fm84 0.33.2

A synthwave dual-pane TUI file manager
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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223

//! Selecting, by hand, by pattern and by comparing, and sizing directories.

use super::*;

/// Space sizes a directory on a thread, so the panel goes on answering
/// while it counts, and the size lands once the walk is done.
#[test]
fn space_sizes_a_directory_off_the_ui_thread() {
    let dir = std::env::temp_dir().join(format!("fm84-sizing-{}", std::process::id()));
    let _ = std::fs::remove_dir_all(&dir);
    std::fs::create_dir_all(dir.join("sub")).unwrap();
    std::fs::write(dir.join("sub").join("data.bin"), vec![0u8; 4096]).unwrap();

    let mut app_state = AppState::new();
    app_state.options = Options::default();
    app_state.open_dir(true, dir.clone(), Some("sub".as_ref()));
    app_state.toggle_selection();
    assert_eq!(app_state.dir_sizing.len(), 1);

    let started = std::time::Instant::now();
    while !app_state.dir_sizing.is_empty() {
        assert!(started.elapsed() < std::time::Duration::from_secs(10), "sizing never finished");
        std::thread::sleep(std::time::Duration::from_millis(5));
        app_state.poll_dir_sizes();
    }
    assert_eq!(app_state.dir_sizes.get(&dir.join("sub")), Some(&4096));

    // Esc stops one under way, and nothing it finds is kept.
    app_state.dir_sizes.clear();
    app_state.start_dir_size(dir.join("sub"));
    app_state.cancel_dir_sizes();
    assert!(app_state.dir_sizing.is_empty());
    app_state.poll_dir_sizes();
    assert!(app_state.dir_sizes.is_empty());

    std::fs::remove_dir_all(&dir).unwrap();
}

/// A link to a directory is selected by Space but not sized: one to / or to
/// a slow mount would walk all of it, as Alt+Shift+Enter already knew.
#[cfg(unix)]
#[test]
fn space_selects_a_link_to_a_directory_without_sizing_it() {
    let dir = std::env::temp_dir().join(format!("fm84-sizing-link-{}", std::process::id()));
    let _ = std::fs::remove_dir_all(&dir);
    std::fs::create_dir_all(dir.join("sub")).unwrap();
    std::os::unix::fs::symlink(dir.join("sub"), dir.join("link")).unwrap();

    let mut app_state = AppState::new();
    app_state.options = Options::default();
    app_state.open_dir(true, dir.clone(), Some("link".as_ref()));
    app_state.toggle_selection();
    assert!(app_state.selected_left.contains(std::ffi::OsStr::new("link")));
    assert!(app_state.dir_sizing.is_empty());

    std::fs::remove_dir_all(&dir).unwrap();
}

/// Shift+F2: each side selects what only it has and the newer of what
/// both have; the size settles it only when the times agree.
#[test]
fn compare_selects_what_differs() {
    let at = |seconds: u64| Some(std::time::SystemTime::UNIX_EPOCH + std::time::Duration::from_secs(seconds));
    let file = |name: &str, seconds: u64, size: u64| Item {
        modified_at: at(seconds),
        size_bytes: size,
        ..row(name)
    };
    let dir = |name: &str| Item { is_dir: true, ..row(name) };
    let left = vec![
        row(".."),
        file("same.txt", 1000, 5),
        file("newer-left.txt", 2000, 5),
        file("newer-right.txt", 1000, 5),
        file("resized.txt", 1000, 5),
        file("fat-rounded.txt", 1001, 5),
        file("only-left.txt", 1000, 5),
        dir("both-dirs"),
        dir("only-left-dir"),
        file("file-or-dir", 1000, 5),
        row("no-time"),
    ];
    let right = vec![
        row(".."),
        file("same.txt", 1000, 5),
        file("newer-left.txt", 1000, 5),
        file("newer-right.txt", 2000, 5),
        file("resized.txt", 1000, 6),
        file("fat-rounded.txt", 1000, 5),
        file("only-right.txt", 1000, 5),
        dir("both-dirs"),
        dir("file-or-dir"),
        Item { size_bytes: 1, ..row("no-time") },
    ];
    let sorted = |names: HashSet<std::ffi::OsString>| {
        let mut names: Vec<String> = names.into_iter().map(|name| name.to_string_lossy().into_owned()).collect();
        names.sort();
        names
    };
    let (on_left, on_right) = crate::app::compare::differences(&left, &right);
    assert_eq!(sorted(on_left), ["file-or-dir", "newer-left.txt", "no-time", "only-left-dir", "only-left.txt", "resized.txt"]);
    assert_eq!(sorted(on_right), ["file-or-dir", "newer-right.txt", "no-time", "only-right.txt", "resized.txt"]);

    // Through the panels: what was selected goes, and the count is said.
    let mut app_state = AppState::new();
    app_state.dir_left = "/left".into();
    app_state.dir_right = "/right".into();
    app_state.children_left = left;
    app_state.children_right = right;
    app_state.selected_left.insert("same.txt".into());
    app_state.compare_dirs();
    assert!(!app_state.selected_left.contains(std::ffi::OsStr::new("same.txt")));
    assert_eq!((app_state.selected_left.len(), app_state.selected_right.len()), (6, 5));
    assert_eq!(app_state.find_note.as_deref(), Some("Differ: 6 on the left, 5 on the right"));

    app_state.children_right = app_state.children_left.clone();
    app_state.compare_dirs();
    assert!(app_state.selected_left.is_empty() && app_state.selected_right.is_empty());
    assert_eq!(app_state.find_note.as_deref(), Some("The directories hold the same files"));

    app_state.dir_right = "/left".into();
    app_state.compare_dirs();
    assert_eq!(app_state.find_note.as_deref(), Some("Both panels show the same directory"));
}

