tauri_api/
file.rs

1mod extract;
2mod file_move;
3
4use std::fs;
5use std::path::Path;
6
7use crate::Error;
8
9pub use extract::*;
10pub use file_move::*;
11
12/// Reads a string file.
13pub fn read_string<P: AsRef<Path>>(file: P) -> crate::Result<String> {
14  fs::read_to_string(file).map_err(|err| Error::File(format!("Read_string failed: {}", err)).into())
15}
16
17/// Reads a binary file.
18pub fn read_binary<P: AsRef<Path>>(file: P) -> crate::Result<Vec<u8>> {
19  fs::read(file).map_err(|err| Error::File(format!("Read_binary failed: {}", err)).into())
20}
21
22#[cfg(test)]
23mod test {
24  use super::*;
25  use crate::Error;
26
27  #[test]
28  fn check_read_string() {
29    let file = String::from("test/test.txt");
30
31    let res = read_string(file);
32
33    assert!(res.is_ok());
34
35    if let Ok(s) = res {
36      assert_eq!(s, "This is a test doc!".to_string());
37    }
38  }
39
40  #[test]
41  fn check_read_string_fail() {
42    let file = String::from("test/");
43
44    let res = read_string(file);
45
46    assert!(res.is_err());
47
48    if let Some(Error::File(e)) = res.unwrap_err().downcast_ref::<Error>() {
49      #[cfg(windows)]
50      assert_eq!(
51        *e,
52        "Read_string failed: Access is denied. (os error 5)".to_string()
53      );
54      #[cfg(not(windows))]
55      assert_eq!(
56        *e,
57        "Read_string failed: Is a directory (os error 21)".to_string()
58      );
59    }
60  }
61
62  #[test]
63  fn check_read_binary() {
64    let file = String::from("test/test_binary");
65
66    #[cfg(windows)]
67    let expected_vec = vec![
68      35, 33, 47, 98, 105, 110, 47, 98, 97, 115, 104, 13, 10, 13, 10, 101, 99, 104, 111, 32, 34,
69      72, 101, 108, 108, 111, 32, 116, 104, 101, 114, 101, 34,
70    ];
71    #[cfg(not(windows))]
72    let expected_vec = vec![
73      35, 33, 47, 98, 105, 110, 47, 98, 97, 115, 104, 10, 10, 101, 99, 104, 111, 32, 34, 72, 101,
74      108, 108, 111, 32, 116, 104, 101, 114, 101, 34,
75    ];
76
77    let res = read_binary(file);
78
79    assert!(res.is_ok());
80
81    if let Ok(vec) = res {
82      assert_eq!(vec, expected_vec);
83    }
84  }
85
86  #[test]
87  fn check_read_binary_fail() {
88    let file = String::from("test/");
89
90    let res = read_binary(file);
91
92    assert!(res.is_err());
93
94    if let Some(Error::File(e)) = res.unwrap_err().downcast_ref::<Error>() {
95      #[cfg(windows)]
96      assert_eq!(
97        *e,
98        "Read_binary failed: Access is denied. (os error 5)".to_string()
99      );
100      #[cfg(not(windows))]
101      assert_eq!(
102        *e,
103        "Read_binary failed: Is a directory (os error 21)".to_string()
104      );
105    }
106  }
107}
tauri_api/file.rs

tauri_api/
file.rs
