mirror of https://github.com/jackc/pgx.git
340 lines
8.9 KiB
Go
340 lines
8.9 KiB
Go
package pgconn_test
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import (
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"context"
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"crypto/tls"
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"net"
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"os"
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"testing"
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"time"
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"github.com/jackc/pgx"
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"github.com/jackc/pgx/pgconn"
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"github.com/pkg/errors"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestConnect(t *testing.T) {
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tests := []struct {
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name string
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env string
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}{
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{"Unix socket", "PGX_TEST_UNIX_SOCKET_CONN_STRING"},
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{"TCP", "PGX_TEST_TCP_CONN_STRING"},
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{"Plain password", "PGX_TEST_PLAIN_PASSWORD_CONN_STRING"},
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{"MD5 password", "PGX_TEST_MD5_PASSWORD_CONN_STRING"},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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connString := os.Getenv(tt.env)
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if connString == "" {
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t.Skipf("Skipping due to missing environment variable %v", tt.env)
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}
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conn, err := pgconn.Connect(context.Background(), connString)
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require.Nil(t, err)
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closeConn(t, conn)
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})
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}
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}
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// TestConnectTLS is separate from other connect tests because it has an additional test to ensure it really is a secure
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// connection.
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func TestConnectTLS(t *testing.T) {
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t.Parallel()
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connString := os.Getenv("PGX_TEST_TLS_CONN_STRING")
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if connString == "" {
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t.Skipf("Skipping due to missing environment variable %v", "PGX_TEST_TLS_CONN_STRING")
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}
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conn, err := pgconn.Connect(context.Background(), connString)
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require.Nil(t, err)
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if _, ok := conn.NetConn.(*tls.Conn); !ok {
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t.Error("not a TLS connection")
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}
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closeConn(t, conn)
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}
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func TestConnectInvalidUser(t *testing.T) {
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t.Parallel()
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connString := os.Getenv("PGX_TEST_TCP_CONN_STRING")
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if connString == "" {
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t.Skipf("Skipping due to missing environment variable %v", "PGX_TEST_TCP_CONN_STRING")
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}
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config, err := pgconn.ParseConfig(connString)
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require.Nil(t, err)
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config.User = "pgxinvalidusertest"
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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if err == nil {
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conn.Close(context.Background())
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t.Fatal("expected err but got none")
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}
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pgErr, ok := err.(pgx.PgError)
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if !ok {
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t.Fatalf("Expected to receive a PgError, instead received: %v", err)
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}
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if pgErr.Code != "28000" && pgErr.Code != "28P01" {
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t.Fatalf("Expected to receive a PgError with code 28000 or 28P01, instead received: %v", pgErr)
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}
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}
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func TestConnectWithConnectionRefused(t *testing.T) {
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t.Parallel()
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// Presumably nothing is listening on 127.0.0.1:1
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conn, err := pgconn.Connect(context.Background(), "host=127.0.0.1 port=1")
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if err == nil {
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conn.Close(context.Background())
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t.Fatal("Expected error establishing connection to bad port")
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}
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}
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func TestConnectCustomDialer(t *testing.T) {
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t.Parallel()
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config, err := pgconn.ParseConfig(os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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dialed := false
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config.DialFunc = func(ctx context.Context, network, address string) (net.Conn, error) {
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dialed = true
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return net.Dial(network, address)
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}
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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require.Nil(t, err)
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require.True(t, dialed)
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closeConn(t, conn)
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}
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func TestConnectWithRuntimeParams(t *testing.T) {
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t.Parallel()
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config, err := pgconn.ParseConfig(os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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config.RuntimeParams = map[string]string{
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"application_name": "pgxtest",
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"search_path": "myschema",
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}
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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require.Nil(t, err)
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defer closeConn(t, conn)
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result, err := conn.Exec(context.Background(), "show application_name")
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require.Nil(t, err)
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assert.Equal(t, 1, len(result.Rows))
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assert.Equal(t, "pgxtest", string(result.Rows[0][0]))
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result, err = conn.Exec(context.Background(), "show search_path")
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require.Nil(t, err)
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assert.Equal(t, 1, len(result.Rows))
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assert.Equal(t, "myschema", string(result.Rows[0][0]))
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}
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func TestConnectWithFallback(t *testing.T) {
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t.Parallel()
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config, err := pgconn.ParseConfig(os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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// Prepend current primary config to fallbacks
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config.Fallbacks = append([]*pgconn.FallbackConfig{
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&pgconn.FallbackConfig{
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Host: config.Host,
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Port: config.Port,
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TLSConfig: config.TLSConfig,
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},
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}, config.Fallbacks...)
