Reorganize code
This commit is contained in:
Jack Christensen
+540
@@ -0,0 +1,540 @@
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package pgx_test
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import (
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"bytes"
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"fmt"
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"github.com/jackc/pgx"
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"strings"
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"testing"
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"time"
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)
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func TestConnQueryScan(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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var sum, rowCount int32
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rows, err := conn.Query("select generate_series(1,$1)", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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defer rows.Close()
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for rows.Next() {
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var n int32
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rows.Scan(&n)
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sum += n
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rowCount++
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}
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if rows.Err() != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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if rowCount != 10 {
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t.Error("Select called onDataRow wrong number of times")
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}
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if sum != 55 {
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t.Error("Wrong values returned")
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}
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}
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func TestConnQueryValues(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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var rowCount int32
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rows, err := conn.Query("select 'foo', n from generate_series(1,$1) n", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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defer rows.Close()
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for rows.Next() {
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rowCount++
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values, err := rows.Values()
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if err != nil {
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t.Fatalf("rows.Values failed: %v", err)
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}
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if len(values) != 2 {
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t.Errorf("Expected rows.Values to return 2 values, but it returned %d", len(values))
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}
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if values[0] != "foo" {
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t.Errorf(`Expected values[0] to be "foo", but it was %v`, values[0])
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}
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if values[0] != "foo" {
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t.Errorf(`Expected values[0] to be "foo", but it was %v`, values[0])
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}
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if values[1] != rowCount {
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t.Errorf(`Expected values[1] to be %d, but it was %d`, rowCount, values[1])
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}
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}
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if rows.Err() != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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if rowCount != 10 {
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t.Error("Select called onDataRow wrong number of times")
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}
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}
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// Test that a connection stays valid when query results are closed early
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func TestConnQueryCloseEarly(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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// Immediately close query without reading any rows
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rows, err := conn.Query("select generate_series(1,$1)", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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rows.Close()
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ensureConnValid(t, conn)
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// Read partial response then close
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rows, err = conn.Query("select generate_series(1,$1)", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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ok := rows.Next()
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if !ok {
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t.Fatal("rows.Next terminated early")
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}
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var n int32
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rows.Scan(&n)
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if n != 1 {
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t.Fatalf("Expected 1 from first row, but got %v", n)
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}
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rows.Close()
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ensureConnValid(t, conn)
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}
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// Test that a connection stays valid when query results read incorrectly
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func TestConnQueryReadWrongTypeError(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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// Read a single value incorrectly
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rows, err := conn.Query("select generate_series(1,$1)", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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rowsRead := 0
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for rows.Next() {
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var t time.Time
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rows.Scan(&t)
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rowsRead++
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}
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if rowsRead != 1 {
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t.Fatalf("Expected error to cause only 1 row to be read, but %d were read", rowsRead)
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}
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if rows.Err() == nil {
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t.Fatal("Expected Rows to have an error after an improper read but it didn't")
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}
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ensureConnValid(t, conn)
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}
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// Test that a connection stays valid when query results read incorrectly
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func TestConnQueryReadTooManyValues(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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// Read too many values
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rows, err := conn.Query("select generate_series(1,$1)", 10)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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rowsRead := 0
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for rows.Next() {
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var n, m int32
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rows.Scan(&n, &m)
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rowsRead++
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}
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if rowsRead != 1 {
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t.Fatalf("Expected error to cause only 1 row to be read, but %d were read", rowsRead)
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}
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if rows.Err() == nil {
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t.Fatal("Expected Rows to have an error after an improper read but it didn't")
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}
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ensureConnValid(t, conn)
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}
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func TestConnQueryUnpreparedScanner(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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rows, err := conn.Query("select null::int8, 1::int8")
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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ok := rows.Next()
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if !ok {
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t.Fatal("rows.Next terminated early")
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}
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var n, m pgx.NullInt64
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err = rows.Scan(&n, &m)
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if err != nil {
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t.Fatalf("rows.Scan failed: ", err)
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}
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rows.Close()
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if n.Valid {
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t.Error("Null should not be valid, but it was")
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}
