frostfs-api-go-pogpp/pkg/netmap/selector_test.go

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package netmap
import (
"errors"
"fmt"
"testing"
"github.com/nspcc-dev/neofs-api-go/v2/netmap"
"github.com/stretchr/testify/require"
)
func TestPlacementPolicy_UnspecifiedClause(t *testing.T) {
p := newPlacementPolicy(1,
[]*netmap.Replica{newReplica(1, "X")},
[]*netmap.Selector{
newSelector("X", "", netmap.Distinct, 4, "*"),
},
nil,
)
nodes := []netmap.NodeInfo{
nodeInfoFromAttributes("ID", "1", "Country", "RU", "City", "St.Petersburg", "SSD", "0"),
nodeInfoFromAttributes("ID", "2", "Country", "RU", "City", "St.Petersburg", "SSD", "1"),
nodeInfoFromAttributes("ID", "3", "Country", "RU", "City", "Moscow", "SSD", "1"),
nodeInfoFromAttributes("ID", "4", "Country", "RU", "City", "Moscow", "SSD", "1"),
}
nm, err := NewNetmap(NodesFromV2(nodes))
require.NoError(t, err)
v, err := nm.GetContainerNodes(p, nil)
require.NoError(t, err)
require.Equal(t, 4, len(v.Flatten()))
}
func TestPlacementPolicy_GetPlacementVectors(t *testing.T) {
p := newPlacementPolicy(2,
[]*netmap.Replica{
newReplica(1, "SPB"),
newReplica(2, "Americas"),
},
[]*netmap.Selector{
newSelector("SPB", "City", netmap.Same, 1, "SPBSSD"),
newSelector("Americas", "City", netmap.Distinct, 2, "Americas"),
},
[]*netmap.Filter{
newFilter("SPBSSD", "", "", netmap.AND,
newFilter("", "Country", "RU", netmap.EQ),
newFilter("", "City", "St.Petersburg", netmap.EQ),
newFilter("", "SSD", "1", netmap.EQ)),
newFilter("Americas", "", "", netmap.OR,
newFilter("", "Continent", "NA", netmap.EQ),
newFilter("", "Continent", "SA", netmap.EQ)),
})
nodes := []netmap.NodeInfo{
nodeInfoFromAttributes("ID", "1", "Country", "RU", "City", "St.Petersburg", "SSD", "0"),
nodeInfoFromAttributes("ID", "2", "Country", "RU", "City", "St.Petersburg", "SSD", "1"),
nodeInfoFromAttributes("ID", "3", "Country", "RU", "City", "Moscow", "SSD", "1"),
nodeInfoFromAttributes("ID", "4", "Country", "RU", "City", "Moscow", "SSD", "1"),
nodeInfoFromAttributes("ID", "5", "Country", "RU", "City", "St.Petersburg", "SSD", "1"),
nodeInfoFromAttributes("ID", "6", "Continent", "NA", "City", "NewYork"),
nodeInfoFromAttributes("ID", "7", "Continent", "AF", "City", "Cairo"),
nodeInfoFromAttributes("ID", "8", "Continent", "AF", "City", "Cairo"),
nodeInfoFromAttributes("ID", "9", "Continent", "SA", "City", "Lima"),
nodeInfoFromAttributes("ID", "10", "Continent", "AF", "City", "Cairo"),
nodeInfoFromAttributes("ID", "11", "Continent", "NA", "City", "NewYork"),
nodeInfoFromAttributes("ID", "12", "Continent", "NA", "City", "LosAngeles"),
nodeInfoFromAttributes("ID", "13", "Continent", "SA", "City", "Lima"),
}
nm, err := NewNetmap(NodesFromV2(nodes))
require.NoError(t, err)
v, err := nm.GetContainerNodes(p, nil)
require.NoError(t, err)
require.Equal(t, 2, len(v.Replicas()))
require.Equal(t, 6, len(v.Flatten()))
require.Equal(t, 2, len(v.Replicas()[0]))
ids := map[string]struct{}{}
