1 files changed, 32 insertions, 0 deletions
diff --git a/devtools/client/shared/source-map-loader/test/browser/browser_getContentType.js b/devtools/client/shared/source-map-loader/test/browser/browser_getContentType.js
new file mode 100644
index 0000000000..5ac402951c
--- /dev/null
+++ b/devtools/client/shared/source-map-loader/test/browser/browser_getContentType.js
@@ -0,0 +1,32 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Cover the automatic mapping of content type based on file extension
+
+const {
+  getContentType,
+  contentMapForTesting,
+} = require("resource://devtools/client/shared/source-map-loader/utils/index.js");
+
+add_task(async () => {
+  for (const ext in contentMapForTesting) {
+    is(
+      getContentType(`whatever.${ext}`),
+      contentMapForTesting[ext],
+      `${ext} file extension is correctly mapping the expected content type`
+    );
+  }
+  is(
+    getContentType(`whateverjs`),
+    "text/plain",
+    `A valid extension in file name doesn't cause a special content type mapping`
+  );
+
+  is(
+    getContentType("whatever.platypus"),
+    "text/plain",
+    "Test unknown extension defaults to text plain"
+  );
+});