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344 lines
10 KiB
344 lines
10 KiB
package psql
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import (
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"context"
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"database/sql"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"os/signal"
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"testing"
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"time"
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"github.com/adlio/schema"
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"github.com/gogo/protobuf/proto"
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"github.com/ory/dockertest"
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"github.com/ory/dockertest/docker"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/state/indexer"
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"github.com/tendermint/tendermint/types"
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// Register the Postgres database driver.
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_ "github.com/lib/pq"
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)
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// Verify that the type satisfies the EventSink interface.
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var _ indexer.EventSink = (*EventSink)(nil)
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var (
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doPauseAtExit = flag.Bool("pause-at-exit", false,
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"If true, pause the test until interrupted at shutdown, to allow debugging")
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// A hook that test cases can call to obtain the shared database instance
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// used for testing the sink. This is initialized in TestMain (see below).
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testDB func() *sql.DB
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)
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const (
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user = "postgres"
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password = "secret"
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port = "5432"
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dsn = "postgres://%s:%s@localhost:%s/%s?sslmode=disable"
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dbName = "postgres"
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chainID = "test-chainID"
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viewBlockEvents = "block_events"
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viewTxEvents = "tx_events"
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)
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func TestMain(m *testing.M) {
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flag.Parse()
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// Set up docker and start a container running PostgreSQL.
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pool, err := dockertest.NewPool(os.Getenv("DOCKER_URL"))
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if err != nil {
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log.Fatalf("Creating docker pool: %v", err)
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}
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resource, err := pool.RunWithOptions(&dockertest.RunOptions{
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Repository: "postgres",
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Tag: "13",
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Env: []string{
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"POSTGRES_USER=" + user,
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"POSTGRES_PASSWORD=" + password,
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"POSTGRES_DB=" + dbName,
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"listen_addresses = '*'",
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},
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ExposedPorts: []string{port},
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}, func(config *docker.HostConfig) {
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// set AutoRemove to true so that stopped container goes away by itself
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config.AutoRemove = true
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config.RestartPolicy = docker.RestartPolicy{
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Name: "no",
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}
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})
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if err != nil {
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log.Fatalf("Starting docker pool: %v", err)
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}
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if *doPauseAtExit {
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log.Print("Pause at exit is enabled, containers will not expire")
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} else {
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const expireSeconds = 60
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_ = resource.Expire(expireSeconds)
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log.Printf("Container expiration set to %d seconds", expireSeconds)
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}
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// Connect to the database, clear any leftover data, and install the
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// indexing schema.
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conn := fmt.Sprintf(dsn, user, password, resource.GetPort(port+"/tcp"), dbName)
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var db *sql.DB
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if err := pool.Retry(func() error {
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sink, err := NewEventSink(conn, chainID)
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if err != nil {
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return err
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}
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db = sink.DB() // set global for test use
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return db.Ping()
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}); err != nil {
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log.Fatalf("Connecting to database: %v", err)
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}
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if err := resetDatabase(db); err != nil {
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log.Fatalf("Flushing database: %v", err)
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}
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sm, err := readSchema()
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if err != nil {
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log.Fatalf("Reading schema: %v", err)
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} else if err := schema.NewMigrator().Apply(db, sm); err != nil {
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log.Fatalf("Applying schema: %v", err)
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}
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// Set up the hook for tests to get the shared database handle.
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testDB = func() *sql.DB { return db }
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// Run the selected test cases.
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code := m.Run()
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// Clean up and shut down the database container.
