aranet_types/
lib.rs

1//! Platform-agnostic types for Aranet environmental sensors.
2//!
3//! This crate provides shared types that can be used by both native
4//! (aranet-core) and WebAssembly (aranet-wasm) implementations.
5//!
6//! # Features
7//!
8//! - Core data types for sensor readings
9//! - Device information structures
10//! - UUID constants for BLE characteristics
11//! - Error types for data parsing
12//!
13//! # Example
14//!
15//! ```
16//! use aranet_types::{CurrentReading, Status, DeviceType};
17//!
18//! // Types can be used for parsing and serialization
19//! ```
20
21pub mod error;
22pub mod types;
23pub mod uuid;
24
25pub use error::{ParseError, ParseResult};
26pub use types::{
27    CurrentReading, CurrentReadingBuilder, DeviceInfo, DeviceInfoBuilder, DeviceType,
28    HistoryRecord, HistoryRecordBuilder, MIN_CURRENT_READING_BYTES, Status,
29};
30
31// Re-export uuid module with a clearer name to avoid confusion with the `uuid` crate.
32// The `uuids` alias is kept for backwards compatibility.
33pub use uuid as ble;
34#[doc(hidden)]
35pub use uuid as uuids;
36
37#[cfg(test)]
38mod tests {
39    use super::*;
40
41    // --- CurrentReading parsing tests ---
42
43    #[test]
44    fn test_parse_current_reading_from_valid_bytes() {
45        // Construct test bytes:
46        // CO2: 800 (0x0320 LE -> [0x20, 0x03])
47        // Temperature: 450 raw (22.5°C = 450/20) -> [0xC2, 0x01]
48        // Pressure: 10132 raw (1013.2 hPa = 10132/10) -> [0x94, 0x27]
49        // Humidity: 45
50        // Battery: 85
51        // Status: 1 (Green)
52        // Interval: 300 -> [0x2C, 0x01]
53        // Age: 120 -> [0x78, 0x00]
54        let bytes: [u8; 13] = [
55            0x20, 0x03, // CO2 = 800
56            0xC2, 0x01, // temp_raw = 450
57            0x94, 0x27, // pressure_raw = 10132
58            45,   // humidity
59            85,   // battery
60            1,    // status = Green
61            0x2C, 0x01, // interval = 300
62            0x78, 0x00, // age = 120
63        ];
64
65        let reading = CurrentReading::from_bytes(&bytes).unwrap();
66
67        assert_eq!(reading.co2, 800);
68        assert!((reading.temperature - 22.5).abs() < 0.01);
69        assert!((reading.pressure - 1013.2).abs() < 0.1);
70        assert_eq!(reading.humidity, 45);
71        assert_eq!(reading.battery, 85);
72        assert_eq!(reading.status, Status::Green);
73        assert_eq!(reading.interval, 300);
74        assert_eq!(reading.age, 120);
75    }
76
77    #[test]
78    fn test_parse_current_reading_from_insufficient_bytes() {
79        let bytes: [u8; 10] = [0; 10]; // Only 10 bytes, need 13
80
81        let result = CurrentReading::from_bytes(&bytes);
82
83        assert!(result.is_err());
84        let err = result.unwrap_err();
85        assert_eq!(
86            err,
87            ParseError::InsufficientBytes {
88                expected: 13,
89                actual: 10
90            }
91        );
92        assert!(err.to_string().contains("expected 13"));
93        assert!(err.to_string().contains("got 10"));
94    }
95
96    #[test]
97    fn test_parse_current_reading_zero_bytes() {
98        let bytes: [u8; 0] = [];
99
100        let result = CurrentReading::from_bytes(&bytes);
101        assert!(result.is_err());
102    }
103
104    #[test]
105    fn test_parse_current_reading_all_zeros() {
106        let bytes: [u8; 13] = [0; 13];
107
108        let reading = CurrentReading::from_bytes(&bytes).unwrap();
109        assert_eq!(reading.co2, 0);
110        assert!((reading.temperature - 0.0).abs() < 0.01);
111        assert!((reading.pressure - 0.0).abs() < 0.1);
112        assert_eq!(reading.humidity, 0);
113        assert_eq!(reading.battery, 0);
114        assert_eq!(reading.status, Status::Error);
115        assert_eq!(reading.interval, 0);
116        assert_eq!(reading.age, 0);
117    }
118
119    #[test]
120    fn test_parse_current_reading_max_values() {
121        let bytes: [u8; 13] = [
122            0xFF, 0xFF, // CO2 = 65535
123            0xFF, 0xFF, // temp_raw = 65535
124            0xFF, 0xFF, // pressure_raw = 65535
125            0xFF, // humidity = 255
