1 files changed, 89 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_tabs_reload_bypass_cache.js b/browser/components/extensions/test/browser/browser_ext_tabs_reload_bypass_cache.js
new file mode 100644
index 0000000000..ed3d8c7a14
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_tabs_reload_bypass_cache.js
@@ -0,0 +1,89 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+add_task(async function () {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: ["tabs", "<all_urls>"],
+    },
+
+    async background() {
+      const BASE =
+        "http://mochi.test:8888/browser/browser/components/extensions/test/browser/";
+      const URL = BASE + "file_bypass_cache.sjs";
+
+      let tabId = null;
+      let loadPromise, resolveLoad;
+      function resetLoad() {
+        loadPromise = new Promise(resolve => {
+          resolveLoad = resolve;
+        });
+      }
+      function awaitLoad() {
+        return loadPromise.then(() => {
+          resetLoad();
+        });
+      }
+      resetLoad();
+
+      browser.tabs.onUpdated.addListener(function listener(
+        tabId_,
+        changed,
+        tab
+      ) {
+        if (tabId == tabId_ && changed.status == "complete" && tab.url == URL) {
+          resolveLoad();
+        }
+      });
+
+      try {
+        let tab = await browser.tabs.create({ url: URL });
+        tabId = tab.id;
+        await awaitLoad();
+
+        await browser.tabs.reload(tab.id, { bypassCache: false });
+        await awaitLoad();
+
+        let [textContent] = await browser.tabs.executeScript(tab.id, {
+          code: "document.body.textContent",
+        });
+        browser.test.assertEq(
+          "",
+          textContent,
+          "`textContent` should be empty when bypassCache=false"
+        );
+
+        await browser.tabs.reload(tab.id, { bypassCache: true });
+        await awaitLoad();
+
+        [textContent] = await browser.tabs.executeScript(tab.id, {
+          code: "document.body.textContent",
+        });
+
+        let [pragma, cacheControl] = textContent.split(":");
+        browser.test.assertEq(
+          "no-cache",
+          pragma,
+          "`pragma` should be set to `no-cache` when bypassCache is true"
+        );
+        browser.test.assertEq(
+          "no-cache",
+          cacheControl,
+          "`cacheControl` should be set to `no-cache` when bypassCache is true"
+        );
+
+        await browser.tabs.remove(tab.id);
+
+        browser.test.notifyPass("tabs.reload_bypass_cache");
+      } catch (error) {
+        browser.test.fail(`${error} :: ${error.stack}`);
+        browser.test.notifyFail("tabs.reload_bypass_cache");
+      }
+    },
+  });
+
+  await extension.startup();
+  await extension.awaitFinish("tabs.reload_bypass_cache");
+  await extension.unload();
+});