/*
*
* NOTE:
*
* If "isConvertToConstPossible(line number)" or "isConvertToLetPossible(line number)" occurs in the test case step, it means that you need to click on the "var" * operator in the line with the number "line number" in the editor and press alt + enter.
*
* Example:
*
* <isConvertToConstPossible(1) is TRUE> Equals:
*
*	 1. Click on "var" at line 1
*		Expected result: the yellow lamp is near "var"
*	 2. Press alt + enter
*	 	Expected result: the "convert to const" suggest must be present
*
*/


1.
	[CASE] Convertaion from var to const (variables)

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var test1 = 1;

		 Expected result: isConvertToConstPossible(1) is TRUE
		1. Click on "Convert to const"
		 Expected result: code at line 1: const test = 1;


2.
	[CASE] Convertaion from var to let (variables)

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var test1 = 1;

		 Expected result: isConvertToLetPossible(1) is TRUE
		1. Click on "Convert to let"
		 Expected result: code at line 1: let test = 1;


3.
	[CASE] Check convertation possibility for another language versions; versions = [ ECMAScript 3, ECMAScript 5.1, JavaScript 1.8.5, React JSX]

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ${versions[..]}
		Opened empty project (Webstorm > File > New > Empty Project)
		Created file script.js with code: var test1 = 1;

	Steps:
		0. Create file script1.js with code:
			var test1 = 1;

		 Expected result: isConvertToConstPossible(1) is FALSE and isConvertToLetPossible(1) is FALSE


4.
	[CASE] Convertaion from var to const/let with commented code (variables)

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var test1 = 1;
			// test1 = 2;

		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE

		1. Uncomment line 2
		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is FALSE
		2. Comment line 2
		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE


5.
	[CASE] Convertaion from var to const/let with commented code (arrays, objects, functions, promises, libraries)

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var arr  = [];
			var obj = {};
			var func = () => { return 0; };
			var prs = new Promise((resolve, reject) => { setTimeout(function() { resolve("Success!"); }, 250); });
			var fs = require('fs');

			// arr.push(1);
			// obj.id = 1;
			// func = new Function('text', 'console.log(text); return;');
			//
			// console.log(arr);
			// console.log(obj);
			// func('text');
			// prs.then((successMessage) => { func(successMessage); });
			// fs.readdir('.', (err, files) => {  files.forEach(file => { console.log(file); }); });

		 Expected result:
			isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE
			isConvertToLetPossible(2) is TRUE and isConvertToConstPossible(2) is TRUE
			isConvertToLetPossible(3) is TRUE and isConvertToConstPossible(3) is TRUE
			isConvertToLetPossible(4) is TRUE and isConvertToConstPossible(4) is TRUE
			isConvertToLetPossible(5) is TRUE and isConvertToConstPossible(5) is TRUE

		1. Uncomment lines from 7 to 16
		 Expected result:
			isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE
			isConvertToLetPossible(2) is TRUE and isConvertToConstPossible(2) is TRUE
			isConvertToLetPossible(3) is TRUE and isConvertToConstPossible(3) is FALSE
			isConvertToLetPossible(4) is TRUE and isConvertToConstPossible(4) is TRUE
			isConvertToLetPossible(5) is TRUE and isConvertToConstPossible(5) is TRUE


6.
	[CASE] Convertaion from var to let in cycles

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			for(var i = 0; i < 10; i++ );
			// console.log(i);

		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is FALSE

		1. Uncomment line 2
		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is FALSE
		2. Convert 'var i' to let
		 Expected result:
			Source code is:
			let i;
			for(i = 0; i < 10; i++ );
			console.log(i);


7.
	[CASE] Convertaion from var/let when using functions

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var test = 1;
			const func = (arg) => {
				 // test = 2;
				 arg = 2;
			};
			// func(test);
			console.log(test);

		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE

		1. Uncomment line 3
		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is FALSE
		2. Uncomment line 6 and comment line 3
		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE


8.
	[CASE] Convertaion from var/let when variable exported as module

	Preconditions:
		Installed Webstorm, version: ${build}
		Language version (File > Sittings > Languages & Frameworks > JavaScript): ECMAScript 6
		Opened empty project (Webstorm > File > New > Empty Project)

	Steps:
		0. Create file script1.js with code:
			var test = 1;

			module.exports = test;

		 Expected result: isConvertToLetPossible(1) is TRUE and isConvertToConstPossible(1) is TRUE