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fix issue where if codecept is run outside the test root, relative paths for baseScreenshots would not be found
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‎index.js‎

Lines changed: 117 additions & 111 deletions
Original file line numberDiff line numberDiff line change
@@ -14,17 +14,31 @@ const sizeOf = require('image-size');
1414

1515
class ResembleHelper extends Helper {
1616

17+
constructor(config) {
18+
super(config);
19+
this.baseFolder = this.resolvePath(config.baseFolder);
20+
this.diffFolder = this.resolvePath(config.diffFolder);
21+
this.screenshotFolder = global.output_dir + "/";
22+
}
23+
24+
resolvePath(folderPath) {
25+
if (!path.isAbsolute(folderPath)) {
26+
return path.resolve(global.codecept_dir, folderPath) + "/"; // custom helper
27+
}
28+
return folderPath;
29+
}
30+
1731
/**
1832
* Compare Images
19-
*
33+
*
2034
* @param image
2135
* @param diffImage
2236
* @param options
2337
* @returns {Promise<any | never>}
2438
*/
2539
async _compareImages(image, diffImage, options) {
26-
const image1 = this.config.baseFolder + image;
27-
const image2 = this.config.screenshotFolder + image;
40+
const image1 = this.baseFolder + image;
41+
const image2 = this.screenshotFolder + image;
2842

2943
// check whether the base and the screenshot images are present.
3044
fs.access(image1, fs.constants.F_OK | fs.constants.W_OK, (err) => {
@@ -42,7 +56,7 @@ class ResembleHelper extends Helper {
4256
});
4357

4458
return new Promise((resolve, reject) => {
45-
59+
4660
resemble.outputSettings({
4761
boundingBox: options.boundingBox,
4862
ignoredBox: options.ignoredBox
@@ -55,23 +69,22 @@ class ResembleHelper extends Helper {
5569
if (err) {
5670
reject(err);
5771
} else {
58-
if(!data.isSameDimensions) {
72+
if (!data.isSameDimensions) {
5973
let dimensions1 = sizeOf(image1);
6074
let dimensions2 = sizeOf(image2);
61-
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."));
75+
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."));
6276
}
6377
resolve(data);
6478
if (data.misMatchPercentage >= tolerance) {
65-
mkdirp(getDirName(this.config.diffFolder + diffImage), function (err) {
79+
mkdirp(getDirName(this.diffFolder + diffImage), function (err) {
6680
if (err) return cb(err);
6781
});
68-
fs.writeFile(this.config.diffFolder + diffImage + '.png', data.getBuffer(), (err, data) => {
82+
fs.writeFile(this.diffFolder + diffImage + '.png', data.getBuffer(), (err, data) => {
6983
if (err) {
7084
throw new Error(this.err);
71-
}
72-
else {
73-
const diffImagePath = path.join(process.cwd(), this.config.diffFolder + diffImage + '.png');
74-
this.debug("Diff Image File Saved to: " + diffImagePath);
85+
} else {
86+
const diffImagePath = path.join(process.cwd(), this.diffFolder + diffImage + '.png');
87+
this.debug("Diff Image File Saved to: " + diffImagePath);
7588
}
7689
});
7790
}
@@ -95,13 +108,13 @@ class ResembleHelper extends Helper {
95108

96109
/**
97110
* Take screenshot of individual element.
98-
* @param selector selector of the element to be screenshotted
111+
* @param selector selector of the element to be screenshotted
99112
* @param name name of the image
100-
* @returns {Promise<void>}
113+
* @returns {Promise<void>}
101114
*/
102115
async screenshotElement(selector, name) {
103116
const helper = this._getHelper();
104-
if(this.helpers['Puppeteer']){
117+
if (this.helpers['Puppeteer']) {
105118
await helper.waitForVisible(selector);
106119
const els = await helper._locate(selector);
107120
if (!els.length) throw new Error(`Element ${selector} couldn't be located`);
@@ -111,16 +124,13 @@ class ResembleHelper extends Helper {
111124
path: global.output_dir + "/" + name + '.png'
112125
});
113126
} else if (this.helpers['WebDriver']) {
114-
const configuration = this.config;
115-
116127
await helper.waitForVisible(selector);
117128
const els = await helper._locate(selector);
118129
if (!els.length) throw new Error(`Element ${selector} couldn't be located`);
119130
const el = els[0];
120131

