frostfs-sdk-go/netmap/policy_test.go

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package netmap
import (
"errors"
"strconv"
"testing"
"github.com/nspcc-dev/neofs-api-go/v2/netmap"
subnetid "github.com/nspcc-dev/neofs-sdk-go/subnet/id"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const subnetAttrPrefix = "__NEOFS_SUBNET"
func subnetAttrName(subnet uint32) string {
return subnetAttrPrefix + "." +
strconv.FormatUint(uint64(subnet), 10) + ".ENABLED"
}
func TestPlacementPolicy_Subnet(t *testing.T) {
nodes := []NodeInfo{
nodeInfoFromAttributes("ID", "0", "City", "Paris"),
nodeInfoFromAttributes("ID", "1", "City", "Paris"),
nodeInfoFromAttributes("ID", "2", "City", "London"),
nodeInfoFromAttributes("ID", "3", "City", "London"),
nodeInfoFromAttributes("ID", "4", "City", "Toronto"),
nodeInfoFromAttributes("ID", "5", "City", "Toronto"),
nodeInfoFromAttributes("ID", "6", "City", "Tokyo"),
nodeInfoFromAttributes("ID", "7", "City", "Tokyo"),
}
var id subnetid.ID
nodes[0].ExitSubnet(id)
id.SetNumber(1)
nodes[2].EnterSubnet(id)
nodes[4].EnterSubnet(id)
id.SetNumber(2)
nodes[5].EnterSubnet(id)
nodes[6].EnterSubnet(id)
nodes[7].EnterSubnet(id)
nm, err := NewNetmap(NodesFromInfo(nodes))
require.NoError(t, err)
t.Run("select 2 nodes from the default subnet in Paris", func(t *testing.T) {
p := newPlacementPolicy(0,
[]*Replica{newReplica(1, "S")},
[]*Selector{newSelector("S", "City", ClauseSame, 2, "F")},
[]*Filter{newFilter("F", "City", "Paris", OpEQ)})
_, err := nm.GetContainerNodes(p, nil)
require.True(t, errors.Is(err, ErrNotEnoughNodes), "got: %v", err)
})
t.Run("select 2 nodes from the default subnet in London", func(t *testing.T) {
p := newPlacementPolicy(0,
[]*Replica{newReplica(1, "S")},
[]*Selector{newSelector("S", "City", ClauseSame, 2, "F")},
[]*Filter{newFilter("F", "City", "London", OpEQ)})
v, err := nm.GetContainerNodes(p, nil)
require.NoError(t, err)
nodes := v.Flatten()
require.Equal(t, 2, len(nodes))
for _, n := range v.Flatten() {
id := n.Attribute("ID")
require.Contains(t, []string{"2", "3"}, id)
}
})
t.Run("select 2 nodes from the default subnet in Toronto", func(t *testing.T) {
p := newPlacementPolicy(0,
[]*Replica{newReplica(1, "S")},
[]*Selector{newSelector("S", "City", ClauseSame, 2, "F")},
[]*Filter{newFilter("F", "City", "Toronto", OpEQ)})
v, err := nm.GetContainerNodes(p, nil)
require.NoError(t, err)
nodes := v.Flatten()
require.Equal(t, 2, len(nodes))
for _, n := range v.Flatten() {
id := n.Attribute("ID")
require.Contains(t, []string{"4", "5"}, id)
}
})
t.Run("select 3 nodes from the non-default subnet", func(t *testing.T) {
p := newPlacementPolicy(0,
[]*Replica{newReplica(3, "")},
nil, nil)
p.SetSubnetID(newSubnetID(2))
v, err := nm.GetContainerNodes(p, nil)
require.NoError(t, err)
nodes := v.Flatten()
require.Equal(t, 3, len(nodes))
for _, n := range v.Flatten() {
id := n.Attribute("ID")
require.Contains(t, []string{"5", "6", "7"}, id)
}
})
t.Run("select nodes from the subnet via filter", func(t *testing.T) {
p := newPlacementPolicy(0,
[]*Replica{newReplica(1, "")},
nil,
[]*Filter{newFilter(MainFilterName, subnetAttrName(2), "True", OpEQ, nil)})
_, err := nm.GetContainerNodes(p, nil)
require.Error(t, err)
})
}
func TestPlacementPolicy_CBFWithEmptySelector(t *testing.T) {
nodes := []NodeInfo{
nodeInfoFromAttributes("ID", "1", "Attr", "Same"),
nodeInfoFromAttributes("ID", "2", "Attr", "Same"),
