treebank-parser/test/lib-json-utils-test.js

A simple parser for treebanks stored in S-Expressions

var assert     = require('assert')
  , fs         = require('fs')
  , json_utils = require(__dirname+'/../lib/json-utils')
  ;

describe('lib/json-utils', function() {
  var test_tree = null;

  beforeEach(function() {
    test_tree = JSON.parse(fs.readFileSync(__dirname + '/test.json', 'utf8'));
  });

  describe('get_node', function() {
    it('should return the correct node from the inputted tree', function() {
      var test_properties = ['ROOT_0', 'S_0', 'VP_0', 'NP_0'], test_node = {'NNS_0': 'coins'};
      assert.deepEqual(json_utils.get_node(test_tree, test_properties), test_node);
    });
  });

  describe('set_tree_value', function() {
    it('should set the value of the specified node to the inputted value', function() {
      var test_properties = ['ROOT_0', 'S_0', 'VP_0', 'VB_0'], test_value = 'Drop';
      var test_compare_tree = JSON.parse(fs.readFileSync(__dirname + '/test.json', 'utf8'));
      test_compare_tree['ROOT_0']['S_0']['VP_0']['VB_0'] = test_value;
      json_utils.set_tree_value(test_tree, test_properties, test_value);
      assert.deepEqual(test_tree, test_compare_tree);
    });
  });

  describe('get_property_name_for_duplicate', function() {
    it('should retrieve an unused version of the property name', function() {
      var test_properties = ['ROOT_0', 'S_0', 'VP_0'];
      var test_node = json_utils.get_node(test_tree, test_properties);
      assert.strictEqual(json_utils.get_property_name_for_duplicate(test_node, 'VB'), 'VB_1');
    });
  });

  describe('strip_duplicate_indicator', function() {
    it('should strip the duplicate indicator from a property name', function() {
      assert.strictEqual(json_utils.strip_duplicate_indicator('VB_0'), 'VB');
    });
  });
});