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/******************************************************************************
*
* Copyright 2018 The Android Open Source Project
*
* 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:
*
* http://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 <gtest/gtest.h>
#include <base/logging.h>
#include <base/strings/string_number_conversions.h>
#include "gatt/database.h"
#include "gatt/database_builder.h"
#include "stack/include/gattdefs.h"
using bluetooth::Uuid;
namespace gatt {
namespace {
const Uuid PRIMARY_SERVICE = Uuid::From16Bit(GATT_UUID_PRI_SERVICE);
const Uuid SECONDARY_SERVICE = Uuid::From16Bit(GATT_UUID_SEC_SERVICE);
const Uuid INCLUDE = Uuid::From16Bit(GATT_UUID_INCLUDE_SERVICE);
const Uuid CHARACTERISTIC = Uuid::From16Bit(GATT_UUID_CHAR_DECLARE);
const Uuid CHARACTERISTIC_EXTENDED_PROPERTIES =
Uuid::From16Bit(GATT_UUID_CHAR_EXT_PROP);
Uuid SERVICE_1_UUID = Uuid::FromString("1800");
Uuid SERVICE_2_UUID = Uuid::FromString("1801");
Uuid SERVICE_1_CHAR_1_UUID = Uuid::FromString("2a00");
Uuid SERVICE_1_CHAR_1_DESC_1_UUID = Uuid::FromString("2902");
} // namespace
/* This test makes sure that each possible GATT cache element is properly
* serialized into StoredAttribute */
TEST(GattDatabaseTest, serialize_deserialize_binary_test) {
DatabaseBuilder builder;
builder.AddService(0x0001, 0x000f, SERVICE_1_UUID, true);
builder.AddService(0x0010, 0x001f, SERVICE_2_UUID, false);
builder.AddIncludedService(0x0002, SERVICE_2_UUID, 0x0010, 0x001f);
builder.AddCharacteristic(0x0003, 0x0004, SERVICE_1_CHAR_1_UUID, 0x02);
builder.AddDescriptor(0x0005, SERVICE_1_CHAR_1_DESC_1_UUID);
builder.AddDescriptor(0x0006, CHARACTERISTIC_EXTENDED_PROPERTIES);
// Set value of only «Characteristic Extended Properties» descriptor
builder.SetValueOfDescriptors({0x0001});
Database db = builder.Build();
std::vector<StoredAttribute> serialized = db.Serialize();
// Primary Service
EXPECT_EQ(serialized[0].handle, 0x0001);
EXPECT_EQ(serialized[0].type, PRIMARY_SERVICE);
EXPECT_EQ(serialized[0].value.service.uuid, SERVICE_1_UUID);
EXPECT_EQ(serialized[0].value.service.end_handle, 0x000f);
// Secondary Service
EXPECT_EQ(serialized[1].handle, 0x0010);
EXPECT_EQ(serialized[1].type, SECONDARY_SERVICE);
EXPECT_EQ(serialized[1].value.service.uuid, SERVICE_2_UUID);
EXPECT_EQ(serialized[1].value.service.end_handle, 0x001f);
// Included Service
EXPECT_EQ(serialized[2].handle, 0x0002);
EXPECT_EQ(serialized[2].type, INCLUDE);
EXPECT_EQ(serialized[2].value.included_service.handle, 0x0010);
EXPECT_EQ(serialized[2].value.included_service.end_handle, 0x001f);
EXPECT_EQ(serialized[2].value.included_service.uuid, SERVICE_2_UUID);
// Characteristic
EXPECT_EQ(serialized[3].handle, 0x0003);
EXPECT_EQ(serialized[3].type, CHARACTERISTIC);
EXPECT_EQ(serialized[3].value.characteristic.properties, 0x02);
EXPECT_EQ(serialized[3].value.characteristic.value_handle, 0x0004);
EXPECT_EQ(serialized[3].value.characteristic.uuid, SERVICE_1_CHAR_1_UUID);
// Descriptor
EXPECT_EQ(serialized[4].handle, 0x0005);
EXPECT_EQ(serialized[4].type, SERVICE_1_CHAR_1_DESC_1_UUID);
// Characteristic Extended Properties Descriptor
EXPECT_EQ(serialized[5].handle, 0x0006);
