tests for autocomplete functions

command/node_status_test.go

@@ -8,6 +8,8 @@ import (
 	"github.com/hashicorp/nomad/command/agent"
 	"github.com/hashicorp/nomad/testutil"
 	"github.com/mitchellh/cli"
+	"github.com/posener/complete"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestNodeStatusCommand_Implements(t *testing.T) {
@@ -213,3 +215,38 @@ func TestNodeStatusCommand_Fails(t *testing.T) {
 		t.Fatalf("expected getting formatter error, got: %s", out)
 	}
 }
+
+func TestNodeStatusCommand_AutocompleteArgs(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+
+	srv, client, url := testServer(t, true, nil)
+	defer srv.Shutdown()
+
+	// Wait for a node to appear
+	var nodeID string
+	testutil.WaitForResult(func() (bool, error) {
+		nodes, _, err := client.Nodes().List(nil)
+		if err != nil {
+			return false, err
+		}
+		if len(nodes) == 0 {
+			return false, fmt.Errorf("missing node")
+		}
+		nodeID = nodes[0].ID
+		return true, nil
+	}, func(err error) {
+		t.Fatalf("err: %s", err)
+	})
+
+	ui := new(cli.MockUi)
+	cmd := &NodeStatusCommand{Meta: Meta{Ui: ui, flagAddress: url}}
+
+	prefix := nodeID[:len(nodeID)-5]
+	args := complete.Args{Last: prefix}
+	predictor := cmd.AutocompleteArgs()
+
+	res := predictor.Predict(args)
+	assert.Equal(1, len(res))
+	assert.Equal(nodeID, res[0])
+}