126            0xFF, // battery = 255
127            3,    // status = Red
128            0xFF, 0xFF, // interval = 65535
129            0xFF, 0xFF, // age = 65535
130        ];
131
132        let reading = CurrentReading::from_bytes(&bytes).unwrap();
133        assert_eq!(reading.co2, 65535);
134        assert!((reading.temperature - 3276.75).abs() < 0.01); // 65535/20
135        assert!((reading.pressure - 6553.5).abs() < 0.1); // 65535/10
136        assert_eq!(reading.humidity, 255);
137        assert_eq!(reading.battery, 255);
138        assert_eq!(reading.interval, 65535);
139        assert_eq!(reading.age, 65535);
140    }
141
142    #[test]
143    fn test_parse_current_reading_high_co2_red_status() {
144        // 2000 ppm CO2 = Red status
145        let bytes: [u8; 13] = [
146            0xD0, 0x07, // CO2 = 2000
147            0xC2, 0x01, // temp
148            0x94, 0x27, // pressure
149            50, 80, 3, // Red status
150            0x2C, 0x01, 0x78, 0x00,
151        ];
152
153        let reading = CurrentReading::from_bytes(&bytes).unwrap();
154        assert_eq!(reading.co2, 2000);
155        assert_eq!(reading.status, Status::Red);
156    }
157
158    #[test]
159    fn test_parse_current_reading_moderate_co2_yellow_status() {
160        // 1200 ppm CO2 = Yellow status
161        let bytes: [u8; 13] = [
162            0xB0, 0x04, // CO2 = 1200
163            0xC2, 0x01, 0x94, 0x27, 50, 80, 2, // Yellow status
164            0x2C, 0x01, 0x78, 0x00,
165        ];
166
167        let reading = CurrentReading::from_bytes(&bytes).unwrap();
168        assert_eq!(reading.co2, 1200);
169        assert_eq!(reading.status, Status::Yellow);
170    }
171
172    #[test]
173    fn test_parse_current_reading_extra_bytes_ignored() {
174        // More than 13 bytes should work (extra bytes ignored)
175        let bytes: [u8; 16] = [
176            0x20, 0x03, 0xC2, 0x01, 0x94, 0x27, 45, 85, 1, 0x2C, 0x01, 0x78, 0x00, 0xAA, 0xBB, 0xCC,
177        ];
178
179        let reading = CurrentReading::from_bytes(&bytes).unwrap();
180        assert_eq!(reading.co2, 800);
181    }
182
183    // --- Status enum tests ---
184
185    #[test]
186    fn test_status_from_u8() {
187        assert_eq!(Status::from(0), Status::Error);
188        assert_eq!(Status::from(1), Status::Green);
189        assert_eq!(Status::from(2), Status::Yellow);
190        assert_eq!(Status::from(3), Status::Red);
191        // Unknown values should map to Error
192        assert_eq!(Status::from(4), Status::Error);
193        assert_eq!(Status::from(255), Status::Error);
194    }
195
196    #[test]
197    fn test_status_repr_values() {
198        assert_eq!(Status::Error as u8, 0);
199        assert_eq!(Status::Green as u8, 1);
200        assert_eq!(Status::Yellow as u8, 2);
201        assert_eq!(Status::Red as u8, 3);
202    }
203
204    #[test]
205    fn test_status_debug() {
206        assert_eq!(format!("{:?}", Status::Green), "Green");
207        assert_eq!(format!("{:?}", Status::Yellow), "Yellow");
208        assert_eq!(format!("{:?}", Status::Red), "Red");
209        assert_eq!(format!("{:?}", Status::Error), "Error");
210    }
211
212    #[test]
213    fn test_status_clone() {
214        let status = Status::Green;
215        let cloned = status.clone();
216        assert_eq!(status, cloned);
217    }
218
219    #[test]
220    fn test_status_copy() {
221        let status = Status::Red;
222        let copied = status; // Copy
223        assert_eq!(status, copied); // Original still valid
224    }
225
226    // --- DeviceType enum tests ---
227
228    #[test]
229    fn test_device_type_values() {
230        assert_eq!(DeviceType::Aranet4 as u8, 0xF1);
231        assert_eq!(DeviceType::Aranet2 as u8, 0xF2);
232        assert_eq!(DeviceType::AranetRadon as u8, 0xF3);
233        assert_eq!(DeviceType::AranetRadiation as u8, 0xF4);
234    }
235
236    #[test]
237    fn test_device_type_debug() {
238        assert_eq!(format!("{:?}", DeviceType::Aranet4), "Aranet4");
239        assert_eq!(format!("{:?}", DeviceType::Aranet2), "Aranet2");
240        assert_eq!(format!("{:?}", DeviceType::AranetRadon), "AranetRadon");
241        assert_eq!(
