From bb70277e96c183ae3f07ecfdd11be0ee5257112e Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 22 Jul 2021 11:56:54 +0200
Subject: [PATCH] add test case for mixed language link tests

---
 .../unit/97 compiler.links file arg/meson.build    | 11 +++++++++++
 test cases/unit/97 compiler.links file arg/test.c  |  1 +
 unittests/allplatformstests.py                     | 14 ++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 test cases/unit/97 compiler.links file arg/meson.build
 create mode 100644 test cases/unit/97 compiler.links file arg/test.c

diff --git a/test cases/unit/97 compiler.links file arg/meson.build b/test cases/unit/97 compiler.links file arg/meson.build
new file mode 100644
index 000000000..c409dcbd1
--- /dev/null
+++ b/test cases/unit/97 compiler.links file arg/meson.build	
@@ -0,0 +1,11 @@
+project('test', ['c', 'cpp'])
+
+cc = meson.get_compiler('c')
+cxx = meson.get_compiler('cpp')
+
+# used by run_unittests.py to grab the path to the C and C++ compilers
+assert(cc.compiles(files('test.c')))
+assert(cxx.compiles(files('test.c')))
+
+assert(cc.links(files('test.c')))
+assert(cxx.links(files('test.c')))
diff --git a/test cases/unit/97 compiler.links file arg/test.c b/test cases/unit/97 compiler.links file arg/test.c
new file mode 100644
index 000000000..78f2de106
--- /dev/null
+++ b/test cases/unit/97 compiler.links file arg/test.c	
@@ -0,0 +1 @@
+int main(void) { return 0; }
diff --git a/unittests/allplatformstests.py b/unittests/allplatformstests.py
index 6ead45ed9..055d701e5 100644
--- a/unittests/allplatformstests.py
+++ b/unittests/allplatformstests.py
@@ -1924,6 +1924,20 @@ class AllPlatformTests(BasePlatformTests):
                'recommended as it is not supported on some platforms')
         self.assertIn(msg, out)
 
+    def test_mixed_language_linker_check(self):
+        testdir = os.path.join(self.unit_test_dir, '97 compiler.links file arg')
+        self.init(testdir)
+        cmds = self.get_meson_log_compiler_checks()
+        self.assertEqual(len(cmds), 5)
+        # Path to the compilers, gleaned from cc.compiles tests
+        cc = cmds[0][0]
+        cxx = cmds[1][0]
+        # cc.links
+        self.assertEqual(cmds[2][0], cc)
+        # cxx.links with C source
+        self.assertEqual(cmds[3][0], cc)
+        self.assertEqual(cmds[4][0], cxx)
+
     def test_ndebug_if_release_disabled(self):
         testdir = os.path.join(self.unit_test_dir, '28 ndebug if-release')
         self.init(testdir, extra_args=['--buildtype=release', '-Db_ndebug=if-release'])