mirror of
https://github.com/rust-lang/cargo
synced 2024-08-25 02:25:46 +00:00
Add test demonstrating deduplication of errors.
This commit is contained in:
parent
493e8b7dd1
commit
13fef863ab
|
@ -3,6 +3,7 @@
|
|||
//! Tests for message caching can be found in `cache_messages`.
|
||||
|
||||
use cargo_test_support::{process, project, Project};
|
||||
use cargo_util::ProcessError;
|
||||
|
||||
/// Captures the actual diagnostics displayed by rustc. This is done to avoid
|
||||
/// relying on the exact message formatting in rustc.
|
||||
|
@ -14,20 +15,24 @@ pub fn raw_rustc_output(project: &Project, path: &str, extra: &[&str]) -> String
|
|||
} else {
|
||||
proc.arg(path);
|
||||
}
|
||||
let rustc_output = proc
|
||||
let rustc_output = match proc
|
||||
.arg("--crate-type=lib")
|
||||
.args(extra)
|
||||
.cwd(project.root())
|
||||
.exec_with_output()
|
||||
.expect("rustc to run");
|
||||
assert!(rustc_output.stdout.is_empty());
|
||||
assert!(rustc_output.status.success());
|
||||
{
|
||||
Ok(output) => output.stderr,
|
||||
Err(e) => e.downcast::<ProcessError>().unwrap().stderr.unwrap(),
|
||||
};
|
||||
// Do a little dance to remove rustc's "warnings emitted" message and the subsequent newline.
|
||||
let stderr = std::str::from_utf8(&rustc_output.stderr).expect("utf8");
|
||||
let stderr = std::str::from_utf8(&rustc_output).expect("utf8");
|
||||
let mut lines = stderr.lines();
|
||||
let mut result = String::new();
|
||||
while let Some(line) = lines.next() {
|
||||
if line.contains("warning emitted") || line.contains("warnings emitted") {
|
||||
if line.contains("warning emitted")
|
||||
|| line.contains("warnings emitted")
|
||||
|| line.contains("aborting due to")
|
||||
{
|
||||
// Eat blank line.
|
||||
match lines.next() {
|
||||
None | Some("") => continue,
|
||||
|
@ -112,3 +117,26 @@ warning: `foo` (lib test) generated 2 warnings (1 duplicate)
|
|||
.with_stderr(expected_output)
|
||||
.run();
|
||||
}
|
||||
|
||||
#[cargo_test]
|
||||
fn deduplicate_errors() {
|
||||
let p = project()
|
||||
.file(
|
||||
"src/lib.rs",
|
||||
r#"
|
||||
this should not compile
|
||||
"#,
|
||||
)
|
||||
.build();
|
||||
let rustc_message = raw_rustc_output(&p, "src/lib.rs", &[]);
|
||||
p.cargo("test -j1")
|
||||
.with_status(101)
|
||||
.with_stderr(&format!(
|
||||
"\
|
||||
[COMPILING] foo v0.0.1 [..]
|
||||
{}error: could not compile `foo` due to previous error
|
||||
",
|
||||
rustc_message
|
||||
))
|
||||
.run();
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue