3 files changed, 42 insertions, 0 deletions
diff --git a/devtools/shared/qrcode/tests/xpcshell/.eslintrc.js b/devtools/shared/qrcode/tests/xpcshell/.eslintrc.js
new file mode 100644
index 0000000000..7f6b62a9e5
--- /dev/null
+++ b/devtools/shared/qrcode/tests/xpcshell/.eslintrc.js
@@ -0,0 +1,6 @@
+"use strict";
+
+module.exports = {
+  // Extend from the shared list of defined globals for mochitests.
+  extends: "../../../../.eslintrc.xpcshell.js",
+};
diff --git a/devtools/shared/qrcode/tests/xpcshell/test_encode.js b/devtools/shared/qrcode/tests/xpcshell/test_encode.js
new file mode 100644
index 0000000000..7c82cf50c0
--- /dev/null
+++ b/devtools/shared/qrcode/tests/xpcshell/test_encode.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Test encoding a simple message.
+ */
+
+const { require } = ChromeUtils.importESModule(
+  "resource://devtools/shared/loader/Loader.sys.mjs"
+);
+
+const QR = require("resource://devtools/shared/qrcode/index.js");
+
+function run_test() {
+  const imgData = QR.encodeToDataURI("HELLO", "L");
+  Assert.equal(
+    imgData.src,
+    "data:image/gif;base64,R0lGODdhOgA6AIAAAAAAAP///ywAAAAAOgA6AAAC" +
+      "/4yPqcvtD6OctNqLs968+w+G4gKU5nkaKKquLuW+QVy2tAkDTj3rfQts8CRDko" +
+      "+HPPoYRUgy9YsyldDm44mLWhHYZM6W7WaDqyCRGkZDySxpRGw2sqvLt1q5w/fo" +
+      "XyE6vnUQOJUHBlinMGh046V1F5PDqNcoqcgBOWKBKbK2N+aY+Ih49VkmqMcl2l" +
+      "dkhZUK1umE6jZXJ2ZJaujZaRqH4bpb2uZrJxvIt4Ebe9qoYYrJOsw8apz2bCut" +
+      "m9kqDcw52uuImyr5Oh1KXH1jrn2anuunywtODU/o2c6teceW39ZcLFg/fNMo1b" +
+      "t3jVw2dwTPwJq1KYG3gAklCgu37yGxeScYKyiCc+7DR34hPVQiuQ7UhJMagyEb" +
+      "lymmzJk0a9q8iTOnzp0NCgAAOw=="
+  );
+  Assert.equal(imgData.width, 58);
+  Assert.equal(imgData.height, 58);
+}
diff --git a/devtools/shared/qrcode/tests/xpcshell/xpcshell.ini b/devtools/shared/qrcode/tests/xpcshell/xpcshell.ini
new file mode 100644
index 0000000000..68d274268d
--- /dev/null
+++ b/devtools/shared/qrcode/tests/xpcshell/xpcshell.ini
@@ -0,0 +1,6 @@
+[DEFAULT]
+tags = devtools
+head =
+firefox-appdir = browser
+
+[test_encode.js]