test/unit/test-url.js - main - githubmirror/amphtml

test/unit/test-url.js
1 079 строк31 KB
Daniel Rozenberg
✅ Fix tests broken by changes from https://twitter.com/ to https://x.com/ (#40016)
20 май 2024, 20:12
20 май 2024, 20:12d15fbae
import {Services} from '#service';

import {
  addMissingParamsToUrl,
  addParamToUrl,
  addParamsToUrl,
  appendPathToUrl,
  assertAbsoluteHttpOrHttpsUrl,
  assertHttpsUrl,
  getCorsUrl,
  getProxyServingType,
  getSourceOrigin,
  getSourceUrl,
  getWinOrigin,
  isLocalhostOrigin,
  isProtocolValid,
  isProxyOrigin,
  isSecureUrlDeprecated,
  parseUrlDeprecated,
  removeAmpJsParamsFromUrl,
  removeFragment,
  removeParamsFromSearch,
  removeSearch,
  resolveRelativeUrl,
  resolveRelativeUrlFallback_,
  serializeQueryString,
} from '../../src/url';

describes.sandboxed('getWinOrigin', {}, () => {
  it('should return origin if available', () => {
    expect(
      getWinOrigin({
        'origin': 'https://foo.com',
        'location': {
          'href': 'https://foo1.com/abc?123#foo',
        },
      })
    ).to.equal('https://foo.com');
  });

  it('should return origin from href when win.origin is not available', () => {
    expect(
      getWinOrigin({
        'location': {
          'href': 'https://foo1.com/abc?123#foo',
        },
      })
    ).to.equal('https://foo1.com');
  });

  it('should return origin from href when win.origin is empty', () => {
    expect(
      getWinOrigin({
        'origin': '',
        'location': {
          'href': 'https://foo1.com/abc?123#foo',
        },
      })
    ).to.equal('https://foo1.com');
  });

  it('should return origin from href when win.origin is null', () => {
    expect(
      getWinOrigin({
        'origin': null,
        'location': {
          'href': 'https://foo1.com/abc?123#foo',
        },
      })
    ).to.equal('https://foo1.com');
  });

  it('should return "null" when win.origin is "null"', () => {
    expect(
      getWinOrigin({
        'origin': 'null',
        'location': {
          'href': 'https://foo1.com/abc?123#foo',
        },
      })
    ).to.equal('null');
  });
});

describes.sandboxed('parseUrlDeprecated', {}, () => {
  const currentPort = location.port;

  function compareParse(url, result) {
    // Using JSON string comparison because Chai's deeply equal
    // errors are impossible to debug.
    const parsed = JSON.stringify(parseUrlDeprecated(url));
    const expected = JSON.stringify(result);
    expect(parsed).to.equal(expected);
  }

  it('should parse correctly', () => {
    compareParse('https://foo.com/abc?123#foo', {
      href: 'https://foo.com/abc?123#foo',
      protocol: 'https:',
      host: 'foo.com',
      hostname: 'foo.com',
      port: '',
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'https://foo.com',
    });
  });
  it('caches results', () => {
    const url = 'https://foo.com:123/abc?123#foo';
    parseUrlDeprecated(url);
    const a1 = parseUrlDeprecated(url);
    const a2 = parseUrlDeprecated(url);
    expect(a1).to.equal(a2);
  });

  it('caches up to 100 results', () => {
    const url = 'https://foo.com:123/abc?123#foo';
    const a1 = parseUrlDeprecated(url);

    // should grab url from the cache
    expect(a1).to.equal(parseUrlDeprecated(url));

    // cache 99 more urls in order to reach max capacity of LRU cache: 100
    for (let i = 0; i < 100; i++) {
      parseUrlDeprecated(`${url}-${i}`);
    }

    const a2 = parseUrlDeprecated(url);

