Merge pull request #47 from Kartikeya99/dimension

Error to show dimensions.

index.js

@@ -5,6 +5,7 @@ const mkdirp = require('mkdirp');
 const getDirName = require('path').dirname;
 const AWS = require('aws-sdk');
 const path = require('path');
+const sizeOf = require('image-size');
 
 /**
  * Resemble.js helper class for CodeceptJS, this allows screen comparison
@@ -54,7 +55,11 @@ class ResembleHelper extends Helper {
         if (err) {
           reject(err);
         } else {
-          if(!data.isSameDimensions) reject(new Error("The images are not of same dimensions. Please use images of same dimensions so as to avoid any unexpected results."));
+          if(!data.isSameDimensions) {
+            let dimensions1 = sizeOf(image1);
+            let dimensions2 = sizeOf(image2);
+            reject(new Error("The image1 is of " +dimensions1.height + " X " + dimensions1.width + " and image2 is of " + dimensions2.height + " X " + dimensions2.width + ". Please use images of same dimensions so as to avoid any unexpected results."));
+          }
           resolve(data);
           if (data.misMatchPercentage >= tolerance) {
             mkdirp(getDirName(this.config.diffFolder + diffImage), function (err) {

package.json

@@ -13,7 +13,8 @@
     "resemblejs": "^3.0.0",
     "mkdirp": "^0.5.1",
     "path": "^0.12.7",
-    "aws-sdk": "^2.476.0"
+    "aws-sdk": "^2.476.0",
+    "image-size": "^0.7.4"
   },
   "keywords": [
     "codeceptJS",