mirror of https://github.com/rust-lang/rust
43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
// Check libtest's JSON output against snapshots.
|
|
|
|
//@ ignore-cross-compile
|
|
//@ needs-unwind (test file contains #[should_panic] test)
|
|
|
|
use run_make_support::{cmd, diff, rustc, serde_json};
|
|
|
|
fn main() {
|
|
rustc().arg("--test").input("f.rs").run();
|
|
|
|
run_tests(&[], "output-default.json");
|
|
run_tests(&["--show-output"], "output-stdout-success.json");
|
|
}
|
|
|
|
#[track_caller]
|
|
fn run_tests(extra_args: &[&str], expected_file: &str) {
|
|
let cmd_out = cmd("./f")
|
|
.env("RUST_BACKTRACE", "0")
|
|
.args(&["-Zunstable-options", "--test-threads=1", "--format=json"])
|
|
.args(extra_args)
|
|
.run_fail();
|
|
let test_stdout = &cmd_out.stdout_utf8();
|
|
|
|
// Verify that the test process output is JSON Lines, i.e. each line is valid JSON.
|
|
for (line, n) in test_stdout.lines().zip(1..) {
|
|
if let Err(e) = serde_json::from_str::<serde_json::Value>(line) {
|
|
panic!(
|
|
"could not parse JSON on line {n}: {e}\n\
|
|
\n\
|
|
=== STDOUT ===\n\
|
|
{test_stdout}\
|
|
=============="
|
|
);
|
|
}
|
|
}
|
|
|
|
diff()
|
|
.expected_file(expected_file)
|
|
.actual_text("stdout", test_stdout)
|
|
.normalize(r#"(?<prefix>"exec_time": )[0-9.]+"#, r#"${prefix}"$$EXEC_TIME""#)
|
|
.run();
|
|
}
|