ipld-eth-server/libraries/shared/watcher/event_watcher_test.go
Rob Mulholand b96a1ee1c6 Put secondary processes to sleep in event watcher tests
- Prevent extract/delegate from spinning when other side is being
  simulated
2019-09-18 22:17:02 -05:00

179 lines
5.6 KiB
Go

// VulcanizeDB
// Copyright © 2019 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 watcher_test
import (
"errors"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/libraries/shared/constants"
"github.com/vulcanize/vulcanizedb/libraries/shared/logs"
"github.com/vulcanize/vulcanizedb/libraries/shared/mocks"
"github.com/vulcanize/vulcanizedb/libraries/shared/transformer"
"github.com/vulcanize/vulcanizedb/libraries/shared/watcher"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
)
var errExecuteClosed = errors.New("this error means the mocks were finished executing")
var _ = Describe("Event Watcher", func() {
var (
delegator *mocks.MockLogDelegator
extractor *mocks.MockLogExtractor
eventWatcher *watcher.EventWatcher
)
BeforeEach(func() {
delegator = &mocks.MockLogDelegator{}
extractor = &mocks.MockLogExtractor{}
eventWatcher = &watcher.EventWatcher{
LogDelegator: delegator,
LogExtractor: extractor,
}
})
Describe("AddTransformers", func() {
var (
fakeTransformerOne, fakeTransformerTwo *mocks.MockEventTransformer
)
BeforeEach(func() {
fakeTransformerOne = &mocks.MockEventTransformer{}
fakeTransformerOne.SetTransformerConfig(mocks.FakeTransformerConfig)
fakeTransformerTwo = &mocks.MockEventTransformer{}
fakeTransformerTwo.SetTransformerConfig(mocks.FakeTransformerConfig)
initializers := []transformer.EventTransformerInitializer{
fakeTransformerOne.FakeTransformerInitializer,
fakeTransformerTwo.FakeTransformerInitializer,
}
err := eventWatcher.AddTransformers(initializers)
Expect(err).NotTo(HaveOccurred())
})
It("adds initialized transformer to log delegator", func() {
expectedTransformers := []transformer.EventTransformer{
fakeTransformerOne,
fakeTransformerTwo,
}
Expect(delegator.AddedTransformers).To(Equal(expectedTransformers))
})
It("adds transformer config to log extractor", func() {
expectedConfigs := []transformer.EventTransformerConfig{
mocks.FakeTransformerConfig,
mocks.FakeTransformerConfig,
}
Expect(extractor.AddedConfigs).To(Equal(expectedConfigs))
})
})
Describe("Execute", func() {
It("extracts watched logs", func(done Done) {
delegator.DelegateErrors = []error{logs.ErrNoLogs}
extractor.ExtractLogsErrors = []error{nil, errExecuteClosed}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(errExecuteClosed))
Eventually(func() bool {
return extractor.ExtractLogsCount > 0
}).Should(BeTrue())
close(done)
})
It("returns error if extracting logs fails", func(done Done) {
delegator.DelegateErrors = []error{logs.ErrNoLogs}
extractor.ExtractLogsErrors = []error{fakes.FakeError}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(fakes.FakeError))
close(done)
})
It("extracts watched logs again if missing headers found", func(done Done) {
delegator.DelegateErrors = []error{logs.ErrNoLogs}
extractor.ExtractLogsErrors = []error{nil, errExecuteClosed}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(errExecuteClosed))
Eventually(func() bool {
return extractor.ExtractLogsCount > 1
}).Should(BeTrue())
close(done)
})
It("returns error if extracting logs fails on subsequent run", func(done Done) {
delegator.DelegateErrors = []error{logs.ErrNoLogs}
extractor.ExtractLogsErrors = []error{nil, fakes.FakeError}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(fakes.FakeError))
close(done)
})
It("delegates untransformed logs", func() {
delegator.DelegateErrors = []error{nil, errExecuteClosed}
extractor.ExtractLogsErrors = []error{logs.ErrNoUncheckedHeaders}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(errExecuteClosed))
Eventually(func() bool {
return delegator.DelegateCallCount > 0
}).Should(BeTrue())
})
It("returns error if delegating logs fails", func(done Done) {
delegator.DelegateErrors = []error{fakes.FakeError}
extractor.ExtractLogsErrors = []error{logs.ErrNoUncheckedHeaders}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(fakes.FakeError))
close(done)
})
It("delegates logs again if untransformed logs found", func(done Done) {
delegator.DelegateErrors = []error{nil, nil, nil, errExecuteClosed}
extractor.ExtractLogsErrors = []error{logs.ErrNoUncheckedHeaders}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(errExecuteClosed))
Eventually(func() bool {
return delegator.DelegateCallCount > 1
}).Should(BeTrue())
close(done)
})
It("returns error if delegating logs fails on subsequent run", func(done Done) {
delegator.DelegateErrors = []error{nil, fakes.FakeError}
extractor.ExtractLogsErrors = []error{logs.ErrNoUncheckedHeaders}
err := eventWatcher.Execute(constants.HeaderUnchecked)
Expect(err).To(MatchError(fakes.FakeError))
close(done)
})
})
})