rebase; extract factories and the mocks they are dependent on to

libraries/shared; adjust omni test_helpers to drop and recreate
checked_headers table to avoid reaching 1600 column limit after repeated
tests (dropping columns doesn't actually remove them from contributing
to that limit)

libraries/shared/storage/storage_queue.go

@@ -0,0 +1,42 @@
+// 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 storage
+
+import (
+	"github.com/vulcanize/vulcanizedb/libraries/shared/storage/utils"
+	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
+)
+
+type IStorageQueue interface {
+	Add(row utils.StorageDiffRow) error
+}
+
+type StorageQueue struct {
+	db *postgres.DB
+}
+
+func NewStorageQueue(db *postgres.DB) StorageQueue {
+	return StorageQueue{db: db}
+}
+
+func (queue StorageQueue) Add(row utils.StorageDiffRow) error {
+	_, err := queue.db.Exec(`INSERT INTO public.queued_storage (contract,
+		block_hash, block_height, storage_key, storage_value) VALUES
+		($1, $2, $3, $4, $5)`, row.Contract.Bytes(), row.BlockHash.Bytes(),
+		row.BlockHeight, row.StorageKey.Bytes(), row.StorageValue.Bytes())
+	return err
+}

libraries/shared/storage/storage_queue_test.go

@@ -0,0 +1,33 @@
+package storage_test
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"github.com/vulcanize/vulcanizedb/libraries/shared/storage"
+	"github.com/vulcanize/vulcanizedb/libraries/shared/storage/utils"
+	"github.com/vulcanize/vulcanizedb/test_config"
+)
+
+var _ = Describe("Storage queue", func() {
+	It("adds a storage row to the db", func() {
+		row := utils.StorageDiffRow{
+			Contract:     common.HexToAddress("0x123456"),
+			BlockHash:    common.HexToHash("0x678901"),
+			BlockHeight:  987,
+			StorageKey:   common.HexToHash("0x654321"),
+			StorageValue: common.HexToHash("0x198765"),
+		}
+		db := test_config.NewTestDB(test_config.NewTestNode())
+		queue := storage.NewStorageQueue(db)
+
+		addErr := queue.Add(row)
+
+		Expect(addErr).NotTo(HaveOccurred())
+		var result utils.StorageDiffRow
+		getErr := db.Get(&result, `SELECT contract, block_hash, block_height, storage_key, storage_value FROM public.queued_storage`)
+		Expect(getErr).NotTo(HaveOccurred())
+		Expect(result).To(Equal(row))
+	})
+})

libraries/shared/storage/storage_suite_test.go

@@ -0,0 +1,35 @@
+// 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 storage_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	log "github.com/sirupsen/logrus"
+	"io/ioutil"
+)
+
+func TestFactories(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Shared Storage Suite")
+}
+
+var _ = BeforeSuite(func() {
+	log.SetOutput(ioutil.Discard)
+})

libraries/shared/storage/utils/utils_suite_test.go

@@ -27,7 +27,7 @@ import (
 
 func TestShared(t *testing.T) {
 	RegisterFailHandler(Fail)
-	RunSpecs(t, "Storage Utils Suite")
+	RunSpecs(t, "Shared Storage Utils Suite")
 }
 
 var _ = BeforeSuite(func() {

libraries/shared/storage/utils/value.go

@@ -26,12 +26,6 @@ const (
 
 type Key string
 
-const (
-	Ilk  Key = "ilk"
-	Guy  Key = "guy"
-	Flip Key = "flip"
-)
-
 type StorageValueMetadata struct {
 	Name string
 	Keys map[Key]string