package rbd import ( "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestRBDError(t *testing.T) { err := getError(0) assert.NoError(t, err) err = getError(-39) // NOTEMPTY (image still has a snapshot) assert.Error(t, err) assert.Equal(t, err.Error(), "rbd: ret=39, Directory not empty") errno, ok := err.(interface{ Errno() int }) assert.True(t, ok) require.NotNil(t, errno) assert.Equal(t, errno.Errno(), -39) err = getError(345) // no such errno assert.Error(t, err) assert.Equal(t, err.Error(), "rbd: ret=345") }