conditional/lib/test/defined_test.js

A preconditions package based on Google's Preconditions library

(function() {
  var checkDefined;

  require('./helpers/test_helper');

  checkDefined = preconditions.checkDefined;

  describe('test defined precondition', function() {
    it('empty string is not undefined', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined('', 'expecting empty string');
      };
      return assert.doesNotThrow(wrapper);
    });
    it('0 is not undefined', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined(0, 'expecting zero');
      };
      return assert.doesNotThrow(wrapper);
    });
    it('empty array is not undefined', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined([], 'expecting empty array');
      };
      return assert.doesNotThrow(wrapper);
    });
    it('empty object is not undefined', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined({}, 'expecting empty object');
      };
      return assert.doesNotThrow(wrapper);
    });
    it('null is a defined value', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined(null, 'expecting null');
      };
      return assert.doesNotThrow(wrapper);
    });
    return it('test for undefined keyword', function() {
      var wrapper;
      wrapper = function() {
        return checkDefined(void 0, 'should fail');
      };
      return assert.throws(wrapper, 'should fail');
    });
  });

}).call(this);