(test) cypress: delete download folder/file after test

Signed-off-by: Raju Udava <sivadstala@gmail.com>

scripts/cypress/plugins/index.js

@@ -11,7 +11,7 @@
 
 // This function is called when a project is opened or re-opened (e.g. due to
 // the project's config changing)
-
+const { rmdir } = require('fs')
 /**
  * @type {Cypress.PluginConfig}
  */
@@ -19,5 +19,24 @@
 module.exports = (on, config) => {
   // `on` is used to hook into various events Cypress emits
   // `config` is the resolved Cypress config
+
+  // register utility tasks to read and parse Excel files
+  on('task', {
+    deleteFolder (folderName) {
+      console.log('deleting folder %s', folderName)
+
+      return new Promise((resolve, reject) => {
+        rmdir(folderName, { maxRetries: 10, recursive: true }, (err) => {
+          if (err) {
+            console.error(err)
+
+            return reject(err)
+          }
+
+          resolve(null)
+        })
+      })
+    },
+  })
 }
 

scripts/cypress/support/page_objects/mainPage.js

@@ -1,6 +1,16 @@
 
 const path = require("path");
 
+/**
+ * Delete the downloads folder to make sure the test has "clean"
+ * slate before starting.
+ */
+export const deleteDownloadsFolder = () => {
+  const downloadsFolder = Cypress.config('downloadsFolder')
+
+  cy.task('deleteFolder', downloadsFolder)
+}
+
 // main page
 export class _mainPage {
 
@@ -250,9 +260,10 @@ export class _mainPage {
 
                 // download folder path, read from config file
                 const downloadsFolder = Cypress.config("downloadsFolder")
+                let filePath = path.join(downloadsFolder, filename)
                 
                 // append download folder path with filename to generate full file path, retrieve file
-                cy.readFile(path.join(downloadsFolder, filename))
+                cy.readFile(filePath)
                     .then((fileData) => {
 
                         // from CSV, split into records (rows)
@@ -263,6 +274,8 @@ export class _mainPage {
                             expect(rows[i]).to.be.equal(expectedRecords[i])
                             //cy.log(rows[i])
                         }
+
+                        deleteDownloadsFolder()
                 })
             })        
     }