Add support for retrieving system service --timeout

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

test/e2e/config/containers.conf

@@ -59,6 +59,7 @@ no_hosts=true
 [engine]
 
 network_cmd_options=["allow_host_loopback=true"]
+service_timeout=1234
 
 # We need to ensure each test runs on a separate plugin instance...
 # For now, let's just make a bunch of plugin paths and have each test use one.

test/e2e/containers_conf_test.go

@@ -444,4 +444,12 @@ var _ = Describe("Podman run", func() {
 		Expect(session).Should(Exit(0))
 		Expect(session.ErrorToString()).To(ContainSubstring("invalid image_copy_tmp_dir"))
 	})
+
+	It("podman system sevice --help shows (default 20)", func() {
+		SkipIfRemote("this test is only for local")
+		result := podmanTest.Podman([]string{"system", "service", "--help"})
+		result.WaitWithDefaultTimeout()
+		Expect(result).Should(Exit(0))
+		Expect(result.OutputToString()).To(ContainSubstring("(default 1234)"))
+	})
 })