rust-fatfs/tests/integration-test.rs
2017-10-07 14:56:50 +02:00

176 lines
4.9 KiB
Rust

extern crate fatfs;
use std::fs;
use std::io::{BufReader, SeekFrom};
use std::io::prelude::*;
use std::str;
use fatfs::{FileSystem, FatType, DirEntry};
const TEST_TEXT: &str = "Rust is cool!\n";
const FAT12_IMG: &str = "resources/fat12.img";
const FAT16_IMG: &str = "resources/fat16.img";
const FAT32_IMG: &str = "resources/fat32.img";
fn call_with_fs(f: &Fn(FileSystem) -> (), filename: &str) {
let file = fs::File::open(filename).unwrap();
let mut buf_rdr = BufReader::new(file);
let fs = FileSystem::new(&mut buf_rdr).unwrap();
f(fs);
}
fn test_root_dir(fs: FileSystem) {
let root_dir = fs.root_dir();
let entries = root_dir.iter().map(|r| r.unwrap()).collect::<Vec<DirEntry>>();
let short_names = entries.iter().map(|e| e.short_file_name()).collect::<Vec<String>>();
assert_eq!(short_names, ["LONG.TXT", "SHORT.TXT", "VERY", "VERY-L~1"]);
let names = entries.iter().map(|e| e.file_name()).collect::<Vec<String>>();
assert_eq!(names, ["long.txt", "short.txt", "very", "very-long-dir-name"]);
// Try read again
let names2 = root_dir.iter().map(|r| r.unwrap().file_name()).collect::<Vec<String>>();
assert_eq!(names2, names);
}
#[test]
fn test_root_dir_fat12() {
call_with_fs(&test_root_dir, FAT12_IMG)
}
#[test]
fn test_root_dir_fat16() {
call_with_fs(&test_root_dir, FAT16_IMG)
}
#[test]
fn test_root_dir_fat32() {
call_with_fs(&test_root_dir, FAT32_IMG)
}
fn test_read_seek_short_file(fs: FileSystem) {
let mut root_dir = fs.root_dir();
let mut short_file = root_dir.open_file("short.txt").unwrap();
let mut buf = Vec::new();
short_file.read_to_end(&mut buf).unwrap();
assert_eq!(str::from_utf8(&buf).unwrap(), TEST_TEXT);
short_file.seek(SeekFrom::Start(5)).unwrap();
let mut buf2 = [0; 5];
short_file.read_exact(&mut buf2).unwrap();
assert_eq!(str::from_utf8(&buf2).unwrap(), &TEST_TEXT[5..10]);
}
#[test]
fn test_read_seek_short_file_fat12() {
call_with_fs(&test_read_seek_short_file, FAT12_IMG)
}
#[test]
fn test_read_seek_short_file_fat16() {
call_with_fs(&test_read_seek_short_file, FAT16_IMG)
}
#[test]
fn test_read_seek_short_file_fat32() {
call_with_fs(&test_read_seek_short_file, FAT32_IMG)
}
fn test_read_long_file(fs: FileSystem) {
let mut root_dir = fs.root_dir();
let mut long_file = root_dir.open_file("long.txt").unwrap();
let mut buf = Vec::new();
long_file.read_to_end(&mut buf).unwrap();
assert_eq!(str::from_utf8(&buf).unwrap(), TEST_TEXT.repeat(1000));
long_file.seek(SeekFrom::Start(2017)).unwrap();
buf.clear();
let mut buf2 = [0; 10];
long_file.read_exact(&mut buf2).unwrap();
assert_eq!(str::from_utf8(&buf2).unwrap(), &TEST_TEXT.repeat(1000)[2017..2027]);
}
#[test]
fn test_read_long_file_fat12() {
call_with_fs(&test_read_long_file, FAT12_IMG)
}
#[test]
fn test_read_long_file_fat16() {
call_with_fs(&test_read_long_file, FAT16_IMG)
}
#[test]
fn test_read_long_file_fat32() {
call_with_fs(&test_read_long_file, FAT32_IMG)
}
fn test_get_dir_by_path(fs: FileSystem) {
let mut root_dir = fs.root_dir();
let dir = root_dir.open_dir("very/long/path/").unwrap();
let names = dir.iter().map(|r| r.unwrap().file_name()).collect::<Vec<String>>();
assert_eq!(names, [".", "..", "test.txt"]);
}
#[test]
fn test_get_dir_by_path_fat12() {
call_with_fs(&test_get_dir_by_path, FAT12_IMG)
}
#[test]
fn test_get_dir_by_path_fat16() {
call_with_fs(&test_get_dir_by_path, FAT16_IMG)
}
#[test]
fn test_get_dir_by_path_fat32() {
call_with_fs(&test_get_dir_by_path, FAT32_IMG)
}
fn test_get_file_by_path(fs: FileSystem) {
let mut root_dir = fs.root_dir();
let mut file = root_dir.open_file("very/long/path/test.txt").unwrap();
let mut buf = Vec::new();
file.read_to_end(&mut buf).unwrap();
assert_eq!(str::from_utf8(&buf).unwrap(), TEST_TEXT);
let mut file = root_dir.open_file("very-long-dir-name/very-long-file-name.txt").unwrap();
let mut buf = Vec::new();
file.read_to_end(&mut buf).unwrap();
assert_eq!(str::from_utf8(&buf).unwrap(), TEST_TEXT);
}
#[test]
fn test_get_file_by_path_fat12() {
call_with_fs(&test_get_file_by_path, FAT12_IMG)
}
#[test]
fn test_get_file_by_path_fat16() {
call_with_fs(&test_get_file_by_path, FAT16_IMG)
}
#[test]
fn test_get_file_by_path_fat32() {
call_with_fs(&test_get_file_by_path, FAT32_IMG)
}
fn test_volume_metadata(fs: FileSystem, fat_type: FatType) {
assert_eq!(fs.volume_id(), 0x12345678);
assert_eq!(fs.volume_label(), "Test!");
assert_eq!(fs.fat_type(), fat_type);
}
#[test]
fn test_volume_metadata_fat12() {
call_with_fs(&|fs| test_volume_metadata(fs, FatType::Fat12), FAT12_IMG)
}
#[test]
fn test_volume_metadata_fat16() {
call_with_fs(&|fs| test_volume_metadata(fs, FatType::Fat16), FAT16_IMG)
}
#[test]
fn test_volume_metadata_fat32() {
call_with_fs(&|fs| test_volume_metadata(fs, FatType::Fat32), FAT32_IMG)
}