# all files / test/unit/base/core/ func.spec.js

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     /**
     * func.spec.js
     * (c) 2013~ Alan Hong
     * summernote may be freely distributed under the MIT license./
     */
    import chai from 'chai';
    import func from '../../../../src/js/base/core/func';

    var expect = chai.expect;

    describe('base:core.func', () => {
      describe('eq', () => {
        it('should return true if two values are same', () => {
          expect(func.eq(1)(1)).to.be.ok;
        });
      });

      describe('eq2', () => {
        it('should return true if two values are same', () => {
          expect(func.eq2(1, 1)).to.be.ok;
        });

        it('should return false if two values are not same', () => {
          expect(func.eq2(1, '1')).to.be.not.ok;
        });
      });

      describe('peq2', () => {
        it('should return true when two properties are same', () => {
          expect(func.peq2('prop')({ prop: 'hello' }, { prop: 'hello' })).to.be.ok;
        });

        it('should return false when two properties are not same', () => {
          expect(func.peq2('prop')({ prop: 'hello' }, { prop: 'world' })).to.be.not.ok;
        });
      });

      describe('ok', () => {
        it('should return true', () => {
          expect(func.ok()).to.be.ok;
        });
      });

      describe('fail', () => {
        it('should return false', () => {
          expect(func.fail()).to.be.not.ok;
        });
      });

      describe('not', () => {
        it('should return opposite function', () => {
          expect(func.not(func.ok)()).to.be.not.ok;
          expect(func.not(func.fail)()).to.be.ok;
        });
      });

      describe('and', () => {
        it('should return composite function', () => {
          expect(func.and(func.ok, func.ok)()).to.be.ok;
          expect(func.and(func.fail, func.ok)()).to.be.not.ok;
          expect(func.and(func.fail, func.fail)()).to.be.not.ok;
        });
      });

      describe('invoke', () => {
        it('should return function which invoke the method', () => {
          expect(func.invoke(func, 'ok')()).to.be.ok;
          expect(func.invoke(func, 'fail')()).to.be.not.ok;
        });
      });

      describe('uniqueId', () => {
        it('should return uniqueId with the prefix as a parameter', () => {
          expect(func.uniqueId('note-')).to.be.equal('note-1');
          expect(func.uniqueId('note-')).to.be.equal('note-2');
          expect(func.uniqueId('note-')).to.be.equal('note-3');
        });
      });

      describe('invertObject', () => {
        it('should return inverted object between keys and values', () => {
          expect(func.invertObject({ keyA: 'valueA', keyB: 'valueB' }))
            .to.deep.equal({ valueA: 'keyA', valueB: 'keyB' });
        });
      });

      describe('namespaceToCamel', () => {
        it('should return camelcase text', () => {
          expect(func.namespaceToCamel('upload.image')).to.be.equal('UploadImage');
        });

        it('should return prefixed camelcase text', () => {
          expect(func.namespaceToCamel('upload.image', 'summernote')).to.be.equal('summernoteUploadImage');
        });
      });

      describe('debounce', () => {
        it('shouldnt execute immediately', () => {
          var hasHappened = false;
          var fn = func.debounce(() => {
            hasHappened = true;
          }, 100);

          expect(hasHappened).to.be.false;
          fn();
          expect(hasHappened).to.be.false;
        });

        it('should execute after delay', (done) => {
          var hasHappened = false;
          var fn = func.debounce(() => {
            hasHappened = true;
          }, 100);

          fn();

          setTimeout(() => {
            expect(hasHappened).to.be.true;
            done();
          }, 101);
        });

        it('should only happen once', (done) => {
          var count = 0;
          var fn = func.debounce(() => {
            count += 1;
          }, 100);

          fn();
          fn();
          fn();

          setTimeout(() => {
            expect(count).to.be.equal(1);
            done();
          }, 101);
        });
      });
    });