Function test

test/projections.js:8–11

(fields, snapshot, expected)

describe('projection utility methods', function() {
  describe('projectSnapshot', function() {
    function test(fields, snapshot, expected) {
      projections.projectSnapshot(fields, snapshot);
      expect(snapshot).eql(expected);
    }

    it('throws on snapshots with the wrong type', function() {
      expect(function() {