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// Copyright 2023 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include "pw_bluetooth_sapphire/internal/host/transport/emboss_packet.h"
#include <pw_bluetooth/hci_android.emb.h>
#include <pw_bluetooth/hci_commands.emb.h>
#include <pw_bluetooth/hci_test.emb.h>
#include "pw_bluetooth_sapphire/internal/host/common/byte_buffer.h"
#include "pw_bluetooth_sapphire/internal/host/hci-spec/vendor_protocol.h"
#include "pw_bluetooth_sapphire/internal/host/transport/emboss_control_packets.h"
#include "pw_unit_test/framework.h"
namespace bt::hci {
namespace {
TEST(StaticPacketTest, StaticPacketBasic) {
StaticPacket<pw::bluetooth::emboss::TestCommandPacketWriter> packet;
packet.view().header().opcode().BackingStorage().WriteUInt(1234);
packet.view().header().parameter_total_size().Write(1);
packet.view().payload().Write(13);
EXPECT_EQ(packet.data(), BufferView({0xD2, 0x04, 0x01, 0x0D}));
packet.SetToZeros();
EXPECT_EQ(packet.data(), BufferView({0, 0, 0, 0}));
}
TEST(EmbossCommandPacketTest, EmbossCommandPacketBasic) {
auto packet =
EmbossCommandPacket::New<pw::bluetooth::emboss::TestCommandPacketWriter>(
1234);
packet.view_t().payload().Write(13);
EXPECT_EQ(packet.size(), 4u);
EXPECT_EQ(packet.data(), BufferView({0xD2, 0x04, 0x01, 0x0D}));
EXPECT_EQ(packet.mutable_data(), packet.data());
EXPECT_EQ(packet.opcode(), 1234);
EXPECT_EQ(packet.ocf(), 1234 & 0x3FF);
EXPECT_EQ(packet.ogf(), 1234 >> 10);
EXPECT_EQ(packet.view_t().payload().Read(), 13);
}
TEST(EmbossCommandPacketTest, EmbossCommandPacketDeathTest) {
EmbossCommandPacket packet =
EmbossCommandPacket::New<pw::bluetooth::emboss::TestCommandPacketView>(
1234);
// Try and fail to request view for struct larger than TestCommandPacket.
EXPECT_DEATH_IF_SUPPORTED(
packet.view<pw::bluetooth::emboss::InquiryCommandView>(),
"emboss packet buffer not large enough");
// Try and fail to allocate 0 length packet (needs at least 3 bytes for the
// header).
EXPECT_DEATH_IF_SUPPORTED(
EmbossCommandPacket::New<pw::bluetooth::emboss::CommandHeaderView>(1234,
0),
"command packet size must be at least 3 bytes");
}
TEST(EmbossEventPacketTest, EmbossEventPacketBasic) {
auto packet =
EmbossEventPacket::New<pw::bluetooth::emboss::TestEventPacketWriter>(123);
packet.view_t().payload().Write(13);
EXPECT_EQ(packet.size(), 3u);
EXPECT_EQ(packet.data(), BufferView({0x7B, 0x01, 0x0D}));
EXPECT_EQ(packet.mutable_data(), packet.data());
EXPECT_EQ(packet.event_code(), 123);
EXPECT_EQ(packet.view_t().payload().Read(), 13);
}
TEST(EmbossEventPacketTest, EmbossEventPacketDeathTest) {
EmbossEventPacket packet =
EmbossEventPacket::New<pw::bluetooth::emboss::TestEventPacketView>(123);
// Try and fail to allocate 0 length packet (needs at least 2 bytes for the
// header).
EXPECT_DEATH_IF_SUPPORTED(EmbossEventPacket::New(0),
"event packet size must be at least 2 bytes");
}
TEST(EmbossEventPacketTest, StatusCode) {
// Confirm status can be read from vendor subevent.
auto packet = EmbossEventPacket::New<
pw::bluetooth::vendor::android_hci::LEMultiAdvtStateChangeSubeventWriter>(
hci_spec::kVendorDebugEventCode);
auto view = packet.view_t();
view.status().Write(hci_spec::StatusCode::OPERATION_CANCELLED_BY_HOST);
view.vendor_event().subevent_code().Write(
hci_spec::vendor::android::kLEMultiAdvtStateChangeSubeventCode);
ASSERT_TRUE(packet.StatusCode().has_value());
EXPECT_EQ(packet.StatusCode().value(),
hci_spec::StatusCode::OPERATION_CANCELLED_BY_HOST);
EXPECT_EQ(packet.ToResult(),
ToResult(hci_spec::StatusCode::OPERATION_CANCELLED_BY_HOST));
}
} // namespace
} // namespace bt::hci