    // the old cached url should not be in the cache anymore
    // the newer instance should
    expect(a1).to.not.equal(parseUrlDeprecated(url));
    expect(a2).to.equal(parseUrlDeprecated(url));
    expect(a1).to.not.equal(a2);
  });
  it('should handle ports', () => {
    compareParse('https://foo.com:123/abc?123#foo', {
      href: 'https://foo.com:123/abc?123#foo',
      protocol: 'https:',
      host: 'foo.com:123',
      hostname: 'foo.com',
      port: '123',
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'https://foo.com:123',
    });
  });
  it('should omit HTTP default port', () => {
    compareParse('http://foo.com:80/abc?123#foo', {
      href: 'http://foo.com/abc?123#foo',
      protocol: 'http:',
      host: 'foo.com',
      hostname: 'foo.com',
      port: '',
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'http://foo.com',
    });
  });
  it('should omit HTTPS default port', () => {
    compareParse('https://foo.com:443/abc?123#foo', {
      href: 'https://foo.com/abc?123#foo',
      protocol: 'https:',
      host: 'foo.com',
      hostname: 'foo.com',
      port: '',
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'https://foo.com',
    });
  });
  it('should support http', () => {
    compareParse('http://foo.com:123/abc?123#foo', {
      href: 'http://foo.com:123/abc?123#foo',
      protocol: 'http:',
      host: 'foo.com:123',
      hostname: 'foo.com',
      port: '123',
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'http://foo.com:123',
    });
  });
  it('should resolve relative urls', () => {
    compareParse('./abc?123#foo', {
      href: 'http://localhost:' + currentPort + '/abc?123#foo',
      protocol: 'http:',
      host: 'localhost:' + currentPort,
      hostname: 'localhost',
      port: currentPort,
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'http://localhost:' + currentPort,
    });
  });
  it('should resolve path relative urls', () => {
    compareParse('/abc?123#foo', {
      href: 'http://localhost:' + currentPort + '/abc?123#foo',
      protocol: 'http:',
      host: 'localhost:' + currentPort,
      hostname: 'localhost',
      port: currentPort,
      pathname: '/abc',
      search: '?123',
      hash: '#foo',
      origin: 'http://localhost:' + currentPort,
    });
  });
  it('should handle URLs with just the domain', () => {
    compareParse('http://foo.com:123', {
      href: 'http://foo.com:123/',
      protocol: 'http:',
      host: 'foo.com:123',
      hostname: 'foo.com',
      port: '123',
      pathname: '/',
      search: '',
      hash: '',
      origin: 'http://foo.com:123',
    });
  });
  it('should parse origin https://x.com/path#abc', () => {
    expect(parseUrlDeprecated('https://x.com/path#abc').origin).to.equal(
      'https://x.com'
    );
  });

  it('should parse origin data:12345', () => {
    expect(parseUrlDeprecated('data:12345').origin).to.equal('data:12345');
  });

  it('should parse relative', () => {
    expect(parseUrlDeprecated('chilaquiles/rojos')).to.include({
      pathname: '/chilaquiles/rojos',
    });
  });
});

describes.sandboxed('serializeQueryString', {}, () => {
  it('should return empty string for empty params', () => {
    expect(serializeQueryString({})).to.equal('');
    expect(
      serializeQueryString({
        nullValue: null,
        undefValue: undefined,
      })
    ).to.equal('');
  });
  it('should serialize a single value', () => {
    expect(serializeQueryString({a: 'A'})).to.equal('a=A');
  });
  it('should serialize multiple values', () => {
    expect(serializeQueryString({a: 'A', b: 'B'})).to.equal('a=A&b=B');
  });
  it('should coerce to string', () => {
    expect(serializeQueryString({a: 1, b: true})).to.equal('a=1&b=true');
  });
  it('should encode values and keys', () => {
    expect(serializeQueryString({'a+b': 'A+B'})).to.equal('a%2Bb=A%2BB');
  });
  it('should serialize multiple valued parameters', () => {
    expect(serializeQueryString({a: [1, 2, 3], b: true})).to.equal(
      'a=1&a=2&a=3&b=true'
    );
  });
});

describes.sandboxed('assertHttpsUrl/isSecureUrl', {}, () => {
  const referenceElement = document.createElement('div');
  it('should NOT allow null or undefined, but allow empty string', () => {
    allowConsoleError(() => {
      expect(() => {
        assertHttpsUrl(null, referenceElement);
      }).to.throw(/source must be available/);
      expect(() => {
        assertHttpsUrl(undefined, referenceElement);
      }).to.throw(/source must be available/);
    });
    assertHttpsUrl('', referenceElement);
  });
  it('should allow https', () => {
    assertHttpsUrl('https://x.com', referenceElement);
    expect(isSecureUrlDeprecated('https://x.com')).to.be.true;
  });
  it('should allow protocol relative', () => {
    assertHttpsUrl('//x.com', referenceElement);
    // `isSecureUrl` always resolves relative URLs.
    expect(isSecureUrlDeprecated('//x.com')).to.be.equal(
      window.location.protocol == 'https:'
    );
  });
  it('should allow localhost with http', () => {
    assertHttpsUrl('http://localhost:8000/sfasd', referenceElement);
    expect(isSecureUrlDeprecated('http://localhost:8000/sfasd')).to.be.true;
  });
  it('should allow localhost with http suffix', () => {
    assertHttpsUrl('http://iframe.localhost:8000/sfasd', referenceElement);
    expect(isSecureUrlDeprecated('http://iframe.localhost:8000/sfasd')).to.be
      .true;
  });