242            format!("{:?}", DeviceType::AranetRadiation),
243            "AranetRadiation"
244        );
245    }
246
247    #[test]
248    fn test_device_type_clone() {
249        let device_type = DeviceType::Aranet4;
250        let cloned = device_type.clone();
251        assert_eq!(device_type, cloned);
252    }
253
254    #[test]
255    fn test_device_type_try_from_u8() {
256        assert_eq!(DeviceType::try_from(0xF1), Ok(DeviceType::Aranet4));
257        assert_eq!(DeviceType::try_from(0xF2), Ok(DeviceType::Aranet2));
258        assert_eq!(DeviceType::try_from(0xF3), Ok(DeviceType::AranetRadon));
259        assert_eq!(DeviceType::try_from(0xF4), Ok(DeviceType::AranetRadiation));
260    }
261
262    #[test]
263    fn test_device_type_try_from_u8_invalid() {
264        let result = DeviceType::try_from(0x00);
265        assert!(result.is_err());
266        assert_eq!(result.unwrap_err(), ParseError::UnknownDeviceType(0x00));
267
268        let result = DeviceType::try_from(0xFF);
269        assert!(result.is_err());
270        assert_eq!(result.unwrap_err(), ParseError::UnknownDeviceType(0xFF));
271    }
272
273    #[test]
274    fn test_device_type_display() {
275        assert_eq!(format!("{}", DeviceType::Aranet4), "Aranet4");
276        assert_eq!(format!("{}", DeviceType::Aranet2), "Aranet2");
277        assert_eq!(format!("{}", DeviceType::AranetRadon), "Aranet Radon");
278        assert_eq!(
279            format!("{}", DeviceType::AranetRadiation),
280            "Aranet Radiation"
281        );
282    }
283
284    #[test]
285    fn test_device_type_hash() {
286        use std::collections::HashSet;
287        let mut set = HashSet::new();
288        set.insert(DeviceType::Aranet4);
289        set.insert(DeviceType::Aranet2);
290        set.insert(DeviceType::Aranet4); // duplicate
291        assert_eq!(set.len(), 2);
292        assert!(set.contains(&DeviceType::Aranet4));
293        assert!(set.contains(&DeviceType::Aranet2));
294    }
295
296    #[test]
297    fn test_status_display() {
298        assert_eq!(format!("{}", Status::Error), "Error");
299        assert_eq!(format!("{}", Status::Green), "Good");
300        assert_eq!(format!("{}", Status::Yellow), "Moderate");
301        assert_eq!(format!("{}", Status::Red), "High");
302    }
303
304    #[test]
305    fn test_status_hash() {
306        use std::collections::HashSet;
307        let mut set = HashSet::new();
308        set.insert(Status::Green);
309        set.insert(Status::Yellow);
310        set.insert(Status::Green); // duplicate
311        assert_eq!(set.len(), 2);
312        assert!(set.contains(&Status::Green));
313        assert!(set.contains(&Status::Yellow));
314    }
315
316    // --- DeviceInfo tests ---
317
318    #[test]
319    fn test_device_info_creation() {
320        let info = types::DeviceInfo {
321            name: "Aranet4 12345".to_string(),
322            model: "Aranet4".to_string(),
323            serial: "12345".to_string(),
324            firmware: "v1.2.0".to_string(),
325            hardware: "1.0".to_string(),
326            software: "1.2.0".to_string(),
327            manufacturer: "SAF Tehnika".to_string(),
328        };
329
330        assert_eq!(info.name, "Aranet4 12345");
331        assert_eq!(info.serial, "12345");
332        assert_eq!(info.manufacturer, "SAF Tehnika");
333    }
334
335    #[test]
336    fn test_device_info_clone() {
337        let info = types::DeviceInfo {
338            name: "Test".to_string(),
339            model: "Model".to_string(),
340            serial: "123".to_string(),
341            firmware: "1.0".to_string(),
342            hardware: "1.0".to_string(),
343            software: "1.0".to_string(),
344            manufacturer: "Mfg".to_string(),
345        };
346
347        let cloned = info.clone();
348        assert_eq!(cloned.name, info.name);
349        assert_eq!(cloned.serial, info.serial);
350    }
351
352    #[test]
353    fn test_device_info_debug() {
354        let info = types::DeviceInfo {
355            name: "Aranet4".to_string(),
356            model: "".to_string(),
357            serial: "".to_string(),
