ktype 0.3.0

A terminal-native typing test inspired by Monkeytype — fast, minimal, and offline-first.
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
174
175
176
177
178
179
180

use std::time::Duration;

use rand::SeedableRng;
use rand::rngs::SmallRng;
use tempfile::TempDir;

use crate::commands::{Command, execute_command};
use crate::model::{Config, Model, Screen, SessionState, TestMode, TestStatus, Word};
use crate::msg::Msg;
use crate::persistence;
use crate::stats::SessionResult;
use crate::update::update;

fn two_word_time_mode_model() -> Model {
    Model {
        screen: Screen::Typing,
        session: SessionState::new(vec![Word::new("hi"), Word::new("ok")]),
        config: Config::default(), // default is Time mode
        history: Vec::new(),
    }
}

fn two_word_model() -> Model {
    let mut config = Config::default();
    // Integration tests exercise the word-completion end-of-session path;
    // use Words mode so Space on the last word ends the test rather than
    // appending more words (which is the Time mode behavior).
    config.test_mode = TestMode::Words;
    Model {
        screen: Screen::Typing,
        session: SessionState::new(vec![Word::new("hi"), Word::new("ok")]),
        config,
        history: Vec::new(),
    }
}

#[test]
fn full_session_via_word_completion() {
    let mut rng = SmallRng::seed_from_u64(0);
    let mut model = two_word_model();

    // Type one char of "hi", commit with Space → advances to "ok"
    update(&mut model, Msg::Char('h'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);

    // Type one char of "ok", commit with Space → last word → Done + SaveStats
    update(&mut model, Msg::Char('o'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);

    assert_eq!(model.screen, Screen::Done);
    assert_eq!(model.history.len(), 1);
}

#[test]
fn timer_expiry_saves_stats() {
    let mut rng = SmallRng::seed_from_u64(0);
    // Timer expiry is a time-mode-only event; use Time mode for this test.
    let mut model = two_word_model();
    model.config.test_mode = TestMode::Time;

    // Start the session (Waiting → Running)
    update(&mut model, Msg::Char('h'));
    assert_eq!(model.session.status, TestStatus::Running);

    // Tick exactly at the time limit → triggers Done via timer path (not Space)
    let time_limit = model.config.time_limit;
    let cmd = update(&mut model, Msg::Tick(time_limit));
    assert!(matches!(cmd, Command::SaveStats(_)));
    execute_command(&mut model, cmd, &mut rng);

    assert_eq!(model.screen, Screen::Done);
    assert_eq!(model.session.status, TestStatus::Done);
    assert_eq!(model.history.len(), 1);
}

#[test]
fn tab_from_done_resets_session() {
    let mut rng = SmallRng::seed_from_u64(0);
    let mut model = two_word_model();

    // Drive to Done via word completion
    update(&mut model, Msg::Char('h'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);
    update(&mut model, Msg::Char('o'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);
    assert_eq!(model.screen, Screen::Done);

    // Tab from Done: restart-only, does not cycle duration
    let cmd = update(&mut model, Msg::Tab);
    assert!(matches!(cmd, Command::GenerateWords { .. }));
    execute_command(&mut model, cmd, &mut rng);

    assert_eq!(model.screen, Screen::Typing);
    assert_eq!(model.session.status, TestStatus::Waiting);
    // Tab no longer cycles duration — idx stays at 0
    assert_eq!(model.config.selected_duration_idx, 0);
}

#[test]
fn persistence_end_to_end() {
    let dir = TempDir::new().unwrap();
    let path = dir.path().join("stats.json");

    let result = SessionResult {
        timestamp: 1_234_567_890,
        duration_secs: 15,
        wpm: 42.5,
        raw_wpm: 48.0,
        accuracy: 88.5,
    };

    persistence::append_to(&path, &result).unwrap();
    let loaded = persistence::load_from(&path).unwrap();

    assert_eq!(loaded.len(), 1);
    assert_eq!(loaded[0].timestamp, result.timestamp);
    assert_eq!(loaded[0].duration_secs, result.duration_secs);
    assert!((loaded[0].wpm - result.wpm).abs() < 1e-9);
    assert!((loaded[0].raw_wpm - result.raw_wpm).abs() < 1e-9);
    assert!((loaded[0].accuracy - result.accuracy).abs() < 1e-9);
}

#[test]
fn words_mode_full_session() {
    let mut rng = SmallRng::seed_from_u64(0);
    let mut model = two_word_model(); // Words mode

    // Waiting → Running
    assert_eq!(model.session.status, TestStatus::Waiting);
    update(&mut model, Msg::Char('h'));
    assert_eq!(model.session.status, TestStatus::Running);

    // Advance past first word
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);
    assert_eq!(model.session.current_word, 1);

    // Tick in words mode must NOT expire the test
    update(&mut model, Msg::Tick(Duration::from_secs(999)));
    assert_eq!(model.session.status, TestStatus::Running);

    // Last char of last word ends test immediately, no Space needed
    update(&mut model, Msg::Char('o'));
    let cmd = update(&mut model, Msg::Char('k'));
    assert_eq!(model.session.status, TestStatus::Done);
    assert_eq!(model.screen, Screen::Done);
    assert!(matches!(cmd, Command::SaveStats(_)));
    execute_command(&mut model, cmd, &mut rng);
    assert_eq!(model.history.len(), 1);
    assert_eq!(model.config.test_mode, TestMode::Words);
}

#[test]
fn time_mode_words_never_run_out() {
    let mut rng = SmallRng::seed_from_u64(0);
    let mut model = two_word_time_mode_model();
    let initial_len = model.session.words.len();

    // Commit the first word
    update(&mut model, Msg::Char('h'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);
    // Pool grew by 1
    assert_eq!(model.session.words.len(), initial_len + 1);
    assert_eq!(model.session.current_word, 1);

    // Commit the second word via Space (it is not the last word now)
    update(&mut model, Msg::Char('o'));
    update(&mut model, Msg::Char('k'));
    let cmd = update(&mut model, Msg::Space);
    execute_command(&mut model, cmd, &mut rng);
    // Pool grew again; test is still running
    assert_eq!(model.session.words.len(), initial_len + 2);
    assert_eq!(model.session.status, TestStatus::Running);
    assert_eq!(model.screen, Screen::Typing);
}