  it('should fail on http', () => {
    allowConsoleError(() => {
      expect(() => {
        assertHttpsUrl('http://x.com', referenceElement);
      }).to.throw(/source must start with/);
    });
    expect(isSecureUrlDeprecated('http://x.com')).to.be.false;
  });
  it('should fail on http with localhost in the name', () => {
    allowConsoleError(() => {
      expect(() => {
        assertHttpsUrl('http://foolocalhost', referenceElement);
      }).to.throw(/source must start with/);
    });
    expect(isSecureUrlDeprecated('http://foolocalhost')).to.be.false;
  });
});

describes.sandboxed('assertAbsoluteHttpOrHttpsUrl', {}, () => {
  it('should allow http', () => {
    expect(assertAbsoluteHttpOrHttpsUrl('http://x.com/')).to.equal(
      'http://x.com/'
    );
    expect(assertAbsoluteHttpOrHttpsUrl('HTTP://x.com/')).to.equal(
      'http://x.com/'
    );
  });
  it('should allow https', () => {
    expect(assertAbsoluteHttpOrHttpsUrl('https://x.com/')).to.equal(
      'https://x.com/'
    );
    expect(assertAbsoluteHttpOrHttpsUrl('HTTPS://x.com/')).to.equal(
      'https://x.com/'
    );
  });
  it('should fail on relative protocol', () => {
    allowConsoleError(() => {
      expect(() => {
        assertAbsoluteHttpOrHttpsUrl('//x.com/');
      }).to.throw(/URL must start with/);
    });
  });
  it('should fail on relative url', () => {
    allowConsoleError(() => {
      expect(() => {
        assertAbsoluteHttpOrHttpsUrl('/path');
      }).to.throw(/URL must start with/);
    });
  });
  it('should fail on not allowed protocol', () => {
    allowConsoleError(() => {
      expect(() => {
        assertAbsoluteHttpOrHttpsUrl(
          /*eslint no-script-url: 0*/ 'javascript:alert'
        );
      }).to.throw(/URL must start with/);
    });
  });
});

describes.sandboxed('removeFragment', {}, () => {
  it('should remove fragment', () => {
    expect(removeFragment('https://x.com/path#abc')).to.equal(
      'https://x.com/path'
    );
  });
  it('should remove empty fragment', () => {
    expect(removeFragment('https://x.com/path#')).to.equal(
      'https://x.com/path'
    );
  });
  it('should ignore when no fragment', () => {
    expect(removeFragment('https://x.com/path')).to.equal('https://x.com/path');
  });
});

describes.sandboxed('removeSearch', {}, () => {
  it('should remove search', () => {
    expect(removeSearch('https://x.com/path?abc')).to.equal(
      'https://x.com/path'
    );
  });
  it('should remove search with value', () => {
    expect(removeSearch('https://x.com/path?abc=123')).to.equal(
      'https://x.com/path'
    );
  });
  it('should remove multiple params', () => {
    expect(removeSearch('https://x.com/path?abc=123&d&e=4')).to.equal(
      'https://x.com/path'
    );
  });
  it('should remove empty search', () => {
    expect(removeSearch('https://x.com/path?')).to.equal('https://x.com/path');
  });
  it('should ignore when no search', () => {
    expect(removeSearch('https://x.com/path')).to.equal('https://x.com/path');
  });
  it('should preserve fragment', () => {
    expect(removeSearch('https://x.com/path?abc#f')).to.equal(
      'https://x.com/path#f'
    );
  });
  it('should preserve fragment with multiple params', () => {
    expect(removeSearch('https://x.com/path?a&d=1&e=5#f=x')).to.equal(
      'https://x.com/path#f=x'
    );
  });
  it('should preserve fragment when no search', () => {
    expect(removeSearch('https://x.com/path#f')).to.equal(
      'https://x.com/path#f'
    );
  });
  it('should handle empty fragment', () => {
    expect(removeSearch('https://x.com/path#')).to.equal('https://x.com/path#');
    expect(removeSearch('https://x.com/path?#')).to.equal(
      'https://x.com/path#'
    );
  });
});