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if *doPauseAtExit {
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log.Print("Testing complete, pausing for inspection. Send SIGINT to resume teardown")
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waitForInterrupt()
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log.Print("(resuming)")
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}
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log.Print("Shutting down database")
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if err := pool.Purge(resource); err != nil {
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log.Printf("WARNING: Purging pool failed: %v", err)
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}
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if err := db.Close(); err != nil {
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log.Printf("WARNING: Closing database failed: %v", err)
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}
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os.Exit(code)
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}
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func TestType(t *testing.T) {
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psqlSink := &EventSink{store: testDB(), chainID: chainID}
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assert.Equal(t, indexer.PSQL, psqlSink.Type())
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}
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func TestIndexing(t *testing.T) {
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t.Run("IndexBlockEvents", func(t *testing.T) {
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indexer := &EventSink{store: testDB(), chainID: chainID}
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require.NoError(t, indexer.IndexBlockEvents(newTestBlockHeader()))
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verifyBlock(t, 1)
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verifyBlock(t, 2)
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verifyNotImplemented(t, "hasBlock", func() (bool, error) { return indexer.HasBlock(1) })
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verifyNotImplemented(t, "hasBlock", func() (bool, error) { return indexer.HasBlock(2) })
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verifyNotImplemented(t, "block search", func() (bool, error) {
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v, err := indexer.SearchBlockEvents(context.Background(), nil)
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return v != nil, err
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})
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require.NoError(t, verifyTimeStamp(tableBlocks))
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// Attempting to reindex the same events should gracefully succeed.
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require.NoError(t, indexer.IndexBlockEvents(newTestBlockHeader()))
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})
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t.Run("IndexTxEvents", func(t *testing.T) {
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indexer := &EventSink{store: testDB(), chainID: chainID}
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txResult := txResultWithEvents([]abci.Event{
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makeIndexedEvent("account.number", "1"),
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makeIndexedEvent("account.owner", "Ivan"),
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makeIndexedEvent("account.owner", "Yulieta"),
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{Type: "", Attributes: []abci.EventAttribute{{Key: "not_allowed", Value: "Vlad", Index: true}}},
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})
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require.NoError(t, indexer.IndexTxEvents([]*abci.TxResult{txResult}))
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txr, err := loadTxResult(types.Tx(txResult.Tx).Hash())
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require.NoError(t, err)
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assert.Equal(t, txResult, txr)
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require.NoError(t, verifyTimeStamp(tableTxResults))
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require.NoError(t, verifyTimeStamp(viewTxEvents))
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verifyNotImplemented(t, "getTxByHash", func() (bool, error) {
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txr, err := indexer.GetTxByHash(types.Tx(txResult.Tx).Hash())
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return txr != nil, err
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})
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verifyNotImplemented(t, "tx search", func() (bool, error) {
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txr, err := indexer.SearchTxEvents(context.Background(), nil)
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return txr != nil, err
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})
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// try to insert the duplicate tx events.
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err = indexer.IndexTxEvents([]*abci.TxResult{txResult})
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require.NoError(t, err)
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})
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}
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func TestStop(t *testing.T) {
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indexer := &EventSink{store: testDB()}
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require.NoError(t, indexer.Stop())
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}
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// newTestBlockHeader constructs a fresh copy of a block header containing
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// known test values to exercise the indexer.
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func newTestBlockHeader() types.EventDataNewBlockHeader {
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return types.EventDataNewBlockHeader{
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Header: types.Header{Height: 1},
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ResultBeginBlock: abci.ResponseBeginBlock{
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Events: []abci.Event{
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makeIndexedEvent("begin_event.proposer", "FCAA001"),
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makeIndexedEvent("thingy.whatzit", "O.O"),
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},
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},
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ResultEndBlock: abci.ResponseEndBlock{
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Events: []abci.Event{
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makeIndexedEvent("end_event.foo", "100"),
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makeIndexedEvent("thingy.whatzit", "-.O"),
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},
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},
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}
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}
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// readSchema loads the indexing database schema file
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func readSchema() ([]*schema.Migration, error) {
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const filename = "schema.sql"
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contents, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("failed to read sql file from '%s': %w", filename, err)
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}
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return []*schema.Migration{{
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ID: time.Now().Local().String() + " db schema",
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Script: string(contents),
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}}, nil
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}
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// resetDB drops all the data from the test database.
