469 lines
8.9 KiB
Go
469 lines
8.9 KiB
Go
package pq
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import (
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"bytes"
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"database/sql"
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"database/sql/driver"
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"net"
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"strings"
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"testing"
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)
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func TestCopyInStmt(t *testing.T) {
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stmt := CopyIn("table name")
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if stmt != `COPY "table name" () FROM STDIN` {
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t.Fatal(stmt)
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}
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stmt = CopyIn("table name", "column 1", "column 2")
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if stmt != `COPY "table name" ("column 1", "column 2") FROM STDIN` {
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t.Fatal(stmt)
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}
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stmt = CopyIn(`table " name """`, `co"lumn""`)
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if stmt != `COPY "table "" name """"""" ("co""lumn""""") FROM STDIN` {
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t.Fatal(stmt)
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}
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}
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func TestCopyInSchemaStmt(t *testing.T) {
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stmt := CopyInSchema("schema name", "table name")
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if stmt != `COPY "schema name"."table name" () FROM STDIN` {
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t.Fatal(stmt)
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}
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stmt = CopyInSchema("schema name", "table name", "column 1", "column 2")
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if stmt != `COPY "schema name"."table name" ("column 1", "column 2") FROM STDIN` {
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t.Fatal(stmt)
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}
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stmt = CopyInSchema(`schema " name """`, `table " name """`, `co"lumn""`)
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if stmt != `COPY "schema "" name """"""".`+
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`"table "" name """"""" ("co""lumn""""") FROM STDIN` {
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t.Fatal(stmt)
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}
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}
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func TestCopyInMultipleValues(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
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if err != nil {
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t.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
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if err != nil {
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t.Fatal(err)
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}
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longString := strings.Repeat("#", 500)
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for i := 0; i < 500; i++ {
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_, err = stmt.Exec(int64(i), longString)
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if err != nil {
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t.Fatal(err)
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}
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}
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_, err = stmt.Exec()
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if err != nil {
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t.Fatal(err)
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}
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err = stmt.Close()
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if err != nil {
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t.Fatal(err)
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}
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var num int
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err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
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if err != nil {
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t.Fatal(err)
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}
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if num != 500 {
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t.Fatalf("expected 500 items, not %d", num)
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}
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}
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func TestCopyInRaiseStmtTrigger(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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if getServerVersion(t, db) < 90000 {
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var exists int
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err := db.QueryRow("SELECT 1 FROM pg_language WHERE lanname = 'plpgsql'").Scan(&exists)
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if err == sql.ErrNoRows {
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t.Skip("language PL/PgSQL does not exist; skipping TestCopyInRaiseStmtTrigger")
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} else if err != nil {
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t.Fatal(err)
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}
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}
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
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if err != nil {
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t.Fatal(err)
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}
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_, err = txn.Exec(`
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CREATE OR REPLACE FUNCTION pg_temp.temptest()
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RETURNS trigger AS
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$BODY$ begin
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raise notice 'Hello world';
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return new;
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end $BODY$
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LANGUAGE plpgsql`)
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if err != nil {
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t.Fatal(err)
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}
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_, err = txn.Exec(`
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CREATE TRIGGER temptest_trigger
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BEFORE INSERT
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ON temp
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FOR EACH ROW
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EXECUTE PROCEDURE pg_temp.temptest()`)
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if err != nil {
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t.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
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if err != nil {
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t.Fatal(err)
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}
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longString := strings.Repeat("#", 500)
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_, err = stmt.Exec(int64(1), longString)
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if err != nil {
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t.Fatal(err)
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}
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_, err = stmt.Exec()
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if err != nil {
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t.Fatal(err)
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}
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err = stmt.Close()
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if err != nil {
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t.Fatal(err)
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}
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var num int
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err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
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if err != nil {
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t.Fatal(err)
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}
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if num != 1 {
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t.Fatalf("expected 1 items, not %d", num)
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}
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}
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func TestCopyInTypes(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER, text VARCHAR, blob BYTEA, nothing VARCHAR)")
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if err != nil {
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t.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "num", "text", "blob", "nothing"))
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if err != nil {
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t.Fatal(err)
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}
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_, err = stmt.Exec(int64(1234567890), "Héllö\n ☃!\r\t\\", []byte{0, 255, 9, 10, 13}, nil)
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if err != nil {
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t.Fatal(err)
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}
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_, err = stmt.Exec()
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if err != nil {
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t.Fatal(err)
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}
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err = stmt.Close()
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if err != nil {
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t.Fatal(err)
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}
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var num int
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var text string
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var blob []byte
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var nothing sql.NullString
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err = txn.QueryRow("SELECT * FROM temp").Scan(&num, &text, &blob, ¬hing)
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if err != nil {
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t.Fatal(err)
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}
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if num != 1234567890 {
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t.Fatal("unexpected result", num)
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}
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if text != "Héllö\n ☃!\r\t\\" {
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t.Fatal("unexpected result", text)
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}
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if !bytes.Equal(blob, []byte{0, 255, 9, 10, 13}) {
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t.Fatal("unexpected result", blob)
