go-ceph/rbd/metadata_test.go
John Mulligan e7791c9e06 rbd: add ListMetadata implementing rbd_metadata_list
The function is named ListMetadata but returns a map of all
the metadata assigned to the rbd image. It is named ListMetadata to
match the C librbd api call.

Signed-off-by: John Mulligan <jmulligan@redhat.com>
2020-11-04 14:01:51 +00:00

101 lines
2.5 KiB
Go

package rbd
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestImageMetadata(t *testing.T) {
metadataKey := "mykey"
metadataValue := "myvalue"
conn := radosConnect(t)
poolname := GetUUID()
err := conn.MakePool(poolname)
assert.NoError(t, err)
ioctx, err := conn.OpenIOContext(poolname)
require.NoError(t, err)
name := GetUUID()
err = quickCreate(ioctx, name, testImageSize, testImageOrder)
assert.NoError(t, err)
image := GetImage(ioctx, name)
// Set a metadata key/value on unopen image
err = image.SetMetadata(metadataKey, metadataValue)
assert.Equal(t, err, ErrImageNotOpen)
// Get the metadata value on unopen image
value, err := image.GetMetadata(metadataKey)
assert.Equal(t, err, ErrImageNotOpen)
assert.Equal(t, "", value)
// Remove the metadata key on unopen image
err = image.RemoveMetadata(metadataKey)
assert.Equal(t, err, ErrImageNotOpen)
// check key is removed on unopen image
value, err = image.GetMetadata(metadataKey)
assert.Equal(t, "", value)
assert.Equal(t, err, ErrImageNotOpen)
// check ListMetadata for unopened image
_, err = image.ListMetadata()
assert.Equal(t, err, ErrImageNotOpen)
image, err = OpenImage(ioctx, name, NoSnapshot)
assert.NoError(t, err)
// Set a metadata key/value
err = image.SetMetadata(metadataKey, metadataValue)
assert.NoError(t, err)
// Get the metadata value
value, err = image.GetMetadata(metadataKey)
assert.NoError(t, err)
assert.Equal(t, metadataValue, value)
// List metadata
mm, err := image.ListMetadata()
assert.NoError(t, err)
assert.Len(t, mm, 1)
if assert.Contains(t, mm, metadataKey) {
assert.Equal(t, mm[metadataKey], metadataValue)
}
// Remove the metadata key
err = image.RemoveMetadata(metadataKey)
assert.NoError(t, err)
// check key is removed
value, err = image.GetMetadata(metadataKey)
assert.Equal(t, "", value)
assert.Error(t, err)
// Set some additional metadata values
m1 := map[string]string{
metadataKey: metadataValue,
"k2": "himalayas",
"matterhorn": "alps",
"aconcagua": "andes",
}
for k, v := range m1 {
err = image.SetMetadata(k, v)
assert.NoError(t, err)
}
// Get the metadata value
value, err = image.GetMetadata(metadataKey)
assert.NoError(t, err)
assert.Equal(t, metadataValue, value)
// List metadata
mm, err = image.ListMetadata()
assert.NoError(t, err)
assert.Len(t, mm, 4)
assert.Equal(t, m1, mm)
err = image.Close()
assert.NoError(t, err)
err = image.Remove()
assert.NoError(t, err)
ioctx.Destroy()
conn.DeletePool(poolname)
conn.Shutdown()
}