bitpill 0.3.3

A personal medication management TUI application built in Rust.
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

use std::convert::TryFrom;
use std::sync::Arc;

use uuid::Uuid;

use crate::application::{
    dtos::{requests::UpdateMedicationRequest, responses::UpdateMedicationResponse},
    errors::ApplicationError,
    ports::{
        inbound::update_medication_port::UpdateMedicationPort,
        outbound::medication_repository_port::MedicationRepository,
    },
};
use crate::domain::entities::medication::Medication;
use crate::domain::value_objects::medication_id::MedicationId;

pub struct UpdateMedicationService {
    repository: Arc<dyn MedicationRepository>,
}

impl UpdateMedicationService {
    pub fn new(repository: Arc<dyn MedicationRepository>) -> Self {
        Self { repository }
    }
}

impl UpdateMedicationPort for UpdateMedicationService {
    fn execute(
        &self,
        request: UpdateMedicationRequest,
    ) -> Result<UpdateMedicationResponse, ApplicationError> {
        let id = Uuid::parse_str(&request.id)
            .map_err(|_| ApplicationError::InvalidInput("invalid id".into()))?;
        let id_str = request.id.clone();
        let med_id = MedicationId::from(id);

        let medication = Medication::try_from((request, med_id))?;

        self.repository.save(&medication)?;

        Ok(UpdateMedicationResponse { id: id_str })
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::application::ports::fakes::FakeMedicationRepository;

    fn make_service(repo: Arc<FakeMedicationRepository>) -> UpdateMedicationService {
        UpdateMedicationService::new(repo)
    }

    fn valid_id() -> String {
        Uuid::now_v7().to_string()
    }

    fn valid_request(id: &str) -> UpdateMedicationRequest {
        UpdateMedicationRequest::new(id, "Ibuprofen", 200, vec![(8, 0)], "OnceDaily")
    }

    #[test]
    fn execute_with_valid_request_returns_same_id() {
        let repo = Arc::new(FakeMedicationRepository::new());
        let service = make_service(repo);
        let id = valid_id();

        let result = service.execute(valid_request(&id));

        assert!(result.is_ok());
        assert_eq!(result.unwrap().id, id);
    }

    #[test]
    fn execute_with_valid_request_saves_to_repository() {
        let repo = Arc::new(FakeMedicationRepository::new());
        let service = make_service(repo.clone());

        service.execute(valid_request(&valid_id())).unwrap();

        assert_eq!(repo.saved_count(), 1);
    }

    #[test]
    fn execute_with_invalid_uuid_returns_invalid_input_error() {
        let repo = Arc::new(FakeMedicationRepository::new());
        let service = make_service(repo);
        let request =
            UpdateMedicationRequest::new("not-a-uuid", "Ibuprofen", 200, vec![(8, 0)], "OnceDaily");

        let result = service.execute(request);

        assert!(matches!(result, Err(ApplicationError::InvalidInput(_))));
    }

    #[test]
    fn execute_with_empty_name_returns_domain_error() {
        let repo = Arc::new(FakeMedicationRepository::new());
        let service = make_service(repo);
        let request = UpdateMedicationRequest::new(valid_id(), "", 200, vec![(8, 0)], "OnceDaily");

        let result = service.execute(request);

        assert!(matches!(result, Err(ApplicationError::Domain(_))));
    }

    #[test]
    fn execute_with_zero_dosage_returns_domain_error() {
        let repo = Arc::new(FakeMedicationRepository::new());
        let service = make_service(repo);
        let request =
            UpdateMedicationRequest::new(valid_id(), "Ibuprofen", 0, vec![(8, 0)], "OnceDaily");

        let result = service.execute(request);

        assert!(matches!(result, Err(ApplicationError::Domain(_))));
    }

    #[test]
    fn execute_when_repository_fails_returns_storage_error() {
        let repo = Arc::new(FakeMedicationRepository::failing());
        let service = make_service(repo);

        let result = service.execute(valid_request(&valid_id()));

        assert!(matches!(result, Err(ApplicationError::Storage(_))));
    }
}