Auto merge of #132979 - onur-ozkan:skip-exact, r=<try>

use `--exact` on `--skip` to avoid unintended substring matches

Without the `--exact` flag, using `--skip tests/rustdoc` can unintentionally skip other tests that match as substrings such as `rustdoc-gui`, `rustdoc-js`, etc.

For debugging, run: `./x.py --stage 2 test rustdoc-ui --skip tests/rustdoc` and `./x.py --stage 2 test rustdoc-ui --skip tests/rustdoc -- --exact`

Resolves #117721

try-job: x86_64-apple-1

src/bootstrap/src/core/build_steps/test.rs

@@ -3405,7 +3405,6 @@ impl Step for CodegenCranelift {
             // FIXME remove once vendoring is handled
             .arg("--skip-test")
             .arg("testsuite.extended_sysroot");
-        cargo.args(builder.config.test_args());
 
         cargo.into_cmd().run(builder);
     }
@@ -3600,13 +3599,10 @@ impl Step for TestFloatParse {
             &[],
         );
 
-        cargo_run.arg("--");
-        if builder.config.args().is_empty() {
+        cargo_run
+            .arg("--")
             // By default, exclude tests that take longer than ~1m.
-            cargo_run.arg("--skip-huge");
-        } else {
-            cargo_run.args(builder.config.args());
-        }
+            .arg("--skip-huge");
 
         cargo_run.into_cmd().run(builder);
     }

src/ci/github-actions/jobs.yml

@@ -48,7 +48,7 @@ runners:
 
 envs:
   env-x86_64-apple-tests: &env-x86_64-apple-tests
-    SCRIPT: ./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc
+    SCRIPT: ./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc -- --exact
     RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc
     RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
     MACOSX_DEPLOYMENT_TARGET: 10.12