Esempio n. 1
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func (s *oplogSuite) TestNewMongoTimestamp(c *gc.C) {
	t := time.Date(2015, 6, 24, 12, 47, 0, 0, time.FixedZone("somewhere", 5*3600))

	expected := bson.MongoTimestamp(6163845091342417920)
	c.Assert(mongo.NewMongoTimestamp(t), gc.Equals, expected)
	c.Assert(mongo.NewMongoTimestamp(t.In(time.UTC)), gc.Equals, expected)
}
Esempio n. 2
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func (s *oplogSuite) TestHonoursInitialTs(c *gc.C) {
	_, session := s.startMongo(c)

	t := time.Now()

	oplog := s.makeFakeOplog(c, session)
	for offset := -1; offset <= 1; offset++ {
		tDoc := t.Add(time.Duration(offset) * time.Second)
		s.insertDoc(c, session, oplog,
			&mongo.OplogDoc{Timestamp: mongo.NewMongoTimestamp(tDoc)},
		)
	}

	tailer := mongo.NewOplogTailer(oplog, nil, t)
	defer tailer.Stop()

	for offset := 0; offset <= 1; offset++ {
		doc := s.getNextOplog(c, tailer)
		tExpected := t.Add(time.Duration(offset) * time.Second)
		c.Assert(doc.Timestamp, gc.Equals, mongo.NewMongoTimestamp(tExpected))
	}
}
Esempio n. 3
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func (s *oplogSuite) TestNoRepeatsAfterIterRestart(c *gc.C) {
	// A bunch of documents with the same timestamp but different ids.
	// These will be split across 2 iterators.
	docs := make([]*mongo.OplogDoc, 11)
	for i := 0; i < 10; i++ {
		id := int64(i + 10)
		docs[i] = &mongo.OplogDoc{
			Timestamp:   1,
			OperationId: id,
		}
	}
	// Add one more with a different timestamp.
	docs[10] = &mongo.OplogDoc{
		Timestamp:   2,
		OperationId: 42,
	}
	session := newFakeSession(
		// First block of documents, all time 1
		newFakeIterator(nil, docs[:5]...),
		// Second block, some time 1, one time 2
		newFakeIterator(nil, docs[5:]...),
	)
	tailer := mongo.NewOplogTailer(session, time.Time{})
	defer tailer.Stop()

	for id := int64(10); id < 15; id++ {
		doc := s.getNextOplog(c, tailer)
		c.Assert(doc.Timestamp, gc.Equals, bson.MongoTimestamp(1))
		c.Assert(doc.OperationId, gc.Equals, id)
	}

	// Check the query doesn't exclude any in the first request.
	session.checkLastArgs(c, mongo.NewMongoTimestamp(time.Time{}), nil)

	// The OplogTailer will fall off the end of the iterator and get a new one.

	// Ensure that only previously unreported entries are now reported.
	for id := int64(15); id < 20; id++ {
		doc := s.getNextOplog(c, tailer)
		c.Assert(doc.Timestamp, gc.Equals, bson.MongoTimestamp(1))
		c.Assert(doc.OperationId, gc.Equals, id)
	}

	// Check we got the next block correctly
	session.checkLastArgs(c, bson.MongoTimestamp(1), []int64{10, 11, 12, 13, 14})

	doc := s.getNextOplog(c, tailer)
	c.Assert(doc.Timestamp, gc.Equals, bson.MongoTimestamp(2))
	c.Assert(doc.OperationId, gc.Equals, int64(42))
}
Esempio n. 4
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func (s *oplogSuite) TestRestartsOnErrCursor(c *gc.C) {
	session := newFakeSession(
		// First iterator terminates with an ErrCursor
		newFakeIterator(mgo.ErrCursor, &mongo.OplogDoc{Timestamp: 1, OperationId: 99}),
		newFakeIterator(nil, &mongo.OplogDoc{Timestamp: 2, OperationId: 42}),
	)
	tailer := mongo.NewOplogTailer(session, time.Time{})
	defer tailer.Stop()

	// First, ensure that the tailer is seeing oplog rows and handles
	// the ErrCursor that occurs at the end.
	doc := s.getNextOplog(c, tailer)
	c.Check(doc.Timestamp, gc.Equals, bson.MongoTimestamp(1))
	session.checkLastArgs(c, mongo.NewMongoTimestamp(time.Time{}), nil)

	// Ensure that the tailer continues after getting a new iterator.
	doc = s.getNextOplog(c, tailer)
	c.Check(doc.Timestamp, gc.Equals, bson.MongoTimestamp(2))
	session.checkLastArgs(c, bson.MongoTimestamp(1), []int64{99})
}
Esempio n. 5
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func (s *oplogSuite) TestNewMongoTimestampBeforeUnixEpoch(c *gc.C) {
	c.Assert(mongo.NewMongoTimestamp(time.Time{}), gc.Equals, bson.MongoTimestamp(0))
}