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vsphere-influxdb-go/vendor/github.com/influxdata/influxdb/pkg/rhh/rhh_test.go

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2017-10-25 22:52:40 +02:00
package rhh_test
import (
"bytes"
"math/rand"
"reflect"
"testing"
"testing/quick"
"github.com/influxdata/influxdb/pkg/rhh"
)
// Ensure hash map can perform basic get/put operations.
func TestHashMap(t *testing.T) {
m := rhh.NewHashMap(rhh.DefaultOptions)
m.Put([]byte("foo"), []byte("bar"))
m.Put([]byte("baz"), []byte("bat"))
// Verify values can be retrieved.
if v := m.Get([]byte("foo")); !bytes.Equal(v.([]byte), []byte("bar")) {
t.Fatalf("unexpected value: %s", v)
}
if v := m.Get([]byte("baz")); !bytes.Equal(v.([]byte), []byte("bat")) {
t.Fatalf("unexpected value: %s", v)
}
// Overwrite field & verify.
m.Put([]byte("foo"), []byte("XXX"))
if v := m.Get([]byte("foo")); !bytes.Equal(v.([]byte), []byte("XXX")) {
t.Fatalf("unexpected value: %s", v)
}
}
// Ensure hash map can insert random data.
func TestHashMap_Quick(t *testing.T) {
if testing.Short() {
t.Skip("short mode, skipping")
}
if err := quick.Check(func(keys, values [][]byte) bool {
m := rhh.NewHashMap(rhh.Options{Capacity: 1000, LoadFactor: 90})
h := make(map[string][]byte)
// Insert all key/values into both maps.
for i := range keys {
key, value := keys[i], values[i]
h[string(key)] = value
m.Put(key, value)
}
// Verify the maps are equal.
for k, v := range h {
if mv := m.Get([]byte(k)); !bytes.Equal(mv.([]byte), v) {
t.Fatalf("value mismatch:\nkey=%x\ngot=%x\nexp=%x\n\n", []byte(k), mv, v)
}
}
return true
}, &quick.Config{
Values: func(values []reflect.Value, rand *rand.Rand) {
n := rand.Intn(10000)
values[0] = GenerateByteSlices(rand, n)
values[1] = GenerateByteSlices(rand, n)
},
}); err != nil {
t.Fatal(err)
}
}
// GenerateByteSlices returns a random list of byte slices.
func GenerateByteSlices(rand *rand.Rand, n int) reflect.Value {
var a [][]byte
for i := 0; i < n; i++ {
v, _ := quick.Value(reflect.TypeOf(([]byte)(nil)), rand)
a = append(a, v.Interface().([]byte))
}
return reflect.ValueOf(a)
}