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}
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if nothing.Valid {
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t.Fatal("unexpected result", nothing.String)
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}
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}
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func TestCopyInWrongType(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
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if err != nil {
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t.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "num"))
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if err != nil {
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t.Fatal(err)
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}
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defer stmt.Close()
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_, err = stmt.Exec("Héllö\n ☃!\r\t\\")
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if err != nil {
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t.Fatal(err)
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}
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_, err = stmt.Exec()
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if err == nil {
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t.Fatal("expected error")
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}
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if pge := err.(*Error); pge.Code.Name() != "invalid_text_representation" {
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t.Fatalf("expected 'invalid input syntax for integer' error, got %s (%+v)", pge.Code.Name(), pge)
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}
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}
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func TestCopyOutsideOfTxnError(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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_, err := db.Prepare(CopyIn("temp", "num"))
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if err == nil {
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t.Fatal("COPY outside of transaction did not return an error")
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}
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if err != errCopyNotSupportedOutsideTxn {
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t.Fatalf("expected %s, got %s", err, err.Error())
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}
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}
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func TestCopyInBinaryError(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
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if err != nil {
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t.Fatal(err)
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}
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_, err = txn.Prepare("COPY temp (num) FROM STDIN WITH binary")
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if err != errBinaryCopyNotSupported {
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t.Fatalf("expected %s, got %+v", errBinaryCopyNotSupported, err)
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}
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// check that the protocol is in a valid state
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err = txn.Rollback()
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestCopyFromError(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
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if err != nil {
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t.Fatal(err)
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}
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_, err = txn.Prepare("COPY temp (num) TO STDOUT")
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if err != errCopyToNotSupported {
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t.Fatalf("expected %s, got %+v", errCopyToNotSupported, err)
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}
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// check that the protocol is in a valid state
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err = txn.Rollback()
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestCopySyntaxError(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Prepare("COPY ")
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if err == nil {
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t.Fatal("expected error")
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}
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if pge := err.(*Error); pge.Code.Name() != "syntax_error" {
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t.Fatalf("expected syntax error, got %s (%+v)", pge.Code.Name(), pge)
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}
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// check that the protocol is in a valid state
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err = txn.Rollback()
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if err != nil {
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t.Fatal(err)
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}
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}
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// Tests for connection errors in copyin.resploop()
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func TestCopyRespLoopConnectionError(t *testing.T) {
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db := openTestConn(t)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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t.Fatal(err)
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}
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defer txn.Rollback()
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var pid int
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err = txn.QueryRow("SELECT pg_backend_pid()").Scan(&pid)
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if err != nil {
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t.Fatal(err)
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}
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_, err = txn.Exec("CREATE TEMP TABLE temp (a int)")
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if err != nil {
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t.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "a"))
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if err != nil {
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t.Fatal(err)
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}
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defer stmt.Close()
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_, err = db.Exec("SELECT pg_terminate_backend($1)", pid)
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if err != nil {
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t.Fatal(err)
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}
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if getServerVersion(t, db) < 90500 {
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// We have to try and send something over, since postgres before
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// version 9.5 won't process SIGTERMs while it's waiting for
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// CopyData/CopyEnd messages; see tcop/postgres.c.
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_, err = stmt.Exec(1)
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if err != nil {
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t.Fatal(err)
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}
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}
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_, err = stmt.Exec()
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if err == nil {
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t.Fatalf("expected error")
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}
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switch pge := err.(type) {
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case *Error:
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if pge.Code.Name() != "admin_shutdown" {
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t.Fatalf("expected admin_shutdown, got %s", pge.Code.Name())
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}
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case *net.OpError:
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// ignore
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default:
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if err == driver.ErrBadConn {
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// likely an EPIPE
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} else {
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t.Fatalf("unexpected error, got %+#v", err)
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}
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}
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_ = stmt.Close()
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}
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func BenchmarkCopyIn(b *testing.B) {
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db := openTestConn(b)
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defer db.Close()
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txn, err := db.Begin()
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if err != nil {
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b.Fatal(err)
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}
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defer txn.Rollback()
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_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
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if err != nil {
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b.Fatal(err)
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}
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stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
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if err != nil {
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b.Fatal(err)
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}
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for i := 0; i < b.N; i++ {
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_, err = stmt.Exec(int64(i), "hello world!")
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if err != nil {
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b.Fatal(err)
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}
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}
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_, err = stmt.Exec()
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if err != nil {
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b.Fatal(err)
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}
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err = stmt.Close()
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if err != nil {
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b.Fatal(err)
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}
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var num int
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err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
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if err != nil {
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b.Fatal(err)
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}
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if num != b.N {
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b.Fatalf("expected %d items, not %d", b.N, num)
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}
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}
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