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/* 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 "gtest/gtest.h"
#include "nsCOMPtr.h"
#include "nsIRunnable.h"
#include "nsIObserver.h"
#include "mozilla/Services.h"
#include "nsIObserverService.h"
extern "C" nsIObserverService* Rust_ObserveFromRust();
TEST(RustXpcom, ObserverFromRust)
{
nsCOMPtr<nsIObserverService> rust = Rust_ObserveFromRust();
nsCOMPtr<nsIObserverService> cpp = mozilla::services::GetObserverService();
EXPECT_EQ(rust, cpp);
}
extern "C" void Rust_ImplementRunnableInRust(bool* aItWorked,
nsIRunnable** aRunnable);
TEST(RustXpcom, ImplementRunnableInRust)
{
bool itWorked = false;
nsCOMPtr<nsIRunnable> runnable;
Rust_ImplementRunnableInRust(&itWorked, getter_AddRefs(runnable));
EXPECT_TRUE(runnable);
EXPECT_FALSE(itWorked);
runnable->Run();
EXPECT_TRUE(itWorked);
}
extern "C" void Rust_GetMultipleInterfaces(nsIRunnable** aRunnable,
nsIObserver** aObserver);
TEST(RustXpcom, DynamicCastVoid)
{
nsCOMPtr<nsIRunnable> runnable;
nsCOMPtr<nsIObserver> observer;
Rust_GetMultipleInterfaces(getter_AddRefs(runnable),
getter_AddRefs(observer));
// They should have different addresses when `static_cast` to void*
EXPECT_NE(static_cast<void*>(runnable.get()),
static_cast<void*>(observer.get()));
// These should be the same object
nsCOMPtr<nsISupports> runnableSupports = do_QueryInterface(runnable);
nsCOMPtr<nsISupports> observerSupports = do_QueryInterface(observer);
EXPECT_EQ(runnableSupports.get(), observerSupports.get());
#ifndef XP_WIN
// They should have the same address when dynamic_cast to void*
// dynamic_cast<void*> is not supported without rtti on windows.
EXPECT_EQ(dynamic_cast<void*>(runnable.get()),
dynamic_cast<void*>(observer.get()));
// The nsISupports pointer from `do_QueryInterface` should match
// `dynamic_cast<void*>`
EXPECT_EQ(dynamic_cast<void*>(observer.get()),
static_cast<void*>(observerSupports.get()));
#endif
}
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