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|
use std::{
fmt::Write,
path::{Component, Path, PathBuf},
};
use test_utils::{collect_rust_files, dir_tests, project_dir, read_text};
use crate::{fuzz, tokenize, SourceFile, SyntaxError, TextRange, TextSize, Token};
#[test]
fn lexer_tests() {
// FIXME:
// * Add tests for unicode escapes in byte-character and [raw]-byte-string literals
// * Add tests for unescape errors
dir_tests(&test_data_dir(), &["lexer/ok"], "txt", |text, path| {
let (tokens, errors) = tokenize(text);
assert_errors_are_absent(&errors, path);
dump_tokens_and_errors(&tokens, &errors, text)
});
dir_tests(&test_data_dir(), &["lexer/err"], "txt", |text, path| {
let (tokens, errors) = tokenize(text);
assert_errors_are_present(&errors, path);
dump_tokens_and_errors(&tokens, &errors, text)
});
}
#[test]
fn parse_smoke_test() {
let code = r##"
fn main() {
println!("Hello, world!")
}
"##;
let parse = SourceFile::parse(code);
// eprintln!("{:#?}", parse.syntax_node());
assert!(parse.ok().is_ok());
}
#[test]
fn parser_tests() {
dir_tests(&test_data_dir(), &["parser/inline/ok", "parser/ok"], "rast", |text, path| {
let parse = SourceFile::parse(text);
let errors = parse.errors();
assert_errors_are_absent(&errors, path);
parse.debug_dump()
});
dir_tests(&test_data_dir(), &["parser/err", "parser/inline/err"], "rast", |text, path| {
let parse = SourceFile::parse(text);
let errors = parse.errors();
assert_errors_are_present(&errors, path);
parse.debug_dump()
});
}
#[test]
fn expr_parser_tests() {
fragment_parser_dir_test(
&["parser/fragments/expr/ok"],
&["parser/fragments/expr/err"],
crate::ast::Expr::parse,
);
}
#[test]
fn path_parser_tests() {
fragment_parser_dir_test(
&["parser/fragments/path/ok"],
&["parser/fragments/path/err"],
crate::ast::Path::parse,
);
}
#[test]
fn pattern_parser_tests() {
fragment_parser_dir_test(
&["parser/fragments/pattern/ok"],
&["parser/fragments/pattern/err"],
crate::ast::Pat::parse,
);
}
#[test]
fn item_parser_tests() {
fragment_parser_dir_test(
&["parser/fragments/item/ok"],
&["parser/fragments/item/err"],
crate::ast::ModuleItem::parse,
);
}
#[test]
fn type_parser_tests() {
fragment_parser_dir_test(
&["parser/fragments/type/ok"],
&["parser/fragments/type/err"],
crate::ast::TypeRef::parse,
);
}
#[test]
fn parser_fuzz_tests() {
for (_, text) in collect_rust_files(&test_data_dir(), &["parser/fuzz-failures"]) {
fuzz::check_parser(&text)
}
}
#[test]
fn reparse_fuzz_tests() {
for (_, text) in collect_rust_files(&test_data_dir(), &["reparse/fuzz-failures"]) {
let check = fuzz::CheckReparse::from_data(text.as_bytes()).unwrap();
println!("{:?}", check);
check.run();
}
}
/// Test that Rust-analyzer can parse and validate the rust-analyzer
/// FIXME: Use this as a benchmark
#[test]
fn self_hosting_parsing() {
use std::ffi::OsStr;
let dir = project_dir().join("crates");
let mut count = 0;
for entry in walkdir::WalkDir::new(dir)
.into_iter()
.filter_entry(|entry| {
!entry.path().components().any(|component| {
// Get all files which are not in the crates/ra_syntax/test_data folder
component == Component::Normal(OsStr::new("test_data"))
})
})
.map(|e| e.unwrap())
.filter(|entry| {
// Get all `.rs ` files
!entry.path().is_dir() && (entry.path().extension() == Some(OsStr::new("rs")))
})
{
count += 1;
let text = read_text(entry.path());
if let Err(errors) = SourceFile::parse(&text).ok() {
panic!("Parsing errors:\n{:?}\n{}\n", errors, entry.path().display());
}
}
assert!(
count > 30,
"self_hosting_parsing found too few files - is it running in the right directory?"
)
}
fn test_data_dir() -> PathBuf {
project_dir().join("crates/ra_syntax/test_data")
}
fn assert_errors_are_present(errors: &[SyntaxError], path: &Path) {
assert!(!errors.is_empty(), "There should be errors in the file {:?}", path.display());
}
fn assert_errors_are_absent(errors: &[SyntaxError], path: &Path) {
assert_eq!(
errors,
&[] as &[SyntaxError],
"There should be no errors in the file {:?}",
path.display(),
);
}
fn dump_tokens_and_errors(tokens: &[Token], errors: &[SyntaxError], text: &str) -> String {
let mut acc = String::new();
let mut offset: TextSize = 0.into();
for token in tokens {
let token_len = token.len;
let token_text = &text[TextRange::at(offset, token.len)];
offset += token.len;
writeln!(acc, "{:?} {:?} {:?}", token.kind, token_len, token_text).unwrap();
}
for err in errors {
writeln!(acc, "> error{:?} token({:?}) msg({})", err.range(), &text[err.range()], err)
.unwrap();
}
acc
}
fn fragment_parser_dir_test<T, F>(ok_paths: &[&str], err_paths: &[&str], f: F)
where
T: crate::AstNode,
F: Fn(&str) -> Result<T, ()>,
{
dir_tests(&test_data_dir(), ok_paths, "rast", |text, path| {
if let Ok(node) = f(text) {
format!("{:#?}", crate::ast::AstNode::syntax(&node))
} else {
panic!("Failed to parse '{:?}'", path);
}
});
dir_tests(&test_data_dir(), err_paths, "rast", |text, path| {
if let Ok(_) = f(text) {
panic!("'{:?}' successfully parsed when it should have errored", path);
} else {
"ERROR\n".to_owned()
}
});
}
|