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func resetDatabase(db *sql.DB) error {
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_, err := db.Exec(`DROP TABLE IF EXISTS blocks,tx_results,events,attributes CASCADE;`)
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if err != nil {
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return fmt.Errorf("dropping tables: %v", err)
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}
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_, err = db.Exec(`DROP VIEW IF EXISTS event_attributes,block_events,tx_events CASCADE;`)
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if err != nil {
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return fmt.Errorf("dropping views: %v", err)
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}
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return nil
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}
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// txResultWithEvents constructs a fresh transaction result with fixed values
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// for testing, that includes the specified events.
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func txResultWithEvents(events []abci.Event) *abci.TxResult {
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return &abci.TxResult{
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Height: 1,
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Index: 0,
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Tx: types.Tx("HELLO WORLD"),
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Result: abci.ResponseDeliverTx{
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Data: []byte{0},
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Code: abci.CodeTypeOK,
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Log: "",
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Events: events,
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},
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}
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}
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func loadTxResult(hash []byte) (*abci.TxResult, error) {
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hashString := fmt.Sprintf("%X", hash)
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var resultData []byte
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if err := testDB().QueryRow(`
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SELECT tx_result FROM `+tableTxResults+` WHERE tx_hash = $1;
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`, hashString).Scan(&resultData); err != nil {
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return nil, fmt.Errorf("lookup transaction for hash %q failed: %v", hashString, err)
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}
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txr := new(abci.TxResult)
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if err := proto.Unmarshal(resultData, txr); err != nil {
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return nil, fmt.Errorf("unmarshaling txr: %v", err)
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}
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return txr, nil
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}
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func verifyTimeStamp(tableName string) error {
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return testDB().QueryRow(fmt.Sprintf(`
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SELECT DISTINCT %[1]s.created_at
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FROM %[1]s
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WHERE %[1]s.created_at >= $1;
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`, tableName), time.Now().Add(-2*time.Second)).Err()
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}
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func verifyBlock(t *testing.T, height int64) {
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// Check that the blocks table contains an entry for this height.
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if err := testDB().QueryRow(`
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SELECT height FROM `+tableBlocks+` WHERE height = $1;
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`, height).Err(); err == sql.ErrNoRows {
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t.Errorf("No block found for height=%d", height)
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} else if err != nil {
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t.Fatalf("Database query failed: %v", err)
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}
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// Verify the presence of begin_block and end_block events.
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if err := testDB().QueryRow(`
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SELECT type, height, chain_id FROM `+viewBlockEvents+`
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WHERE height = $1 AND type = $2 AND chain_id = $3;
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`, height, types.EventTypeBeginBlock, chainID).Err(); err == sql.ErrNoRows {
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t.Errorf("No %q event found for height=%d", types.EventTypeBeginBlock, height)
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} else if err != nil {
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t.Fatalf("Database query failed: %v", err)
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}
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if err := testDB().QueryRow(`
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SELECT type, height, chain_id FROM `+viewBlockEvents+`
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WHERE height = $1 AND type = $2 AND chain_id = $3;
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`, height, types.EventTypeEndBlock, chainID).Err(); err == sql.ErrNoRows {
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t.Errorf("No %q event found for height=%d", types.EventTypeEndBlock, height)
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} else if err != nil {
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t.Fatalf("Database query failed: %v", err)
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}
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}
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// verifyNotImplemented calls f and verifies that it returns both a
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// false-valued flag and a non-nil error whose string matching the expected
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// "not supported" message with label prefixed.
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func verifyNotImplemented(t *testing.T, label string, f func() (bool, error)) {
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t.Helper()
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t.Logf("Verifying that %q reports it is not implemented", label)
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want := label + " is not supported via the postgres event sink"
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ok, err := f()
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assert.False(t, ok)
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require.NotNil(t, err)
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assert.Equal(t, want, err.Error())
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}
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// waitForInterrupt blocks until a SIGINT is received by the process.
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func waitForInterrupt() {
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ch := make(chan os.Signal, 1)
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signal.Notify(ch, os.Interrupt)
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<-ch
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}
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