comtrya_lib/atoms/file/
create.rs

1use crate::atoms::Outcome;
2
3use super::super::Atom;
4use super::FileAtom;
5use std::path::PathBuf;
6
7pub struct Create {
8    pub path: PathBuf,
9}
10
11impl FileAtom for Create {
12    fn get_path(&self) -> &PathBuf {
13        &self.path
14    }
15}
16
17impl std::fmt::Display for Create {
18    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
19        write!(f, "The file {} needs to be created", self.path.display(),)
20    }
21}
22
23impl Atom for Create {
24    fn plan(&self) -> anyhow::Result<Outcome> {
25        Ok(Outcome {
26            side_effects: vec![],
27            should_run: !self.path.exists(),
28        })
29    }
30
31    fn execute(&mut self) -> anyhow::Result<()> {
32        std::fs::File::create(&self.path)?;
33
34        Ok(())
35    }
36}
37
38#[cfg(test)]
39mod tests {
40    use super::*;
41    use pretty_assertions::assert_eq;
42
43    #[test]
44    fn it_can_plan() {
45        let file_create = Create {
46            path: std::path::PathBuf::from("some-random-path"),
47        };
48
49        assert_eq!(true, file_create.plan().unwrap().should_run);
50
51        let temp_file = match tempfile::NamedTempFile::new() {
52            std::result::Result::Ok(file) => file,
53            std::result::Result::Err(_) => {
54                assert_eq!(false, true);
55                return;
56            }
57        };
58
59        let file_create = Create {
60            path: temp_file.path().to_path_buf(),
61        };
62
63        assert_eq!(false, file_create.plan().unwrap().should_run);
64    }
65
66    #[test]
67    fn it_can_execute() {
68        let temp_dir = match tempfile::tempdir() {
69            std::result::Result::Ok(dir) => dir,
70            std::result::Result::Err(_) => {
71                assert_eq!(false, true);
72                return;
73            }
74        };
75
76        let mut file_create = Create {
77            path: temp_dir.path().join("create-me"),
78        };
79
80        assert_eq!(true, file_create.execute().is_ok());
81        assert_eq!(false, file_create.plan().unwrap().should_run);
82    }
83}
comtrya_lib/atoms/file/create.rs

comtrya_lib/atoms/file/
create.rs
