oak_testing/
lib.rs

1#![feature(new_range_api)]
2#![warn(missing_docs)]
3#![doc = include_str!("readme.md")]
4
5/// Testing utilities for tree building.
6pub mod building;
7/// Testing utilities for lexing.
8pub mod lexing;
9/// Testing utilities for parsing.
10pub mod parsing;
11
12use oak_core::{errors::OakError, source::SourceText};
13use std::{fs::File, path::Path};
14
15/// Reads source text from a file path.
16pub fn source_from_path(path: &Path) -> Result<SourceText, OakError> {
17    match std::fs::read_to_string(path) {
18        Ok(o) => Ok(SourceText::new(o)),
19        Err(e) => Err(OakError::io_error(e, 0)),
20    }
21}
22
23/// Reads JSON data from a file path.
24#[cfg(feature = "serde")]
25pub fn json_from_path(path: &Path) -> Result<serde_json::Value, OakError> {
26    let content = std::fs::read_to_string(path).map_err(|e| OakError::io_error(e, 0))?;
27    serde_json::from_str(&content).map_err(|e| OakError::custom_error(e.to_string()))
28}
29
30/// Opens a file and returns a file handle.
31pub fn open_file(path: &Path) -> Result<File, OakError> {
32    match File::open(path) {
33        Ok(o) => Ok(o),
34        Err(e) => Err(OakError::io_error(e, 0)),
35    }
36}
37
38/// Creates a file and its parent directories.
39pub fn create_file(path: &Path) -> Result<std::fs::File, OakError> {
40    if let Some(parent) = path.parent() {
41        std::fs::create_dir_all(parent).map_err(|e| OakError::custom_error(e.to_string()))?
42    }
43    std::fs::File::create(path).map_err(|e| OakError::custom_error(e.to_string()))
44}
oak_testing/lib.rs

oak_testing/
lib.rs