121-
await el.saveScreenshot(configuration.screenshotFolder + name + '.png');
122-
}
123-
else throw new Error("Method only works with Puppeteer and WebDriver helpers.");
132+
await el.saveScreenshot(this.screenshotFolder + name + '.png');
133+
} else throw new Error("Method only works with Puppeteer and WebDriver helpers.");
124134
}
125135

126136
/**
@@ -135,12 +145,12 @@ class ResembleHelper extends Helper {
135145
const allure = codeceptjs.container.plugins('allure');
136146
const diffImage = "Diff_" + baseImage.split(".")[0] + ".png";
137147

138-
if(allure !== undefined && misMatch >= tolerance) {
139-
allure.addAttachment('Base Image', fs.readFileSync(this.config.baseFolder + baseImage), 'image/png');
140-
allure.addAttachment('Screenshot Image', fs.readFileSync(this.config.screenshotFolder + baseImage), 'image/png');
141-
allure.addAttachment('Diff Image', fs.readFileSync(this.config.diffFolder + diffImage), 'image/png');
148+
if (allure !== undefined && misMatch >= tolerance) {
149+
allure.addAttachment('Base Image', fs.readFileSync(this.baseFolder + baseImage), 'image/png');
150+
allure.addAttachment('Screenshot Image', fs.readFileSync(this.screenshotFolder + baseImage), 'image/png');
151+
allure.addAttachment('Diff Image', fs.readFileSync(this.diffFolder + diffImage), 'image/png');
142152
}
143-
}
153+
}
144154

145155
/**
146156
* This method uploads the diff and screenshot images into the bucket with diff image under bucketName/diff/diffImage and the screenshot image as
@@ -155,60 +165,59 @@ class ResembleHelper extends Helper {
155165
*/
156166

157167
async _upload(accessKeyId, secretAccessKey, region, bucketName, baseImage, ifBaseImage) {
158-
console.log("Starting Upload... ");
159-
const s3 = new AWS.S3({
160-
accessKeyId: accessKeyId,
161-
secretAccessKey: secretAccessKey,
162-
region: region
168+
console.log("Starting Upload... ");
169+
const s3 = new AWS.S3({
170+
accessKeyId: accessKeyId,
171+
secretAccessKey: secretAccessKey,
172+
region: region
173+
});
174+
fs.readFile(this.screenshotFolder + baseImage, (err, data) => {
175+
if (err) throw err;
176+
let base64data = new Buffer(data, 'binary');
177+
const params = {
178+
Bucket: bucketName,
179+
Key: `output/${baseImage}`,
180+
Body: base64data
181+
};
182+
s3.upload(params, (uerr, data) => {
183+
if (uerr) throw uerr;
184+
console.log(`Screenshot Image uploaded successfully at ${data.Location}`);
163185
});
164-
fs.readFile(this.config.screenshotFolder + baseImage, (err, data) => {
165-
if(err) throw err;
186+
});
187+
fs.readFile(this.diffFolder + "Diff_" + baseImage, (err, data) => {
188+
if (err) console.log("Diff image not generated");
189+
else {
190+
let base64data = new Buffer(data, 'binary');
191+
const params = {
192+
Bucket: bucketName,
193+
Key: `diff/Diff_${baseImage}`,
194+
Body: base64data
195+
};
196+
s3.upload(params, (uerr, data) => {
197+
if (uerr) throw uerr;
198+
console.log(`Diff Image uploaded successfully at ${data.Location}`)
199+
});
200+
}
201+
});
202+
if (ifBaseImage) {
203+
fs.readFile(this.baseFolder + baseImage, (err, data) => {
204+
if (err) throw err;
205+
else {
166206
let base64data = new Buffer(data, 'binary');
167207
const params = {
168-
Bucket: bucketName,
169-
Key: `output/${baseImage}`,
170-
Body: base64data
208+
Bucket: bucketName,
209+
Key: `base/${baseImage}`,
210+
Body: base64data
171211
};
172212
s3.upload(params, (uerr, data) => {
173-
if(uerr) throw uerr;
174-
console.log(`Screenshot Image uploaded successfully at ${data.Location}`);
213+
if (uerr) throw uerr;
214+
console.log(`Base Image uploaded at ${data.Location}`)
175215
});
216+
}
176217
});
177-
fs.readFile(this.config.diffFolder + "Diff_" + baseImage, (err, data) => {
178-
if(err) console.log("Diff image not generated");
179-
else {
180-
let base64data = new Buffer(data, 'binary');
181-
const params = {
182-
Bucket: bucketName,
183-
Key: `diff/Diff_${baseImage}`,
184-
Body: base64data
185-
};
186-
s3.upload(params, (uerr, data) => {
187-
if(uerr) throw uerr;
188-
console.log(`Diff Image uploaded successfully at ${data.Location}`)
189-
});
190-
}
191-
});
192-
if(ifBaseImage) {
193-
fs.readFile(this.config.baseFolder + baseImage, (err, data) => {
194-
if(err) throw err;
195-
else {
196-
let base64data = new Buffer(data, 'binary');
197-
const params = {
198-
Bucket: bucketName,
199-
Key: `base/${baseImage}`,
200-
Body: base64data
201-
};
202-
s3.upload(params, (uerr, data) => {
203-
if(uerr) throw uerr;
204-
console.log(`Base Image uploaded at ${data.Location}`)
205-
});
206-
}
207-
});
208-
}
209-
else {
210-
console.log("Not Uploading base Image");
211-
}
218+
} else {
219+
console.log("Not Uploading base Image");
220+
}
212221
}
213222