describes.sandboxed('addParamToUrl', {}, () => {
  let url;

  beforeEach(() => {
    url = 'https://www.ampproject.org/get/here#hash-value';
  });

  it('should preserve hash value', () => {
    url = addParamToUrl(url, 'elementId', 'n1');
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?elementId=n1#hash-value'
    );

    url = addParamToUrl(url, 'ampUserId', '12345');
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?elementId=n1&ampUserId=12345#hash-value'
    );
  });

  it('should preserve query values', () => {
    url = 'https://www.ampproject.org/get/here?hello=world&foo=bar';

    url = addParamToUrl(url, 'elementId', 'n1');
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?hello=world&foo=bar&elementId=n1'
    );
    url = addParamToUrl(url, 'ampUserId', '12345');
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?hello=world&foo=bar&elementId=n1&ampUserId=12345'
    );
  });

  it('should optionally add params to the front', () => {
    let url = addParamToUrl(
      'https://www.ampproject.org/get/here?hello=world&foo=bar',
      'elementId',
      'n1',
      /* addToFront */ true
    );
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?elementId=n1&hello=world&foo=bar'
    );

    url = addParamToUrl(
      'https://www.ampproject.org/get/here',
      'elementId',
      'n1',
      /* addToFront */ true
    );
    expect(url).to.equal('https://www.ampproject.org/get/here?elementId=n1');
  });

  it('should encode uri values', () => {
    url = addParamToUrl(url, 'foo', 'b ar');
    expect(url).to.equal(
      'https://www.ampproject.org/get/here?foo=b%20ar#hash-value'
    );
  });

  it('should keep host and path intact', () => {
    url = addParamToUrl('https://${host}/${path}', 'foo', 'bar');
    expect(url).to.equal('https://${host}/${path}?foo=bar');
  });
});

describes.sandboxed('addParamsToUrl', {}, () => {
  let url;
  const params = {
    hello: 'world',
    foo: 'bar',
  };

  beforeEach(() => {
    url = 'https://www.ampproject.org/get/here#hash-value';
  });

  it('should loop over the keys and values correctly', () => {
    url = addParamsToUrl(url, params);

    expect(url).to.equal(
      'https://www.ampproject.org/get/here?hello=world&foo=bar#hash-value'
    );

    expect(
      addParamsToUrl('http://example.com', {
        firstname: 'Cool',
        lastname: 'Beans',
        interests: ['Basketball', 'Food', 'Running'],
      })
    ).to.equal(
      'http://example.com?firstname=Cool&lastname=Beans&' +
        'interests=Basketball&interests=Food&interests=Running'
    );
  });

  it('should keep host and path intact', () => {
    url = addParamsToUrl('https://${host}/${path}#hash-value', params);

    expect(url).to.equal(
      'https://${host}/${path}?hello=world&foo=bar#hash-value'
    );
  });
});

describes.sandboxed('addMissingParamsToUrl', {}, () => {
  let url;
  const params = {
    hello: 'world',
    foo: 'bar',
    replace: 'error',
    safe: 'error',
  };
  beforeEach(() => {
    url = 'https://www.ampproject.org/get/here?replace=1&safe#hash-value';
  });

  it('should not replace existing params', () => {
    expect(addMissingParamsToUrl(url, params)).to.equal(
      'https://www.ampproject.org/get/here?replace=1&safe&hello=world&foo=bar#hash-value'
    );
  });
});

describes.sandboxed('isProxyOrigin', {}, () => {
  function testProxyOrigin(href, bool) {
    it(
      'should return that ' +
        href +
        (bool ? ' is' : ' is not') +
        ' a proxy origin',
      () => {
        expect(isProxyOrigin(parseUrlDeprecated(href))).to.equal(bool);
      }
    );
  }

