Add test for alias shadowing external subcommand

This is currently still permitted, so we only test that the warning is properly issued
rust-lang · Nov 17, 2021 · 0b4e2ca · 0b4e2ca
1 parent cba8503
commit 0b4e2ca
Showing 1 changed file with 32 additions and 0 deletions.
diff --git a/tests/testsuite/cargo_alias_config.rs b/tests/testsuite/cargo_alias_config.rs
@@ -76,6 76,38 @@ fn dependent_alias() {
  .run();
 }
 
 #[cargo_test]
 fn alias_shadowing_external_subcommand() {
  let echo = echo_subcommand();
  let p = project()
  .file("Cargo.toml", &basic_bin_manifest("foo"))
  .file("src/main.rs", "fn main() {}")
  .file(
  ".cargo/config",
  r#"
  [alias]
  echo = "build"
  "#,
  )
  .build();
 
  let mut paths: Vec<_> = env::split_paths(&env::var_os("PATH").unwrap_or_default()).collect();
  paths.push(echo.target_debug_dir());
  let path = env::join_paths(paths).unwrap();
 
  p.cargo("echo")
  .env("PATH", &path)
  .with_stderr("\
 [WARNING] user-defined alias `echo` is shadowing an external subcommand found at: `[ROOT]/cargo-echo/target/debug/cargo-echo[EXE]`
 This was previously accepted but is being phased out; it will become a hard error in a future release.
 For more information, see issue #10049 <https://github.com/rust-lang/cargo/issues/10049>.
 [COMPILING] foo v0.5.0 [..]
 [FINISHED] dev [unoptimized debuginfo] target(s) in [..]
 ",
  )
  .run();
 }
 
 #[cargo_test]
 fn default_args_alias() {
  let echo = echo_subcommand();