dart-sdk/tests/web_2/deferred_fail_and_retry_test.dart
Nate Biggs 6378357ef4 [dart2js] Fix failing web/deferred_fail_and_retry_test on d8 platform.
'document.body' is not defined on the d8 platform but 'document' is so this was throwing.

Change-Id: I6e4049d86beedf4dbadee466fa581e4d3426df41
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311560
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Nate Biggs <natebiggs@google.com>
2023-06-27 18:25:30 +00:00

60 lines
1.7 KiB
Dart

// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.7
// Test that when a deferred import fails to load, it is possible to retry.
import "deferred_fail_and_retry_lib.dart" deferred as lib;
import "package:expect/expect.dart";
import "package:async_helper/async_helper.dart";
import "dart:js" as js;
main() {
// We patch document.body.appendChild to change the script src on first
// invocation.
js.context.callMethod("eval", [
"""
retryCount = 0;
if (self.document && self.document.body) {
oldAppendChild = document.body.appendChild;
replacement = function(element) {
element.src = "non_existing.js";
document.body.appendChild = oldAppendChild;
document.body.appendChild(element);
if (retryCount < 3) {
retryCount++;
document.body.appendChild = replacement;
}
}
document.body.appendChild = replacement;
}
if (self.load) {
oldLoad = load;
replacement = function(uri) {
load = oldLoad;
load("non_existing.js");
if (retryCount < 3) {
retryCount++;
load = replacement;
}
}
load = replacement;
}
"""
]);
asyncStart();
lib.loadLibrary().then((_) {
Expect.fail("Library should not have loaded");
}, onError: (error) {
lib.loadLibrary().then((_) {
Expect.equals("loaded", lib.foo());
}, onError: (error) {
Expect.fail("Library should have loaded this time");
}).whenComplete(() {
asyncEnd();
});
});
}