  // CDN
  testProxyOrigin('https://cdn.ampproject.org/', true);
  testProxyOrigin('http://cdn.ampproject.org/', false);
  testProxyOrigin('https://cdn.ampproject.org.badguys.com/', false);
  testProxyOrigin('https://cdn.ampproject.orgbadguys.com/', false);
  testProxyOrigin('https://cdn.ampproject.org:1234', false);
  testProxyOrigin('https://cdn.ampproject.org/v/www.origin.com/foo/?f=0', true);
  testProxyOrigin('https://cdn.ampproject.org/c/www.origin.com/foo/?f=0', true);

  // Prefixed CDN
  testProxyOrigin('https://xyz.cdn.ampproject.org/', true);
  testProxyOrigin('http://xyz.cdn.ampproject.org/', false);
  testProxyOrigin('https://xyz-123.cdn.ampproject.org/', true);
  testProxyOrigin(
    'https://xyz.cdn.ampproject.org/v/www.origin.com/foo/?f=0',
    true
  );
  testProxyOrigin(
    'https://xyz.cdn.ampproject.org/c/www.origin.com/foo/?f=0',
    true
  );

  // Others
  testProxyOrigin('http://localhost:123', false);
  testProxyOrigin(
    'https://cdn.ampproject.net/v/www.origin.com/foo/?f=0',
    false
  );
  testProxyOrigin(
    'https://medium.com/swlh/nobody-wants-your-app-6af1f7f69cb7',
    false
  );
  testProxyOrigin(
    'http://www.spiegel.de/politik/deutschland/angela-merkel-a-1062761.html',
    false
  );
});

describes.sandboxed('isLocalhostOrigin', {}, () => {
  function testLocalhostOrigin(href, bool) {
    it(
      'should return that ' +
        href +
        (bool ? ' is' : ' is not') +
        ' a localhost origin',
      () => {
        expect(isLocalhostOrigin(parseUrlDeprecated(href))).to.equal(bool);
      }
    );
  }

  testLocalhostOrigin('http://localhost', true);
  testLocalhostOrigin('https://localhost', true);
  testLocalhostOrigin('http://localhost:123/foo.html', true);
  testLocalhostOrigin('https://localhost:123/foo.html', true);
  testLocalhostOrigin('http://localhost.example.com/foo.html', false);
  testLocalhostOrigin('http://www.example.com/foo.html', false);
});

describes.sandboxed('isProtocolValid', {}, () => {
  function testProtocolValid(href, bool) {
    it(
      'should return that ' +
        href +
        (bool ? ' is' : ' is not') +
        ' a valid protocol',
      () => {
        expect(isProtocolValid(href)).to.equal(bool);
      }
    );
  }

  testProtocolValid('http://foo.com', true);
  testProtocolValid('https://foo.com', true);
  testProtocolValid('bar://foo.com', true);
  testProtocolValid('', true);
  testProtocolValid('foo', true);
  testProtocolValid('./foo', true);
  testProtocolValid('/foo', true);
  testProtocolValid('//foo.com', true);
  testProtocolValid(undefined, true);
  testProtocolValid(null, true);
  testProtocolValid('javascript:alert("hello world!");', false);
  testProtocolValid('data:12345', false);
  testProtocolValid('vbscript:foo', false);
});

describes.sandboxed('getSourceOrigin/Url', {}, () => {
  function testOrigin(href, sourceHref) {
    it('should return the source origin/url from ' + href, () => {
      expect(getSourceUrl(href)).to.equal(sourceHref);
      expect(getSourceOrigin(href)).to.equal(
        parseUrlDeprecated(sourceHref).origin
      );
    });
  }

  // CDN.
  testOrigin(
    'https://cdn.ampproject.org/v/www.origin.com/foo/?f=0#h',
    'http://www.origin.com/foo/?f=0#h'
  );
  testOrigin(
    'https://cdn.ampproject.org/v/s/www.origin.com/foo/?f=0#h',
    'https://www.origin.com/foo/?f=0#h'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/www.origin.com/foo/?f=0',
    'http://www.origin.com/foo/?f=0'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/s/www.origin.com/foo/?f=0',
    'https://www.origin.com/foo/?f=0'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/s/origin.com/foo/?f=0',
    'https://origin.com/foo/?f=0'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/s/origin.com%3A81/foo/?f=0',
    'https://origin.com:81/foo/?f=0'
  );
  testOrigin(
    'https://cdn.ampproject.org/a/www.origin.com/foo/?f=0#h',
    'http://www.origin.com/foo/?f=0#h'
  );
  testOrigin(
    'https://cdn.ampproject.org/ad/www.origin.com/foo/?f=0#h',
    'http://www.origin.com/foo/?f=0#h'
  );