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if !m.Valid {
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t.Error("1 should be valid, but it wasn't")
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}
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if m.Int64 != 1 {
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t.Errorf("m.Int64 should have been 1, but it was %v", m.Int64)
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}
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ensureConnValid(t, conn)
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}
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func TestConnQueryPreparedScanner(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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mustPrepare(t, conn, "scannerTest", "select null::int8, 1::int8")
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rows, err := conn.Query("scannerTest")
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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ok := rows.Next()
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if !ok {
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t.Fatal("rows.Next terminated early")
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}
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var n, m pgx.NullInt64
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err = rows.Scan(&n, &m)
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if err != nil {
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t.Fatalf("rows.Scan failed: ", err)
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}
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rows.Close()
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if n.Valid {
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t.Error("Null should not be valid, but it was")
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}
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if !m.Valid {
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t.Error("1 should be valid, but it wasn't")
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}
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if m.Int64 != 1 {
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t.Errorf("m.Int64 should have been 1, but it was %v", m.Int64)
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}
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ensureConnValid(t, conn)
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}
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func TestConnQueryUnpreparedEncoder(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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n := pgx.NullInt64{Int64: 1, Valid: true}
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rows, err := conn.Query("select $1::int8", &n)
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if err != nil {
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t.Fatalf("conn.Query failed: ", err)
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}
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ok := rows.Next()
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if !ok {
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t.Fatal("rows.Next terminated early")
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}
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var m pgx.NullInt64
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err = rows.Scan(&m)
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if err != nil {
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t.Fatalf("rows.Scan failed: ", err)
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}
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rows.Close()
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if !m.Valid {
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t.Error("m should be valid, but it wasn't")
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}
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if m.Int64 != 1 {
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t.Errorf("m.Int64 should have been 1, but it was %v", m.Int64)
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}
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ensureConnValid(t, conn)
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}
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func TestQueryPreparedEncodeError(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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mustPrepare(t, conn, "testTranscode", "select $1::integer")
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defer func() {
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if err := conn.Deallocate("testTranscode"); err != nil {
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t.Fatalf("Unable to deallocate prepared statement: %v", err)
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}
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}()
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_, err := conn.Query("testTranscode", "wrong")
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switch {
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case err == nil:
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t.Error("Expected transcode error to return error, but it didn't")
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case err.Error() == "Expected integer representable in int32, received string wrong":
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// Correct behavior
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default:
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t.Errorf("Expected transcode error, received %v", err)
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}
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}
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// Ensure that an argument that implements TextEncoder, but not BinaryEncoder
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// works when the parameter type is a core type.
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type coreTextEncoder struct{}
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func (n *coreTextEncoder) EncodeText() (string, byte, error) {
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return "42", pgx.SafeText, nil
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}
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func TestQueryPreparedEncodeCoreTextFormatError(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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mustPrepare(t, conn, "testTranscode", "select $1::integer")
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var n int32
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err := conn.QueryRow("testTranscode", &coreTextEncoder{}).Scan(&n)
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if err != nil {
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t.Fatalf("Unexpected conn.QueryRow error: %v", err)
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}
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if n != 42 {
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t.Errorf("Expected 42, got %v", n)
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}
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}
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func TestQueryRowCoreTypes(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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type allTypes struct {
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s string
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i16 int16
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i32 int32
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i64 int64
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f32 float32
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f64 float64
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b bool
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t time.Time
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}
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var actual, zero allTypes
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tests := []struct {
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sql string
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queryArgs []interface{}
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scanArgs []interface{}
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expected allTypes
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}{
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{"select $1::text", []interface{}{"Jack"}, []interface{}{&actual.s}, allTypes{s: "Jack"}},
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{"select $1::int2", []interface{}{int16(42)}, []interface{}{&actual.i16}, allTypes{i16: 42}},
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{"select $1::int4", []interface{}{int32(42)}, []interface{}{&actual.i32}, allTypes{i32: 42}},
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{"select $1::int8", []interface{}{int64(42)}, []interface{}{&actual.i64}, allTypes{i64: 42}},
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{"select $1::float4", []interface{}{float32(1.23)}, []interface{}{&actual.f32}, allTypes{f32: 1.23}},
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{"select $1::float8", []interface{}{float64(1.23)}, []interface{}{&actual.f64}, allTypes{f64: 1.23}},
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{"select $1::bool", []interface{}{true}, []interface{}{&actual.b}, allTypes{b: true}},
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{"select $1::timestamptz", []interface{}{time.Unix(123, 5000)}, []interface{}{&actual.t}, allTypes{t: time.Unix(123, 5000)}},
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{"select $1::date", []interface{}{time.Date(1987, 1, 2, 0, 0, 0, 0, time.Local)}, []interface{}{&actual.t}, allTypes{t: time.Date(1987, 1, 2, 0, 0, 0, 0, time.Local)}},
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}
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for i, tt := range tests {
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psName := fmt.Sprintf("success%d", i)
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mustPrepare(t, conn, psName, tt.sql)
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for _, sql := range []string{tt.sql, psName} {
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actual = zero
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err := conn.QueryRow(sql, tt.queryArgs...).Scan(tt.scanArgs...)
