text: /* global source, describe, it, each, expect */
  
  const factory = source('main');
  const ISO15924 = source('ValueObject/ISO15924');
  
  describe('ISO 15924', () => {
  	describe('Hebr - Hebrew', () => {
  		const hebr = factory('Hebr');
  
  		it('instances are singletons', (next) => {
  			const singleton = factory('Hebr');
  			const upper = factory('HEBR');
  			const lower = factory('hebr');
  			const code = factory.code('Hebr');
  			const numeric = factory.numeric('125');
  			const number = factory.numeric(125);
  			const instance = new ISO15924('Hebr', '125');
  
  			expect(singleton).to.shallow.equal(hebr);
  			expect(upper).to.shallow.equal(hebr);
  			expect(lower).to.shallow.equal(hebr);
  			expect(code).to.shallow.equal(hebr);
  			expect(numeric).to.shallow.equal(hebr);
  			expect(number).to.shallow.equal(hebr);
  			expect(instance).not.to.shallow.equal(hebr);
  			expect(instance.code).to.equal(hebr.code);
  			expect(instance.numeric).to.equal(hebr.numeric);
  
  			next();
  		});
  
  		it('has code "Hebr"', (next) => {
  			expect(hebr.code).to.equal('Hebr');
  
  			next();
  		});
  
  		it('has numeric "125"', (next) => {
  			expect(hebr.numeric).to.equal('125');
  
  			next();
  		});
  
  		it('implements toString', (next) => {
  			expect(hebr.toString).to.be.function();
  			expect(hebr.toString()).to.equal('Hebr');
  			expect(String(hebr)).to.equal('Hebr');
  			expect(0 + hebr).to.equal('0Hebr');
  			expect('code:' + hebr).to.equal('code:Hebr');
  
  			next();
  		});
  
  		it('implements toJSON', (next) => {
  			expect(hebr.toJSON).to.be.function();
  			expect(hebr.toJSON()).to.equal('Hebr');
  			expect(JSON.stringify(hebr)).to.equal('"Hebr"');
  
  			next();
  		});
  
  		it('implements valueOf', (next) => {
  			expect(hebr.valueOf).to.be.function();
  			expect(hebr.valueOf()).to.equal(125);
  			expect(Number(hebr)).to.equal(125);
  			expect(+hebr).to.equal(125);
  
  			next();
  		});
  
  		it('implements Symbol.toPrimitive', (next) => {
  			expect(hebr.valueOf).to.be.function();
  			expect(hebr.valueOf()).to.equal(125);
  			expect(Number(hebr)).to.equal(125);
  			expect(+hebr).to.equal(125);
  
  			expect(0 + hebr).to.equal('0Hebr');
  			expect(String(hebr)).to.equal('Hebr');
  
  			next();
  		});
  	});
  });
  