nodeInfoFromAttributes("ID", "3", "Attr", "Same"),
nodeInfoFromAttributes("ID", "4", "Attr", "Same"),
}
p1 := newPlacementPolicy(0,
[]*Replica{newReplica(2, "")},
nil, // selectors
nil, // filters
)
p2 := newPlacementPolicy(3,
[]*Replica{newReplica(2, "")},
nil, // selectors
nil, // filters
)
p3 := newPlacementPolicy(3,
[]*Replica{newReplica(2, "X")},
[]*Selector{newSelector("X", "", ClauseDistinct, 2, "*")},
nil, // filters
)
p4 := newPlacementPolicy(3,
[]*Replica{newReplica(2, "X")},
[]*Selector{newSelector("X", "Attr", ClauseSame, 2, "*")},
nil, // filters
)
nm, err := NewNetmap(NodesFromInfo(nodes))
require.NoError(t, err)
v, err := nm.GetContainerNodes(p1, nil)
require.NoError(t, err)
assert.Len(t, v.Flatten(), 4)
v, err = nm.GetContainerNodes(p2, nil)
require.NoError(t, err)
assert.Len(t, v.Flatten(), 4)
v, err = nm.GetContainerNodes(p3, nil)
require.NoError(t, err)
assert.Len(t, v.Flatten(), 4)
v, err = nm.GetContainerNodes(p4, nil)
require.NoError(t, err)
assert.Len(t, v.Flatten(), 4)
}
func TestPlacementPolicyFromV2(t *testing.T) {
pV2 := new(netmap.PlacementPolicy)
pV2.SetReplicas([]*netmap.Replica{
testReplica().ToV2(),
testReplica().ToV2(),
})
pV2.SetContainerBackupFactor(3)
pV2.SetSelectors([]*netmap.Selector{
testSelector().ToV2(),
testSelector().ToV2(),
})
pV2.SetFilters([]*netmap.Filter{
testFilter().ToV2(),
testFilter().ToV2(),
})
p := NewPlacementPolicyFromV2(pV2)
require.Equal(t, pV2, p.ToV2())
}
func TestPlacementPolicy_Replicas(t *testing.T) {
p := NewPlacementPolicy()
rs := []*Replica{testReplica(), testReplica()}
p.SetReplicas(rs...)
require.Equal(t, rs, p.Replicas())
}
func TestPlacementPolicy_ContainerBackupFactor(t *testing.T) {
p := NewPlacementPolicy()
f := uint32(3)
p.SetContainerBackupFactor(f)
require.Equal(t, f, p.ContainerBackupFactor())
}
func TestPlacementPolicy_Selectors(t *testing.T) {
p := NewPlacementPolicy()
ss := []*Selector{testSelector(), testSelector()}
p.SetSelectors(ss...)
require.Equal(t, ss, p.Selectors())
}
func TestPlacementPolicy_Filters(t *testing.T) {
p := NewPlacementPolicy()
fs := []*Filter{testFilter(), testFilter()}
p.SetFilters(fs...)
require.Equal(t, fs, p.Filters())
}
func TestPlacementPolicyEncoding(t *testing.T) {
p := newPlacementPolicy(3, nil, nil, nil)
t.Run("binary", func(t *testing.T) {
data, err := p.Marshal()
require.NoError(t, err)
p2 := NewPlacementPolicy()
require.NoError(t, p2.Unmarshal(data))
require.Equal(t, p, p2)
})
t.Run("json", func(t *testing.T) {
data, err := p.MarshalJSON()
require.NoError(t, err)
p2 := NewPlacementPolicy()
require.NoError(t, p2.UnmarshalJSON(data))
require.Equal(t, p, p2)
})
}
func TestNewPlacementPolicy(t *testing.T) {
t.Run("nil", func(t *testing.T) {
var x *PlacementPolicy
require.Nil(t, x.ToV2())
})
t.Run("default values", func(t *testing.T) {
pp := NewPlacementPolicy()
// check initial values
require.Nil(t, pp.Replicas())
require.Nil(t, pp.Filters())
require.Nil(t, pp.Selectors())
require.Zero(t, pp.ContainerBackupFactor())
// convert to v2 message
ppV2 := pp.ToV2()
require.Nil(t, ppV2.GetReplicas())
require.Nil(t, ppV2.GetFilters())
require.Nil(t, ppV2.GetSelectors())
require.Zero(t, ppV2.GetContainerBackupFactor())
})
}
func TestNewPlacementPolicyFromV2(t *testing.T) {
t.Run("from nil", func(t *testing.T) {
var x *netmap.PlacementPolicy
require.Nil(t, NewPlacementPolicyFromV2(x))
})
}