#[test]
fn plus_minus_and_star_select_by_pattern() {
    let mut app_state = AppState::new();
    app_state.is_left_active = true;
    let directory = Item { is_dir: true, ..row("photos") };
    app_state.children_left = vec![row(".."), directory, row("a.jpg"), row("B.JPG"), row("c.png"), row("notes.txt")];
    let selected = |app_state: &AppState| {
        let mut names: Vec<String> = app_state.selected_left.iter().map(|name| name.to_string_lossy().into_owned()).collect();
        names.sort();
        names
    };

    // Through the prompt, as + then typing then Enter does.
    app_state.open_select_prompt(true);
    app_state.dialog_input().unwrap().set("*.jpg;*.png".to_string());
    app_state.confirm_prompt();
    assert_eq!(selected(&app_state), ["B.JPG", "a.jpg", "c.png"]);
    assert_eq!(app_state.select_pattern, "*.jpg;*.png");

    app_state.open_select_prompt(false);
    app_state.dialog_input().unwrap().set("?.png".to_string());
    app_state.confirm_prompt();
    assert_eq!(selected(&app_state), ["B.JPG", "a.jpg"]);

    // Files are inverted; the directory and .. are left alone.
    app_state.invert_selection(false);
    assert_eq!(selected(&app_state), ["c.png", "notes.txt"]);
    // Unless directories are asked for too.
    app_state.invert_selection(true);
    assert_eq!(selected(&app_state), ["B.JPG", "a.jpg", "photos"]);
    app_state.invert_selection(true);
    assert_eq!(selected(&app_state), ["c.png", "notes.txt"]);

    // * takes files only, */ the directories.
    app_state.select_by(&crate::glob::Glob::new("*").unwrap(), true);
    assert_eq!(selected(&app_state), ["B.JPG", "a.jpg", "c.png", "notes.txt"]);
    app_state.select_by(&crate::glob::Glob::new("*/").unwrap(), true);
    assert_eq!(selected(&app_state), ["B.JPG", "a.jpg", "c.png", "notes.txt", "photos"]);

    // An empty pattern does nothing and is not kept.
    app_state.open_select_prompt(false);
    app_state.dialog_input().unwrap().set(String::new());
    app_state.confirm_prompt();
    assert_eq!(selected(&app_state).len(), 5);
    assert_eq!(app_state.select_pattern, "?.png");
}

#[test]
fn a_selection_outlives_a_re_sort_but_not_its_file() {
    let mut selected: HashSet<std::ffi::OsString> = ["one.txt", "two.txt"].iter().map(|name| name.into()).collect();

    // Re-sorted, renumbered: both files are still there, so both stay
    // selected. This is what keying by name rather than row is for.
    prune_selection(&mut selected, &[row("zzz.txt"), row("two.txt"), row("one.txt")]);
    assert_eq!(selected.len(), 2);

    // one.txt is gone, so its selection goes with it.
    prune_selection(&mut selected, &[row("renamed.txt"), row("two.txt")]);
    assert_eq!(selected.iter().collect::<Vec<_>>(), ["two.txt"]);

    // And it does not come back when something else takes the name, which
    // would otherwise put a file the user never picked into the next delete.
    prune_selection(&mut selected, &[row("one.txt"), row("two.txt")]);
    assert_eq!(selected.iter().collect::<Vec<_>>(), ["two.txt"]);

    // An empty directory clears the lot.
    prune_selection(&mut selected, &[]);
    assert!(selected.is_empty());
}

/// Two names that are not valid UTF-8 can read the same once made
/// printable. Selecting one must not select the other, or the next delete
/// takes a file nobody picked.
#[cfg(unix)]
#[test]
fn names_that_read_alike_are_selected_apart() {
    use std::os::unix::ffi::OsStrExt;

    let dir = std::env::temp_dir().join(format!("fm84-alike-{}", std::process::id()));
    std::fs::create_dir_all(&dir).unwrap();
    for raw in [&b"a\xfe"[..], &b"a\xff"[..]] {
        std::fs::write(dir.join(std::ffi::OsStr::from_bytes(raw)), "").unwrap();
    }

    let mut app_state = AppState::new();
    app_state.options = Options::default();
    app_state.open_dir(true, dir.clone(), None);
    let rows: Vec<Item> = app_state.children_left.iter().filter(|item| item.name != "..").cloned().collect();
    assert_eq!(rows.len(), 2);
    assert_eq!(rows[0].name_full, rows[1].name_full);

    let index = app_state.children_left.iter().position(|row| row.name_os == rows[0].name_os).unwrap();
    app_state.state_left.select(Some(index));
    app_state.toggle_selection_no_size();
    assert_eq!(app_state.selected_left.iter().collect::<Vec<_>>(), [&rows[0].name_os]);

    std::fs::remove_dir_all(&dir).unwrap();
}