import 'mocha';
import * as assert from 'assert';

import {tokenizeWithNewLines} from './../../src/helpers/string';

describe("String Extensions Module", function(){

    describe('String#_tokenizeWithNewLines()', function () {
        it("should split and return an array of strings ", () => {
            var act = "";
            assert.deepEqual(tokenizeWithNewLines(act), [""]);

            act = "\n";
            assert.deepEqual(tokenizeWithNewLines(act), ["\n"]);
        
            act = "abc";
            assert.deepEqual(tokenizeWithNewLines(act), ["abc"]);

            act = "abc\nd";
            assert.deepEqual(tokenizeWithNewLines(act), ["abc", "\n", "d"]);

            act = "\n\n";
            assert.deepEqual(tokenizeWithNewLines(act), ["\n", "\n"]);

            act = "\n \n";
            assert.deepEqual(tokenizeWithNewLines(act), ["\n", " ", "\n"]);
            
            act = " \nabc\n";
            assert.deepEqual(tokenizeWithNewLines(act), [" ", "\n", "abc", "\n"]);

            act = "\n\nabc\n\n6\n";
            assert.deepEqual(tokenizeWithNewLines(act), ["\n", "\n", "abc", "\n", "\n", "6", "\n"]);
        });
    });

    
});