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if err != nil {
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t.Errorf("%d. Unexpected failure: %v (sql -> %v, queryArgs -> %v)", i, err, sql, tt.queryArgs)
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}
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if actual != tt.expected {
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t.Errorf("%d. Expected %v, got %v (sql -> %v, queryArgs -> %v)", i, tt.expected, actual, sql, tt.queryArgs)
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}
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ensureConnValid(t, conn)
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}
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}
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}
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func TestQueryRowCoreBytea(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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var actual []byte
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sql := "select $1::bytea"
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queryArg := []byte{0, 15, 255, 17}
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expected := []byte{0, 15, 255, 17}
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psName := "selectBytea"
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mustPrepare(t, conn, psName, sql)
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for _, sql := range []string{sql, psName} {
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actual = nil
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err := conn.QueryRow(sql, queryArg).Scan(&actual)
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if err != nil {
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t.Errorf("Unexpected failure: %v (sql -> %v)", err, sql)
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}
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if bytes.Compare(actual, expected) != 0 {
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t.Errorf("Expected %v, got %v (sql -> %v)", expected, actual, sql)
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}
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ensureConnValid(t, conn)
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}
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}
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func TestQueryRowUnpreparedErrors(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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type allTypes struct {
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i16 int16
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}
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var actual, zero allTypes
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tests := []struct {
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sql string
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queryArgs []interface{}
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scanArgs []interface{}
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err string
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}{
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{"select $1", []interface{}{"Jack"}, []interface{}{&actual.i16}, "Expected type oid 21 but received type oid 705"},
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{"select $1::badtype", []interface{}{"Jack"}, []interface{}{&actual.i16}, `type "badtype" does not exist`},
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{"SYNTAX ERROR", []interface{}{}, []interface{}{&actual.i16}, "SQLSTATE 42601"},
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}
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for i, tt := range tests {
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actual = zero
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err := conn.QueryRow(tt.sql, tt.queryArgs...).Scan(tt.scanArgs...)
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if err == nil {
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t.Errorf("%d. Unexpected success (sql -> %v, queryArgs -> %v)", i, tt.sql, tt.queryArgs)
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}
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if !strings.Contains(err.Error(), tt.err) {
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t.Errorf("%d. Expected error to contain %s, but got %v (sql -> %v, queryArgs -> %v)", i, tt.err, err, tt.sql, tt.queryArgs)
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}
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ensureConnValid(t, conn)
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}
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}
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func TestQueryRowPreparedErrors(t *testing.T) {
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t.Parallel()
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
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type allTypes struct {
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i16 int16
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}
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var actual, zero allTypes
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tests := []struct {
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sql string
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queryArgs []interface{}
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scanArgs []interface{}
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err string
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}{
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{"select $1::text", []interface{}{"Jack"}, []interface{}{&actual.i16}, "Expected type oid 21 but received type oid 25"},
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}
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|
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for i, tt := range tests {
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psName := fmt.Sprintf("ps%d", i)
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mustPrepare(t, conn, psName, tt.sql)
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actual = zero
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err := conn.QueryRow(psName, tt.queryArgs...).Scan(tt.scanArgs...)
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if err == nil {
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t.Errorf("%d. Unexpected success (sql -> %v, queryArgs -> %v)", i, tt.sql, tt.queryArgs)
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}
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if !strings.Contains(err.Error(), tt.err) {
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t.Errorf("%d. Expected error to contain %s, but got %v (sql -> %v, queryArgs -> %v)", i, tt.err, err, tt.sql, tt.queryArgs)
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}
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ensureConnValid(t, conn)
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}
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}
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func TestQueryRowNoResults(t *testing.T) {
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t.Parallel()
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|
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conn := mustConnect(t, *defaultConnConfig)
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defer closeConn(t, conn)
|
||||
|
||||
sql := "select 1 where 1=0"
|
||||
psName := "selectNothing"
|
||||
mustPrepare(t, conn, psName, sql)
|
||||
|
||||
for _, sql := range []string{sql, psName} {
|
||||
var n int32
|
||||
err := conn.QueryRow(sql).Scan(&n)
|
||||
if err != pgx.ErrNoRows {
|
||||
t.Errorf("Expected pgx.ErrNoRows, got %v", err)
|
||||
}
|
||||
|
||||
ensureConnValid(t, conn)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user