| // Copyright 2022 The Fuchsia 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 <fidl/fuchsia.driver.transport.test/cpp/wire.h> |
| #include <fuchsia/driver/test/cpp/fidl.h> |
| #include <lib/device-watcher/cpp/device-watcher.h> |
| #include <lib/driver_test_realm/realm_builder/cpp/lib.h> |
| #include <lib/fdio/fd.h> |
| #include <lib/fdio/fdio.h> |
| #include <lib/fidl/cpp/synchronous_interface_ptr.h> |
| #include <lib/sys/component/cpp/testing/realm_builder.h> |
| #include <lib/sys/component/cpp/testing/realm_builder_types.h> |
| |
| #include <fbl/unique_fd.h> |
| |
| #include "src/lib/testing/loop_fixture/test_loop_fixture.h" |
| |
| using fuchsia_driver_transport_test::TestDevice; |
| using fuchsia_driver_transport_test::TestDeviceChild; |
| |
| class RuntimeTest : public gtest::TestLoopFixture { |
| protected: |
| void SetUp() override { |
| // Create and build the realm. |
| auto realm_builder = component_testing::RealmBuilder::Create(); |
| driver_test_realm::Setup(realm_builder); |
| realm_ = std::make_unique<component_testing::RealmRoot>(realm_builder.Build(dispatcher())); |
| |
| // Start DriverTestRealm. |
| fidl::SynchronousInterfacePtr<fuchsia::driver::test::Realm> driver_test_realm; |
| ASSERT_EQ(ZX_OK, realm_->component().Connect(driver_test_realm.NewRequest())); |
| fuchsia::driver::test::Realm_Start_Result realm_result; |
| ASSERT_EQ(ZX_OK, driver_test_realm->Start(fuchsia::driver::test::RealmArgs(), &realm_result)); |
| ASSERT_FALSE(realm_result.is_err()); |
| |
| // Connect to dev. |
| fidl::InterfaceHandle<fuchsia::io::Node> dev; |
| zx_status_t status = |
| realm_->component().Connect("dev-topological", dev.NewRequest().TakeChannel()); |
| ASSERT_EQ(status, ZX_OK); |
| |
| fbl::unique_fd root_fd; |
| status = fdio_fd_create(dev.TakeChannel().release(), root_fd.reset_and_get_address()); |
| ASSERT_EQ(status, ZX_OK); |
| |
| zx::result parent_channel = |
| device_watcher::RecursiveWaitForFile(root_fd.get(), "sys/test/parent"); |
| ASSERT_EQ(parent_channel.status_value(), ZX_OK); |
| parent_client = fidl::ClientEnd<TestDevice>(std::move(parent_channel.value())); |
| ASSERT_TRUE(parent_client.is_valid()); |
| |
| zx::result child_channel = |
| device_watcher::RecursiveWaitForFile(root_fd.get(), "sys/test/parent/child"); |
| ASSERT_EQ(child_channel.status_value(), ZX_OK); |
| child_client = fidl::ClientEnd<TestDeviceChild>(std::move(child_channel.value())); |
| ASSERT_TRUE(child_client.is_valid()); |
| } |
| |
| // Sets test data in the parent device that can be retrieved by the child device. |
| void ParentSetTestData(uint8_t* data_to_send, size_t size); |
| // Sends a FIDL request to the child device to retrieve data from the parent device |
| // using its runtime channel. |
| // Asserts that the data matches |want_data| and |want_size|. |
| void GetParentDataOverDriverTransport(const void* want_data, size_t want_size); |
| |
| fidl::ClientEnd<TestDeviceChild> child_client; |
| fidl::ClientEnd<TestDevice> parent_client; |
| |
| private: |
| std::unique_ptr<component_testing::RealmRoot> realm_; |
| }; |
| |
| void RuntimeTest::ParentSetTestData(uint8_t* data_to_send, size_t size) { |
| auto data = fidl::VectorView<uint8_t>::FromExternal(data_to_send, size); |
| |
| auto response = fidl::WireCall(parent_client)->SetTestData(std::move(data)); |
| ASSERT_EQ(ZX_OK, response.status()); |
| zx_status_t call_status = ZX_OK; |
| if (response->is_error()) { |
| call_status = response->error_value(); |
| } |
| ASSERT_EQ(call_status, ZX_OK); |
| } |
| |
| void RuntimeTest::GetParentDataOverDriverTransport(const void* want_data, size_t want_size) { |
| auto response = fidl::WireCall(child_client)->GetParentDataOverDriverTransport(); |
| ASSERT_EQ(ZX_OK, response.status()); |
| |
| zx_status_t call_status = ZX_OK; |
| if (response->is_error()) { |
| call_status = response->error_value(); |
| } |
| ASSERT_EQ(call_status, ZX_OK); |
| |
| auto data = response->value()->out; |
| ASSERT_EQ(data.count(), want_size); |
| ASSERT_EQ(memcmp(data.data(), want_data, want_size), 0); |
| } |
| |
| TEST_F(RuntimeTest, TransferOverDriverTransport) { |
| uint8_t kTestString[] = "some test string"; |
| ASSERT_NO_FATAL_FAILURE(ParentSetTestData(kTestString, std::size(kTestString))); |
| ASSERT_NO_FATAL_FAILURE(GetParentDataOverDriverTransport(kTestString, std::size(kTestString))); |
| |
| uint8_t kTestString2[] = "another test string"; |
| ASSERT_NO_FATAL_FAILURE(ParentSetTestData(kTestString2, std::size(kTestString))); |
| ASSERT_NO_FATAL_FAILURE(GetParentDataOverDriverTransport(kTestString2, std::size(kTestString))); |
| } |