1 files changed, 71 insertions, 0 deletions
diff --git a/browser/base/content/test/sanitize/browser_purgehistory_clears_sh.js b/browser/base/content/test/sanitize/browser_purgehistory_clears_sh.js
new file mode 100644
index 0000000000..abf11017dd
--- /dev/null
+++ b/browser/base/content/test/sanitize/browser_purgehistory_clears_sh.js
@@ -0,0 +1,71 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const url =
+  "https://example.org/browser/browser/base/content/test/sanitize/dummy_page.html";
+
+add_task(async function purgeHistoryTest() {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url,
+    },
+    async function purgeHistoryTestInner(browser) {
+      let backButton = browser.ownerDocument.getElementById("Browser:Back");
+      let forwardButton =
+        browser.ownerDocument.getElementById("Browser:Forward");
+
+      ok(
+        !browser.webNavigation.canGoBack,
+        "Initial value for webNavigation.canGoBack"
+      );
+      ok(
+        !browser.webNavigation.canGoForward,
+        "Initial value for webNavigation.canGoBack"
+      );
+      ok(backButton.hasAttribute("disabled"), "Back button is disabled");
+      ok(forwardButton.hasAttribute("disabled"), "Forward button is disabled");
+
+      await SpecialPowers.spawn(browser, [], async function () {
+        let startHistory = content.history.length;
+        content.history.pushState({}, "");
+        content.history.pushState({}, "");
+        content.history.back();
+        await new Promise(function (r) {
+          content.onpopstate = r;
+        });
+        let newHistory = content.history.length;
+        Assert.equal(startHistory, 1, "Initial SHistory size");
+        Assert.equal(newHistory, 3, "New SHistory size");
+      });
+
+      ok(
+        browser.webNavigation.canGoBack,
+        "New value for webNavigation.canGoBack"
+      );
+      ok(
+        browser.webNavigation.canGoForward,
+        "New value for webNavigation.canGoForward"
+      );
+      ok(!backButton.hasAttribute("disabled"), "Back button was enabled");
+      ok(!forwardButton.hasAttribute("disabled"), "Forward button was enabled");
+
+      await Sanitizer.sanitize(["history"]);
+
+      await SpecialPowers.spawn(browser, [], async function () {
+        Assert.equal(content.history.length, 1, "SHistory correctly cleared");
+      });
+
+      ok(
+        !browser.webNavigation.canGoBack,
+        "webNavigation.canGoBack correctly cleared"
+      );
+      ok(
+        !browser.webNavigation.canGoForward,
+        "webNavigation.canGoForward correctly cleared"
+      );
+      ok(backButton.hasAttribute("disabled"), "Back button was disabled");
+      ok(forwardButton.hasAttribute("disabled"), "Forward button was disabled");
+    }
+  );
+});