github.com/blixtra/nomad@v0.7.2-0.20171221000451-da9a1d7bb050/command/node_drain_test.go (about)

     1  package command
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  	"testing"
     7  
     8  	"github.com/hashicorp/nomad/testutil"
     9  	"github.com/mitchellh/cli"
    10  	"github.com/posener/complete"
    11  	"github.com/stretchr/testify/assert"
    12  )
    13  
    14  func TestNodeDrainCommand_Implements(t *testing.T) {
    15  	t.Parallel()
    16  	var _ cli.Command = &NodeDrainCommand{}
    17  }
    18  
    19  func TestNodeDrainCommand_Fails(t *testing.T) {
    20  	t.Parallel()
    21  	srv, _, url := testServer(t, false, nil)
    22  	defer srv.Shutdown()
    23  
    24  	ui := new(cli.MockUi)
    25  	cmd := &NodeDrainCommand{Meta: Meta{Ui: ui}}
    26  
    27  	// Fails on misuse
    28  	if code := cmd.Run([]string{"some", "bad", "args"}); code != 1 {
    29  		t.Fatalf("expected exit code 1, got: %d", code)
    30  	}
    31  	if out := ui.ErrorWriter.String(); !strings.Contains(out, cmd.Help()) {
    32  		t.Fatalf("expected help output, got: %s", out)
    33  	}
    34  	ui.ErrorWriter.Reset()
    35  
    36  	// Fails on connection failure
    37  	if code := cmd.Run([]string{"-address=nope", "-enable", "12345678-abcd-efab-cdef-123456789abc"}); code != 1 {
    38  		t.Fatalf("expected exit code 1, got: %d", code)
    39  	}
    40  	if out := ui.ErrorWriter.String(); !strings.Contains(out, "Error toggling") {
    41  		t.Fatalf("expected failed toggle error, got: %s", out)
    42  	}
    43  	ui.ErrorWriter.Reset()
    44  
    45  	// Fails on non-existent node
    46  	if code := cmd.Run([]string{"-address=" + url, "-enable", "12345678-abcd-efab-cdef-123456789abc"}); code != 1 {
    47  		t.Fatalf("expected exit 1, got: %d", code)
    48  	}
    49  	if out := ui.ErrorWriter.String(); !strings.Contains(out, "No node(s) with prefix or id") {
    50  		t.Fatalf("expected not exist error, got: %s", out)
    51  	}
    52  	ui.ErrorWriter.Reset()
    53  
    54  	// Fails if both enable and disable specified
    55  	if code := cmd.Run([]string{"-enable", "-disable", "12345678-abcd-efab-cdef-123456789abc"}); code != 1 {
    56  		t.Fatalf("expected exit 1, got: %d", code)
    57  	}
    58  	if out := ui.ErrorWriter.String(); !strings.Contains(out, cmd.Help()) {
    59  		t.Fatalf("expected help output, got: %s", out)
    60  	}
    61  	ui.ErrorWriter.Reset()
    62  
    63  	// Fails if neither enable or disable specified
    64  	if code := cmd.Run([]string{"12345678-abcd-efab-cdef-123456789abc"}); code != 1 {
    65  		t.Fatalf("expected exit 1, got: %d", code)
    66  	}
    67  	if out := ui.ErrorWriter.String(); !strings.Contains(out, cmd.Help()) {
    68  		t.Fatalf("expected help output, got: %s", out)
    69  	}
    70  	ui.ErrorWriter.Reset()
    71  
    72  	// Fail on identifier with too few characters
    73  	if code := cmd.Run([]string{"-address=" + url, "-enable", "1"}); code != 1 {
    74  		t.Fatalf("expected exit 1, got: %d", code)
    75  	}
    76  	if out := ui.ErrorWriter.String(); !strings.Contains(out, "must contain at least two characters.") {
    77  		t.Fatalf("expected too few characters error, got: %s", out)
    78  	}
    79  	ui.ErrorWriter.Reset()
    80  
    81  	// Identifiers with uneven length should produce a query result
    82  	if code := cmd.Run([]string{"-address=" + url, "-enable", "123"}); code != 1 {
    83  		t.Fatalf("expected exit 1, got: %d", code)
    84  	}
    85  	if out := ui.ErrorWriter.String(); !strings.Contains(out, "No node(s) with prefix or id") {
    86  		t.Fatalf("expected not exist error, got: %s", out)
    87  	}
    88  }
    89  
    90  func TestNodeDrainCommand_AutocompleteArgs(t *testing.T) {
    91  	assert := assert.New(t)
    92  	t.Parallel()
    93  
    94  	srv, client, url := testServer(t, true, nil)
    95  	defer srv.Shutdown()
    96  
    97  	// Wait for a node to appear
    98  	var nodeID string
    99  	testutil.WaitForResult(func() (bool, error) {
   100  		nodes, _, err := client.Nodes().List(nil)
   101  		if err != nil {
   102  			return false, err
   103  		}
   104  		if len(nodes) == 0 {
   105  			return false, fmt.Errorf("missing node")
   106  		}
   107  		nodeID = nodes[0].ID
   108  		return true, nil
   109  	}, func(err error) {
   110  		t.Fatalf("err: %s", err)
   111  	})
   112  
   113  	ui := new(cli.MockUi)
   114  	cmd := &NodeDrainCommand{Meta: Meta{Ui: ui, flagAddress: url}}
   115  
   116  	prefix := nodeID[:len(nodeID)-5]
   117  	args := complete.Args{Last: prefix}
   118  	predictor := cmd.AutocompleteArgs()
   119  
   120  	res := predictor.Predict(args)
   121  	assert.Equal(1, len(res))
   122  	assert.Equal(nodeID, res[0])
   123  }