for _, ni := range v.Replicas()[0] {
require.Equal(t, "RU", ni.Attribute("Country"))
require.Equal(t, "St.Petersburg", ni.Attribute("City"))
require.Equal(t, "1", ni.Attribute("SSD"))
ids[ni.Attribute("ID")] = struct{}{}
}
require.Equal(t, len(v.Replicas()[0]), len(ids), "not all nodes we distinct")
require.Equal(t, 4, len(v.Replicas()[1])) // 2 cities * 2 HRWB
ids = map[string]struct{}{}
for _, ni := range v.Replicas()[1] {
require.Contains(t, []string{"NA", "SA"}, ni.Attribute("Continent"))
ids[ni.Attribute("ID")] = struct{}{}
}
require.Equal(t, len(v.Replicas()[1]), len(ids), "not all nodes we distinct")
}
func TestPlacementPolicy_ProcessSelectors(t *testing.T) {
p := newPlacementPolicy(2, nil,
[]*netmap.Selector{
newSelector("SameRU", "City", netmap.Same, 2, "FromRU"),
newSelector("DistinctRU", "City", netmap.Distinct, 2, "FromRU"),
newSelector("Good", "Country", netmap.Distinct, 2, "Good"),
newSelector("Main", "Country", netmap.Distinct, 3, "*"),
},
[]*netmap.Filter{
newFilter("FromRU", "Country", "Russia", netmap.EQ),
newFilter("Good", "Rating", "4", netmap.GE),
})
nodes := []netmap.NodeInfo{
nodeInfoFromAttributes("Country", "Russia", "Rating", "1", "City", "SPB"),
nodeInfoFromAttributes("Country", "Germany", "Rating", "5", "City", "Berlin"),
nodeInfoFromAttributes("Country", "Russia", "Rating", "6", "City", "Moscow"),
nodeInfoFromAttributes("Country", "France", "Rating", "4", "City", "Paris"),
nodeInfoFromAttributes("Country", "France", "Rating", "1", "City", "Lyon"),
nodeInfoFromAttributes("Country", "Russia", "Rating", "5", "City", "SPB"),
nodeInfoFromAttributes("Country", "Russia", "Rating", "7", "City", "Moscow"),
nodeInfoFromAttributes("Country", "Germany", "Rating", "3", "City", "Darmstadt"),
nodeInfoFromAttributes("Country", "Germany", "Rating", "7", "City", "Frankfurt"),
nodeInfoFromAttributes("Country", "Russia", "Rating", "9", "City", "SPB"),
nodeInfoFromAttributes("Country", "Russia", "Rating", "9", "City", "SPB"),
}
nm, err := NewNetmap(NodesFromV2(nodes))
require.NoError(t, err)
c := NewContext(nm)
require.NoError(t, c.processFilters(p))
require.NoError(t, c.processSelectors(p))
for _, s := range p.GetSelectors() {
sel := c.Selections[s.GetName()]
s := c.Selectors[s.GetName()]
bucketCount, nodesInBucket := GetNodesCount(p, s)
targ := fmt.Sprintf("selector '%s'", s.GetName())
require.Equal(t, bucketCount, len(sel), targ)
for _, res := range sel {
require.Equal(t, nodesInBucket, len(res), targ)
for j := range res {
require.True(t, c.applyFilter(s.GetFilter(), res[j]), targ)
}
}
}
}
func TestPlacementPolicy_ProcessSelectorsHRW(t *testing.T) {
p := newPlacementPolicy(1, nil,
[]*netmap.Selector{
newSelector("Main", "Country", netmap.Distinct, 3, "*"),
}, nil)
// bucket weight order: RU > DE > FR
nodes := []netmap.NodeInfo{
nodeInfoFromAttributes("Country", "Germany", PriceAttr, "2", CapacityAttr, "10000"),
