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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/script/module_record_resolver_impl.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_testing.h"
#include "third_party/blink/renderer/core/script/js_module_script.h"
#include "third_party/blink/renderer/core/script/modulator.h"
#include "third_party/blink/renderer/core/testing/dummy_modulator.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/bindings/v8_throw_exception.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support_with_mock_scheduler.h"
#include "v8/include/v8.h"
namespace blink {
namespace {
class ModuleRecordResolverImplTestModulator final : public DummyModulator {
public:
ModuleRecordResolverImplTestModulator() {}
~ModuleRecordResolverImplTestModulator() override {}
void Trace(blink::Visitor*) override;
void SetScriptState(ScriptState* script_state) {
script_state_ = script_state;
}
int GetFetchedModuleScriptCalled() const {
return get_fetched_module_script_called_;
}
void SetModuleScript(ModuleScript* module_script) {
module_script_ = module_script;
}
const KURL& FetchedUrl() const { return fetched_url_; }
private:
// Implements Modulator:
ScriptState* GetScriptState() override { return script_state_; }
KURL ResolveModuleSpecifier(const String& module_request,
const KURL& base_url,
String* failure_reason) final {
return KURL(base_url, module_request);
}
ModuleScript* GetFetchedModuleScript(const KURL&) override;
Member<ScriptState> script_state_;
int get_fetched_module_script_called_ = 0;
KURL fetched_url_;
Member<ModuleScript> module_script_;
};
void ModuleRecordResolverImplTestModulator::Trace(blink::Visitor* visitor) {
visitor->Trace(script_state_);
visitor->Trace(module_script_);
DummyModulator::Trace(visitor);
}
ModuleScript* ModuleRecordResolverImplTestModulator::GetFetchedModuleScript(
const KURL& url) {
get_fetched_module_script_called_++;
fetched_url_ = url;
return module_script_.Get();
}
ModuleScript* CreateReferrerModuleScript(Modulator* modulator,
V8TestingScope& scope) {
KURL js_url("https://example.com/referrer.js");
ModuleRecord referrer_record = ModuleRecord::Compile(
scope.GetIsolate(), "import './target.js'; export const a = 42;", js_url,
js_url, ScriptFetchOptions(), TextPosition::MinimumPosition(),
ASSERT_NO_EXCEPTION);
KURL referrer_url("https://example.com/referrer.js");
auto* referrer_module_script =
JSModuleScript::CreateForTest(modulator, referrer_record, referrer_url);
return referrer_module_script;
}
ModuleScript* CreateTargetModuleScript(Modulator* modulator,
V8TestingScope& scope,
bool has_parse_error = false) {
KURL js_url("https://example.com/target.js");
ModuleRecord record = ModuleRecord::Compile(
scope.GetIsolate(), "export const pi = 3.14;", js_url, js_url,
ScriptFetchOptions(), TextPosition::MinimumPosition(),
ASSERT_NO_EXCEPTION);
KURL url("https://example.com/target.js");
auto* module_script = JSModuleScript::CreateForTest(modulator, record, url);
if (has_parse_error) {
v8::Local<v8::Value> error =
V8ThrowException::CreateError(scope.GetIsolate(), "hoge");
module_script->SetParseErrorAndClearRecord(
ScriptValue(scope.GetScriptState(), error));
}
return module_script;
}
} // namespace
class ModuleRecordResolverImplTest : public testing::Test {
public:
void SetUp() override;
ModuleRecordResolverImplTestModulator* Modulator() {
return modulator_.Get();
}
protected:
ScopedTestingPlatformSupport<TestingPlatformSupportWithMockScheduler>
platform_;
Persistent<ModuleRecordResolverImplTestModulator> modulator_;
};
void ModuleRecordResolverImplTest::SetUp() {
platform_->AdvanceClockSeconds(1.); // For non-zero DocumentParserTimings
modulator_ = MakeGarbageCollected<ModuleRecordResolverImplTestModulator>();
}
TEST_F(ModuleRecordResolverImplTest, RegisterResolveSuccess) {
V8TestingScope scope;
ModuleRecordResolver* resolver =
MakeGarbageCollected<ModuleRecordResolverImpl>(
Modulator(), scope.GetExecutionContext());
Modulator()->SetScriptState(scope.GetScriptState());
ModuleScript* referrer_module_script =
CreateReferrerModuleScript(modulator_, scope);
resolver->RegisterModuleScript(referrer_module_script);
ModuleScript* target_module_script =
CreateTargetModuleScript(modulator_, scope);
Modulator()->SetModuleScript(target_module_script);
ModuleRecord resolved =
resolver->Resolve("./target.js", referrer_module_script->Record(),
scope.GetExceptionState());
EXPECT_FALSE(scope.GetExceptionState().HadException());
EXPECT_EQ(resolved, target_module_script->Record());
EXPECT_EQ(1, modulator_->GetFetchedModuleScriptCalled());
EXPECT_EQ(modulator_->FetchedUrl(), target_module_script->BaseURL())
<< "Unexpectedly fetched URL: " << modulator_->FetchedUrl().GetString();
}
} // namespace blink
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