Add Service.exists

testinfra/modules/service.py

@@ -33,6 +33,11 @@ def __init__(self, name):
         self.name = name
         super().__init__()
 
+    @property
+    def exists(self):
+        """Test if service is exists"""
+        raise NotImplementedError
+
     @property
     def is_running(self):
         """Test if service is running"""
@@ -169,6 +174,11 @@ def _has_systemd_suffix(self):
         unit_suffix = self.name.split(".")[-1]
         return unit_suffix in self.suffix_list
 
+    @property
+    def exists(self):
+        cmd = self.run_test('systemctl list-unit-files | grep -q"^%s"', self.name)
+        return cmd.rc == 0
+
     @property
     def is_running(self):
         out = self.run_expect([0, 1, 3], "systemctl is-active %s", self.name)
@@ -227,6 +237,10 @@ def systemd_properties(self):
 
 
 class UpstartService(SysvService):
+    @property
+    def exists(self):
+        return self._host.file(f"/etc/init/{self.name}.conf").exists
+
     @property
     def is_enabled(self):
         if (
@@ -269,6 +283,10 @@ def is_enabled(self):
 
 
 class FreeBSDService(Service):
+    @property
+    def exists(self):
+        return self._host.file(f"/etc/rc.d/{self.name}").exists
+
     @property
     def is_running(self):
         return self.run_test("service %s onestatus", self.name).rc == 0
@@ -285,6 +303,10 @@ def is_enabled(self):
 
 
 class OpenBSDService(Service):
+    @property
+    def exists(self):
+        return self._host.file(f"/etc/rc.d/{self.name}").exists
+
     @property
     def is_running(self):
         return self.run_test("/etc/rc.d/%s check", self.name).rc == 0
@@ -301,6 +323,10 @@ def is_enabled(self):
 
 
 class NetBSDService(Service):
+    @property
+    def exists(self):
+        return self._host.file(f"/etc/rc.d/{self.name}").exists
+
     @property
     def is_running(self):
         return self.run_test("/etc/rc.d/%s onestatus", self.name).rc == 0
@@ -311,6 +337,13 @@ def is_enabled(self):
 
 
 class WindowsService(Service):
+    @property
+    def exists(self):
+        out = self.check_output(
+            f"Get-Service -Name {self.name} -ErrorAction SilentlyContinue"
+        )
+        return self.name in out
+
     @property
     def is_running(self):
         return (