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-rw-r--r--crates/ra_syntax/src/tests.rs101
1 files changed, 101 insertions, 0 deletions
diff --git a/crates/ra_syntax/src/tests.rs b/crates/ra_syntax/src/tests.rs
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index 000000000..fa5d2d5d8
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+++ b/crates/ra_syntax/src/tests.rs
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1use std::{
2 fmt::Write,
3 path::{Component, PathBuf},
4};
5
6use test_utils::{collect_tests, dir_tests, project_dir, read_text};
7
8use crate::{fuzz, SourceFile};
9
10#[test]
11fn lexer_tests() {
12 dir_tests(&test_data_dir(), &["lexer"], |text, _| {
13 let tokens = crate::tokenize(text);
14 dump_tokens(&tokens, text)
15 })
16}
17
18#[test]
19fn parser_tests() {
20 dir_tests(&test_data_dir(), &["parser/inline/ok", "parser/ok"], |text, path| {
21 let parse = SourceFile::parse(text);
22 let errors = parse.errors();
23 assert_eq!(
24 errors,
25 &[] as &[crate::SyntaxError],
26 "There should be no errors in the file {:?}",
27 path.display(),
28 );
29 parse.debug_dump()
30 });
31 dir_tests(&test_data_dir(), &["parser/err", "parser/inline/err"], |text, path| {
32 let parse = SourceFile::parse(text);
33 let errors = parse.errors();
34 assert!(!errors.is_empty(), "There should be errors in the file {:?}", path.display());
35 parse.debug_dump()
36 });
37}
38
39#[test]
40fn parser_fuzz_tests() {
41 for (_, text) in collect_tests(&test_data_dir(), &["parser/fuzz-failures"]) {
42 fuzz::check_parser(&text)
43 }
44}
45
46#[test]
47fn reparse_fuzz_tests() {
48 for (_, text) in collect_tests(&test_data_dir(), &["reparse/fuzz-failures"]) {
49 let check = fuzz::CheckReparse::from_data(text.as_bytes()).unwrap();
50 println!("{:?}", check);
51 check.run();
52 }
53}
54
55/// Test that Rust-analyzer can parse and validate the rust-analyzer
56/// FIXME: Use this as a benchmark
57#[test]
58fn self_hosting_parsing() {
59 use std::ffi::OsStr;
60 let dir = project_dir().join("crates");
61 let mut count = 0;
62 for entry in walkdir::WalkDir::new(dir)
63 .into_iter()
64 .filter_entry(|entry| {
65 !entry.path().components().any(|component| {
66 // Get all files which are not in the crates/ra_syntax/tests/data folder
67 component == Component::Normal(OsStr::new("test_data"))
68 })
69 })
70 .map(|e| e.unwrap())
71 .filter(|entry| {
72 // Get all `.rs ` files
73 !entry.path().is_dir() && (entry.path().extension() == Some(OsStr::new("rs")))
74 })
75 {
76 count += 1;
77 let text = read_text(entry.path());
78 SourceFile::parse(&text).ok().expect("There should be no errors in the file");
79 }
80 assert!(
81 count > 30,
82 "self_hosting_parsing found too few files - is it running in the right directory?"
83 )
84}
85
86fn test_data_dir() -> PathBuf {
87 project_dir().join("crates/ra_syntax/test_data")
88}
89
90fn dump_tokens(tokens: &[crate::Token], text: &str) -> String {
91 let mut acc = String::new();
92 let mut offset = 0;
93 for token in tokens {
94 let len: u32 = token.len.into();
95 let len = len as usize;
96 let token_text = &text[offset..offset + len];
97 offset += len;
98 write!(acc, "{:?} {} {:?}\n", token.kind, token.len, token_text).unwrap()
99 }
100 acc
101}