AB#866 Fix attachment download test when running on BrowserStack

client/tests/webdriver/baseSpecs/showAttachment.spec.js

@@ -12,6 +12,35 @@ const ATTACHMENT_MIMETYPE = "image/png"
 const ATTACHMENT_USED_IN = "A test report from Arthur"
 const ATTACHMENT_SIZE = 12316
 
+async function checkDownloadedFile(attachmentName, attachmentSize) {
+  const testEnv =
+    (process.env.GIT_TAG_NAME && "remote") || process.env.TEST_ENV || "local"
+  if (testEnv === "local") {
+    // Local
+    const stats = fs.statSync(attachmentName)
+    // eslint-disable-next-line no-unused-expressions
+    expect(stats.isFile()).to.be.true
+    expect(stats.size).to.equal(attachmentSize)
+    // clean up
+    fs.rmSync(attachmentName)
+  } else {
+    // On BrowserStack
+    // Don't specify the name, just assume it was the last downloaded file (actual filename may be different!)
+    const fileExists = await browser.executeScript(
+      'browserstack_executor: {"action": "fileExists"}',
+      []
+    )
+    // eslint-disable-next-line no-unused-expressions
+    expect(fileExists).to.be.true
+    const fileProperties = await browser.executeScript(
+      'browserstack_executor: {"action": "getFileProperties"}',
+      []
+    )
+    expect(fileProperties.size).to.equal(attachmentSize)
+    // Can't delete the file here
+  }
+}
+
 describe("Show attachment page", () => {
   beforeEach("Open the show attachment page", async() => {
     await ShowAttachment.open(ATTACHMENT_UUID)
@@ -28,12 +57,7 @@ describe("Show attachment page", () => {
       await downloadButton.click()
       await browser.pause(1000)
       // file should be downloaded by now
-      const stats = fs.statSync(ATTACHMENT_NAME)
-      // eslint-disable-next-line no-unused-expressions
-      expect(stats.isFile()).to.be.true
-      expect(stats.size).to.equal(ATTACHMENT_SIZE)
-      // clean up
-      fs.rmSync(ATTACHMENT_NAME)
+      await checkDownloadedFile(ATTACHMENT_NAME, ATTACHMENT_SIZE)
     })
     it("We should see image of attachment", async() => {
       await (await ShowAttachment.getImage()).waitForExist()