49 lines
1.5 KiB
Rust
49 lines
1.5 KiB
Rust
// Copyright 2023 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-fs.
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use fixture::vm::Config;
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use fixture::vm::TestVm;
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/// Tests file copy on virtiofs
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///
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/// 1. Create `original.txt` on a temporal directory.
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/// 2. Start a VM with a virtiofs device for the temporal directory.
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/// 3. Copy `original.txt` to `new.txt` in the guest.
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/// 4. Check that `new.txt` is created in the host.
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#[test]
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fn copy_file() {
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const ORIGINAL_FILE_NAME: &str = "original.txt";
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const NEW_FILE_NAME: &str = "new.txt";
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const TEST_DATA: &str = "virtiofs works!";
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let temp_dir = tempfile::tempdir().unwrap();
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let orig_file = temp_dir.path().join(ORIGINAL_FILE_NAME);
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std::fs::write(orig_file, TEST_DATA).unwrap();
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let tag = "mtdtest";
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let config = Config::new().extra_args(vec![
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"--shared-dir".to_string(),
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format!(
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"{}:{tag}:type=fs:cache=auto",
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temp_dir.path().to_str().unwrap()
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),
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]);
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let mut vm = TestVm::new(config).unwrap();
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// TODO(b/269137600): Split this into multiple lines instead of connecting commands with `&&`.
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vm.exec_in_guest(&format!(
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"mount -t virtiofs {tag} /mnt && cp /mnt/{} /mnt/{} && sync",
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ORIGINAL_FILE_NAME, NEW_FILE_NAME,
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))
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.unwrap();
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let new_file = temp_dir.path().join(NEW_FILE_NAME);
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let contents = std::fs::read(new_file).unwrap();
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assert_eq!(TEST_DATA.as_bytes(), &contents);
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}
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