hunk.code_window:           <div className="cover">
               <div className="coverFixed">
                 <div className="filler">
                   <div className="miniHeaderContents">
                     <a href="docs/" target="_self">
                       Docs
                     </a>
                     <a href="https://stackoverflow.com/questions/tagged/immutable.js?sort=votes">
                       Questions
                     </a>
  
hunk.labels: keep keep keep keep keep replace keep keep keep keep
hunk.after_edit:                     Docs (v{packageJson.version})
  
hunk.file_path: pages/src/src/Header.js
hunk.type: replace
file: /**
   * Copyright (c) 2014-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  ///<reference path='../resources/jest.d.ts'/>
  
  import * as jasmineCheck from 'jasmine-check';
  import * as t from 'transducers-js';
  jasmineCheck.install();
  
  import { List, Map, Set, Stack } from '../';
  
  describe('Transformer Protocol', () => {
  
    it('transduces Stack without initial values', () => {
      let s = Stack.of(1, 2, 3, 4);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let s2 = t.transduce(xform, Stack(), s);
      expect(s.toArray()).toEqual([1, 2, 3, 4]);
      expect(s2.toArray()).toEqual([5, 3]);
    });
  
    it('transduces Stack with initial values', () => {
      let v1 = Stack.of(1, 2, 3);
      let v2 = Stack.of(4, 5, 6, 7);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let r = t.transduce(xform, Stack(), v1, v2);
      expect(v1.toArray()).toEqual([1, 2, 3]);
      expect(v2.toArray()).toEqual([4, 5, 6, 7]);
      expect(r.toArray()).toEqual([7, 5, 1, 2, 3]);
    });
  
    it('transduces List without initial values', () => {
      let v = List.of(1, 2, 3, 4);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let r = t.transduce(xform, List(), v);
      expect(v.toArray()).toEqual([1, 2, 3, 4]);
      expect(r.toArray()).toEqual([3, 5]);
    });
  
    it('transduces List with initial values', () => {
      let v1 = List.of(1, 2, 3);
      let v2 = List.of(4, 5, 6, 7);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let r = t.transduce(xform, List(), v1, v2);
      expect(v1.toArray()).toEqual([1, 2, 3]);
      expect(v2.toArray()).toEqual([4, 5, 6, 7]);
      expect(r.toArray()).toEqual([1, 2, 3, 5, 7]);
    });
  
    it('transduces Map without initial values', () => {
      let m1 = Map({a: 1, b: 2, c: 3, d: 4});
      let xform = t.comp(
        t.filter(([k, v]) => v % 2 === 0),
        t.map(([k, v]) => [k, v * 2]),
      );
      let m2 = t.transduce(xform, Map(), m1);
      expect(m1.toObject()).toEqual({a: 1, b: 2, c: 3, d: 4});
      expect(m2.toObject()).toEqual({b: 4, d: 8});
    });
  
    it('transduces Map with initial values', () => {
      let m1 = Map({a: 1, b: 2, c: 3});
      let m2 = Map({a: 4, b: 5});
      let xform = t.comp(
        t.filter(([k, v]) => v % 2 === 0),
        t.map(([k, v]) => [k, v * 2]),
      );
      let m3 = t.transduce(xform, Map(), m1, m2);
      expect(m1.toObject()).toEqual({a: 1, b: 2, c: 3});
      expect(m2.toObject()).toEqual({a: 4, b: 5});
      expect(m3.toObject()).toEqual({a: 8, b: 2, c: 3});
    });
  
    it('transduces Set without initial values', () => {
      let s1 = Set.of(1, 2, 3, 4);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let s2 = t.transduce(xform, Set(), s1);
      expect(s1.toArray()).toEqual([1, 2, 3, 4]);
      expect(s2.toArray()).toEqual([3, 5]);
    });
  
    it('transduces Set with initial values', () => {
      let s1 = Set.of(1, 2, 3, 4);
      let s2 = Set.of(2, 3, 4, 5, 6);
      let xform = t.comp(
        t.filter(x => x % 2 === 0),
        t.map(x => x + 1),
      );
      let s3 = t.transduce(xform, Set(), s1, s2);
      expect(s1.toArray()).toEqual([1, 2, 3, 4]);
      expect(s2.toArray()).toEqual([2, 3, 4, 5, 6]);
      expect(s3.toArray()).toEqual([1, 2, 3, 4, 5, 7]);
    });
  
  });
  