  // Prefixed CDN
  testOrigin(
    'https://xyz.cdn.ampproject.org/v/www.origin.com/foo/?f=0#h',
    'http://www.origin.com/foo/?f=0#h'
  );
  testOrigin(
    'https://xyz.cdn.ampproject.org/v/s/www.origin.com/foo/?f=0#h',
    'https://www.origin.com/foo/?f=0#h'
  );
  testOrigin(
    'https://xyz.cdn.ampproject.org/c/www.origin.com/foo/?f=0',
    'http://www.origin.com/foo/?f=0'
  );
  testOrigin(
    'https://xyz.cdn.ampproject.org/c/s/www.origin.com/foo/?f=0',
    'https://www.origin.com/foo/?f=0'
  );
  testOrigin(
    'https://xyz.cdn.ampproject.org/c/s/origin.com/foo/?f=0',
    'https://origin.com/foo/?f=0'
  );
  testOrigin(
    'https://xyz.cdn.ampproject.org/c/s/origin.com%3A81/foo/?f=0',
    'https://origin.com:81/foo/?f=0'
  );

  // Removes amp-related paramters.
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?amp_js_param=5',
    'http://o.com/foo/'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f=0&amp_js_v=5#something',
    'http://o.com/foo/?f=0#something'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?amp_js_v=5&f=0#bar',
    'http://o.com/foo/?f=0#bar'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f=0&amp_js_param=5&d=5#baz',
    'http://o.com/foo/?f=0&d=5#baz'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f_amp_js_param=5&d=5',
    'http://o.com/foo/?f_amp_js_param=5&d=5'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?amp_js_param=5?d=5',
    'http://o.com/foo/'
  ); // Treats amp_js_param=5?d=5 as one param.
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/&amp_js_param=5&d=5',
    'http://o.com/foo/&amp_js_param=5&d=5'
  ); // Treats &... as part of path.
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?amp_r=test%3Dhello%20world',
    'http://o.com/foo/'
  );

  // Removes google experimental queryString parameters.
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?usqp=mq331AQCCAE',
    'http://o.com/foo/'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?usqp=mq331AQCCAE&amp_js_param=5',
    'http://o.com/foo/'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?amp_js_param=5&usqp=mq331AQCCAE',
    'http://o.com/foo/'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?usqp=mq331AQCCAE&bar=1&amp_js_param=5',
    'http://o.com/foo/?bar=1'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f=0&usqp=mq331AQCCAE#something',
    'http://o.com/foo/?f=0#something'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?usqp=mq331AQCCAE&f=0#bar',
    'http://o.com/foo/?f=0#bar'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f=0&usqp=mq331AQCCAE&d=5#baz',
    'http://o.com/foo/?f=0&d=5#baz'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?f_usqp=mq331AQCCAE&d=5',
    'http://o.com/foo/?f_usqp=mq331AQCCAE&d=5'
  );
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/?usqp=mq331AQCCAE?d=5',
    'http://o.com/foo/'
  ); // Treats amp_js_param=5?d=5 as one param.
  testOrigin(
    'https://cdn.ampproject.org/c/o.com/foo/&usqp=mq331AQCCAE&d=5',
    'http://o.com/foo/&usqp=mq331AQCCAE&d=5'
  ); // Treats &... as part of path.

  // Non-CDN.
  testOrigin('https://origin.com/foo/?f=0', 'https://origin.com/foo/?f=0');

  it('should fail on invalid source origin', () => {
    allowConsoleError(() => {
      expect(() => {
        getSourceOrigin(
          parseUrlDeprecated('https://cdn.ampproject.org/v/yyy/')
        );
      }).to.throw(/Expected a \. in origin http:\/\/yyy/);
    });
  });
});

describes.sandboxed('resolveRelativeUrl', {}, () => {
  function testRelUrl(href, baseHref, resolvedHref) {
    it(
      'should return the resolved rel url from ' +
        href +
        ' with base ' +
        baseHref,
      () => {
        expect(resolveRelativeUrl(href, baseHref)).to.equal(
          resolvedHref,
          'native or fallback'
        );
        expect(resolveRelativeUrlFallback_(href, baseHref)).to.equal(
          resolvedHref,
          'fallback'
        );
      }
    );
  }