nodeInfoFromAttributes("Country", "Germany", PriceAttr, "4", CapacityAttr, "1"),
nodeInfoFromAttributes("Country", "France", PriceAttr, "3", CapacityAttr, "10"),
nodeInfoFromAttributes("Country", "Russia", PriceAttr, "2", CapacityAttr, "10000"),
nodeInfoFromAttributes("Country", "Russia", PriceAttr, "1", CapacityAttr, "10000"),
nodeInfoFromAttributes("Country", "Russia", CapacityAttr, "10000"),
nodeInfoFromAttributes("Country", "France", PriceAttr, "100", CapacityAttr, "1"),
nodeInfoFromAttributes("Country", "France", PriceAttr, "7", CapacityAttr, "10000"),
nodeInfoFromAttributes("Country", "Russia", PriceAttr, "2", CapacityAttr, "1"),
}
nm, err := NewNetmap(NodesFromV2(nodes))
require.NoError(t, err)
c := NewContext(nm)
c.setPivot([]byte("containerID"))
c.weightFunc = newWeightFunc(newMaxNorm(10000), newReverseMinNorm(1))
c.aggregator = newMaxAgg
require.NoError(t, c.processFilters(p))
require.NoError(t, c.processSelectors(p))
cnt := c.Selections["Main"]
expected := []Nodes{
{{Index: 4, Capacity: 10000, Price: 1}}, // best RU
{{Index: 0, Capacity: 10000, Price: 2}}, // best DE
{{Index: 7, Capacity: 10000, Price: 7}}, // best FR
}
require.Equal(t, len(expected), len(cnt))
for i := range expected {
require.Equal(t, len(expected[i]), len(cnt[i]))
require.Equal(t, expected[i][0].Index, cnt[i][0].Index)
require.Equal(t, expected[i][0].Capacity, cnt[i][0].Capacity)
require.Equal(t, expected[i][0].Price, cnt[i][0].Price)
}
res, err := nm.GetPlacementVectors(containerNodes(cnt), []byte("objectID"))
require.NoError(t, err)
require.Equal(t, res, cnt)
}
func TestPlacementPolicy_ProcessSelectorsInvalid(t *testing.T) {
testCases := []struct {
name string
p *netmap.PlacementPolicy
err error
}{
{
"MissingSelector",
newPlacementPolicy(2, nil,
[]*netmap.Selector{nil},
[]*netmap.Filter{}),
ErrMissingField,
},
{
"InvalidFilterReference",
newPlacementPolicy(1, nil,
[]*netmap.Selector{newSelector("MyStore", "Country", netmap.Distinct, 1, "FromNL")},
[]*netmap.Filter{newFilter("FromRU", "Country", "Russia", netmap.EQ)}),
ErrFilterNotFound,
},
{
"NotEnoughNodes (backup factor)",
newPlacementPolicy(2, nil,
[]*netmap.Selector{newSelector("MyStore", "Country", netmap.Distinct, 1, "FromRU")},
[]*netmap.Filter{newFilter("FromRU", "Country", "Russia", netmap.EQ)}),
ErrNotEnoughNodes,
},
{
"NotEnoughNodes (buckets)",
newPlacementPolicy(1, nil,
[]*netmap.Selector{newSelector("MyStore", "Country", netmap.Distinct, 2, "FromRU")},
[]*netmap.Filter{newFilter("FromRU", "Country", "Russia", netmap.EQ)}),
ErrNotEnoughNodes,
},
}
nodes := []netmap.NodeInfo{
nodeInfoFromAttributes("Country", "Russia"),
nodeInfoFromAttributes("Country", "Germany"),
nodeInfoFromAttributes(),
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
nm, err := NewNetmap(NodesFromV2(nodes))
require.NoError(t, err)
c := NewContext(nm)
require.NoError(t, c.processFilters(tc.p))
err = c.processSelectors(tc.p)
require.True(t, errors.Is(err, tc.err), "got: %v", err)
})
}
}