1 files changed, 93 insertions, 0 deletions
diff --git a/dom/fs/test/gtest/FileSystemMocks.cpp b/dom/fs/test/gtest/FileSystemMocks.cpp
new file mode 100644
index 0000000000..0ae10d6929
--- /dev/null
+++ b/dom/fs/test/gtest/FileSystemMocks.cpp
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "FileSystemMocks.h"
+
+#include <string>
+
+#include "ErrorList.h"
+#include "gtest/gtest-assertion-result.h"
+#include "js/RootingAPI.h"
+#include "jsapi.h"
+#include "mozilla/dom/FileSystemManager.h"
+#include "nsContentUtils.h"
+#include "nsISupports.h"
+
+namespace mozilla::dom::fs::test {
+
+nsIGlobalObject* GetGlobal() {
+  AutoJSAPI jsapi;
+  DebugOnly<bool> ok = jsapi.Init(xpc::PrivilegedJunkScope());
+  MOZ_ASSERT(ok);
+
+  JSContext* cx = jsapi.cx();
+  mozilla::dom::GlobalObject globalObject(cx, JS::CurrentGlobalOrNull(cx));
+  nsCOMPtr<nsIGlobalObject> global =
+      do_QueryInterface(globalObject.GetAsSupports());
+  MOZ_ASSERT(global);
+
+  return global.get();
+}
+
+nsresult GetAsString(const RefPtr<Promise>& aPromise, nsAString& aString) {
+  AutoJSAPI jsapi;
+  DebugOnly<bool> ok = jsapi.Init(xpc::PrivilegedJunkScope());
+  MOZ_ASSERT(ok);
+
+  JSContext* cx = jsapi.cx();
+
+  JS::Rooted<JSObject*> promiseObj(cx, aPromise->PromiseObj());
+  JS::Rooted<JS::Value> vp(cx, JS::GetPromiseResult(promiseObj));
+
+  switch (aPromise->State()) {
+    case Promise::PromiseState::Pending: {
+      return NS_ERROR_DOM_INVALID_STATE_ERR;
+    }
+
+    case Promise::PromiseState::Resolved: {
+      if (nsContentUtils::StringifyJSON(cx, &vp, aString)) {
+        return NS_OK;
+      }
+
+      return NS_ERROR_UNEXPECTED;
+    }
+
+    case Promise::PromiseState::Rejected: {
+      if (vp.isInt32()) {
+        int32_t errorCode = vp.toInt32();
+        aString.AppendInt(errorCode);
+
+        return NS_OK;
+      }
+
+      if (!vp.isObject()) {
+        return NS_ERROR_UNEXPECTED;
+      }
+
+      RefPtr<Exception> exception;
+      UNWRAP_OBJECT(Exception, &vp, exception);
+      if (!exception) {
+        return NS_ERROR_UNEXPECTED;
+      }
+
+      aString.Append(NS_ConvertUTF8toUTF16(
+          GetStaticErrorName(static_cast<nsresult>(exception->Result()))));
+
+      return NS_OK;
+    }
+
+    default:
+      break;
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+mozilla::ipc::PrincipalInfo GetPrincipalInfo() {
+  return mozilla::ipc::PrincipalInfo{mozilla::ipc::SystemPrincipalInfo{}};
+}
+
+}  // namespace mozilla::dom::fs::test