[clang] [clang][test] Avoid writing to a potentially write-protected dir (PR #96457)

[Karl-Johan Karlsson via cfe-commits]

https://github.com/karka228 created https://github.com/llvm/llvm-project/pull/96457

The test clang/test/Preprocessor/embed_weird.cpp create a file directly in the Inputs dir in the llvm-project repo instead of the temporary directory. The llvm-project repo may be write protected e.g. in a sandboxed environment.

This patch create a separate temporary directory where the the null_byte.bin file is created along with the rest of copies of the other embed-files needed for the testcase.

>From abf92edafdaae4b8e39cd11f21c366b8c5afc0d0 Mon Sep 17 00:00:00 2001
From: Karl-Johan Karlsson <karl-johan.karlsson at ericsson.com>
Date: Mon, 24 Jun 2024 08:49:12 +0200
Subject: [PATCH] [clang][test] Avoid writing to a potentially write-protected
 dir

The test clang/test/Preprocessor/embed_weird.cpp create a file directly in the
Inputs dir in the llvm-project repo instead of the temporary directory. The
llvm-project repo may be write protected e.g. in a sandboxed environment.

This patch create a separate temporary directory where the the null_byte.bin
file is created along with the rest of copies of the other embed-files needed
for the testcase.
---
 clang/test/Preprocessor/embed_weird.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/clang/test/Preprocessor/embed_weird.cpp b/clang/test/Preprocessor/embed_weird.cpp
index a90d3bc330538..31b622c848d6a 100644
--- a/clang/test/Preprocessor/embed_weird.cpp
+++ b/clang/test/Preprocessor/embed_weird.cpp
@@ -1,7 +1,9 @@
-// RUN: printf "\0" > %S/Inputs/null_byte.bin
-// RUN: %clang_cc1 %s -fsyntax-only --embed-dir=%S/Inputs -verify=expected,cxx -Wno-c23-extensions
-// RUN: %clang_cc1 -x c -std=c23 %s -fsyntax-only --embed-dir=%S/Inputs -verify=expected,c
-// RUN: rm %S/Inputs/null_byte.bin
+// RUN: rm -rf %t && mkdir -p %t/media
+// RUN: cp %S/Inputs/single_byte.txt %S/Inputs/jk.txt %S/Inputs/numbers.txt %t/
+// RUN: cp %S/Inputs/media/empty %t/media/
+// RUN: printf "\0" > %t/null_byte.bin
+// RUN: %clang_cc1 %s -fsyntax-only --embed-dir=%t -verify=expected,cxx -Wno-c23-extensions
+// RUN: %clang_cc1 -x c -std=c23 %s -fsyntax-only --embed-dir=%t -verify=expected,c
 #embed <media/empty>
 ;