test: Make journal storage configurable per test and make persistent for TEST-09-JOURNAL

Also fix a bug in the logic since it's 'volatile' and not 'runtime'.

test/TEST-09-REBOOT/meson.build

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+test_params = test_params + {
+        'storage': 'persistent',
+}

test/integration-test-wrapper.py

@@ -47,6 +47,7 @@ def main():
     parser.add_argument('--meson-build-dir', required=True, type=Path)
     parser.add_argument('--test-name', required=True)
     parser.add_argument('--test-number', required=True)
+    parser.add_argument('--storage', required=True)
     parser.add_argument('mkosi_args', nargs="*")
     args = parser.parse_args()
 
@@ -119,7 +120,7 @@ def main():
                 else []
             ),
         ]),
-        '--credential', f"journal.storage={'persistent' if sys.stderr.isatty() else 'runtime'}" ,
+        '--credential', f"journal.storage={'persistent' if sys.stderr.isatty() else args.storage}" ,
         *args.mkosi_args,
         'qemu',
     ]

test/meson.build

@@ -375,6 +375,7 @@ foreach test_number, dirname : integration_tests
         test_params = {
                 'mkosi_args' : [],
                 'timeout' : 600,
+                'storage': 'volatile',
         }
 
         # TODO: This fs.exists call isn't included in rebuild logic
@@ -389,6 +390,7 @@ foreach test_number, dirname : integration_tests
                 '--meson-build-dir', meson.project_build_root(),
                 '--test-name', dirname,
                 '--test-number', test_number,
+                '--storage', test_params['storage'],
                 '--',
         ] + test_params['mkosi_args']