214223
/**
@@ -222,24 +231,24 @@ class ResembleHelper extends Helper {
222231
*/
223232

224233
_download(accessKeyId, secretAccessKey, region, bucketName, baseImage) {
225-
console.log("Starting Download...");
226-
const s3 = new AWS.S3({
227-
accessKeyId: accessKeyId,
228-
secretAccessKey: secretAccessKey,
229-
region: region
230-
});
231-
const params = {
232-
Bucket: bucketName,
233-
Key: `base/${baseImage}`
234-
};
235-
return new Promise((resolve, reject) => {
236-
s3.getObject(params, (err, data) => {
237-
if(err) console.error(err);
238-
console.log(this.config.baseFolder + baseImage);
239-
fs.writeFileSync(this.config.baseFolder + baseImage, data.Body);
240-
resolve("File Downloaded Successfully");
241-
});
234+
console.log("Starting Download...");
235+
const s3 = new AWS.S3({
236+
accessKeyId: accessKeyId,
237+
secretAccessKey: secretAccessKey,
238+
region: region
239+
});
240+
const params = {
241+
Bucket: bucketName,
242+
Key: `base/${baseImage}`
243+
};
244+
return new Promise((resolve, reject) => {
245+
s3.getObject(params, (err, data) => {
246+
if (err) console.error(err);
247+
console.log(this.baseFolder + baseImage);
248+
fs.writeFileSync(this.baseFolder + baseImage, data.Body);
249+
resolve("File Downloaded Successfully");
242250
});
251+
});
243252
}
244253

245254
/**
@@ -255,10 +264,9 @@ class ResembleHelper extends Helper {
255264
}
256265

257266
const awsC = this.config.aws;
258-
this.config.screenshotFolder = global.output_dir + "/";
259267

260268
if (awsC !== undefined && options.prepareBaseImage === false) {
261-
await this._download(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage);
269+
await this._download(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage);
262270
}
263271

264272
if (options.prepareBaseImage !== undefined && options.prepareBaseImage) {
@@ -269,9 +277,9 @@ class ResembleHelper extends Helper {
269277

270278
this._addAttachment(baseImage, misMatch, options.tolerance);
271279

272-
if(awsC !== undefined) {
273-
let ifUpload = options.prepareBaseImage === false ? false : true;
274-
await this._upload(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage, ifUpload)
280+
if (awsC !== undefined) {
281+
let ifUpload = options.prepareBaseImage === false ? false : true;
282+
await this._upload(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage, ifUpload)
275283
}
276284

