1 files changed, 47 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug1543077-4.js b/docshell/test/browser/browser_bug1543077-4.js
new file mode 100644
index 0000000000..ba20352b7f
--- /dev/null
+++ b/docshell/test/browser/browser_bug1543077-4.js
@@ -0,0 +1,47 @@
+function test() {
+  var rootDir = "http://mochi.test:8888/browser/docshell/test/browser/";
+  runCharsetTest(
+    rootDir + "file_bug1543077-4.html",
+    afterOpen,
+    "Japanese",
+    afterChangeCharset
+  );
+}
+
+function afterOpen() {
+  is(
+    content.document.documentElement.textContent.indexOf("\u0434"),
+    131,
+    "Parent doc should be IBM866 initially"
+  );
+
+  is(
+    content.frames[0].document.documentElement.textContent.indexOf("\u0412"),
+    90,
+    "Child doc should be IBM866 initially"
+  );
+}
+
+function afterChangeCharset() {
+  is(
+    content.document.documentElement.textContent.indexOf("\u3042"),
+    131,
+    "Parent doc should decode as EUC-JP subsequently"
+  );
+  is(
+    content.frames[0].document.documentElement.textContent.indexOf("\u3042"),
+    90,
+    "Child doc should decode as Shift_JIS subsequently"
+  );
+
+  is(
+    content.document.characterSet,
+    "EUC-JP",
+    "Parent doc should report EUC-JP subsequently"
+  );
+  is(
+    content.frames[0].document.characterSet,
+    "Shift_JIS",
+    "Child doc should report Shift_JIS subsequently"
+  );
+}