test cases updated and some fixes

Author: eco-line

.babelrc

@@ -0,0 +1,6 @@
+{
+	"presets": [
+		"@babel/preset-env",
+		"@babel/preset-typescript"
+	]
+}

.gitignore

@@ -4,4 +4,4 @@ node_modules/*
 coverage.lcov
 coverage
 .DS_Store 
-dist/*
+dist

.mocharc.json

@@ -0,0 +1,5 @@
+{
+	"extension": ["ts"],
+	"spec": "tests/*.js",
+	"require": "babel-register.js"
+}

babel-register.js

@@ -0,0 +1,3 @@
+const register = require('@babel/register').default;
+
+register({ extensions: ['.ts', '.tsx', '.js', '.jsx'] });

index.ts

@@ -14,9 +14,9 @@ import signature from "./libs/signature";
 /*
     Utils
 */
-var pHashUtils = require('./utils/phash');
-var transformationUtils = require('./utils/transformation');
-var errorMessages = require("./constants/errorMessages");
+import pHashUtils from "./utils/phash";
+import transformationUtils from "./utils/transformation";
+import errorMessages from "./libs/constants/errorMessages";
 
 import { IKCallback } from "./libs/interfaces/IKCallback";
 import { 
@@ -276,9 +276,9 @@ var ImageKit = function(
 		this: IImageKit,
 		firstPHash: string,
 		secondPHash: string
-	) : number {
+	) : number | Error {
         return pHashUtils.pHashDistance(firstPHash, secondPHash);
     }
 };
 
-module.exports = ImageKit;
+export default ImageKit;

libs/constants/supportedTransforms.ts

@@ -121,7 +121,10 @@
 	 * @see {@link https://docs.imagekit.io/features/image-transformations/overlay#overlay-image-cropping}
 	 */
 	overlayImageCropping: "oic",
-  
+ 	/**
+	 * @see {@link https://docs.imagekit.io/features/image-transformations/overlay#oifo}
+	*/
+	overlayImageFocus : "oifo",
 	/**
 	 * @see {@link https://docs.imagekit.io/features/image-transformations/overlay#trimming-of-the-overlay-image}
 	 */

libs/interfaces/index.ts

@@ -219,7 +219,7 @@ export interface IImageKit {
 	 * @param firstPHash
 	 * @param secondPHash
 	*/
-	pHashDistance: (firstPHash: string, secondPHash: string) => number;
+	pHashDistance: (firstPHash: string, secondPHash: string) => number | Error;
 }
 
 type FinalUrlOptions = ImageKitOptions & UrlOptions; //actual options used to construct url

libs/url/builder.ts

@@ -131,7 +131,7 @@ function constructTransformationString(transformation : Array<Transformation> |
             if(transformation[i][key] === "-") {
                 parsedTransformStep.push(transformKey);
             } else {
-                var value = transformation[i][key] || null;
+                var value = String(transformation[i][key]);
                 if(transformKey === "oi" || transformKey === "di") {
                     value = urlFormatter.removeTrailingSlash(urlFormatter.removeLeadingSlash(value));
 					if(value) value = value.replace(/\//g,"@@");

package.json

@@ -3,10 +3,12 @@
   "version": "3.1.2",
   "description": "Offical NodeJS SDK for ImageKit.io integration",
   "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "lint": "./node_modules/eslint/bin/eslint.js tests/ utils/phash.js",
     "lint:fix": "./node_modules/eslint/bin/eslint.js --fix tests/ utils/phash.js",
-    "test": "export NODE_ENV=test; tsc; nyc ./node_modules/mocha/bin/mocha --exit -t 40000 tests/*.js;ex=$?;unset NODE_ENV; exit $ex;",
+    "check-types": "tsc",
+    "test": "export NODE_ENV=test; nyc ./node_modules/mocha/bin/mocha --exit -t 40000 tests/*.js;ex=$?;unset NODE_ENV; exit $ex;",
     "report-coverage": "nyc report --reporter=text-lcov > coverage.lcov && codecov"
   },
   "author": "ImageKit Developer <[email protected]>",
@@ -22,6 +24,12 @@
     "node": ">=10.0.0"
   },
   "devDependencies": {
+    "@babel/cli": "^7.14.5",
+    "@babel/core": "^7.14.6",
+    "@babel/node": "^7.14.5",
+    "@babel/preset-env": "^7.14.5",
+    "@babel/preset-typescript": "^7.14.5",
+    "@babel/register": "^7.14.5",
     "@types/lodash": "^4.14.170",
     "@types/node": "^15.12.2",
     "@types/request": "^2.48.5",

tests/cache.js

@@ -1,9 +1,10 @@
-const chai = require("chai");
-const sinon = require("sinon");
+import chai from "chai";
+import sinon from "sinon";
 const expect = chai.expect;
 const initializationParams = require("./data").initializationParams
-const ImageKit = require("..");
-const nock = require("nock");
+
+import ImageKit from "../index";
+import nock from "nock";
 var imagekit = new ImageKit(initializationParams);
 
 const dummyAPISuccessResponse = {