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vmm: config: Implement unit testing for virtio-fs parsing

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2020-04-02 10:41:35 +01:00
parent e4cd3072d4
commit 7a071c28db
1 changed files with 71 additions and 0 deletions
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71
vmm/src/config.rs
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@ -772,6 +772,19 @@ fn default_fsconfig_cache_size() -> u64 {
0x0002_0000_0000
}
impl Default for FsConfig {
fn default() -> Self {
Self {
tag: "".to_owned(),
sock: PathBuf::new(),
num_queues: default_fsconfig_num_queues(),
queue_size: default_fsconfig_queue_size(),
dax: default_fsconfig_dax(),
cache_size: default_fsconfig_cache_size(),
}
}
}
impl FsConfig {
pub fn parse(fs: &str) -> Result<Self> {
// Split the parameters based on the comma delimiter
@ -1510,4 +1523,62 @@ mod tests {
);
Ok(())
}
#[test]
fn test_parse_fs() -> Result<()> {
// "tag" and "socket" must be supplied
assert!(FsConfig::parse("").is_err());
assert!(FsConfig::parse("tag=mytag").is_err());
assert!(FsConfig::parse("sock=/tmp/sock").is_err());
assert_eq!(
FsConfig::parse("tag=mytag,sock=/tmp/sock")?,
FsConfig {
sock: PathBuf::from("/tmp/sock"),
tag: "mytag".to_owned(),
..Default::default()
}
);
assert_eq!(
FsConfig::parse("tag=mytag,sock=/tmp/sock")?,
FsConfig {
sock: PathBuf::from("/tmp/sock"),
tag: "mytag".to_owned(),
..Default::default()
}
);
assert_eq!(
FsConfig::parse("tag=mytag,sock=/tmp/sock,num_queues=4,queue_size=1024")?,
FsConfig {
sock: PathBuf::from("/tmp/sock"),
tag: "mytag".to_owned(),
num_queues: 4,
queue_size: 1024,
..Default::default()
}
);
// DAX on -> default cache size
assert_eq!(
FsConfig::parse("tag=mytag,sock=/tmp/sock,dax=on")?,
FsConfig {
sock: PathBuf::from("/tmp/sock"),
tag: "mytag".to_owned(),
dax: true,
cache_size: default_fsconfig_cache_size(),
..Default::default()
}
);
assert_eq!(
FsConfig::parse("tag=mytag,sock=/tmp/sock,dax=on,cache_size=4G")?,
FsConfig {
sock: PathBuf::from("/tmp/sock"),
tag: "mytag".to_owned(),
dax: true,
cache_size: 4 << 30,
..Default::default()
}
);
// Cache size without DAX is an error
assert!(FsConfig::parse("tag=mytag,sock=/tmp/sock,dax=off,cache_size=4G").is_err());
Ok(())
}
}