test/systemd_unit_create: Wants, Requires, After

Add test values for Wants, Requires, and After.
Adding multiple values to test that arrays work and made sure they're
all different.
The units need to be valid, real unit names otherwise the
'systemd-analyze verify' check will fail.

stages/test/test_systemd_unit_create.py

@@ -66,7 +66,20 @@ def test_systemd_unit_create(tmp_path, stage_module, unit_type, unit_path, expec
                 ],
                 "ConditionPathIsDirectory": [
                     "|!/etc/mydir"
-                ]
+                ],
+                # need to use real units otherwise the validation will fail
+                "Wants": [
+                    "basic.target",
+                    "sysinit.target",
+                ],
+                "Requires": [
+                    "paths.target",
+                    "sockets.target",
+                ],
+                "After": [
+                    "sysinit.target",
+                    "default.target",
+                ],
             },
             "Service": {
                 "Type": "oneshot",
@@ -112,6 +125,12 @@ def test_systemd_unit_create(tmp_path, stage_module, unit_type, unit_path, expec
     DefaultDependencies=False
     ConditionPathExists=|!/etc/myfile
     ConditionPathIsDirectory=|!/etc/mydir
+    Wants=basic.target
+    Wants=sysinit.target
+    Requires=paths.target
+    Requires=sockets.target
+    After=sysinit.target
+    After=default.target
 
     [Service]
     Type=oneshot