1 files changed, 26 insertions, 0 deletions
diff --git a/system/docshell/test/browser/browser_bug554155.js b/system/docshell/test/browser/browser_bug554155.js
new file mode 100644
index 000000000..efc74a1c1
--- /dev/null
+++ b/system/docshell/test/browser/browser_bug554155.js
@@ -0,0 +1,26 @@
+add_task(function* test() {
+  yield BrowserTestUtils.withNewTab({ gBrowser, url: "http://example.com" }, function* (browser) {
+    let numLocationChanges = 0;
+
+    let listener = {
+      onLocationChange: function(browser, webProgress, request, uri, flags) {
+        info("location change: " + (uri && uri.spec));
+        numLocationChanges++;
+      }
+    };
+
+    gBrowser.addTabsProgressListener(listener);
+
+    yield ContentTask.spawn(browser, null, function() {
+      // pushState to a new URL (http://example.com/foo").  This should trigger
+      // exactly one LocationChange event.
+      content.history.pushState(null, null, "foo");
+    });
+
+    yield Promise.resolve();
+
+    gBrowser.removeTabsProgressListener(listener);
+    is(numLocationChanges, 1,
+       "pushState should cause exactly one LocationChange event.");
+  });
+});