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comprehensiveSequenceTest('reverse', {
  cases: [
    {
      input: [1, 2, 3],
      result: [3, 2, 1]
    }
  ],

  supportsAsync: true
});

describe("reverse", function() {
  ensureLaziness(function() { Lazy(people).reverse(); });

  it("iterates the collection backwards", function() {
    var reversed = Lazy(people).reverse().toArray();

    expect(reversed).toEqual([
      happy,
      daniel,
      adam,
      lauren,
      mary,
      david
    ]);
  });

  it("provides indexed access into the collection", function() {
    var lastPerson = Lazy(people).reverse().get(0);
    expect(lastPerson).toEqual(happy);
  });

  it("does not create an array to index into the collection", function() {
    var reversed = Lazy(people).reverse();
    var lastPerson = reversed.get(0);
    expect(arraysCreated).toBe(0);
  });

  it("passes an index along with each element", function() {
    expect(Lazy(people).reverse()).toPassToEach(1, [0, 1, 2, 3, 4, 5]);
  });

  it("does not wrongly cache the source array", function() {
    var array = [1, 2, 3];
    var sequence = Lazy(array)
      .map(increment)
      .filter(alwaysTrue)
      .map(increment)
      .reverse();

    expect(sequence).toComprise([5, 4, 3]);
    array.push(4);
    expect(sequence).toComprise([6, 5, 4, 3]);
  });
});

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