentGroup, expected: string, hasChildren: boolean = false): void {
if (segment.segments.filter(s => s.path === '').length > 0) {
throw new Error(`UrlSegments cannot be empty ${segment.segments}`);
}
const p = segment.segments.map(p => serializePath(p)).join('/');
expect(p).toEqual(expected);
expect(Object.keys(segment.children).length > 0).toEqual(hasChildren);
}