Add asan test

tests/asan_fuzz.rs

@@ -0,0 +1,92 @@
+use std::{
+    env, fs,
+    path::PathBuf,
+    process, thread,
+    time::{Duration, SystemTime, UNIX_EPOCH},
+};
+
+fn kill_subprocesses_recursively(pid: &str) {
+    let subprocesses = process::Command::new("pgrep")
+        .arg(format!("-P{pid}"))
+        .output()
+        .unwrap();
+
+    for subprocess in std::str::from_utf8(&subprocesses.stdout)
+        .unwrap()
+        .split('\n')
+    {
+        if subprocess.is_empty() {
+            continue;
+        }
+
+        kill_subprocesses_recursively(subprocess);
+    }
+
+    println!("Killing pid {pid}");
+    unsafe {
+        libc::kill(pid.parse::<i32>().unwrap(), libc::SIGTERM);
+    }
+}
+
+#[test]
+#[cfg_attr(not(nightly), ignore)]
+fn asan_crashes() {
+    let unix_time = format!(
+        "{}",
+        SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap()
+            .as_secs()
+    );
+    let temp_dir_path = env::temp_dir().join(unix_time);
+    let metadata = cargo_metadata::MetadataCommand::new().exec().unwrap();
+    let workspace_root: PathBuf = metadata.workspace_root.into();
+    let target_directory: PathBuf = metadata.target_directory.into();
+    let cargo_ziggy = target_directory.join("debug").join("cargo-ziggy");
+    let fuzzer_directory = workspace_root.join("examples").join("asan");
+
+    // TODO Custom target path
+
+    // cargo ziggy build
+    let build_status = process::Command::new(&cargo_ziggy)
+        .arg("ziggy")
+        .arg("build")
+        .current_dir(&fuzzer_directory)
+        .status()
+        .expect("failed to run `cargo ziggy build`");
+
+    assert!(build_status.success(), "`cargo ziggy build` failed");
+
+    // cargo ziggy fuzz --asan
+    let fuzzer = process::Command::new(&cargo_ziggy)
+        .arg("ziggy")
+        .arg("fuzz")
+        .arg("--asan")
+        .env("ZIGGY_OUTPUT", format!("{}", temp_dir_path.display()))
+        .env("AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES", "1")
+        .env("AFL_SKIP_CPUFREQ", "1")
+        .current_dir(&fuzzer_directory)
+        .spawn()
+        .expect("failed to run `cargo ziggy fuzz`");
+    thread::sleep(Duration::from_secs(10));
+    kill_subprocesses_recursively(&format!("{}", fuzzer.id()));
+
+    assert!(temp_dir_path
+        .join("asan-fuzz")
+        .join("afl")
+        .join("mainaflfuzzer")
+        .join("fuzzer_stats")
+        .is_file());
+    assert!(
+        fs::read_dir(
+            temp_dir_path
+                .join("asan-fuzz")
+                .join("afl")
+                .join("mainaflfuzzer")
+                .join("crashes")
+        )
+        .unwrap()
+        .count()
+            != 0
+    );
+}