From 6716b7610583a104916bc4d5012c2827f805468e Mon Sep 17 00:00:00 2001
From: Urgau <urgau@numericable.fr>
Date: Thu, 2 May 2024 12:04:20 +0200
Subject: [PATCH] run-make: port stdin-rustc to Rust-based rmake.rs

---
 .../tidy/src/allowed_run_make_makefiles.txt   |  1 -
 tests/run-make/stdin-non-utf8/Makefile        |  6 -----
 tests/run-make/stdin-non-utf8/non-utf8        |  1 -
 tests/run-make/stdin-rustc/rmake.rs           | 26 +++++++++++++++++++
 4 files changed, 26 insertions(+), 8 deletions(-)
 delete mode 100644 tests/run-make/stdin-non-utf8/Makefile
 delete mode 100644 tests/run-make/stdin-non-utf8/non-utf8
 create mode 100644 tests/run-make/stdin-rustc/rmake.rs

diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
index a2179b895b3d6..1768e2503647a 100644
--- a/src/tools/tidy/src/allowed_run_make_makefiles.txt
+++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -289,7 +289,6 @@ run-make/static-unwinding/Makefile
 run-make/staticlib-blank-lib/Makefile
 run-make/staticlib-dylib-linkage/Makefile
 run-make/std-core-cycle/Makefile
-run-make/stdin-non-utf8/Makefile
 run-make/suspicious-library/Makefile
 run-make/symbol-mangling-hashed/Makefile
 run-make/symbol-visibility/Makefile
diff --git a/tests/run-make/stdin-non-utf8/Makefile b/tests/run-make/stdin-non-utf8/Makefile
deleted file mode 100644
index 709d4cf140895..0000000000000
--- a/tests/run-make/stdin-non-utf8/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-include ../tools.mk
-
-all:
-	cp non-utf8 $(TMPDIR)/non-utf.rs
-	cat $(TMPDIR)/non-utf.rs | $(RUSTC) - 2>&1 \
-		| $(CGREP) "error: couldn't read from stdin, as it did not contain valid UTF-8"
diff --git a/tests/run-make/stdin-non-utf8/non-utf8 b/tests/run-make/stdin-non-utf8/non-utf8
deleted file mode 100644
index bc87051a85299..0000000000000
--- a/tests/run-make/stdin-non-utf8/non-utf8
+++ /dev/null
@@ -1 +0,0 @@
-Ò
diff --git a/tests/run-make/stdin-rustc/rmake.rs b/tests/run-make/stdin-rustc/rmake.rs
new file mode 100644
index 0000000000000..22a3016734619
--- /dev/null
+++ b/tests/run-make/stdin-rustc/rmake.rs
@@ -0,0 +1,26 @@
+//! This test checks rustc `-` (stdin) support
+
+extern crate run_make_support;
+
+use run_make_support::{rustc, tmp_dir};
+
+const HELLO_WORLD: &str = r#"
+fn main() {
+    println!("Hello world!");
+}
+"#;
+
+const NOT_UTF8: &[u8] = &[0xff, 0xff, 0xff];
+
+fn main() {
+    let out_dir = tmp_dir();
+
+    // echo $HELLO_WORLD | rustc -
+    rustc().arg("-").stdin(HELLO_WORLD).run();
+    assert!(out_dir.join("rust_out").try_exists().unwrap());
+
+    // echo $NOT_UTF8 | rustc -
+    let output = rustc().arg("-").stdin(NOT_UTF8).run_fail();
+    let stderr = String::from_utf8(output.stderr).unwrap();
+    assert!(stderr.contains("error: couldn't read from stdin, as it did not contain valid UTF-8"));
+}