ipfs-ethdb/postgres/batch_test.go

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// 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 pgipfsethdb_test
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import (
"math/big"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
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pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
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)
var (
batch ethdb.Batch
testHeader2 = types.Header{Number: big.NewInt(2)}
testValue2, _ = rlp.EncodeToBytes(testHeader2)
testKeccakEthKey2 = testHeader2.Hash().Bytes()
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)
var _ = Describe("Batch", func() {
BeforeEach(func() {
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db, err = pgipfsethdb.TestDB()
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Expect(err).ToNot(HaveOccurred())
database = pgipfsethdb.NewDatabase(db)
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batch = database.NewBatch()
})
AfterEach(func() {
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err = pgipfsethdb.ResetTestDB(db)
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Expect(err).ToNot(HaveOccurred())
})
Describe("Put/Write", func() {
It("adds the key-value pair to the batch", func() {
_, err = database.Get(testKeccakEthKey)
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Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
_, err = database.Get(testKeccakEthKey2)
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Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
err = batch.Put(testKeccakEthKey, testValue)
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Expect(err).ToNot(HaveOccurred())
err = batch.Put(testKeccakEthKey2, testValue2)
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Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testKeccakEthKey)
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Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
val2, err := database.Get(testKeccakEthKey2)
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Expect(err).ToNot(HaveOccurred())
Expect(val2).To(Equal(testValue2))
})
})
Describe("Delete/Reset/Write", func() {
It("deletes the key-value pair in the batch", func() {
err = batch.Put(testKeccakEthKey, testValue)
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Expect(err).ToNot(HaveOccurred())
err = batch.Put(testKeccakEthKey2, testValue2)
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Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
batch.Reset()
err = batch.Delete(testKeccakEthKey)
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Expect(err).ToNot(HaveOccurred())
err = batch.Delete(testKeccakEthKey2)
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Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
_, err = database.Get(testKeccakEthKey)
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Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
_, err = database.Get(testKeccakEthKey2)
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Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
})
})
Describe("ValueSize/Reset", func() {
It("returns the size of data in the batch queued for write", func() {
err = batch.Put(testKeccakEthKey, testValue)
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Expect(err).ToNot(HaveOccurred())
err = batch.Put(testKeccakEthKey2, testValue2)
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Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
size := batch.ValueSize()
Expect(size).To(Equal(len(testValue) + len(testValue2)))
batch.Reset()
size = batch.ValueSize()
Expect(size).To(Equal(0))
})
})
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Describe("Replay", func() {
It("returns the size of data in the batch queued for write", func() {
err = batch.Put(testKeccakEthKey, testValue)
Expect(err).ToNot(HaveOccurred())
err = batch.Put(testKeccakEthKey2, testValue2)
Expect(err).ToNot(HaveOccurred())
_, err = database.Get(testKeccakEthKey)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
_, err = database.Get(testKeccakEthKey2)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
err = batch.Replay(database)
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testKeccakEthKey)
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
val2, err := database.Get(testKeccakEthKey2)
Expect(err).ToNot(HaveOccurred())
Expect(val2).To(Equal(testValue2))
})
})
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})