138 lines
3.8 KiB
Go
138 lines
3.8 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 postgres_test
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import (
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"fmt"
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"strings"
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"testing"
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"math/big"
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"github.com/jmoiron/sqlx"
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_ "github.com/lib/pq"
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"github.com/ethereum/go-ethereum/statediff/indexer/node"
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"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
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"github.com/ethereum/go-ethereum/statediff/indexer/shared"
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)
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var DBParams = postgres.ConnectionParams{
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Name: "vulcanize_testing",
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Password: "",
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Port: 5432,
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Hostname: "localhost",
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User: "postgres",
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}
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func expectContainsSubstring(t *testing.T, full string, sub string) {
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if !strings.Contains(full, sub) {
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t.Fatalf("Expected \"%v\" to contain substring \"%v\"\n", full, sub)
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}
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}
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func TestPostgresDB(t *testing.T) {
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var sqlxdb *sqlx.DB
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t.Run("connects to the database", func(t *testing.T) {
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var err error
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pgConfig := postgres.DbConnectionString(DBParams)
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sqlxdb, err = sqlx.Connect("postgres", pgConfig)
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if err != nil {
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t.Fatalf("failed to connect to db with connection string: %s err: %v", pgConfig, err)
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}
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if sqlxdb == nil {
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t.Fatal("DB is nil")
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}
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})
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t.Run("serializes big.Int to db", func(t *testing.T) {
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// postgres driver doesn't support go big.Int type
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// various casts in golang uint64, int64, overflow for
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// transaction value (in wei) even though
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// postgres numeric can handle an arbitrary
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// sized int, so use string representation of big.Int
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// and cast on insert
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pgConnectString := postgres.DbConnectionString(DBParams)
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db, err := sqlx.Connect("postgres", pgConnectString)
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if err != nil {
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t.Fatal(err)
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}
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if err != nil {
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t.Fatal(err)
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}
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bi := new(big.Int)
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bi.SetString("34940183920000000000", 10)
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shared.ExpectEqual(t, bi.String(), "34940183920000000000")
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defer db.Exec(`DROP TABLE IF EXISTS example`)
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_, err = db.Exec("CREATE TABLE example ( id INTEGER, data NUMERIC )")
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if err != nil {
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t.Fatal(err)
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}
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sqlStatement := `
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INSERT INTO example (id, data)
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VALUES (1, cast($1 AS NUMERIC))`
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_, err = db.Exec(sqlStatement, bi.String())
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if err != nil {
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t.Fatal(err)
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}
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var data string
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err = db.QueryRow(`SELECT data FROM example WHERE id = 1`).Scan(&data)
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if err != nil {
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t.Fatal(err)
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}
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shared.ExpectEqual(t, bi.String(), data)
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actual := new(big.Int)
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actual.SetString(data, 10)
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shared.ExpectEqual(t, actual, bi)
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})
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t.Run("throws error when can't connect to the database", func(t *testing.T) {
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invalidDatabase := postgres.ConnectionParams{}
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node := node.Info{GenesisBlock: "GENESIS", NetworkID: "1", ID: "x123", ClientName: "geth"}
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_, err := postgres.NewDB(postgres.DbConnectionString(invalidDatabase),
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postgres.ConnectionConfig{}, node)
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if err == nil {
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t.Fatal("Expected an error")
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}
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expectContainsSubstring(t, err.Error(), postgres.DbConnectionFailedMsg)
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})
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t.Run("throws error when can't create node", func(t *testing.T) {
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badHash := fmt.Sprintf("x %s", strings.Repeat("1", 100))
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node := node.Info{GenesisBlock: badHash, NetworkID: "1", ID: "x123", ClientName: "geth"}
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_, err := postgres.NewDB(postgres.DbConnectionString(DBParams), postgres.ConnectionConfig{}, node)
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if err == nil {
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t.Fatal("Expected an error")
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}
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expectContainsSubstring(t, err.Error(), postgres.SettingNodeFailedMsg)
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})
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}
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