358            firmware: "".to_string(),
359            hardware: "".to_string(),
360            software: "".to_string(),
361            manufacturer: "".to_string(),
362        };
363
364        let debug_str = format!("{:?}", info);
365        assert!(debug_str.contains("Aranet4"));
366    }
367
368    #[test]
369    fn test_device_info_default() {
370        let info = types::DeviceInfo::default();
371        assert_eq!(info.name, "");
372        assert_eq!(info.model, "");
373        assert_eq!(info.serial, "");
374        assert_eq!(info.firmware, "");
375        assert_eq!(info.hardware, "");
376        assert_eq!(info.software, "");
377        assert_eq!(info.manufacturer, "");
378    }
379
380    #[test]
381    fn test_device_info_equality() {
382        let info1 = types::DeviceInfo {
383            name: "Test".to_string(),
384            model: "Model".to_string(),
385            serial: "123".to_string(),
386            firmware: "1.0".to_string(),
387            hardware: "1.0".to_string(),
388            software: "1.0".to_string(),
389            manufacturer: "Mfg".to_string(),
390        };
391        let info2 = info1.clone();
392        let info3 = types::DeviceInfo {
393            name: "Different".to_string(),
394            ..info1.clone()
395        };
396        assert_eq!(info1, info2);
397        assert_ne!(info1, info3);
398    }
399
400    // --- HistoryRecord tests ---
401
402    #[test]
403    fn test_history_record_creation() {
404        use time::OffsetDateTime;
405
406        let record = types::HistoryRecord {
407            timestamp: OffsetDateTime::UNIX_EPOCH,
408            co2: 800,
409            temperature: 22.5,
410            pressure: 1013.2,
411            humidity: 45,
412            radon: None,
413            radiation_rate: None,
414            radiation_total: None,
415        };
416
417        assert_eq!(record.co2, 800);
418        assert!((record.temperature - 22.5).abs() < 0.01);
419        assert!((record.pressure - 1013.2).abs() < 0.1);
420        assert_eq!(record.humidity, 45);
421        assert!(record.radon.is_none());
422        assert!(record.radiation_rate.is_none());
423        assert!(record.radiation_total.is_none());
424    }
425
426    #[test]
427    fn test_history_record_clone() {
428        use time::OffsetDateTime;
429
430        let record = types::HistoryRecord {
431            timestamp: OffsetDateTime::UNIX_EPOCH,
432            co2: 500,
433            temperature: 20.0,
434            pressure: 1000.0,
435            humidity: 50,
436            radon: Some(100),
437            radiation_rate: Some(0.15),
438            radiation_total: Some(1.5),
439        };
440
441        let cloned = record.clone();
442        assert_eq!(cloned.co2, record.co2);
443        assert_eq!(cloned.humidity, record.humidity);
444        assert_eq!(cloned.radon, Some(100));
445        assert_eq!(cloned.radiation_rate, Some(0.15));
446        assert_eq!(cloned.radiation_total, Some(1.5));
447    }
448
449    #[test]
450    fn test_history_record_equality() {
451        use time::OffsetDateTime;
452
453        let record1 = types::HistoryRecord {
454            timestamp: OffsetDateTime::UNIX_EPOCH,
455            co2: 800,
456            temperature: 22.5,
457            pressure: 1013.2,
458            humidity: 45,
459            radon: None,
460            radiation_rate: None,
461            radiation_total: None,
462        };
463        let record2 = record1.clone();
464        assert_eq!(record1, record2);
465    }
466
467    #[test]
468    fn test_current_reading_equality() {
469        let reading1 = CurrentReading {
470            co2: 800,
471            temperature: 22.5,
472            pressure: 1013.2,
473            humidity: 45,
474            battery: 85,
475            status: Status::Green,
476            interval: 300,
477            age: 120,
478            captured_at: None,
479            radon: None,
480            radiation_rate: None,
481            radiation_total: None,
482            radon_avg_24h: None,
483            radon_avg_7d: None,
484            radon_avg_30d: None,
485        };
486        let reading2 = reading1.clone();
