From 866a469e5a565b0ef5197107172c1d1f396c7b8d Mon Sep 17 00:00:00 2001
From: Antonio Alvarez Feijoo <antonio.feijoo@suse.com>
Date: Wed, 10 Apr 2024 11:07:32 +0200
Subject: [PATCH] test: add missing header to test.h
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```
../src/shared/tests.h:361:28: error: implicit declaration of function ‘fork’ [-Werror=implicit-function-declaration]
  361 |                 int _pid = fork();                                                                              \
      |                            ^~~~
../src/test/test-macro.c:1114:9: note: in expansion of macro ‘ASSERT_SIGNAL’
 1114 |         ASSERT_SIGNAL(ASSERT_OK(-1), SIGABRT);
      |         ^~~~~~~~~~~~~
../src/shared/tests.h:369:25: error: implicit declaration of function ‘_exit’ [-Werror=implicit-function-declaration]
  369 |                         _exit(EXIT_SUCCESS);                                                                    \
      |                         ^~~~~
../src/test/test-macro.c:1114:9: note: in expansion of macro ‘ASSERT_SIGNAL’
 1114 |         ASSERT_SIGNAL(ASSERT_OK(-1), SIGABRT);
      |         ^~~~~~~~~~~~~
../src/shared/tests.h:369:25: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
  369 |                         _exit(EXIT_SUCCESS);                                                                    \
      |                         ^~~~~
../src/test/test-macro.c:1114:9: note: in expansion of macro ‘ASSERT_SIGNAL’
 1114 |         ASSERT_SIGNAL(ASSERT_OK(-1), SIGABRT);
      |         ^~~~~~~~~~~~~
../src/shared/tests.h:369:25: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
  369 |                         _exit(EXIT_SUCCESS);                                                                    \
      |                         ^~~~~
../src/test/test-macro.c:1115:9: note: in expansion of macro ‘ASSERT_SIGNAL’
 1115 |         ASSERT_SIGNAL(ASSERT_OK(-ENOANO), SIGABRT);
      |         ^~~~~~~~~~~~~
../src/test/test-macro.c:1119:21: error: implicit declaration of function ‘getpid’; did you mean ‘getpt’? [-Werror=implicit-function-declaration]
 1119 |         ASSERT_TRUE(getpid());
      |                     ^~~~~~
```

Follow-up for #32189
---
 src/shared/tests.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/shared/tests.h b/src/shared/tests.h
index 07e05bf2676ae..1572ca71022f0 100644
--- a/src/shared/tests.h
+++ b/src/shared/tests.h
@@ -3,6 +3,7 @@
 
 #include <stdbool.h>
 #include <sys/prctl.h>
+#include <unistd.h>
 
 #include "sd-daemon.h"