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Some distributions (such as Debian) put the mkfs.ext4 binary in /sbin or /usr/sbin. However, in our case, we don't need to be root, since we are only using it to create a filesystem inside a normal file, not on a block device. Adding these directories to the path lets us find the mkfs binary on these systems without requiring sudo privileges. BUG=None TEST=cargo test -p integration_tests -- --test-threads=1 Change-Id: I9b180f941ee81c5febf78004050d211fe1912621 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3940108 Commit-Queue: Daniel Verkamp <dverkamp@chromium.org> Reviewed-by: Junichi Uekawa <uekawa@chromium.org>
49 lines
1.4 KiB
Rust
49 lines
1.4 KiB
Rust
// Copyright 2022 The ChromiumOS Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//! Testing virtio-block.
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pub mod fixture;
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use std::env;
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use std::process::Command;
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use fixture::Config;
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use fixture::TestVm;
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use tempfile::NamedTempFile;
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fn prepare_disk_img() -> NamedTempFile {
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let mut disk = NamedTempFile::new().unwrap();
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disk.as_file_mut().set_len(1024 * 1024).unwrap();
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// Add /sbin and /usr/sbin to PATH since some distributions put mkfs.ext4 in one of those
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// directories but don't add them to non-root PATH.
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let path = env::var("PATH").unwrap();
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let path = [&path, "/sbin", "/usr/sbin"].join(":");
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// TODO(b/243127910): Use `mkfs.ext4 -d` to include test data.
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Command::new("mkfs.ext4")
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.arg(disk.path().to_str().unwrap())
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.env("PATH", path)
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.output()
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.expect("failed to execute process");
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disk
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}
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// TODO(b/243127498): Add tests for write and sync operations.
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#[test]
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fn mount_block() {
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let disk = prepare_disk_img();
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let disk_path = disk.path().to_str().unwrap().to_string();
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println!("disk={disk_path}");
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let config = Config::new().extra_args(vec!["--rwdisk".to_string(), disk_path]);
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let mut vm = TestVm::new(config).unwrap();
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assert_eq!(
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vm.exec_in_guest("mount -t ext4 /dev/vdb /mnt && echo 42")
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.unwrap()
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.trim(),
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"42"
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);
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}
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