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Refactor parser fuzz testing

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This commit is contained in:
pcpthm 2019-03-22 02:05:12 +09:00
parent 51323a852a
commit e734190c24
5 changed files with 23 additions and 16 deletions
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8
crates/ra_syntax/fuzz/Cargo.toml
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@ -4,14 +4,14 @@ name = "ra_syntax-fuzz"
version = "0.0.1" version = "0.0.1"
authors = ["rust-analyzer developers"] authors = ["rust-analyzer developers"]
publish = false publish = false
edition = "2018"
[package.metadata] [package.metadata]
cargo-fuzz = true cargo-fuzz = true
[dependencies.ra_syntax] [dependencies]
path = ".." ra_syntax = { path = ".." }
[dependencies.libfuzzer-sys] libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer-sys.git" }
git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
# Prevent this from interfering with workspaces # Prevent this from interfering with workspaces
[workspace] [workspace]

6
crates/ra_syntax/fuzz/fuzz_targets/parser.rs
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@ -1,9 +1,9 @@
#![no_main] #![no_main]
#[macro_use] extern crate libfuzzer_sys; use libfuzzer_sys::fuzz_target;
extern crate ra_syntax; use ra_syntax::fuzz::check_parser;
fuzz_target!(|data: &[u8]| { fuzz_target!(|data: &[u8]| {
if let Ok(text) = std::str::from_utf8(data) { if let Ok(text) = std::str::from_utf8(data) {
ra_syntax::check_fuzz_invariants(text) check_parser(text)
} }
}); });

12
crates/ra_syntax/src/fuzz.rs Normal file
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@ -0,0 +1,12 @@
use crate::{SourceFile, validation, AstNode};
fn check_file_invariants(file: &SourceFile) {
let root = file.syntax();
validation::validate_block_structure(root);
let _ = file.errors();
}
pub fn check_parser(text: &str) {
let file = SourceFile::parse(text);
check_file_invariants(&file);
}

9
crates/ra_syntax/src/lib.rs
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@ -29,6 +29,8 @@ mod ptr;
pub mod algo; pub mod algo;
pub mod ast; pub mod ast;
#[doc(hidden)]
pub mod fuzz;
pub use rowan::{SmolStr, TextRange, TextUnit}; pub use rowan::{SmolStr, TextRange, TextUnit};
pub use ra_parser::SyntaxKind; pub use ra_parser::SyntaxKind;
@ -83,13 +85,6 @@ impl SourceFile {
} }
} }
pub fn check_fuzz_invariants(text: &str) {
let file = SourceFile::parse(text);
let root = file.syntax();
validation::validate_block_structure(root);
let _ = file.errors();
}
/// This test does not assert anything and instead just shows off the crate's /// This test does not assert anything and instead just shows off the crate's
/// API. /// API.
#[test] #[test]

4
crates/ra_syntax/tests/test.rs
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@ -8,7 +8,7 @@ use std::{
}; };
use test_utils::{project_dir, dir_tests, read_text, collect_tests}; use test_utils::{project_dir, dir_tests, read_text, collect_tests};
use ra_syntax::{SourceFile, AstNode, check_fuzz_invariants}; use ra_syntax::{SourceFile, AstNode, fuzz};
#[test] #[test]
fn lexer_tests() { fn lexer_tests() {
@ -47,7 +47,7 @@ fn parser_tests() {
#[test] #[test]
fn parser_fuzz_tests() { fn parser_fuzz_tests() {
for (_, text) in collect_tests(&test_data_dir(), &["parser/fuzz-failures"]) { for (_, text) in collect_tests(&test_data_dir(), &["parser/fuzz-failures"]) {
check_fuzz_invariants(&text) fuzz::check_parser(&text)
} }
} }