487        assert_eq!(reading1, reading2);
488    }
489
490    #[test]
491    fn test_min_current_reading_bytes_const() {
492        assert_eq!(MIN_CURRENT_READING_BYTES, 13);
493        // Ensure buffer of exact size works
494        let bytes = [0u8; MIN_CURRENT_READING_BYTES];
495        assert!(CurrentReading::from_bytes(&bytes).is_ok());
496        // Ensure buffer one byte short fails
497        let short_bytes = [0u8; MIN_CURRENT_READING_BYTES - 1];
498        assert!(CurrentReading::from_bytes(&short_bytes).is_err());
499    }
500
501    // --- ParseError tests ---
502
503    #[test]
504    fn test_parse_error_display() {
505        let err = ParseError::invalid_value("test message");
506        assert_eq!(err.to_string(), "Invalid value: test message");
507    }
508
509    #[test]
510    fn test_parse_error_insufficient_bytes() {
511        let err = ParseError::InsufficientBytes {
512            expected: 13,
513            actual: 5,
514        };
515        assert_eq!(err.to_string(), "Insufficient bytes: expected 13, got 5");
516    }
517
518    #[test]
519    fn test_parse_error_unknown_device_type() {
520        let err = ParseError::UnknownDeviceType(0xAB);
521        assert_eq!(err.to_string(), "Unknown device type: 0xAB");
522    }
523
524    #[test]
525    fn test_parse_error_invalid_value() {
526        let err = ParseError::InvalidValue("bad value".to_string());
527        assert_eq!(err.to_string(), "Invalid value: bad value");
528    }
529
530    #[test]
531    fn test_parse_error_debug() {
532        let err = ParseError::invalid_value("debug test");
533        let debug_str = format!("{:?}", err);
534        assert!(debug_str.contains("InvalidValue"));
535        assert!(debug_str.contains("debug test"));
536    }
537
538    #[test]
539    fn test_parse_error_equality() {
540        let err1 = ParseError::InsufficientBytes {
541            expected: 10,
542            actual: 5,
543        };
544        let err2 = ParseError::InsufficientBytes {
545            expected: 10,
546            actual: 5,
547        };
548        let err3 = ParseError::InsufficientBytes {
549            expected: 10,
550            actual: 6,
551        };
552        assert_eq!(err1, err2);
553        assert_ne!(err1, err3);
554    }
555
556    // --- Serialization tests ---
557
558    #[test]
559    fn test_current_reading_serialization() {
560        let reading = CurrentReading {
561            co2: 800,
562            temperature: 22.5,
563            pressure: 1013.2,
564            humidity: 45,
565            battery: 85,
566            status: Status::Green,
567            interval: 300,
568            age: 120,
569            captured_at: None,
570            radon: None,
571            radiation_rate: None,
572            radiation_total: None,
573            radon_avg_24h: None,
574            radon_avg_7d: None,
575            radon_avg_30d: None,
576        };
577
578        let json = serde_json::to_string(&reading).unwrap();
579        assert!(json.contains("\"co2\":800"));
580        assert!(json.contains("\"humidity\":45"));
581    }
582
583    #[test]
584    fn test_current_reading_deserialization() {
585        let json = r#"{"co2":800,"temperature":22.5,"pressure":1013.2,"humidity":45,"battery":85,"status":"Green","interval":300,"age":120,"radon":null,"radiation_rate":null,"radiation_total":null}"#;
586
587        let reading: CurrentReading = serde_json::from_str(json).unwrap();
588        assert_eq!(reading.co2, 800);
589        assert_eq!(reading.status, Status::Green);
590    }
591
592    #[test]
593    fn test_status_serialization() {
594        assert_eq!(serde_json::to_string(&Status::Green).unwrap(), "\"Green\"");
595        assert_eq!(
596            serde_json::to_string(&Status::Yellow).unwrap(),
597            "\"Yellow\""
598        );
599        assert_eq!(serde_json::to_string(&Status::Red).unwrap(), "\"Red\"");
600        assert_eq!(serde_json::to_string(&Status::Error).unwrap(), "\"Error\"");
601    }
602
603    #[test]
604    fn test_device_type_serialization() {
605        assert_eq!(
606            serde_json::to_string(&DeviceType::Aranet4).unwrap(),
