1 files changed, 19 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_ioservice.js b/netwerk/test/unit/test_ioservice.js
new file mode 100644
index 0000000000..d218d77a7a
--- /dev/null
+++ b/netwerk/test/unit/test_ioservice.js
@@ -0,0 +1,19 @@
+"use strict";
+
+add_task(function test_extractScheme() {
+  equal(Services.io.extractScheme("HtTp://example.com"), "http");
+  Assert.throws(
+    () => {
+      Services.io.extractScheme("://example.com");
+    },
+    /NS_ERROR_MALFORMED_URI/,
+    "missing scheme"
+  );
+  Assert.throws(
+    () => {
+      Services.io.extractScheme("ht%tp://example.com");
+    },
+    /NS_ERROR_MALFORMED_URI/,
+    "bad scheme"
+  );
+});