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42 lines
1.7 KiB
C++
42 lines
1.7 KiB
C++
#include <gtest/gtest.h>
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#include <cstdint>
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#include <cstring>
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#include "esphome/components/ble_device_base/ble_device.h"
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namespace esphome::ble_device_base::testing {
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// A 16- or 32-bit UUID must compare equal to its 128-bit Bluetooth Base UUID form, matching
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// esp32_ble_tracker. The 128-bit raw is the base UUID (LSB-first) with the short value at
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// bytes 12.. : here 0x1234 -> bytes [12]=0x34, [13]=0x12.
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TEST(BleDeviceUuid, ShortFormMatchesEquivalentLongForm) {
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const ESPBTUUID u16 = ESPBTUUID::from_uint16(0x1234);
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const uint8_t raw128[16] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
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0x00, 0x10, 0x00, 0x00, 0x34, 0x12, 0x00, 0x00};
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const ESPBTUUID u128 = ESPBTUUID::from_raw(raw128);
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EXPECT_TRUE(u16 == u128);
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EXPECT_TRUE(u128 == u16); // symmetric
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}
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TEST(BleDeviceUuid, ThirtyTwoBitMatchesEquivalentLongForm) {
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const ESPBTUUID u32 = ESPBTUUID::from_uint32(0x1122AAFF);
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const uint8_t raw128[16] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
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0x00, 0x10, 0x00, 0x00, 0xFF, 0xAA, 0x22, 0x11};
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const ESPBTUUID u128 = ESPBTUUID::from_raw(raw128);
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EXPECT_TRUE(u32 == u128);
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}
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TEST(BleDeviceUuid, DifferentUuidsDoNotMatch) {
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EXPECT_FALSE(ESPBTUUID::from_uint16(0x1234) == ESPBTUUID::from_uint16(0x1235));
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const uint8_t raw128[16] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
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0x00, 0x10, 0x00, 0x00, 0x34, 0x12, 0x00, 0x00};
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// Same low bytes but a non-base prefix is a genuinely different 128-bit UUID.
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uint8_t custom[16];
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memcpy(custom, raw128, 16);
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custom[0] ^= 0x01;
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EXPECT_FALSE(ESPBTUUID::from_uint16(0x1234) == ESPBTUUID::from_raw(custom));
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}
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} // namespace esphome::ble_device_base::testing
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