/* 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");
    }
  );
});