EXPECT_EQ(serialized[5].type, CHARACTERISTIC_EXTENDED_PROPERTIES);
EXPECT_EQ(serialized[5].value.characteristic_extended_properties, 0x0001);
}
/* This test makes sure that Service represented in StoredAttribute have proper
* binary format. */
TEST(GattCacheTest, stored_attribute_to_binary_service_test) {
StoredAttribute attr;
/* make sure padding at end of union is cleared */
memset(&attr, 0, sizeof(attr));
attr = {
.handle = 0x0001,
.type = PRIMARY_SERVICE,
.value = {.service = {.uuid = Uuid::FromString("1800"),
.end_handle = 0x001c}},
};
constexpr size_t len = sizeof(StoredAttribute);
// clang-format off
uint8_t binary_form[len] = {
/*handle */ 0x01, 0x00,
/* type*/ 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* service uuid */ 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* end handle */ 0x1C, 0x00,
/* cleared padding at end of union*/ 0x00, 0x00};
// clang-format on
// useful for debugging:
// LOG(ERROR) << " " << base::HexEncode(&attr, len);
EXPECT_EQ(memcmp(binary_form, &attr, len), 0);
}
/* This test makes sure that Service represented in StoredAttribute have proper
* binary format. */
TEST(GattCacheTest, stored_attribute_to_binary_included_service_test) {
StoredAttribute attr;
/* make sure padding at end of union is cleared */
memset(&attr, 0, sizeof(attr));
attr = {
.handle = 0x0001,
.type = INCLUDE,
.value = {.included_service =
{
.handle = 0x0010,
.end_handle = 0x001f,
.uuid = Uuid::FromString("1801"),
}},
};
constexpr size_t len = sizeof(StoredAttribute);
// clang-format off
uint8_t binary_form[len] = {
/*handle */ 0x01, 0x00,
/* type*/ 0x00, 0x00, 0x28, 0x02, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* handle */ 0x10, 0x00,
/* end handle */ 0x1f, 0x00,
/* service uuid */ 0x00, 0x00, 0x18, 0x01, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
// clang-format on
// useful for debugging:
// LOG(ERROR) << " " << base::HexEncode(&attr, len);
EXPECT_EQ(memcmp(binary_form, &attr, len), 0);
}
/* This test makes sure that «Characteristic Extended Properties» descriptor
* represented in StoredAttribute have proper binary format. */
TEST(GattCacheTest, stored_attribute_to_binary_characteristic_test) {
StoredAttribute attr;
/* make sure padding at end of union is cleared */
memset(&attr, 0, sizeof(attr));
attr = {
.handle = 0x0002,
.type = CHARACTERISTIC,
.value = {.characteristic = {.properties = 0x02,
.value_handle = 0x0003,
.uuid = Uuid::FromString("2a00")}},
};
constexpr size_t len = sizeof(StoredAttribute);
// clang-format off
uint8_t binary_form[len] = {
/*handle */ 0x02, 0x00,
/* type */ 0x00, 0x00, 0x28, 0x03, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* properties */ 0x02,
/* after properties there is one byte padding. This might cause troube
on other platforms, investigate if it's ever a problem */ 0x00,
/* value handle */ 0x03, 0x00,
/* uuid */ 0x00, 0x00, 0x2a, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
// clang-format on
// useful for debugging:
// LOG(ERROR) << " " << base::HexEncode(&attr, len);
EXPECT_EQ(memcmp(binary_form, &attr, len), 0);
}
/* This test makes sure that Descriptor represented in StoredAttribute have
* proper binary format. */
TEST(GattCacheTest, stored_attribute_to_binary_descriptor_test) {
