1 files changed, 34 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/browser_sessionStorage_size.js b/browser/components/sessionstore/test/browser_sessionStorage_size.js
new file mode 100644
index 0000000000..1045482817
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_sessionStorage_size.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const RAND = Math.random();
+const URL =
+  "http://mochi.test:8888/browser/" +
+  "browser/components/sessionstore/test/browser_sessionStorage.html" +
+  "?" +
+  RAND;
+
+const OUTER_VALUE = "outer-value-" + RAND;
+
+// Lower the size limit for DOM Storage content. Check that DOM Storage
+// is not updated, but that other things remain updated.
+add_task(async function test_large_content() {
+  Services.prefs.setIntPref("browser.sessionstore.dom_storage_limit", 5);
+
+  let tab = BrowserTestUtils.addTab(gBrowser, URL);
+  let browser = tab.linkedBrowser;
+  await promiseBrowserLoaded(browser);
+
+  // Flush to make sure chrome received all data.
+  await TabStateFlusher.flush(browser);
+
+  let state = JSON.parse(ss.getTabState(tab));
+  info(JSON.stringify(state, null, "\t"));
+  Assert.equal(state.storage, null, "We have no storage for the tab");
+  Assert.equal(state.entries[0].title, OUTER_VALUE);
+  BrowserTestUtils.removeTab(tab);
+
+  Services.prefs.clearUserPref("browser.sessionstore.dom_storage_limit");
+});