control: Implement service command 'stop,restart,status'. (#2883)

- stop - stops all the servers.
- restart - restart all the servers.
- status - prints status of storage info about the cluster.

cmd/control-mains_test.go

@@ -72,12 +72,17 @@ func TestControlLockMain(t *testing.T) {
 	}
 }
 
-// Test to call shutdownControl() in control-shutdown-main.go
-func TestControlShutdownMain(t *testing.T) {
+// Test to call serviceControl(stop) in control-service-main.go
+func TestControlServiceStopMain(t *testing.T) {
 	// create cli app for testing
 	app := cli.NewApp()
 	app.Commands = []cli.Command{controlCmd}
 
+	// Initialize done channel specifically for each tests.
+	globalServiceDoneCh = make(chan struct{}, 1)
+	// Initialize signal channel specifically for each tests.
+	globalServiceSignalCh = make(chan serviceSignal, 1)
+
 	// start test server
 	testServer := StartTestServer(t, "XL")
 
@@ -88,12 +93,95 @@ func TestControlShutdownMain(t *testing.T) {
 	url := testServer.Server.URL
 
 	// create args to call
-	args := []string{"./minio", "control", "shutdown", url}
+	args := []string{"./minio", "control", "service", "stop", url}
 
 	// run app
 	err := app.Run(args)
 	if err != nil {
-		t.Errorf("Control-Shutdown-Main test failed with - %s", err)
+		t.Errorf("Control-Service-Stop-Main test failed with - %s", err)
+	}
+}
+
+// Test to call serviceControl(status) in control-service-main.go
+func TestControlServiceStatusMain(t *testing.T) {
+	// create cli app for testing
+	app := cli.NewApp()
+	app.Commands = []cli.Command{controlCmd}
+
+	// Initialize done channel specifically for each tests.
+	globalServiceDoneCh = make(chan struct{}, 1)
+	// Initialize signal channel specifically for each tests.
+	globalServiceSignalCh = make(chan serviceSignal, 1)
+
+	// start test server
+	testServer := StartTestServer(t, "XL")
+
+	// schedule cleanup at the end
+	defer testServer.Stop()
+
+	// fetch http server endpoint
+	url := testServer.Server.URL
+
+	// Create args to call
+	args := []string{"./minio", "control", "service", "status", url}
+
+	// run app
+	err := app.Run(args)
+	if err != nil {
+		t.Errorf("Control-Service-Status-Main test failed with - %s", err)
+	}
+
+	// Create args to call
+	args = []string{"./minio", "control", "service", "stop", url}
+
+	// run app
+	err = app.Run(args)
+	if err != nil {
+		t.Errorf("Control-Service-Stop-Main test failed with - %s", err)
+	}
+}
+
+// Test to call serviceControl(restart) in control-service-main.go
+func TestControlServiceRestartMain(t *testing.T) {
+	// create cli app for testing
+	app := cli.NewApp()
+	app.Commands = []cli.Command{controlCmd}
+
+	// Initialize done channel specifically for each tests.
+	globalServiceDoneCh = make(chan struct{}, 1)
+	// Initialize signal channel specifically for each tests.
+	globalServiceSignalCh = make(chan serviceSignal, 1)
+
+	// start test server
+	testServer := StartTestServer(t, "XL")
+
+	// schedule cleanup at the end
+	defer testServer.Stop()
+
+	// fetch http server endpoint
+	url := testServer.Server.URL
+
+	// Create args to call
+	args := []string{"./minio", "control", "service", "restart", url}
+
+	// run app
+	err := app.Run(args)
+	if err != nil {
+		t.Errorf("Control-Service-Restart-Main test failed with - %s", err)
+	}
+
+	// Initialize done channel specifically for each tests.
+	globalServiceDoneCh = make(chan struct{}, 1)
+	// Initialize signal channel specifically for each tests.
+	globalServiceSignalCh = make(chan serviceSignal, 1)
+
+	// Create args to call
+	args = []string{"./minio", "control", "service", "stop", url}
+
+	// run app
+	err = app.Run(args)
+	if err != nil {
+		t.Errorf("Control-Service-Stop-Main test failed with - %s", err)
 	}
 }