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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
#include "gtest/gtest.h"
#include "js/Value.h"
#include "jsapi.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/UnderlyingSinkCallbackHelpers.h"
#include "nsError.h"
#include "xpcpublic.h"
using namespace mozilla;
using namespace mozilla::dom;
namespace {
// Exposes the protected BuildErrorStatus() so tests can exercise the default
// abort-reason mapping of WritableStreamToOutputAlgorithms directly.
class DefaultOutputAlgorithms final : public WritableStreamToOutputAlgorithms {
public:
DefaultOutputAlgorithms()
: WritableStreamToOutputAlgorithms(nullptr, nullptr) {}
using WritableStreamToOutputAlgorithms::BuildErrorStatus;
protected:
~DefaultOutputAlgorithms() override = default;
};
// Overrides BuildErrorStatus() the way a real subclass (e.g. WebSerial) would,
// to confirm the extracted virtual is actually consulted.
class OverridingOutputAlgorithms final
: public WritableStreamToOutputAlgorithms {
public:
OverridingOutputAlgorithms()
: WritableStreamToOutputAlgorithms(nullptr, nullptr) {}
nsresult BuildErrorStatus(JSContext*,
const Optional<JS::Handle<JS::Value>>&) override {
return NS_ERROR_DOM_SERIAL_PARITY_ERROR;
}
nsresult CallBuildErrorStatus(
JSContext* aCx, const Optional<JS::Handle<JS::Value>>& aReason) {
return BuildErrorStatus(aCx, aReason);
}
protected:
~OverridingOutputAlgorithms() override = default;
};
} // namespace
// With no abort reason the default mapping falls back to the generic
// WebTransport code.
TEST(WritableStreamToOutput, BuildErrorStatusNoReason)
{
RefPtr<DefaultOutputAlgorithms> algorithms = new DefaultOutputAlgorithms();
Optional<JS::Handle<JS::Value>> noReason;
EXPECT_EQ(algorithms->BuildErrorStatus(nullptr, noReason),
NS_ERROR_WEBTRANSPORT_CODE_BASE);
}
// A non-object reason is not a WebTransportError, so it also falls back.
TEST(WritableStreamToOutput, BuildErrorStatusNonObjectReason)
{
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
RefPtr<DefaultOutputAlgorithms> algorithms = new DefaultOutputAlgorithms();
Optional<JS::Handle<JS::Value>> reason(cx, JS::Int32Value(42));
EXPECT_EQ(algorithms->BuildErrorStatus(cx, reason),
NS_ERROR_WEBTRANSPORT_CODE_BASE);
}
// A plain object reason (that does not unwrap to a WebTransportError) falls
// back to the generic code as well.
TEST(WritableStreamToOutput, BuildErrorStatusPlainObjectReason)
{
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
ASSERT_TRUE(obj);
RefPtr<DefaultOutputAlgorithms> algorithms = new DefaultOutputAlgorithms();
Optional<JS::Handle<JS::Value>> reason(cx, JS::ObjectValue(*obj));
EXPECT_EQ(algorithms->BuildErrorStatus(cx, reason),
NS_ERROR_WEBTRANSPORT_CODE_BASE);
}
// A subclass can substitute its own status mapping.
TEST(WritableStreamToOutput, BuildErrorStatusSubclassOverride)
{
RefPtr<OverridingOutputAlgorithms> algorithms =
new OverridingOutputAlgorithms();
Optional<JS::Handle<JS::Value>> noReason;
EXPECT_EQ(algorithms->CallBuildErrorStatus(nullptr, noReason),
NS_ERROR_DOM_SERIAL_PARITY_ERROR);
}