277285
this.debug("MisMatch Percentage Calculated is " + misMatch);
@@ -294,10 +302,9 @@ class ResembleHelper extends Helper {
294302
}
295303

296304
const awsC = this.config.aws;
297-
this.config.screenshotFolder = global.output_dir + "/";
298305

299306
if (awsC !== undefined && options.prepareBaseImage === false) {
300-
await this._download(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage);
307+
await this._download(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage);
301308
}
302309

303310
if (options.prepareBaseImage !== undefined && options.prepareBaseImage) {
@@ -308,10 +315,10 @@ class ResembleHelper extends Helper {
308315
const misMatch = await this._fetchMisMatchPercentage(baseImage, options);
309316

310317
this._addAttachment(baseImage, misMatch, options.tolerance);
311-
312-
if(awsC !== undefined) {
313-
let ifUpload = options.prepareBaseImage === false ? false : true;
314-
await this._upload(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage, ifUpload)
318+
319+
if (awsC !== undefined) {
320+
let ifUpload = options.prepareBaseImage === false ? false : true;
321+
await this._upload(awsC.accessKeyId, awsC.secretAccessKey, awsC.region, awsC.bucketName, baseImage, ifUpload)
315322
}
316323

317324
this.debug("MisMatch Percentage Calculated is " + misMatch);
@@ -324,25 +331,23 @@ class ResembleHelper extends Helper {
324331
* @param screenShotImage Name of the screenshot Image (Screenshot Image Path is taken from Configuration)
325332
*/
326333
async _prepareBaseImage(screenShotImage) {
327-
const configuration = this.config;
328-
329-
await this._createDir(configuration.baseFolder + screenShotImage);
334+
await this._createDir(this.baseFolder + screenShotImage);
330335

331-
fs.access(configuration.screenshotFolder + screenShotImage, fs.constants.F_OK | fs.constants.W_OK, (err) => {
336+
fs.access(this.screenshotFolder + screenShotImage, fs.constants.F_OK | fs.constants.W_OK, (err) => {
332337
if (err) {
333338
throw new Error(
334-
`${configuration.screenshotFolder + screenShotImage} ${err.code === 'ENOENT' ? 'does not exist' : 'is read-only'}`);
339+
`${this.screenshotFolder + screenShotImage} ${err.code === 'ENOENT' ? 'does not exist' : 'is read-only'}`);
335340
}
336341
});
337342

338-
fs.access(configuration.baseFolder, fs.constants.F_OK | fs.constants.W_OK, (err) => {
343+
fs.access(this.baseFolder, fs.constants.F_OK | fs.constants.W_OK, (err) => {
339344
if (err) {
340345
throw new Error(
341-
`${configuration.baseFolder} ${err.code === 'ENOENT' ? 'does not exist' : 'is read-only'}`);
346+
`${this.baseFolder} ${err.code === 'ENOENT' ? 'does not exist' : 'is read-only'}`);
342347
}
343348
});
344349

345-
fs.copyFileSync(configuration.screenshotFolder + screenShotImage, configuration.baseFolder + screenShotImage);
350+
fs.copyFileSync(this.screenshotFolder + screenShotImage, this.baseFolder + screenShotImage);
346351
}
347352

348353
/**
@@ -371,15 +376,15 @@ class ResembleHelper extends Helper {
371376
let location, size;
372377

373378
if (this.helpers['Puppeteer']) {
374-
const box = await el.boundingBox();
379+
const box = await el.boundingBox();
375380
size = location = box;
376381
}
377382

378383
if (this.helpers['WebDriver'] || this.helpers['Appium']) {
379384
location = await el.getLocation();
380385
size = await el.getSize();
381-
}
382-
386+
}
387+
383388
if (this.helpers['WebDriverIO']) {
384389
location = await helper.browser.getLocation(selector);
385390
size = await helper.browser.getElementSize(selector);
@@ -417,4 +422,5 @@ class ResembleHelper extends Helper {
417422
throw new Error('No matching helper found. Supported helpers: WebDriver/Appium/Puppeteer');
418423
}
419424
}
425+
420426
module.exports = ResembleHelper;

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