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kargs: Put tests in a module
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Prep for more tests.

Signed-off-by: Colin Walters <[email protected]>
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@cgwalters
cgwalters committed Jun 27, 2024
1 parent 5e1945b commit 1c239e7
Showing 1 changed file with 70 additions and 65 deletions.
135 changes: 70 additions & 65 deletions lib/src/kargs.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -154,79 +154,84 @@ fn parse_kargs_toml(contents: &str, sys_arch: &str) -> Result<Vec<String>> {
Ok(r)
}

#[test]
/// Verify that kargs are only applied to supported architectures
fn test_arch() {
// no arch specified, kargs ensure that kargs are applied unconditionally
let sys_arch = "x86_64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]"##.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
let sys_arch = "aarch64";
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);

// one arch matches and one doesn't, ensure that kargs are only applied for the matching arch
let sys_arch = "aarch64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]
#[cfg(test)]
mod tests {
use super::*;

#[test]
/// Verify that kargs are only applied to supported architectures
fn test_arch() {
// no arch specified, kargs ensure that kargs are applied unconditionally
let sys_arch = "x86_64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]"##.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
let sys_arch = "aarch64";
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);

// one arch matches and one doesn't, ensure that kargs are only applied for the matching arch
let sys_arch = "aarch64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]
match-architectures = ["x86_64"]
"##
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, [] as [String; 0]);
let file_content = r##"kargs = ["console=tty0", "nosmt"]
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, [] as [String; 0]);
let file_content = r##"kargs = ["console=tty0", "nosmt"]
match-architectures = ["aarch64"]
"##
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);

// multiple arch specified, ensure that kargs are applied to both archs
let sys_arch = "x86_64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]
// multiple arch specified, ensure that kargs are applied to both archs
let sys_arch = "x86_64";
let file_content = r##"kargs = ["console=tty0", "nosmt"]
match-architectures = ["x86_64", "aarch64"]
"##
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
std::env::set_var("ARCH", "aarch64");
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
}
.to_string();
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
std::env::set_var("ARCH", "aarch64");
let parsed_kargs = parse_kargs_toml(&file_content, sys_arch).unwrap();
assert_eq!(parsed_kargs, ["console=tty0", "nosmt"]);
}

#[test]
/// Verify some error cases
fn test_invalid() {
let test_invalid_extra = r#"kargs = ["console=tty0", "nosmt"]\nfoo=bar"#;
assert!(parse_kargs_toml(test_invalid_extra, "x86_64").is_err());
#[test]
/// Verify some error cases
fn test_invalid() {
let test_invalid_extra = r#"kargs = ["console=tty0", "nosmt"]\nfoo=bar"#;
assert!(parse_kargs_toml(test_invalid_extra, "x86_64").is_err());

let test_missing = r#"foo=bar"#;
assert!(parse_kargs_toml(test_missing, "x86_64").is_err());
}
let test_missing = r#"foo=bar"#;
assert!(parse_kargs_toml(test_missing, "x86_64").is_err());
}

#[test]
fn test_get_kargs_in_root() -> Result<()> {
let td = cap_std_ext::cap_tempfile::TempDir::new(cap_std::ambient_authority())?;

// No directory
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
// Empty directory
td.create_dir_all("usr/lib/bootc/kargs.d")?;
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
// Non-toml file
td.write("usr/lib/bootc/kargs.d/somegarbage", "garbage")?;
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
td.write(
"usr/lib/bootc/kargs.d/01-foo.toml",
r##"kargs = ["console=tty0", "nosmt"]"##,
)?;
td.write(
"usr/lib/bootc/kargs.d/02-bar.toml",
r##"kargs = ["console=ttyS1"]"##,
)?;

let args = get_kargs_in_root(&td, "x86_64").unwrap();
similar_asserts::assert_eq!(args, ["console=tty0", "nosmt", "console=ttyS1"]);

Ok(())
#[test]
fn test_get_kargs_in_root() -> Result<()> {
let td = cap_std_ext::cap_tempfile::TempDir::new(cap_std::ambient_authority())?;

// No directory
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
// Empty directory
td.create_dir_all("usr/lib/bootc/kargs.d")?;
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
// Non-toml file
td.write("usr/lib/bootc/kargs.d/somegarbage", "garbage")?;
assert_eq!(get_kargs_in_root(&td, "x86_64").unwrap().len(), 0);
td.write(
"usr/lib/bootc/kargs.d/01-foo.toml",
r##"kargs = ["console=tty0", "nosmt"]"##,
)?;
td.write(
"usr/lib/bootc/kargs.d/02-bar.toml",
r##"kargs = ["console=ttyS1"]"##,
)?;

let args = get_kargs_in_root(&td, "x86_64").unwrap();
similar_asserts::assert_eq!(args, ["console=tty0", "nosmt", "console=ttyS1"]);

Ok(())
}
}

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