frostfs-sdk-go/netmap/json_test.go

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package netmap
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
// TestCase represents collection of placement policy tests for a single node set.
type TestCase struct {
Name string `json:"name"`
Nodes []NodeInfo `json:"nodes"`
Tests map[string]struct {
Policy PlacementPolicy `json:"policy"`
Pivot []byte `json:"pivot,omitempty"`
Result [][]int `json:"result,omitempty"`
Error string `json:"error,omitempty"`
Placement struct {
Pivot []byte
Result [][]int
} `json:"placement,omitempty"`
}
}
var _, _ json.Unmarshaler = new(NodeInfo), new(PlacementPolicy)
func compareNodes(t testing.TB, expected [][]int, nodes nodes, actual [][]NodeInfo) {
require.Equal(t, len(expected), len(actual))
for i := range expected {
require.Equal(t, len(expected[i]), len(actual[i]))
for j, index := range expected[i] {
require.Equal(t, nodes[index], actual[i][j])
}
}
}
func TestPlacementPolicy_Interopability(t *testing.T) {
const testsDir = "./json_tests"
f, err := os.Open(testsDir)
require.NoError(t, err)
ds, err := f.ReadDir(0)
require.NoError(t, err)
for i := range ds {
filename := filepath.Join(testsDir, ds[i].Name())
bs, err := os.ReadFile(filename)
require.NoError(t, err)
var tc TestCase
require.NoError(t, json.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
srcNodes := make([]NodeInfo, len(tc.Nodes))
copy(srcNodes, tc.Nodes)
t.Run(fmt.Sprintf("%s:%s", filename, tc.Name), func(t *testing.T) {
var nm NetMap
nm.SetNodes(tc.Nodes)
for name, tt := range tc.Tests {
t.Run(name, func(t *testing.T) {
v, err := nm.ContainerNodes(tt.Policy, tt.Pivot)
if tt.Result == nil {
require.Error(t, err)
require.Contains(t, err.Error(), tt.Error)
} else {
require.NoError(t, err)
require.Equal(t, srcNodes, tc.Nodes)
compareNodes(t, tt.Result, tc.Nodes, v)
if tt.Placement.Result != nil {
res, err := nm.PlacementVectors(v, tt.Placement.Pivot)
require.NoError(t, err)
compareNodes(t, tt.Placement.Result, tc.Nodes, res)
require.Equal(t, srcNodes, tc.Nodes)
}
}
})
}
})
}
}
func BenchmarkPlacementPolicyInteropability(b *testing.B) {
const testsDir = "./json_tests"
f, err := os.Open(testsDir)
require.NoError(b, err)
ds, err := f.ReadDir(0)
require.NoError(b, err)
for i := range ds {
bs, err := os.ReadFile(filepath.Join(testsDir, ds[i].Name()))
require.NoError(b, err)
var tc TestCase
require.NoError(b, json.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
b.Run(tc.Name, func(b *testing.B) {
var nm NetMap
nm.SetNodes(tc.Nodes)
require.NoError(b, err)
for name, tt := range tc.Tests {
b.Run(name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
b.StartTimer()
v, err := nm.ContainerNodes(tt.Policy, tt.Pivot)
b.StopTimer()
if tt.Result == nil {
require.Error(b, err)
require.Contains(b, err.Error(), tt.Error)
} else {
require.NoError(b, err)
compareNodes(b, tt.Result, tc.Nodes, v)
if tt.Placement.Result != nil {
b.StartTimer()
res, err := nm.PlacementVectors(v, tt.Placement.Pivot)
b.StopTimer()
require.NoError(b, err)
compareNodes(b, tt.Placement.Result, tc.Nodes, res)
}
}
}
})
}
})
}
}
func BenchmarkManySelects(b *testing.B) {
testsFile := filepath.Join("json_tests", "many_selects.json")
bs, err := os.ReadFile(testsFile)
require.NoError(b, err)
var tc TestCase
require.NoError(b, json.Unmarshal(bs, &tc))
tt, ok := tc.Tests["Select"]
require.True(b, ok)
var nm NetMap
nm.SetNodes(tc.Nodes)
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
_, err = nm.ContainerNodes(tt.Policy, tt.Pivot)
if err != nil {
b.FailNow()
}
}
}