  // Absolute URL.
  testRelUrl(
    'https://acme.org/path/file?f=0#h',
    'https://base.org/bpath/bfile?bf=0#bh',
    'https://acme.org/path/file?f=0#h'
  );
  testRelUrl(
    'data:12345',
    'https://base.org/bpath/bfile?bf=0#bh',
    'data:12345'
  );

  // Protocol-relative URL.
  testRelUrl(
    '//acme.org/path/file?f=0#h',
    'https://base.org/bpath/bfile?bf=0#bh',
    'https://acme.org/path/file?f=0#h'
  );
  testRelUrl(
    '//acme.org/path/file?f=0#h',
    'http://base.org/bpath/bfile?bf=0#bh',
    'http://acme.org/path/file?f=0#h'
  );

  // Absolute path.
  testRelUrl(
    '/path/file?f=0#h',
    'https://base.org/bpath/bfile?bf=0#bh',
    'https://base.org/path/file?f=0#h'
  );
  testRelUrl(
    '/path/file?f=0#h',
    'http://base.org/bpath/bfile?bf=0#bh',
    'http://base.org/path/file?f=0#h'
  );
  testRelUrl(
    '\\path/file?f=0#h',
    'http://base.org/bpath/bfile?bf=0#bh',
    'http://base.org/path/file?f=0#h'
  );

  // Relative path.
  testRelUrl(
    'file?f=0#h',
    'https://base.org/bpath/bfile?bf=0#bh',
    'https://base.org/bpath/file?f=0#h'
  );
  testRelUrl(
    'file?f=0#h',
    'http://base.org/bpath/bfile?bf=0#bh',
    'http://base.org/bpath/file?f=0#h'
  );

  testRelUrl(
    'file?f=0#h',
    'https://base.org/bfile?bf=0#bh',
    'https://base.org/file?f=0#h'
  );
  testRelUrl(
    'file?f=0#h',
    'http://base.org/bfile?bf=0#bh',
    'http://base.org/file?f=0#h'
  );

  // Accepts parsed URLs.
  testRelUrl(
    'file?f=0#h',
    parseUrlDeprecated('http://base.org/bfile?bf=0#bh'),
    'http://base.org/file?f=0#h'
  );
});

describes.sandboxed('getCorsUrl', {}, () => {
  it('should error if __amp_source_origin is set', () => {
    allowConsoleError(() => {
      expect(() =>
        getCorsUrl(window, 'http://example.com/?__amp_source_origin')
      ).to.throw(/Source origin is not allowed in/);
    });
    expect(() =>
      getCorsUrl(window, 'http://example.com/?name=hello')
    ).to.not.throw();
  });

  it('should set __amp_source_origin as a url param', () => {
    expect(getCorsUrl(window, 'http://example.com/?name=hello')).to.equal(
      'http://example.com/?name=hello&' +
        '__amp_source_origin=http%3A%2F%2Flocalhost%3A9876'
    );
  });
});

describes.sandboxed('removeAmpJsParamsFromUrl', {}, () => {
  it('should handle unaffected URLs', () => {
    expect(removeAmpJsParamsFromUrl('http://example.com')).to.equal(
      'http://example.com/'
    );
    expect(removeAmpJsParamsFromUrl('http://example.com?x=123')).to.equal(
      'http://example.com/?x=123'
    );
    expect(removeAmpJsParamsFromUrl('http://example.com#x=123')).to.equal(
      'http://example.com/#x=123'
    );
    expect(removeAmpJsParamsFromUrl('http://example.com?y=abc#x=123')).to.equal(
      'http://example.com/?y=abc#x=123'
    );
  });

  it('should remove all internal params', () => {
    expect(
      removeAmpJsParamsFromUrl(
        'http://example.com?amp_js=1&amp_gsa=2&amp_r=3&amp_kit=4&usqp=4'
      )
    ).to.equal('http://example.com/');
    expect(
      removeAmpJsParamsFromUrl(
        'http://example.com?amp_js&amp_gsa&amp_r&amp_kit&usqp'
      )
    ).to.equal('http://example.com/');
  });

  it('should remove all internal params, leaving others intact', () => {
    expect(
      removeAmpJsParamsFromUrl(
        'http://example.com?a=a&amp_js=1&b=b&amp_gsa=2&c=c&amp_r=3&amp_kit=4&d=d&usqp=4&e=e'
      )
    ).to.equal('http://example.com/?a=a&b=b&c=c&d=d&e=e');
  });

