[taler-merchant-backoffice] 03/03: mocking local storage in tests

[gnunet]

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ms pushed a commit to branch master
in repository merchant-backoffice.

commit 5de299e258fecb2893b44bca28ab0f1052e23c90
Author: ms <ms@taler.net>
AuthorDate: Sat Jan 8 11:03:56 2022 +0100

    mocking local storage in tests
---
 packages/bank/build-bank-translations.sh  |  3 +++
 packages/bank/tests/__tests__/homepage.js | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/packages/bank/build-bank-translations.sh 
b/packages/bank/build-bank-translations.sh
index 8258efe..85c8ad0 100755
--- a/packages/bank/build-bank-translations.sh
+++ b/packages/bank/build-bank-translations.sh
@@ -2,6 +2,9 @@
 
 set -eu
 
+# NOTE: the <Translate> node somehow didn't get
+# the strings extracted.  Only i18n`` did
+
 function build {
   POTGEN=node_modules/@gnu-taler/pogen/bin/pogen
   PACKAGE_NAME=$1
diff --git a/packages/bank/tests/__tests__/homepage.js 
b/packages/bank/tests/__tests__/homepage.js
index 458bc2a..0145522 100644
--- a/packages/bank/tests/__tests__/homepage.js
+++ b/packages/bank/tests/__tests__/homepage.js
@@ -7,6 +7,14 @@ import { waitFor, cleanup, render, fireEvent, screen } from 
'@testing-library/pr
 import expect from 'expect';
 import fetchMock from "jest-fetch-mock";
 
+/**
+ * This mock makes the translator always return the
+ * english string.  It didn't work within the 'beforeAll'
+ * function...
+ */
+jest.mock("../../src/i18n")
+const i18n = require("../../src/i18n")
+i18n.useTranslator.mockImplementation(() => function(arg) {return arg})
 
 beforeAll(() => {
   Object.defineProperty(window, 'location', {
@@ -15,6 +23,10 @@ beforeAll(() => {
       pathname: "/demobanks/default"
     }
   })
+  // Invalidating local storage: makes it more difficult
+  // to isolate the individual tests, and it doesn't really
+  // participate in the SPA logic.
+  global.Storage.prototype.setItem = jest.fn((key, value) => {})
 })
 
 /**

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