func (s *txnSuite) TestRetryHooks(c *gc.C) {
s.insertDoc(c, "1", "Foo")
defer txntesting.SetRetryHooks(c, s.txnRunner, func() {
s.setDocName(c, "1", "Bar")
}, func() {
s.setDocName(c, "1", "Foo")
}).Check()
maxAttempt := 0
buildTxn := func(attempt int) ([]txn.Op, error) {
maxAttempt = attempt
ops := []txn.Op{{
C: s.collection.Name,
Id: "1",
Assert: bson.D{{"name", "Foo"}},
Update: bson.D{{"$set", bson.D{{"name", "FooBar"}}}},
}}
return ops, nil
}
err := s.txnRunner.Run(buildTxn)
c.Assert(err, gc.IsNil)
c.Assert(maxAttempt, gc.Equals, 2)
var found simpleDoc
err = s.collection.FindId("1").One(&found)
c.Assert(err, gc.IsNil)
doc := simpleDoc{"1", "FooBar"}
c.Assert(found, gc.DeepEquals, doc)
}
func SetRetryHooks(c *gc.C, st *State, block, check func()) txntesting.TransactionChecker {
return txntesting.SetRetryHooks(c, st.transactionRunner, block, check)
}