mendi 0.0.2

Rust client for the Mendi neurofeedback headband over BLE using btleplug
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173

use mendi::protocol::*;
use mendi::wire;
use prost::Message;

#[test]
fn mendi_service_uuid_matches_vendor_base() {
    // The Mendi app uses "fc3e" + short_code + "-c6c4-49e6-922a-6e551c455af5"
    // Service UUID: fc3eabb0-c6c4-49e6-922a-6e551c455af5
    assert_eq!(
        MENDI_SERVICE_UUID.to_string(),
        "fc3eabb0-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn frame_characteristic_uuid() {
    assert_eq!(
        FRAME_CHARACTERISTIC.to_string(),
        "fc3eabb1-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn sensor_characteristic_uuid() {
    assert_eq!(
        SENSOR_CHARACTERISTIC.to_string(),
        "fc3eabb2-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn imu_characteristic_uuid() {
    assert_eq!(
        IMU_CHARACTERISTIC.to_string(),
        "fc3eabb3-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn adc_characteristic_uuid() {
    assert_eq!(
        ADC_CHARACTERISTIC.to_string(),
        "fc3eabb4-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn diagnostics_characteristic_uuid() {
    assert_eq!(
        DIAGNOSTICS_CHARACTERISTIC.to_string(),
        "fc3eabb5-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn calibration_characteristic_uuid() {
    assert_eq!(
        CALIBRATION_CHARACTERISTIC.to_string(),
        "fc3eabb6-c6c4-49e6-922a-6e551c455af5"
    );
}

#[test]
fn firmware_revision_uses_bluetooth_base() {
    // Standard BLE: 00002a26-0000-1000-8000-00805f9b34fb
    assert_eq!(
        FIRMWARE_REVISION.to_string(),
        "00002a26-0000-1000-8000-00805f9b34fb"
    );
}

#[test]
fn hardware_revision_uses_bluetooth_base() {
    assert_eq!(
        HARDWARE_REVISION.to_string(),
        "00002a27-0000-1000-8000-00805f9b34fb"
    );
}

#[test]
fn mendi_uuid_helper_arbitrary_short_code() {
    // 0x1234 → fc3e1234-c6c4-49e6-922a-6e551c455af5
    let uuid = mendi_uuid(0x1234);
    assert_eq!(uuid.to_string(), "fc3e1234-c6c4-49e6-922a-6e551c455af5");
}

#[test]
fn mendi_uuid_helper_zero() {
    let uuid = mendi_uuid(0x0000);
    assert_eq!(uuid.to_string(), "fc3e0000-c6c4-49e6-922a-6e551c455af5");
}

#[test]
fn mendi_uuid_helper_ffff() {
    let uuid = mendi_uuid(0xFFFF);
    assert_eq!(uuid.to_string(), "fc3effff-c6c4-49e6-922a-6e551c455af5");
}

// ── Protobuf encode tests for write operations ───────────────────────────────

#[test]
fn calibration_encode_roundtrip() {
    let msg = wire::Calibration {
        offset_l: -10.5,
        offset_r: 20.0,
        offset_p: 0.0,
        enable: true,
        low_power_mode: false,
    };
    let bytes = msg.encode_to_vec();
    let decoded = wire::Calibration::decode(bytes.as_slice()).unwrap();
    assert!((decoded.offset_l - (-10.5)).abs() < 0.001);
    assert!((decoded.offset_r - 20.0).abs() < 0.001);
    assert!((decoded.offset_p - 0.0).abs() < 0.001);
    assert!(decoded.enable);
    assert!(!decoded.low_power_mode);
}

#[test]
fn sensor_write_encode() {
    let msg = wire::Sensor {
        read: false,
        address: 0x42,
        data: 0x00ABCDEF,
    };
    let bytes = msg.encode_to_vec();
    let decoded = wire::Sensor::decode(bytes.as_slice()).unwrap();
    assert!(!decoded.read);
    assert_eq!(decoded.address, 0x42);
    assert_eq!(decoded.data, 0x00ABCDEF);
}

#[test]
fn sensor_read_request_encode() {
    let msg = wire::Sensor {
        read: true,
        address: 0x1A,
        data: 0,
    };
    let bytes = msg.encode_to_vec();
    let decoded = wire::Sensor::decode(bytes.as_slice()).unwrap();
    assert!(decoded.read);
    assert_eq!(decoded.address, 0x1A);
    assert_eq!(decoded.data, 0);
}

#[test]
fn imu_write_encode() {
    let msg = wire::Imu {
        read: 0,
        address: 0x0F,
        data: vec![0x01, 0x02, 0x03],
    };
    let bytes = msg.encode_to_vec();
    let decoded = wire::Imu::decode(bytes.as_slice()).unwrap();
    assert_eq!(decoded.read, 0);
    assert_eq!(decoded.address, 0x0F);
    assert_eq!(decoded.data, vec![0x01, 0x02, 0x03]);
}

#[test]
fn imu_read_request_encode() {
    let msg = wire::Imu {
        read: 5,
        address: 0x20,
        data: vec![],
    };
    let bytes = msg.encode_to_vec();
    let decoded = wire::Imu::decode(bytes.as_slice()).unwrap();
    assert_eq!(decoded.read, 5);
    assert_eq!(decoded.address, 0x20);
    assert!(decoded.data.is_empty());
}