tests: add fsck test

Author: badicsalex

tests/fsck.rs

@@ -0,0 +1,48 @@
+#![cfg(target_os="linux")]
+use fatfs::Write;
+
+const KB: u32 = 1024;
+const MB: u32 = KB * 1024;
+
+#[test]
+fn test_fsck_1mb() {
+    let _ = env_logger::builder().is_test(true).try_init();
+
+    let mut image = std::fs::OpenOptions::new()
+        .write(true)
+        .read(true)
+        .create(true)
+        .open("/tmp/test.img")
+        .expect("open temporary image file");
+    image.set_len(MB as u64).expect("set_len on temp file");
+
+    fatfs::format_volume(
+        &mut fatfs::StdIoWrapper::from(image.try_clone().expect("clone tempfile")),
+        fatfs::FormatVolumeOptions::new().total_sectors(MB / 512),
+    )
+    .expect("format volume");
+
+    let fs = fatfs::FileSystem::new(image, fatfs::FsOptions::new()).expect("open fs");
+    fs.root_dir().create_dir("dir1").expect("create dir1");
+    fs.root_dir()
+        .create_file("root file.bin")
+        .expect("create root file")
+        .write_all(&[0xab; (16 * KB) as usize])
+        .expect("root file write");
+    let dir2 = fs.root_dir().create_dir("dir2").expect("create dir2");
+    dir2.create_dir("subdir").expect("subdir");
+    dir2.create_file("file1")
+        .expect("file1")
+        .write_all(b"testing 1 2 1 2")
+        .expect("file 1 write");
+    core::mem::drop(dir2);
+    core::mem::drop(fs);
+
+    let fsck_status = std::process::Command::new("fsck.vfat")
+        .args(&["-n", "/tmp/test.img"])
+        .spawn()
+        .expect("spawn fsck")
+        .wait()
+        .expect("wait on fsck");
+    assert!(fsck_status.success(), "fsck was not successful ({fsck_status:?})");
+}