  it('should preserve the fragment', () => {
    expect(
      removeAmpJsParamsFromUrl(
        'http://example.com?a=a&amp_js=1&b=b&amp_gsa=2&c=c&amp_r=3&amp_kit=4&d=d&usqp=4&e=e#frag=yes'
      )
    ).to.equal('http://example.com/?a=a&b=b&c=c&d=d&e=e#frag=yes');
  });

  it('should preserve the path', () => {
    expect(
      removeAmpJsParamsFromUrl(
        'http://example.com/toast?a=a&amp_js=1&b=b&amp_gsa=2&c=c&amp_r=3&amp_kit=4&d=d&usqp=4&e=e#frag=yes'
      )
    ).to.equal('http://example.com/toast?a=a&b=b&c=c&d=d&e=e#frag=yes');
  });
});

describes.sandboxed('removeParamsFromSearch', {}, () => {
  it('should remove the leading ? or &', () => {
    expect(removeParamsFromSearch('?a=1&', 'a')).to.equal('');
  });

  it('should remove the param from searchUrl', () => {
    expect(removeParamsFromSearch('?a=1&b=2&c', 'a')).to.equal('?b=2&c');
  });

  it('should remove all param with same name from searchUrl', () => {
    expect(removeParamsFromSearch('?a=1&b=2&a=2&a=3&c&ab=3', 'a')).to.equal(
      '?b=2&c&ab=3'
    );
  });
});

describes.sandboxed('getProxyServingType', {}, () => {
  it('should ignore non-proxy origins', () => {
    expect(getProxyServingType('http://www.example.com')).to.be.null;
    expect(getProxyServingType('http://cdn.ampproject.org/c/o.com/foo/')).to.be
      .null;
  });

  it('should correctly extract known types', () => {
    expect(
      getProxyServingType('https://cdn.ampproject.org/c/o.com/foo/')
    ).to.equal('c');
    expect(
      getProxyServingType('https://cdn.ampproject.org/a/o.com/foo/')
    ).to.equal('a');
    expect(
      getProxyServingType('https://cdn.ampproject.org/v/o.com/foo/')
    ).to.equal('v');
  });

  it('should correctly extract unknown types', () => {
    expect(
      getProxyServingType('https://cdn.ampproject.org/test/o.com/foo/')
    ).to.equal('test');
    expect(
      getProxyServingType('https://not.cdn.ampproject.org/test/o.com/foo/')
    ).to.equal('test');
    expect(
      getProxyServingType('https://not.cdn.ampproject.org/test/blah.com/foo/')
    ).to.equal('test');
  });
});

describes.realWin('appendPathToUrl', {'amp': true}, (env) => {
  let urlService;
  beforeEach(() => {
    urlService = Services.urlForDoc(env.win.document.body);
  });

  it('should properly join url and path', () => {
    expect(
      appendPathToUrl(urlService.parse('https://cdn.ampproject.org'), '/foo')
    ).to.be.equal('https://cdn.ampproject.org/foo');
  });

  it('should join url and path if none contain /', () => {
    expect(
      appendPathToUrl(urlService.parse('https://cdn.ampproject.org'), 'foo')
    ).to.be.equal('https://cdn.ampproject.org/foo');
  });

  it('should properly join url with path, and path', () => {
    expect(
      appendPathToUrl(
        urlService.parse('https://cdn.ampproject.org/bar/'),
        '/foo'
      )
    ).to.be.equal('https://cdn.ampproject.org/bar/foo');
  });

  it('should add path before query params', () => {
    expect(
      appendPathToUrl(
        urlService.parse('https://cdn.ampproject.org?a=b'),
        '/foo'
      )
    ).to.be.equal('https://cdn.ampproject.org/foo?a=b');
  });

  it('should add path before fragment', () => {
    expect(
      appendPathToUrl(
        urlService.parse('https://cdn.ampproject.org/#hello'),
        '/foo'
      )
    ).to.be.equal('https://cdn.ampproject.org/foo#hello');
  });

  it('should add path before query params and fragment', () => {
    expect(
      appendPathToUrl(
        urlService.parse('https://cdn.ampproject.org?a=b#hello'),
        'foo'
      )
    ).to.be.equal('https://cdn.ampproject.org/foo?a=b#hello');
  });
});