revue 2.71.1

A Vue-style TUI framework for Rust with CSS styling
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191

//! Tests for rich_text_editor cursor module

use revue::widget::form::rich_text_editor::RichTextEditor;

    // =========================================================================
    // Cursor movement tests - single block
    // =========================================================================

    #[test]
    fn test_move_left_at_start() {
        let mut editor = RichTextEditor::new();
        editor.move_left();
        // Should stay at (0, 0)
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_right() {
        let mut editor = RichTextEditor::new().content("hello");
        editor.move_right();
        // Should be at (0, 1)
        assert_eq!(editor.cursor_position(), (0, 1));
    }

    #[test]
    fn test_move_right_at_end() {
        let mut editor = RichTextEditor::new().content("hi");
        editor.move_right();
        editor.move_right();
        // Should be at (0, 2) - at end of block
        assert_eq!(editor.cursor_position(), (0, 2));
    }

    #[test]
    fn test_move_home() {
        let mut editor = RichTextEditor::new().content("hello");
        editor.move_right();
        editor.move_right();
        editor.move_home();
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_end() {
        let mut editor = RichTextEditor::new().content("test");
        editor.move_end();
        assert_eq!(editor.cursor_position(), (0, 4));
    }

    // =========================================================================
    // Cursor movement tests - multiple blocks
    // =========================================================================

    #[test]
    fn test_move_up_from_second_block() {
        let mut editor = RichTextEditor::new().content("first\nsecond");
        editor.move_down();
        assert_eq!(editor.cursor_position(), (1, 0));
        editor.move_up();
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_down() {
        let mut editor = RichTextEditor::new().content("first\nsecond");
        editor.move_down();
        assert_eq!(editor.cursor_position(), (1, 0));
    }

    #[test]
    fn test_move_up_at_top() {
        let mut editor = RichTextEditor::new().content("first\nsecond");
        editor.move_up();
        // Should stay at (0, 0)
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_down_at_bottom() {
        let mut editor = RichTextEditor::new().content("first\nsecond");
        editor.move_down();
        editor.move_down();
        // Should stay at (1, 0)
        assert_eq!(editor.cursor_position(), (1, 0));
    }

    #[test]
    fn test_move_right_across_blocks() {
        let mut editor = RichTextEditor::new().content("ab\ncd");
        editor.move_right();
        editor.move_right();
        // Should be at end of first block
        assert!(editor.cursor_position().1 >= 1);
    }

    #[test]
    fn test_move_left_across_blocks() {
        let mut editor = RichTextEditor::new().content("ab\ncd");
        editor.move_down();
        editor.move_left();
        // Should move to previous block end (column is usize, always >= 0)
        let pos = editor.cursor_position();
        assert!(pos.0 < 10); // Just verify it's in reasonable range
    }

    // =========================================================================
    // Document navigation tests
    // =========================================================================

    #[test]
    fn test_move_document_start() {
        let mut editor = RichTextEditor::new().content("line 1\nline 2\nline 3");
        editor.move_down();
        editor.move_down();
        editor.move_document_start();
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_document_end() {
        let mut editor = RichTextEditor::new().content("line 1\nline 2\nline 3");
        editor.move_document_end();
        assert_eq!(editor.cursor_position().0, 2);
        // Column is usize, always >= 0, just verify it's reasonable
        assert!(editor.cursor_position().1 < 100);
    }

    #[test]
    fn test_move_document_end_empty() {
        let mut editor = RichTextEditor::new();
        editor.move_document_end();
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    // =========================================================================
    // Complex navigation tests
    // =========================================================================

    #[test]
    fn test_cursor_movement_sequence() {
        let mut editor = RichTextEditor::new().content("abc\ndef");
        // Move right 3 times
        editor.move_right();
        editor.move_right();
        editor.move_right();
        assert!(editor.cursor_position().1 >= 2);
        // Move down
        editor.move_down();
        assert_eq!(editor.cursor_position().0, 1);
        // Move home
        editor.move_home();
        assert_eq!(editor.cursor_position(), (1, 0));
    }

    #[test]
    fn test_cursor_navigation_does_not_panic() {
        let mut editor = RichTextEditor::new().content("line 1\nline 2\nline 3");
        // Just verify all navigation works without panic
        editor.move_left();
        editor.move_right();
        editor.move_up();
        editor.move_down();
        editor.move_home();
        editor.move_end();
        editor.move_document_start();
        editor.move_document_end();
    }

    // =========================================================================
    // Edge cases
    // =========================================================================

    #[test]
    fn test_move_empty_editor() {
        let mut editor = RichTextEditor::new();
        editor.move_left();
        editor.move_right();
        editor.move_up();
        editor.move_down();
        // Should all work without panic
        assert_eq!(editor.cursor_position(), (0, 0));
    }

    #[test]
    fn test_move_long_line() {
        let mut editor = RichTextEditor::new().content("a".repeat(100));
        editor.move_end();
        assert_eq!(editor.cursor_position().1, 100);
        editor.move_home();
        assert_eq!(editor.cursor_position(), (0, 0));
    }