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node_modules/object-hash/test/replacer.js 974 Bytes
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  'use strict';
  
  var assert = require('assert');
  var stream = require('stream');
  var hash = require('../index');
  
  describe('replacer option', function() {
    it('should emit information about an object to a stream', function() {
      var strm = new stream.PassThrough();
      
      var replacer = function(value) {
        try {
          return JSON.stringify(value);
        } catch (e) {
          return value;
        }
      };
      
      var obj = {foo: 'bar'};
      hash.writeToStream(obj, {replacer: replacer}, strm);
      var result = strm.read().toString();
      assert.strictEqual(typeof result, 'string');
      assert.notStrictEqual(result.indexOf(JSON.stringify(obj)), -1);
    });
  
    it('should not reach property values when excludeValues = true', function() {
      var strm = new stream.PassThrough();
      
      var replacer = function(k) {
        assert.notStrictEqual(k, 'bar');
        return k;
      };
      
      hash.writeToStream({foo: 'bar'}, {excludeValues: true}, strm);
    });
  });