106 lines
3.0 KiB
Rust
106 lines
3.0 KiB
Rust
extern crate ra_syntax;
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extern crate test_utils;
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extern crate walkdir;
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use std::{
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fmt::Write,
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path::{PathBuf, Component},
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};
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use test_utils::{project_dir, dir_tests, read_text, collect_tests};
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use ra_syntax::{
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SourceFile, AstNode,
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utils::{check_fuzz_invariants, dump_tree},
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};
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#[test]
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fn lexer_tests() {
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dir_tests(&test_data_dir(), &["lexer"], |text, _| {
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let tokens = ra_syntax::tokenize(text);
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dump_tokens(&tokens, text)
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})
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}
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#[test]
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fn parser_tests() {
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dir_tests(&test_data_dir(), &["parser/inline/ok", "parser/ok"], |text, path| {
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let file = SourceFile::parse(text);
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let errors = file.errors();
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assert_eq!(
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&*errors,
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&[] as &[ra_syntax::SyntaxError],
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"There should be no errors in the file {:?}",
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path.display()
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);
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dump_tree(file.syntax())
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});
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dir_tests(&test_data_dir(), &["parser/err", "parser/inline/err"], |text, path| {
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let file = SourceFile::parse(text);
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let errors = file.errors();
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assert_ne!(
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&*errors,
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&[] as &[ra_syntax::SyntaxError],
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"There should be errors in the file {:?}",
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path.display()
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);
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dump_tree(file.syntax())
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});
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}
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#[test]
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fn parser_fuzz_tests() {
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for (_, text) in collect_tests(&test_data_dir(), &["parser/fuzz-failures"]) {
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check_fuzz_invariants(&text)
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}
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}
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/// Test that Rust-analyzer can parse and validate the rust-analyser
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/// TODO: Use this as a benchmark
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#[test]
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fn self_hosting_parsing() {
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use std::ffi::OsStr;
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let dir = project_dir().join("crates");
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let mut count = 0;
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for entry in walkdir::WalkDir::new(dir)
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.into_iter()
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.filter_entry(|entry| {
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!entry.path().components().any(|component| {
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// Get all files which are not in the crates/ra_syntax/tests/data folder
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component == Component::Normal(OsStr::new("data"))
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})
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})
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.map(|e| e.unwrap())
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.filter(|entry| {
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// Get all `.rs ` files
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!entry.path().is_dir() && (entry.path().extension() == Some(OsStr::new("rs")))
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})
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{
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count += 1;
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let text = read_text(entry.path());
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let node = SourceFile::parse(&text);
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let errors = node.errors();
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assert_eq!(&*errors, &[], "There should be no errors in the file {:?}", entry);
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}
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assert!(
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count > 30,
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"self_hosting_parsing found too few files - is it running in the right directory?"
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)
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}
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fn test_data_dir() -> PathBuf {
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project_dir().join("crates/ra_syntax/tests/data")
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}
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fn dump_tokens(tokens: &[ra_syntax::Token], text: &str) -> String {
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let mut acc = String::new();
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let mut offset = 0;
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for token in tokens {
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let len: u32 = token.len.into();
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let len = len as usize;
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let token_text = &text[offset..offset + len];
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offset += len;
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write!(acc, "{:?} {} {:?}\n", token.kind, token.len, token_text).unwrap()
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}
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acc
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}
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