ipld-eth-server/libraries/shared/watcher_test.go
Ian Norden 417b18ec6a Edits to address PR issues; change license from apache to AGPL; and work
towards generic method polling and reposito;y; config settings to
filterevents/methods by account address; refactoring some stuff out of
repo and into converter; remove fetcher and instead call
blockchain's FetchContractData directly; finishing tests
2018-11-15 12:32:52 -06:00

88 lines
2.6 KiB
Go

// VulcanizeDB
// Copyright © 2018 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package shared_test
import (
"errors"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/libraries/shared"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)
type MockTransformer struct {
executeWasCalled bool
executeError error
}
func (mh *MockTransformer) Execute() error {
if mh.executeError != nil {
return mh.executeError
}
mh.executeWasCalled = true
return nil
}
func fakeTransformerInitializer(db *postgres.DB, blockchain core.BlockChain, con shared.ContractConfig) (shared.Transformer, error) {
return &MockTransformer{}, nil
}
var _ = Describe("Watcher", func() {
It("Adds transformers", func() {
watcher := shared.Watcher{}
con := shared.ContractConfig{}
watcher.AddTransformers([]shared.TransformerInitializer{fakeTransformerInitializer}, con)
Expect(len(watcher.Transformers)).To(Equal(1))
Expect(watcher.Transformers).To(ConsistOf(&MockTransformer{}))
})
It("Adds transformers from multiple sources", func() {
watcher := shared.Watcher{}
con := shared.ContractConfig{}
watcher.AddTransformers([]shared.TransformerInitializer{fakeTransformerInitializer}, con)
watcher.AddTransformers([]shared.TransformerInitializer{fakeTransformerInitializer}, con)
Expect(len(watcher.Transformers)).To(Equal(2))
})
It("Executes each transformer", func() {
watcher := shared.Watcher{}
fakeTransformer := &MockTransformer{}
watcher.Transformers = []shared.Transformer{fakeTransformer}
watcher.Execute()
Expect(fakeTransformer.executeWasCalled).To(BeTrue())
})
It("Returns an error if transformer returns an error", func() {
watcher := shared.Watcher{}
fakeTransformer := &MockTransformer{executeError: errors.New("Something bad happened")}
watcher.Transformers = []shared.Transformer{fakeTransformer}
err := watcher.Execute()
Expect(err).To(HaveOccurred())
Expect(fakeTransformer.executeWasCalled).To(BeFalse())
})
})