open-nomad/command/server_members_test.go

143 lines
3.4 KiB
Go

package command
import (
"encoding/json"
"fmt"
"strings"
"testing"
"github.com/hashicorp/nomad/api"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/command/agent"
"github.com/mitchellh/cli"
"github.com/shoenig/test/must"
)
func TestServerMembersCommand_Implements(t *testing.T) {
ci.Parallel(t)
var _ cli.Command = &ServerMembersCommand{}
}
func TestServerMembersCommand_Run(t *testing.T) {
ci.Parallel(t)
srv, client, url := testServer(t, false, nil)
defer srv.Shutdown()
ui := cli.NewMockUi()
cmd := &ServerMembersCommand{Meta: Meta{Ui: ui}}
// Get our own node name
name, err := client.Agent().NodeName()
must.NoError(t, err)
// Query the members
code := cmd.Run([]string{"-address=" + url})
if out := ui.OutputWriter.String(); !strings.Contains(out, name) {
t.Fatalf("expected %q in output, got: %s", name, out)
}
ui.OutputWriter.Reset()
// Query members with verbose output
code = cmd.Run([]string{"-address=" + url, "-verbose"})
must.Zero(t, code)
// Still support previous detailed flag
code = cmd.Run([]string{"-address=" + url, "-detailed"})
must.Zero(t, code)
must.StrContains(t, ui.OutputWriter.String(), "Tags")
ui.OutputWriter.Reset()
// List json
code = cmd.Run([]string{"-address=" + url, "-json"})
must.Zero(t, code)
outJson := []api.AgentMember{}
err = json.Unmarshal(ui.OutputWriter.Bytes(), &outJson)
must.NoError(t, err)
ui.OutputWriter.Reset()
// Go template to format the output
code = cmd.Run([]string{"-address=" + url, "-t", "{{range .}}{{ .Status }}{{end}}"})
must.Zero(t, code)
out := ui.OutputWriter.String()
must.StrContains(t, out, "alive")
ui.ErrorWriter.Reset()
}
func TestMembersCommand_Fails(t *testing.T) {
ci.Parallel(t)
ui := cli.NewMockUi()
cmd := &ServerMembersCommand{Meta: Meta{Ui: ui}}
// Fails on misuse
code := cmd.Run([]string{"some", "bad", "args"})
must.One(t, code)
must.StrContains(t, ui.ErrorWriter.String(), commandErrorText(cmd))
ui.ErrorWriter.Reset()
// Fails on connection failure
code = cmd.Run([]string{"-address=nope"})
must.One(t, code)
must.StrContains(t, ui.ErrorWriter.String(), "Error querying servers")
}
// Tests that a single server region that left should still
// not return an error and list other members in other regions
func TestServerMembersCommand_MultiRegion_Leave(t *testing.T) {
ci.Parallel(t)
config1 := func(c *agent.Config) {
c.Region = "r1"
c.Datacenter = "d1"
}
srv1, client1, url := testServer(t, false, config1)
defer srv1.Shutdown()
config2 := func(c *agent.Config) {
c.Region = "r2"
c.Datacenter = "d2"
}
srv2, _, _ := testServer(t, false, config2)
defer srv2.Shutdown()
// Join with srv1
addr := fmt.Sprintf("127.0.0.1:%d",
srv1.Agent.Server().GetConfig().SerfConfig.MemberlistConfig.BindPort)
_, err := srv2.Agent.Server().Join([]string{addr})
must.NoError(t, err)
ui := cli.NewMockUi()
cmd := &ServerMembersCommand{Meta: Meta{Ui: ui}}
// Get our own node name
name, err := client1.Agent().NodeName()
must.NoError(t, err)
// Query the members
code := cmd.Run([]string{"-address=" + url})
must.Zero(t, code)
must.StrContains(t, ui.OutputWriter.String(), name)
ui.OutputWriter.Reset()
// Make one of the servers leave
srv2.Agent.Leave()
// Query again, should still contain expected output
code = cmd.Run([]string{"-address=" + url})
must.Zero(t, code)
must.StrContains(t, ui.OutputWriter.String(), name)
}