open-nomad/command/node_pool_init_test.go

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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package command
import (
"os"
"path"
"testing"
"github.com/mitchellh/cli"
"github.com/shoenig/test/must"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/command/asset"
)
func TestNodePoolInitCommand_Implements(t *testing.T) {
ci.Parallel(t)
var _ cli.Command = &NodePoolInitCommand{}
}
func TestNodePoolInitCommand_Run(t *testing.T) {
ci.Parallel(t)
dir := t.TempDir()
origDir, err := os.Getwd()
must.NoError(t, err)
err = os.Chdir(dir)
must.NoError(t, err)
t.Cleanup(func() { os.Chdir(origDir) })
t.Run("hcl", func(t *testing.T) {
ci.Parallel(t)
dir := dir
ui := cli.NewMockUi()
cmd := &NodePoolInitCommand{Meta: Meta{Ui: ui}}
// Fails on misuse
ec := cmd.Run([]string{"some", "bad", "args"})
must.Eq(t, 1, ec)
must.StrContains(t, ui.ErrorWriter.String(), commandErrorText(cmd))
must.Eq(t, "", ui.OutputWriter.String())
reset(ui)
// Works if the file doesn't exist
ec = cmd.Run([]string{"-out", "hcl"})
must.Eq(t, "", ui.ErrorWriter.String())
must.Eq(t, "Example node pool specification written to pool.nomad.hcl\n", ui.OutputWriter.String())
must.Zero(t, ec)
reset(ui)
t.Cleanup(func() { os.Remove(path.Join(dir, "pool.nomad.hcl")) })
content, err := os.ReadFile(DefaultHclNodePoolInitName)
must.NoError(t, err)
must.Eq(t, asset.NodePoolSpec, content)
// Fails if the file exists
ec = cmd.Run([]string{"-out", "hcl"})
must.StrContains(t, ui.ErrorWriter.String(), "exists")
must.Eq(t, "", ui.OutputWriter.String())
must.Eq(t, 1, ec)
reset(ui)
// Works if file is passed
ec = cmd.Run([]string{"-out", "hcl", "myTest.hcl"})
must.Eq(t, "", ui.ErrorWriter.String())
must.Eq(t, "Example node pool specification written to myTest.hcl\n", ui.OutputWriter.String())
must.Zero(t, ec)
reset(ui)
t.Cleanup(func() { os.Remove(path.Join(dir, "myTest.hcl")) })
content, err = os.ReadFile("myTest.hcl")
must.NoError(t, err)
must.Eq(t, asset.NodePoolSpec, content)
})
t.Run("json", func(t *testing.T) {
ci.Parallel(t)
dir := dir
ui := cli.NewMockUi()
cmd := &NodePoolInitCommand{Meta: Meta{Ui: ui}}
// Fails on misuse
code := cmd.Run([]string{"some", "bad", "args"})
must.Eq(t, 1, code)
must.StrContains(t, ui.ErrorWriter.String(), "This command takes no arguments or one")
must.Eq(t, "", ui.OutputWriter.String())
reset(ui)
// Works if the file doesn't exist
code = cmd.Run([]string{"-out", "json"})
must.StrContains(t, ui.OutputWriter.String(), "Example node pool specification written to pool.nomad.json\n")
must.Zero(t, code)
reset(ui)
t.Cleanup(func() { os.Remove(path.Join(dir, "pool.nomad.json")) })
content, err := os.ReadFile(DefaultJsonNodePoolInitName)
must.NoError(t, err)
must.Eq(t, asset.NodePoolSpecJSON, content)
// Fails if the file exists
code = cmd.Run([]string{"-out", "json"})
must.StrContains(t, ui.ErrorWriter.String(), "exists")
must.Eq(t, "", ui.OutputWriter.String())
must.Eq(t, 1, code)
reset(ui)
// Works if file is passed
code = cmd.Run([]string{"-out", "json", "myTest.json"})
must.StrContains(t, ui.OutputWriter.String(), "Example node pool specification written to myTest.json\n")
must.Zero(t, code)
reset(ui)
t.Cleanup(func() { os.Remove(path.Join(dir, "myTest.json")) })
content, err = os.ReadFile("myTest.json")
must.NoError(t, err)
must.Eq(t, asset.NodePoolSpecJSON, content)
})
}