DockerCLI/command/formatter/volume_test.go

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package formatter
import (
"bytes"
"encoding/json"
"strings"
"testing"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/pkg/testutil/assert"
)
func TestVolumeContext(t *testing.T) {
volumeName := stringid.GenerateRandomID()
var ctx volumeContext
cases := []struct {
volumeCtx volumeContext
expValue string
call func() string
}{
{volumeContext{
v: types.Volume{Name: volumeName},
}, volumeName, ctx.Name},
{volumeContext{
v: types.Volume{Driver: "driver_name"},
}, "driver_name", ctx.Driver},
{volumeContext{
v: types.Volume{Scope: "local"},
}, "local", ctx.Scope},
{volumeContext{
v: types.Volume{Mountpoint: "mountpoint"},
}, "mountpoint", ctx.Mountpoint},
{volumeContext{
v: types.Volume{},
}, "", ctx.Labels},
{volumeContext{
v: types.Volume{Labels: map[string]string{"label1": "value1", "label2": "value2"}},
}, "label1=value1,label2=value2", ctx.Labels},
}
for _, c := range cases {
ctx = c.volumeCtx
v := c.call()
if strings.Contains(v, ",") {
compareMultipleValues(t, v, c.expValue)
} else if v != c.expValue {
t.Fatalf("Expected %s, was %s\n", c.expValue, v)
}
}
}
func TestVolumeContextWrite(t *testing.T) {
cases := []struct {
context Context
expected string
}{
// Errors
{
Context{Format: "{{InvalidFunction}}"},
`Template parsing error: template: :1: function "InvalidFunction" not defined
`,
},
{
Context{Format: "{{nil}}"},
`Template parsing error: template: :1:2: executing "" at <nil>: nil is not a command
`,
},
// Table format
{
Context{Format: NewVolumeFormat("table", false)},
`DRIVER VOLUME NAME
foo foobar_baz
bar foobar_bar
`,
},
{
Context{Format: NewVolumeFormat("table", true)},
`foobar_baz
foobar_bar
`,
},
{
Context{Format: NewVolumeFormat("table {{.Name}}", false)},
`VOLUME NAME
foobar_baz
foobar_bar
`,
},
{
Context{Format: NewVolumeFormat("table {{.Name}}", true)},
`VOLUME NAME
foobar_baz
foobar_bar
`,
},
// Raw Format
{
Context{Format: NewVolumeFormat("raw", false)},
`name: foobar_baz
driver: foo
name: foobar_bar
driver: bar
`,
},
{
Context{Format: NewVolumeFormat("raw", true)},
`name: foobar_baz
name: foobar_bar
`,
},
// Custom Format
{
Context{Format: NewVolumeFormat("{{.Name}}", false)},
`foobar_baz
foobar_bar
`,
},
}
for _, testcase := range cases {
volumes := []*types.Volume{
{Name: "foobar_baz", Driver: "foo"},
{Name: "foobar_bar", Driver: "bar"},
}
out := bytes.NewBufferString("")
testcase.context.Output = out
err := VolumeWrite(testcase.context, volumes)
if err != nil {
assert.Error(t, err, testcase.expected)
} else {
assert.Equal(t, out.String(), testcase.expected)
}
}
}
func TestVolumeContextWriteJSON(t *testing.T) {
volumes := []*types.Volume{
{Driver: "foo", Name: "foobar_baz"},
{Driver: "bar", Name: "foobar_bar"},
}
expectedJSONs := []map[string]interface{}{
{"Driver": "foo", "Labels": "", "Links": "N/A", "Mountpoint": "", "Name": "foobar_baz", "Scope": "", "Size": "N/A"},
{"Driver": "bar", "Labels": "", "Links": "N/A", "Mountpoint": "", "Name": "foobar_bar", "Scope": "", "Size": "N/A"},
}
out := bytes.NewBufferString("")
err := VolumeWrite(Context{Format: "{{json .}}", Output: out}, volumes)
if err != nil {
t.Fatal(err)
}
for i, line := range strings.Split(strings.TrimSpace(out.String()), "\n") {
t.Logf("Output: line %d: %s", i, line)
var m map[string]interface{}
if err := json.Unmarshal([]byte(line), &m); err != nil {
t.Fatal(err)
}
assert.DeepEqual(t, m, expectedJSONs[i])
}
}
func TestVolumeContextWriteJSONField(t *testing.T) {
volumes := []*types.Volume{
{Driver: "foo", Name: "foobar_baz"},
{Driver: "bar", Name: "foobar_bar"},
}
out := bytes.NewBufferString("")
err := VolumeWrite(Context{Format: "{{json .Name}}", Output: out}, volumes)
if err != nil {
t.Fatal(err)
}
for i, line := range strings.Split(strings.TrimSpace(out.String()), "\n") {
t.Logf("Output: line %d: %s", i, line)
var s string
if err := json.Unmarshal([]byte(line), &s); err != nil {
t.Fatal(err)
}
assert.Equal(t, s, volumes[i].Name)
}
}