コード例 #1
0
ファイル: list_test.go プロジェクト: cayleydb/dgraph
func TestAddMutation(t *testing.T) {
	// logrus.SetLevel(logrus.DebugLevel)
	l := NewList()
	key := Key(1, "name")
	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()

	l.init(key, ps, clog)

	edge := x.DirectedEdge{
		ValueId:   9,
		Source:    "testing",
		Timestamp: time.Now(),
	}
	if err := l.AddMutation(edge, Set); err != nil {
		t.Error(err)
	}
	/*
		if err := l.CommitIfDirty(); err != nil {
			t.Error(err)
		}
	*/

	if l.Length() != 1 {
		t.Error("Unable to find added elements in posting list")
	}
	var p types.Posting
	if ok := l.Get(&p, 0); !ok {
		t.Error("Unable to retrieve posting at 1st iter")
		t.Fail()
	}
	if p.Uid() != 9 {
		t.Errorf("Expected 9. Got: %v", p.Uid)
	}
	if string(p.Source()) != "testing" {
		t.Errorf("Expected testing. Got: %v", string(p.Source()))
	}
	// return // Test 1.

	// Add another edge now.
	edge.ValueId = 81
	l.AddMutation(edge, Set)
	// l.CommitIfDirty()
	if l.Length() != 2 {
		t.Errorf("Length: %d", l.Length())
		t.Fail()
	}

	var uid uint64
	uid = 1
	for i := 0; i < l.Length(); i++ {
		if ok := l.Get(&p, i); !ok {
			t.Error("Unable to retrieve posting at 2nd iter")
		}
		uid *= 9
		if p.Uid() != uid {
			t.Logf("Expected: %v. Got: %v", uid, p.Uid())
		}
	}
	// return // Test 2.

	// Add another edge, in between the two above.
	uids := []uint64{
		9, 49, 81,
	}
	edge.ValueId = 49
	if err := l.AddMutation(edge, Set); err != nil {
		t.Error(err)
	}
	/*
		if err := l.CommitIfDirty(); err != nil {
			t.Error(err)
		}
	*/
	if err := checkUids(t, l, uids...); err != nil {
		t.Error(err)
	}
	// return // Test 3.

	// Delete an edge, add an edge, replace an edge
	edge.ValueId = 49
	if err := l.AddMutation(edge, Del); err != nil {
		t.Error(err)
	}

	edge.ValueId = 69
	if err := l.AddMutation(edge, Set); err != nil {
		t.Error(err)
	}

	edge.ValueId = 9
	edge.Source = "anti-testing"
	if err := l.AddMutation(edge, Set); err != nil {
		t.Error(err)
	}
	/*
		if err := l.CommitIfDirty(); err != nil {
			t.Error(err)
		}
	*/

	uids = []uint64{9, 69, 81}
	if err := checkUids(t, l, uids...); err != nil {
		t.Error(err)
	}

	l.Get(&p, 0)
	if string(p.Source()) != "anti-testing" {
		t.Errorf("Expected: anti-testing. Got: %v", string(p.Source()))
	}

	/*
		if err := l.CommitIfDirty(); err != nil {
			t.Error(err)
		}
	*/
	// Try reading the same data in another PostingList.
	dl := NewList()
	dl.init(key, ps, clog)
	if err := checkUids(t, dl, uids...); err != nil {
		t.Error(err)
	}

	if _, err := dl.MergeIfDirty(); err != nil {
		t.Error(err)
	}
	if err := checkUids(t, dl, uids...); err != nil {
		t.Error(err)
	}
}