607            "\"Aranet4\""
608        );
609        assert_eq!(
610            serde_json::to_string(&DeviceType::AranetRadon).unwrap(),
611            "\"AranetRadon\""
612        );
613    }
614
615    #[test]
616    fn test_device_info_serialization_roundtrip() {
617        let info = types::DeviceInfo {
618            name: "Test Device".to_string(),
619            model: "Model X".to_string(),
620            serial: "SN12345".to_string(),
621            firmware: "1.2.3".to_string(),
622            hardware: "2.0".to_string(),
623            software: "3.0".to_string(),
624            manufacturer: "Acme Corp".to_string(),
625        };
626
627        let json = serde_json::to_string(&info).unwrap();
628        let deserialized: types::DeviceInfo = serde_json::from_str(&json).unwrap();
629
630        assert_eq!(deserialized.name, info.name);
631        assert_eq!(deserialized.serial, info.serial);
632        assert_eq!(deserialized.manufacturer, info.manufacturer);
633    }
634
635    // --- New feature tests ---
636
637    #[test]
638    fn test_status_ordering() {
639        // Status should be ordered by severity
640        assert!(Status::Error < Status::Green);
641        assert!(Status::Green < Status::Yellow);
642        assert!(Status::Yellow < Status::Red);
643
644        // Test comparison operators
645        assert!(Status::Red > Status::Yellow);
646        assert!(Status::Yellow >= Status::Yellow);
647        assert!(Status::Green <= Status::Yellow);
648    }
649
650    #[test]
651    fn test_device_type_readings_characteristic() {
652        use crate::ble;
653
654        // Aranet4 uses the original characteristic
655        assert_eq!(
656            DeviceType::Aranet4.readings_characteristic(),
657            ble::CURRENT_READINGS_DETAIL
658        );
659
660        // Other devices use the alternate characteristic
661        assert_eq!(
662            DeviceType::Aranet2.readings_characteristic(),
663            ble::CURRENT_READINGS_DETAIL_ALT
664        );
665        assert_eq!(
666            DeviceType::AranetRadon.readings_characteristic(),
667            ble::CURRENT_READINGS_DETAIL_ALT
668        );
669        assert_eq!(
670            DeviceType::AranetRadiation.readings_characteristic(),
671            ble::CURRENT_READINGS_DETAIL_ALT
672        );
673    }
674
675    #[test]
676    fn test_device_type_from_name_word_boundary() {
677        // Should match at word boundaries
678        assert_eq!(
679            DeviceType::from_name("Aranet4 12345"),
680            Some(DeviceType::Aranet4)
681        );
682        assert_eq!(
683            DeviceType::from_name("My Aranet4"),
684            Some(DeviceType::Aranet4)
685        );
686
687        // Should match case-insensitively
688        assert_eq!(DeviceType::from_name("ARANET4"), Some(DeviceType::Aranet4));
689        assert_eq!(DeviceType::from_name("aranet2"), Some(DeviceType::Aranet2));
690
691        // Should match AranetRn+ naming convention (real device name format)
692        assert_eq!(
693            DeviceType::from_name("AranetRn+ 306B8"),
694            Some(DeviceType::AranetRadon)
695        );
696        assert_eq!(
697            DeviceType::from_name("aranetrn+ 12345"),
698            Some(DeviceType::AranetRadon)
699        );
700    }
701
702    #[test]
703    fn test_byte_size_constants() {
704        assert_eq!(MIN_CURRENT_READING_BYTES, 13);
705        assert_eq!(types::MIN_ARANET2_READING_BYTES, 7);
706        assert_eq!(types::MIN_RADON_READING_BYTES, 15);
707        assert_eq!(types::MIN_RADON_GATT_READING_BYTES, 18);
708        assert_eq!(types::MIN_RADIATION_READING_BYTES, 28);
709    }
710
711    #[test]
712    fn test_from_bytes_aranet2() {
713        // 7 bytes: temp(2), humidity(1), battery(1), status(1), interval(2)
714        let data = [
715            0x90, 0x01, // temp = 400 -> 20.0°C
716            0x32, // humidity = 50
717            0x55, // battery = 85
718            0x01, // status = Green
719            0x2C, 0x01, // interval = 300
720        ];
721
722        let reading = CurrentReading::from_bytes_aranet2(&data).unwrap();
