128 lines
4.1 KiB
Go
128 lines
4.1 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package pgipfsethdb_test
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import (
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"math/big"
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"time"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/jmoiron/sqlx"
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"github.com/mailgun/groupcache/v2"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v4/postgres"
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)
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var (
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database ethdb.Database
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db *sqlx.DB
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err error
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testBlockNumber = big.NewInt(1337)
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testHeader = types.Header{Number: testBlockNumber}
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testValue, _ = rlp.EncodeToBytes(testHeader)
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testEthKey = testHeader.Hash().Bytes()
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testMhKey, _ = pgipfsethdb.MultihashKeyFromKeccak256(testEthKey)
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)
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var _ = Describe("Database", func() {
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BeforeEach(func() {
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db, err = pgipfsethdb.TestDB()
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Expect(err).ToNot(HaveOccurred())
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cacheConfig := pgipfsethdb.CacheConfig{
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Name: "db",
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Size: 3000000, // 3MB
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ExpiryDuration: time.Hour,
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}
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database = pgipfsethdb.NewDatabase(db, cacheConfig)
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databaseWithBlock, ok := database.(*pgipfsethdb.Database)
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Expect(ok).To(BeTrue())
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(*databaseWithBlock).BlockNumber = testBlockNumber
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})
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AfterEach(func() {
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groupcache.DeregisterGroup("db")
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err = pgipfsethdb.ResetTestDB(db)
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Expect(err).ToNot(HaveOccurred())
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})
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Describe("Has", func() {
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It("returns false if a key-pair doesn't exist in the db", func() {
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has, err := database.Has(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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Expect(has).ToNot(BeTrue())
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})
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It("returns true if a key-pair exists in the db", func() {
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_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
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Expect(err).ToNot(HaveOccurred())
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has, err := database.Has(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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Expect(has).To(BeTrue())
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})
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})
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Describe("Get", func() {
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It("throws an err if the key-pair doesn't exist in the db", func() {
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_, err = database.Get(testEthKey)
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
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})
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It("returns the value associated with the key, if the pair exists", func() {
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_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
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Expect(err).ToNot(HaveOccurred())
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val, err := database.Get(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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Expect(val).To(Equal(testValue))
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})
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})
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Describe("Put", func() {
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It("persists the key-value pair in the database", func() {
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_, err = database.Get(testEthKey)
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
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err = database.Put(testEthKey, testValue)
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Expect(err).ToNot(HaveOccurred())
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val, err := database.Get(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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Expect(val).To(Equal(testValue))
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})
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})
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Describe("Delete", func() {
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It("removes the key-value pair from the database", func() {
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err = database.Put(testEthKey, testValue)
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Expect(err).ToNot(HaveOccurred())
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val, err := database.Get(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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Expect(val).To(Equal(testValue))
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err = database.Delete(testEthKey)
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Expect(err).ToNot(HaveOccurred())
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_, err = database.Get(testEthKey)
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
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})
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})
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})
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