Bug 1353736 - Add regression test for JSON viewer after updating triggeringPrincipal. r=gijs

devtools/client/jsonview/test/browser.ini

@@ -32,3 +32,4 @@ skip-if = (os == 'linux' && bits == 32 && debug) # bug 1328915, disable linux32
 [browser_jsonview_valid_json.js]
 [browser_jsonview_save_json.js]
 [browser_jsonview_manifest.js]
+[browser_json_refresh.js]

devtools/client/jsonview/test/browser_json_refresh.js

@@ -0,0 +1,63 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_JSON_FILE = "simple_json.json";
+
+add_task(function* () {
+  info("Test JSON refresh started");
+
+  // generate file:// URI for JSON file and load in new tab
+  let dir = getChromeDir(getResolvedURI(gTestPath));
+  dir.append(TEST_JSON_FILE);
+  let uri = Services.io.newFileURI(dir);
+  let tab = yield addJsonViewTab(uri.spec);
+
+  // perform sanity checks for URI and pricnipals in loadInfo
+  yield ContentTask.spawn(tab.linkedBrowser, {TEST_JSON_FILE}, function*({TEST_JSON_FILE}) { // eslint-disable-line
+    let channel = content.document.docShell.currentDocumentChannel;
+    let channelURI = channel.URI.spec;
+    ok(channelURI.startsWith("file://") && channelURI.includes(TEST_JSON_FILE),
+       "sanity: correct channel uri");
+    let contentPolicyType = channel.loadInfo.externalContentPolicyType;
+    is(contentPolicyType, Ci.nsIContentPolicy.TYPE_DOCUMENT,
+      "sanity: correct contentPolicyType");
+
+    let loadingPrincipal = channel.loadInfo.loadingPrincipal;
+    is(loadingPrincipal, null, "sanity: correct loadingPrincipal");
+    let triggeringPrincipal = channel.loadInfo.triggeringPrincipal;
+    ok(Services.scriptSecurityManager.isSystemPrincipal(triggeringPrincipal),
+       "sanity: correct triggeringPrincipal");
+    let principalToInherit = channel.loadInfo.principalToInherit;
+    ok(principalToInherit.isNullPrincipal, "sanity: correct principalToInherit");
+    ok(content.document.nodePrincipal.isNullPrincipal, "sanity: correct doc.nodePrincipal");
+  });
+
+  // reload the tab
+  let loaded = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+  tab.linkedBrowser.reload();
+  yield loaded;
+
+  // check principals in loadInfo are still correct
+  yield ContentTask.spawn(tab.linkedBrowser, {TEST_JSON_FILE}, function*({TEST_JSON_FILE}) { // eslint-disable-line
+    let channel = content.document.docShell.currentDocumentChannel;
+    let channelURI = channel.URI.spec;
+    ok(channelURI.startsWith("file://") && channelURI.includes(TEST_JSON_FILE),
+       "reloaded: correct channel uri");
+    let contentPolicyType = channel.loadInfo.externalContentPolicyType;
+    is(contentPolicyType, Ci.nsIContentPolicy.TYPE_DOCUMENT,
+      "reloaded: correct contentPolicyType");
+
+    let loadingPrincipal = channel.loadInfo.loadingPrincipal;
+    is(loadingPrincipal, null, "reloaded: correct loadingPrincipal");
+    let triggeringPrincipal = channel.loadInfo.triggeringPrincipal;
+    ok(Services.scriptSecurityManager.isSystemPrincipal(triggeringPrincipal),
+       "reloaded: correct triggeringPrincipal");
+    let principalToInherit = channel.loadInfo.principalToInherit;
+    ok(principalToInherit.isNullPrincipal, "reloaded: correct principalToInherit");
+    ok(content.document.nodePrincipal.isNullPrincipal, "reloaded: correct doc.nodePrincipal");
+  });
+});