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// Make primary config bad
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config.Host = "localhost"
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config.Port = 1 // presumably nothing listening here
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// Prepend bad first fallback
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config.Fallbacks = append([]*pgconn.FallbackConfig{
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&pgconn.FallbackConfig{
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Host: "localhost",
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Port: 1,
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TLSConfig: config.TLSConfig,
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},
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}, config.Fallbacks...)
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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require.Nil(t, err)
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closeConn(t, conn)
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}
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func TestConnectWithAfterConnectFunc(t *testing.T) {
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t.Parallel()
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config, err := pgconn.ParseConfig(os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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dialCount := 0
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config.DialFunc = func(ctx context.Context, network, address string) (net.Conn, error) {
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dialCount += 1
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return net.Dial(network, address)
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}
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acceptConnCount := 0
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config.AfterConnectFunc = func(ctx context.Context, conn *pgconn.PgConn) error {
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acceptConnCount += 1
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if acceptConnCount < 2 {
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return errors.New("reject first conn")
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}
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return nil
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}
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// Append current primary config to fallbacks
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config.Fallbacks = append(config.Fallbacks, &pgconn.FallbackConfig{
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Host: config.Host,
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Port: config.Port,
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TLSConfig: config.TLSConfig,
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})
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// Repeat fallbacks
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config.Fallbacks = append(config.Fallbacks, config.Fallbacks...)
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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require.Nil(t, err)
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closeConn(t, conn)
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assert.True(t, dialCount > 1)
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assert.True(t, acceptConnCount > 1)
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}
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func TestConnectWithAfterConnectTargetSessionAttrsReadWrite(t *testing.T) {
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t.Parallel()
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config, err := pgconn.ParseConfig(os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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config.AfterConnectFunc = pgconn.AfterConnectTargetSessionAttrsReadWrite
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config.RuntimeParams["default_transaction_read_only"] = "on"
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conn, err := pgconn.ConnectConfig(context.Background(), config)
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if !assert.NotNil(t, err) {
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conn.Close(context.Background())
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}
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}
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func TestConnExec(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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result, err := pgConn.Exec(context.Background(), "select current_database()")
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require.Nil(t, err)
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assert.Equal(t, 1, len(result.Rows))
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assert.Equal(t, pgConn.Config.Database, string(result.Rows[0][0]))
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}
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func TestConnExecMultipleQueries(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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result, err := pgConn.Exec(context.Background(), "select current_database(); select 1")
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require.Nil(t, err)
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assert.Equal(t, 1, len(result.Rows))
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assert.Equal(t, "1", string(result.Rows[0][0]))
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}
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func TestConnExecMultipleQueriesError(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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result, err := pgConn.Exec(context.Background(), "select 1; select 1/0; select 1")
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require.NotNil(t, err)
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require.Nil(t, result)
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if pgErr, ok := err.(*pgconn.PgError); ok {
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assert.Equal(t, "22012", pgErr.Code)
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} else {
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t.Errorf("unexpected error: %v", err)
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}
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}
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func TestConnExecContextCanceled(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
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defer cancel()
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result, err := pgConn.Exec(ctx, "select current_database(), pg_sleep(1)")
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require.Nil(t, result)
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assert.Equal(t, context.DeadlineExceeded, err)
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assert.True(t, pgConn.RecoverFromTimeout(context.Background()))
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}
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func TestConnRecoverFromTimeout(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
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result, err := pgConn.Exec(ctx, "select current_database(), pg_sleep(1)")
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cancel()
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require.Nil(t, result)
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assert.Equal(t, context.DeadlineExceeded, err)
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ctx, cancel = context.WithTimeout(context.Background(), 5*time.Second)
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if assert.True(t, pgConn.RecoverFromTimeout(ctx)) {
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result, err := pgConn.Exec(ctx, "select 1")
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require.Nil(t, err)
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assert.Len(t, result.Rows, 1)
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assert.Len(t, result.Rows[0], 1)
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assert.Equal(t, "1", string(result.Rows[0][0]))
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}
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cancel()
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}
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func TestConnCancelQuery(t *testing.T) {
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t.Parallel()
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pgConn, err := pgconn.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
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require.Nil(t, err)
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defer closeConn(t, pgConn)
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pgConn.SendExec("select current_database(), pg_sleep(5)")
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err = pgConn.Flush(context.Background())
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require.Nil(t, err)
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err = pgConn.CancelRequest(context.Background())
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require.Nil(t, err)
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_, err = pgConn.GetResult(context.Background()).Close()
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if err, ok := err.(*pgconn.PgError); ok {
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assert.Equal(t, "57014", err.Code)
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} else {
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t.Errorf("expected pgconn.PgError got %v", err)
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}
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}
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