add_ed/ui/
mock_ui.rs

1use crate::{
2  Ed,
3  ui::UI,
4  ui::UILock,
5};
6use super::Result;
7
8/// Struct describing a print invocation.
9#[derive(Debug, PartialEq)]
10pub struct Print {
11  /// The lines printed. Each string is a separate line.
12  pub text: Vec<String>,
13  /// If true, would have printed with line numbers.
14  pub n: bool,
15  /// If true, would have printed with literal escapes.
16  pub l: bool,
17}
18
19/// A mock UI that logs all prints and panics when asked for input.
20pub struct MockUI {
21  pub prints_history: Vec<Print>,
22}
23
24impl UI for MockUI {
25  fn print_message(
26    &mut self,
27    data: &str,
28  ) -> Result<()> {
29    self.prints_history.push(
30      Print{
31        text: vec![data.to_owned()],
32        n: false,
33        l: false,
34      }
35    );
36    Ok(())
37  }
38
39  fn print_command_documentation(&mut self) -> Result<()> {
40    self.print_message(crate::messages::COMMAND_DOCUMENTATION)
41  }
42
43  fn print_selection(
44    &mut self,
45    ed: &Ed,
46    selection: (usize, usize),
47    numbered: bool,
48    literal: bool,
49  ) -> Result<()> {
50    self.prints_history.push(
51      Print{
52        text: ed.history.current().get_lines(selection)?
53          .map(|s| s.to_string())
54          .collect()
55        ,
56        n: numbered,
57        l: literal,
58      }
59    );
60    Ok(())
61  }
62
63  fn get_command(
64    &mut self,
65    _ed: &Ed,
66    _prefix: Option<char>,
67  ) -> Result<String> {
68    panic!("get_command not implemented on mock ui")
69  }
70
71  fn get_input(
72    &mut self,
73    _ed: &Ed,
74    _terminator: char,
75    #[cfg(feature = "initial_input_data")]
76    _initial_buffer: Option<Vec<String>>
77  ) -> Result<Vec<String>> {
78    panic!("get_input not implemented on mock ui")
79  }
80
81  fn lock_ui(&mut self) -> UILock<'_> {
82    UILock::new(self)
83  }
84  fn unlock_ui(&mut self){}
85}
add_ed/ui/mock_ui.rs

add_ed/ui/
mock_ui.rs