723        assert_eq!(reading.co2, 0); // Aranet2 has no CO2
724        assert!((reading.temperature - 20.0).abs() < 0.1);
725        assert_eq!(reading.humidity, 50);
726        assert_eq!(reading.battery, 85);
727        assert_eq!(reading.status, Status::Green);
728        assert_eq!(reading.interval, 300);
729        assert_eq!(reading.pressure, 0.0); // Aranet2 has no pressure
730    }
731
732    #[test]
733    fn test_from_bytes_aranet2_insufficient() {
734        let data = [0u8; 6]; // Too short
735        let result = CurrentReading::from_bytes_aranet2(&data);
736        assert!(result.is_err());
737    }
738
739    #[test]
740    fn test_from_bytes_for_device() {
741        // Test dispatch to correct parser
742        let aranet4_data = [0u8; 13];
743        let result = CurrentReading::from_bytes_for_device(&aranet4_data, DeviceType::Aranet4);
744        assert!(result.is_ok());
745
746        let aranet2_data = [0u8; 7];
747        let result = CurrentReading::from_bytes_for_device(&aranet2_data, DeviceType::Aranet2);
748        assert!(result.is_ok());
749    }
750
751    #[test]
752    fn test_builder_with_captured_at() {
753        use time::OffsetDateTime;
754
755        let now = OffsetDateTime::now_utc();
756        let reading = CurrentReading::builder()
757            .co2(800)
758            .temperature(22.5)
759            .captured_at(now)
760            .build();
761
762        assert_eq!(reading.co2, 800);
763        assert_eq!(reading.captured_at, Some(now));
764    }
765
766    #[test]
767    fn test_builder_try_build_valid() {
768        let result = CurrentReading::builder()
769            .co2(800)
770            .temperature(22.5)
771            .pressure(1013.0)
772            .humidity(50)
773            .battery(85)
774            .try_build();
775
776        assert!(result.is_ok());
777    }
778
779    #[test]
780    fn test_builder_try_build_invalid_humidity() {
781        let result = CurrentReading::builder()
782            .humidity(150) // Invalid: > 100
783            .try_build();
784
785        assert!(result.is_err());
786        let err = result.unwrap_err();
787        assert!(err.to_string().contains("humidity"));
788    }
789
790    #[test]
791    fn test_builder_try_build_invalid_battery() {
792        let result = CurrentReading::builder()
793            .battery(120) // Invalid: > 100
794            .try_build();
795
796        assert!(result.is_err());
797        let err = result.unwrap_err();
798        assert!(err.to_string().contains("battery"));
799    }
800
801    #[test]
802    fn test_builder_try_build_invalid_temperature() {
803        let result = CurrentReading::builder()
804            .temperature(-50.0) // Invalid: < -40
805            .try_build();
806
807        assert!(result.is_err());
808        let err = result.unwrap_err();
809        assert!(err.to_string().contains("temperature"));
810    }
811
812    #[test]
813    fn test_builder_try_build_invalid_pressure() {
814        let result = CurrentReading::builder()
815            .temperature(22.0) // Valid temperature
816            .pressure(500.0) // Invalid: < 800
817            .try_build();
818
819        assert!(result.is_err());
820        let err = result.unwrap_err();
821        assert!(err.to_string().contains("pressure"));
822    }
823
824    #[test]
825    fn test_with_captured_at() {
826        use time::OffsetDateTime;
827
828        let reading = CurrentReading::builder().age(60).build();
829
830        let now = OffsetDateTime::now_utc();
831        let reading_with_time = reading.with_captured_at(now);
832
833        assert!(reading_with_time.captured_at.is_some());
834        // The captured_at should be approximately now - 60 seconds
835        let captured = reading_with_time.captured_at.unwrap();
836        let expected = now - time::Duration::seconds(60);
837        assert!((captured - expected).whole_seconds().abs() < 2);
838    }
839
840    #[test]
841    fn test_parse_error_invalid_value_helper() {
842        let err = ParseError::invalid_value("test error");
843        assert_eq!(err.to_string(), "Invalid value: test error");
844    }
845}