Merge pull request #17 from ashwin95r/uidassigner

Unit test for uidassigner

server/uidassigner/main_test.go

+package main
+
+import (
+	"io/ioutil"
+	"math"
+	"os"
+	"testing"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/dgraph-io/dgraph/commit"
+	"github.com/dgraph-io/dgraph/posting"
+	"github.com/dgraph-io/dgraph/rdf"
+	"github.com/dgraph-io/dgraph/store"
+	"github.com/dgryski/go-farm"
+)
+
+func TestQuery(t *testing.T) {
+	var numInstances uint64 = 2
+	mod := math.MaxUint64 / numInstances
+	minIdx0 := 0 * mod
+	minIdx1 := 1 * mod
+
+	logrus.SetLevel(logrus.DebugLevel)
+	dir, err := ioutil.TempDir("", "storetest_")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer os.RemoveAll(dir)
+
+	ps := new(store.Store)
+	ps.Init(dir)
+	clog := commit.NewLogger(dir, "mutations", 50<<20)
+	clog.Init()
+	defer clog.Close()
+	posting.Init(ps, clog)
+
+	list := []string{"alice", "bob", "mallory", "ash", "man", "dgraph"}
+	for _, str := range list {
+		if farm.Fingerprint64([]byte(str))%numInstances == 0 {
+			uid, err := rdf.GetUid(str, 0, numInstances)
+			if uid < minIdx0 || uid > minIdx0+mod-1 {
+				t.Error("Not the correct UID", err)
+			}
+			t.Logf("Instance-0 Correct UID", str, uid)
+
+		} else {
+			uid, err := rdf.GetUid(str, 1, numInstances)
+			if uid < minIdx1 || uid > minIdx1+mod-1 {
+				t.Error("Not the correct UID", err)
+			}
+			t.Logf("Instance-1 Correct UID", str, uid)
+		}
+	}
+}