70 lines
1.7 KiB
Rust
70 lines
1.7 KiB
Rust
extern crate file;
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#[macro_use(assert_diff)]
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extern crate difference;
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extern crate libsyntax2;
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use std::path::{PathBuf, Path};
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use std::fs::read_dir;
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use std::fmt::Write;
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use libsyntax2::{tokenize, parse, Token, Node, File, FileBuilder};
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#[test]
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fn parser_tests() {
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for test_case in parser_test_cases() {
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parser_test_case(&test_case);
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}
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}
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fn parser_test_dir() -> PathBuf {
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let dir = env!("CARGO_MANIFEST_DIR");
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PathBuf::from(dir).join("tests/data/parser")
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}
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fn parser_test_cases() -> Vec<PathBuf> {
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let mut acc = Vec::new();
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let dir = parser_test_dir();
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for file in read_dir(&dir).unwrap() {
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let file = file.unwrap();
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let path = file.path();
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if path.extension().unwrap_or_default() == "rs" {
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acc.push(path);
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}
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}
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acc.sort();
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acc
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}
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fn parser_test_case(path: &Path) {
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let actual = {
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let text = file::get_text(path).unwrap();
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let tokens = tokenize(&text);
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let file = parse(text, &tokens);
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dump_tree(&file)
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};
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let expected = file::get_text(&path.with_extension("txt")).unwrap();
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let expected = expected.as_str();
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let actual = actual.as_str();
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if expected == actual {
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return
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}
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if expected.trim() == actual.trim() {
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panic!("Whitespace difference!")
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}
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assert_diff!(expected, actual, "\n", 0)
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}
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fn dump_tree(file: &File) -> String {
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let mut result = String::new();
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go(file.root(), &mut result, 0);
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return result;
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fn go(node: Node, buff: &mut String, level: usize) {
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buff.push_str(&String::from(" ").repeat(level));
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write!(buff, "{:?}\n", node)
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.unwrap();
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for child in node.children() {
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go(child, buff, level + 1)
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}
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}
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}
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