thin-provisioning-tools/tests/thin_metadata_unpack.rs

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Rust
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use anyhow::Result;
mod common;
use common::common_args::*;
use common::fixture::*;
use common::input_arg::*;
use common::output_option::*;
use common::process::*;
use common::program::*;
use common::target::*;
use common::test_dir::*;
use common::thin::*;
//------------------------------------------
const USAGE: &str = concat!(
"thin_metadata_unpack ",
include_str!("../VERSION"),
"Unpack a compressed file of thin metadata.\n\
\n\
USAGE:\n \
thin_metadata_unpack -i <DEV> -o <FILE>\n\
\n\
FLAGS:\n \
-h, --help Prints help information\n \
-V, --version Prints version information\n\
\n\
OPTIONS:\n \
-i <DEV> Specify thinp metadata binary device/file\n \
-o <FILE> Specify packed output file"
);
//------------------------------------------
struct ThinMetadataUnpack;
impl<'a> Program<'a> for ThinMetadataUnpack {
fn name() -> &'a str {
"thin_metadata_pack"
}
fn cmd<I>(args: I) -> duct::Expression
where
I: IntoIterator,
I::Item: Into<std::ffi::OsString>,
{
thin_metadata_unpack_cmd(args)
}
fn usage() -> &'a str {
USAGE
}
fn arg_type() -> ArgType {
ArgType::IoOptions
}
fn bad_option_hint(option: &str) -> String {
msg::bad_option_hint(option)
}
}
impl<'a> InputProgram<'a> for ThinMetadataUnpack {
fn mk_valid_input(td: &mut TestDir) -> Result<std::path::PathBuf> {
mk_zeroed_md(td) // FIXME: make a real pack file
}
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 {
"Not a pack file"
}
}
impl<'a> OutputProgram<'a> for ThinMetadataUnpack {
fn missing_output_arg() -> &'a str {
msg::MISSING_OUTPUT_ARG
}
}
//------------------------------------------
test_accepts_help!(ThinMetadataUnpack);
test_accepts_version!(ThinMetadataUnpack);
test_rejects_bad_option!(ThinMetadataUnpack);
test_missing_input_option!(ThinMetadataUnpack);
test_input_file_not_found!(ThinMetadataUnpack);
test_corrupted_input_data!(ThinMetadataUnpack);
test_missing_output_option!(ThinMetadataUnpack);
//------------------------------------------
// TODO: share with thin_restore/cache_restore/era_restore
#[test]
fn end_to_end() -> Result<()> {
let mut td = TestDir::new()?;
let md_in = mk_valid_md(&mut td)?;
let md_out = mk_zeroed_md(&mut td)?;
run_ok(thin_metadata_pack_cmd(args!["-i", &md_in, "-o", "meta.pack"]))?;
run_ok(thin_metadata_unpack_cmd(args!["-i", "meta.pack", "-o", &md_out]))?;
let dump1 = run_ok(thin_dump_cmd(args![&md_in]))?;
let dump2 = run_ok(thin_dump_cmd(args![&md_out]))?;
assert_eq!(dump1, dump2);
Ok(())
}
//------------------------------------------