thin-provisioning-tools/tests/thin_dump.rs
2021-09-10 23:50:36 +08:00

252 lines
5.9 KiB
Rust

use anyhow::Result;
use std::fs::OpenOptions;
use std::io::Write;
use std::str::from_utf8;
mod common;
use common::common_args::*;
use common::fixture::*;
use common::input_arg::*;
use common::process::*;
use common::program::*;
use common::target::*;
use common::test_dir::*;
use common::thin::*;
//------------------------------------------
const USAGE: &str = "Usage: thin_dump [options] {device|file}\n\
Options:\n \
{-h|--help}\n \
{-f|--format} {xml|human_readable|custom}\n \
{-r|--repair}\n \
{-m|--metadata-snap} [block#]\n \
{-o <xml file>}\n \
{--dev-id} <dev-id>\n \
{--skip-mappings}\n \
{-V|--version}";
//-----------------------------------------
struct ThinDump;
impl<'a> Program<'a> for ThinDump {
fn name() -> &'a str {
"thin_dump"
}
fn path() -> &'a std::ffi::OsStr {
THIN_DUMP.as_ref()
}
fn usage() -> &'a str {
USAGE
}
fn arg_type() -> ArgType {
ArgType::InputArg
}
fn bad_option_hint(option: &str) -> String {
msg::bad_option_hint(option)
}
}
impl<'a> InputProgram<'a> for ThinDump {
fn mk_valid_input(td: &mut TestDir) -> Result<std::path::PathBuf> {
mk_valid_md(td)
}
fn file_not_found() -> &'a str {
msg::FILE_NOT_FOUND
}
fn missing_input_arg() -> &'a str {
msg::MISSING_INPUT_ARG
}
fn corrupted_input() -> &'a str {
msg::BAD_SUPERBLOCK
}
}
//------------------------------------------
test_accepts_help!(ThinDump);
test_accepts_version!(ThinDump);
test_rejects_bad_option!(ThinDump);
test_missing_input_arg!(ThinDump);
test_input_file_not_found!(ThinDump);
test_input_cannot_be_a_directory!(ThinDump);
test_unreadable_input_file!(ThinDump);
//------------------------------------------
// test dump & restore cycle
#[test]
fn dump_restore_cycle() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
let output = run_ok_raw(THIN_DUMP, args![&md])?;
let xml = td.mk_path("meta.xml");
let mut file = OpenOptions::new()
.read(false)
.write(true)
.create(true)
.open(&xml)?;
file.write_all(&output.stdout[0..])?;
drop(file);
let md2 = mk_zeroed_md(&mut td)?;
run_ok(THIN_RESTORE, args!["-i", &xml, "-o", &md2])?;
let output2 = run_ok_raw(THIN_DUMP, args![&md2])?;
assert_eq!(output.stdout, output2.stdout);
Ok(())
}
//------------------------------------------
// test no stderr with a normal dump
#[test]
#[cfg(not(feature = "rust_tests"))]
fn no_stderr() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
let output = run_ok_raw(THIN_DUMP, args![&md])?;
assert_eq!(output.stderr.len(), 0);
Ok(())
}
//------------------------------------------
// test superblock overriding & repair
// TODO: share with thin_repair
fn override_something(flag: &str, value: &str, pattern: &str) -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
let output = run_ok_raw(THIN_DUMP, args![&md, flag, value])?;
if !cfg!(feature = "rust_tests") {
assert_eq!(output.stderr.len(), 0);
}
assert!(from_utf8(&output.stdout[0..])?.contains(pattern));
Ok(())
}
#[test]
fn override_transaction_id() -> Result<()> {
override_something("--transaction-id", "2345", "transaction=\"2345\"")
}
#[test]
fn override_data_block_size() -> Result<()> {
override_something("--data-block-size", "8192", "data_block_size=\"8192\"")
}
#[test]
fn override_nr_data_blocks() -> Result<()> {
override_something("--nr-data-blocks", "234500", "nr_data_blocks=\"234500\"")
}
// FIXME: duplicate with superblock_succeeds in thin_repair.rs
#[test]
fn repair_superblock() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
let before = run_ok_raw(
THIN_DUMP,
args![
"--transaction-id=5",
"--data-block-size=128",
"--nr-data-blocks=4096000",
&md
],
)?;
damage_superblock(&md)?;
let after = run_ok_raw(
THIN_DUMP,
args![
"--repair",
"--transaction-id=5",
"--data-block-size=128",
"--nr-data-blocks=4096000",
&md
],
)?;
if !cfg!(feature = "rust_tests") {
assert_eq!(after.stderr.len(), 0);
}
assert_eq!(before.stdout, after.stdout);
Ok(())
}
//------------------------------------------
// test compatibility between options
// TODO: share with thin_repair
#[test]
fn missing_transaction_id() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
damage_superblock(&md)?;
let stderr = run_fail(
THIN_DUMP,
args![
"--repair",
"--data-block-size=128",
"--nr-data-blocks=4096000",
&md
],
)?;
assert!(stderr.contains("transaction id"));
Ok(())
}
#[test]
fn missing_data_block_size() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
damage_superblock(&md)?;
let stderr = run_fail(
THIN_DUMP,
args![
"--repair",
"--transaction-id=5",
"--nr-data-blocks=4096000",
&md
],
)?;
assert!(stderr.contains("data block size"));
Ok(())
}
#[test]
fn missing_nr_data_blocks() -> Result<()> {
let mut td = TestDir::new()?;
let md = mk_valid_md(&mut td)?;
damage_superblock(&md)?;
let stderr = run_fail(
THIN_DUMP,
args![
"--repair",
"--transaction-id=5",
"--data-block-size=128",
&md
],
)?;
assert!(stderr.contains("nr data blocks"));
Ok(())
}
//------------------------------------------