func (s *S) TestNewObjectId(c *C) {
// Generate 10 ids
ids := make([]bson.ObjectId, 10)
for i := 0; i < 10; i++ {
ids[i] = bson.NewObjectId()
}
for i := 1; i < 10; i++ {
prevId := ids[i-1]
id := ids[i]
// Test for uniqueness among all other 9 generated ids
for j, tid := range ids {
if j != i {
c.Assert(id, Not(Equals), tid, Commentf("Generated ObjectId is not unique"))
}
}
// Check that timestamp was incremented and is within 30 seconds of the previous one
secs := id.Time().Sub(prevId.Time()).Seconds()
c.Assert((secs >= 0 && secs <= 30), Equals, true, Commentf("Wrong timestamp in generated ObjectId"))
// Check that machine ids are the same
c.Assert(id.Machine(), DeepEquals, prevId.Machine())
// Check that pids are the same
c.Assert(id.Pid(), Equals, prevId.Pid())
// Test for proper increment
delta := int(id.Counter() - prevId.Counter())
c.Assert(delta, Equals, 1, Commentf("Wrong increment in generated ObjectId"))
}
}
func newId() string {
return bson.NewObjectId().Hex()
}