StoredAttribute attr;
/* make sure padding at end of union is cleared */
memset(&attr, 0, sizeof(attr));
attr = {.handle = 0x0003, .type = Uuid::FromString("2902"), .value = {}};
constexpr size_t len = sizeof(StoredAttribute);
// clang-format off
uint8_t binary_form[len] = {
/*handle */ 0x03, 0x00,
/* type */ 0x00, 0x00, 0x29, 0x02, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* clear padding */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
// clang-format on
// useful for debugging:
// LOG(ERROR) << " " << base::HexEncode(&attr, len);
EXPECT_EQ(memcmp(binary_form, &attr, len), 0);
}
// Example from Bluetooth SPEC V5.2, Vol 3, Part G, APPENDIX B
TEST(GattDatabaseTest, hash_test) {
DatabaseBuilder builder;
builder.AddService(0x0001, 0x0005, Uuid::From16Bit(0x1800), true);
builder.AddService(0x0006, 0x000D, Uuid::From16Bit(0x1801), true);
builder.AddService(0x000E, 0x0013, Uuid::From16Bit(0x1808), true);
builder.AddService(0x0014, 0xFFFF, Uuid::From16Bit(0x180F), false);
builder.AddCharacteristic(0x0002, 0x0003, Uuid::From16Bit(0x2A00), 0x0A);
builder.AddCharacteristic(0x0004, 0x0005, Uuid::From16Bit(0x2A01), 0x02);
builder.AddCharacteristic(0x0007, 0x0008, Uuid::From16Bit(0x2A05), 0x20);
builder.AddDescriptor(0x0009, Uuid::From16Bit(0x2902));
builder.AddCharacteristic(0x000A, 0x000B, Uuid::From16Bit(0x2B29), 0x0A);
builder.AddCharacteristic(0x000C, 0x000D, Uuid::From16Bit(0x2B2A), 0x02);
builder.AddIncludedService(0x000F, Uuid::From16Bit(0x180F), 0x0014, 0x0016);
builder.AddCharacteristic(0x0010, 0x0011, Uuid::From16Bit(0x2A18), 0xA2);
builder.AddDescriptor(0x0012, Uuid::From16Bit(0x2902));
builder.AddDescriptor(0x0013, Uuid::From16Bit(0x2900));
builder.AddCharacteristic(0x0015, 0x0016, Uuid::From16Bit(0x2A19), 0x02);
// set characteristic extended properties descriptor values
std::vector<uint16_t> descriptorValues = {0x0000};
builder.SetValueOfDescriptors(descriptorValues);
Database db = builder.Build();
// Big endian example from Bluetooth SPEC V5.2, Vol 3, Part G, APPENDIX B
Octet16 expected_hash{0xF1, 0xCA, 0x2D, 0x48, 0xEC, 0xF5, 0x8B, 0xAC,
0x8A, 0x88, 0x30, 0xBB, 0xB9, 0xFB, 0xA9, 0x90};
Octet16 hash = db.Hash();
// Convert output hash from little endian to big endian
std::reverse(hash.begin(), hash.end());
EXPECT_EQ(hash, expected_hash);
}
/* This test makes sure that Descriptor represented in StoredAttribute have
* proper binary format. */
TEST(GattCacheTest,
stored_attribute_to_binary_characteristic_extended_properties_test) {
StoredAttribute attr;
/* make sure padding at end of union is cleared */
memset(&attr, 0, sizeof(attr));
attr = {.handle = 0x0003,
.type = Uuid::FromString("2900"),
.value = {.characteristic_extended_properties = 0x0001}};
constexpr size_t len = sizeof(StoredAttribute);
// clang-format off
uint8_t binary_form[len] = {
/*handle */ 0x03, 0x00,
/* type */ 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
/* characteristic extended properties */ 0x01, 0x00,
/* clear padding */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00};
// clang-format on
// useful for debugging:
// LOG(ERROR) << " " << base::HexEncode(&attr, len);
EXPECT_EQ(memcmp(binary_form, &attr, len), 0);
}
} // namespace gatt