1 files changed, 50 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_header_Accept-Language_case.js b/netwerk/test/unit/test_header_Accept-Language_case.js
new file mode 100644
index 0000000000..69d936d74a
--- /dev/null
+++ b/netwerk/test/unit/test_header_Accept-Language_case.js
@@ -0,0 +1,50 @@
+"use strict";
+
+var testpath = "/bug1054739";
+
+function run_test() {
+  let intlPrefs = Services.prefs.getBranch("intl.");
+
+  let oldAcceptLangPref = intlPrefs.getCharPref("accept_languages");
+
+  let testData = [
+    ["en", "en"],
+    ["ast", "ast"],
+    ["fr-ca", "fr-CA"],
+    ["zh-yue", "zh-yue"],
+    ["az-latn", "az-Latn"],
+    ["sl-nedis", "sl-nedis"],
+    ["zh-hant-hk", "zh-Hant-HK"],
+    ["ZH-HANT-HK", "zh-Hant-HK"],
+    ["en-us-x-priv", "en-US-x-priv"],
+    ["en-us-x-twain", "en-US-x-twain"],
+    ["de, en-US, en", "de,en-US;q=0.7,en;q=0.3"],
+    ["de,en-us,en", "de,en-US;q=0.7,en;q=0.3"],
+    ["en-US, en", "en-US,en;q=0.5"],
+    ["EN-US;q=0.2, EN", "en-US,en;q=0.5"],
+    ["en ;q=0.8, de  ", "en,de;q=0.5"],
+    [",en,", "en"],
+  ];
+
+  for (let i = 0; i < testData.length; i++) {
+    let acceptLangPref = testData[i][0];
+    let expectedHeader = testData[i][1];
+
+    intlPrefs.setCharPref("accept_languages", acceptLangPref);
+    let acceptLangHeader =
+      setupChannel(testpath).getRequestHeader("Accept-Language");
+    equal(acceptLangHeader, expectedHeader);
+  }
+
+  intlPrefs.setCharPref("accept_languages", oldAcceptLangPref);
+}
+
+function setupChannel(path) {
+  let uri = NetUtil.newURI("http://localhost:4444" + path);
+  let chan = NetUtil.newChannel({
+    uri,
+    loadUsingSystemPrincipal: true,
+  });
+  chan.QueryInterface(Ci.nsIHttpChannel);
+  return chan;
+}