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driver_test.go
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package mysql
import (
"database/sql"
"fmt"
"io"
"io/ioutil"
"net"
"os"
"strings"
"testing"
"time"
)
var (
charset string
dsn string
netAddr string
available bool
)
var (
tDate = time.Date(2012, 6, 14, 0, 0, 0, 0, time.UTC)
sDate = "2012-06-14"
tDateTime = time.Date(2011, 11, 20, 21, 27, 37, 0, time.UTC)
sDateTime = "2011-11-20 21:27:37"
tDate0 = time.Time{}
sDate0 = "0000-00-00"
sDateTime0 = "0000-00-00 00:00:00"
)
// See https://github.com/go-sql-driver/mysql/wiki/Testing
func init() {
env := func(key, defaultValue string) string {
if value := os.Getenv(key); value != "" {
return value
}
return defaultValue
}
user := env("MYSQL_TEST_USER", "root")
pass := env("MYSQL_TEST_PASS", "")
prot := env("MYSQL_TEST_PROT", "tcp")
addr := env("MYSQL_TEST_ADDR", "localhost:3306")
dbname := env("MYSQL_TEST_DBNAME", "gotest")
charset = "charset=utf8"
netAddr = fmt.Sprintf("%s(%s)", prot, addr)
dsn = fmt.Sprintf("%s:%s@%s/%s?timeout=30s&strict=true&"+charset, user, pass, netAddr, dbname)
c, err := net.Dial(prot, addr)
if err == nil {
available = true
c.Close()
}
}
type DBTest struct {
*testing.T
db *sql.DB
}
func runTests(t *testing.T, name, dsn string, tests ...func(dbt *DBTest)) {
if !available {
t.Logf("MySQL-Server not running on %s. Skipping %s", netAddr, name)
return
}
db, err := sql.Open("mysql", dsn)
if err != nil {
t.Fatalf("Error connecting: %v", err)
}
defer db.Close()
db.Exec("DROP TABLE IF EXISTS test")
dbt := &DBTest{t, db}
for _, test := range tests {
test(dbt)
dbt.db.Exec("DROP TABLE IF EXISTS test")
}
}
func (dbt *DBTest) fail(method, query string, err error) {
if len(query) > 300 {
query = "[query too large to print]"
}
dbt.Fatalf("Error on %s %s: %v", method, query, err)
}
func (dbt *DBTest) mustExec(query string, args ...interface{}) (res sql.Result) {
res, err := dbt.db.Exec(query, args...)
if err != nil {
dbt.fail("Exec", query, err)
}
return res
}
func (dbt *DBTest) mustQuery(query string, args ...interface{}) (rows *sql.Rows) {
rows, err := dbt.db.Query(query, args...)
if err != nil {
dbt.fail("Query", query, err)
}
return rows
}
func TestCharset(t *testing.T) {
mustSetCharset := func(charsetParam, expected string) {
db, err := sql.Open("mysql", strings.Replace(dsn, charset, charsetParam, 1))
if err != nil {
t.Fatalf("Error on Open: %v", err)
}
defer db.Close()
dbt := &DBTest{t, db}
rows := dbt.mustQuery("SELECT @@character_set_connection")
defer rows.Close()
if !rows.Next() {
dbt.Fatalf("Error getting connection charset: %v", err)
}
var got string
rows.Scan(&got)
if got != expected {
dbt.Fatalf("Expected connection charset %s but got %s", expected, got)
}
}
if !available {
t.Logf("MySQL-Server not running on %s. Skipping TestCharset", netAddr)
return
}
// non utf8 test
mustSetCharset("charset=ascii", "ascii")
// when the first charset is invalid, use the second
mustSetCharset("charset=none,utf8", "utf8")
// when the first charset is valid, use it
mustSetCharset("charset=ascii,utf8", "ascii")
mustSetCharset("charset=utf8,ascii", "utf8")
}
func TestFailingCharset(t *testing.T) {
if !available {
t.Logf("MySQL-Server not running on %s. Skipping TestFailingCharset", netAddr)
return
}
db, err := sql.Open("mysql", strings.Replace(dsn, charset, "charset=none", 1))
if err != nil {
t.Fatalf("Error on Open: %v", err)
}
defer db.Close()
// run query to really establish connection...
_, err = db.Exec("SELECT 1")
if err == nil {
db.Close()
t.Fatalf("Connection must not succeed without a valid charset")
}
}
func TestRawBytesResultExceedsBuffer(t *testing.T) {
runTests(t, "TestRawBytesResultExceedsBuffer", dsn, func(dbt *DBTest) {
// defaultBufSize from buffer.go
expected := strings.Repeat("abc", defaultBufSize)
rows := dbt.mustQuery("SELECT '" + expected + "'")
defer rows.Close()
if !rows.Next() {
dbt.Error("expected result, got none")
}
var result sql.RawBytes
rows.Scan(&result)
if expected != string(result) {
dbt.Error("result did not match expected value")
}
})
}
func TestCRUD(t *testing.T) {
runTests(t, "TestCRUD", dsn, func(dbt *DBTest) {
// Create Table
dbt.mustExec("CREATE TABLE test (value BOOL)")
// Test for unexpected data
var out bool
rows := dbt.mustQuery("SELECT * FROM test")
if rows.Next() {
dbt.Error("unexpected data in empty table")
}
// Create Data
res := dbt.mustExec("INSERT INTO test VALUES (1)")
count, err := res.RowsAffected()
if err != nil {
dbt.Fatalf("res.RowsAffected() returned error: %v", err)
}
if count != 1 {
dbt.Fatalf("Expected 1 affected row, got %d", count)
}
id, err := res.LastInsertId()
if err != nil {
dbt.Fatalf("res.LastInsertId() returned error: %v", err)
}
if id != 0 {
dbt.Fatalf("Expected InsertID 0, got %d", id)
}
// Read
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if true != out {
dbt.Errorf("true != %t", out)
}
if rows.Next() {
dbt.Error("unexpected data")
}
} else {
dbt.Error("no data")
}
// Update
res = dbt.mustExec("UPDATE test SET value = ? WHERE value = ?", false, true)
count, err = res.RowsAffected()
if err != nil {
dbt.Fatalf("res.RowsAffected() returned error: %v", err)
}
if count != 1 {
dbt.Fatalf("Expected 1 affected row, got %d", count)
}
// Check Update
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if false != out {
dbt.Errorf("false != %t", out)
}
if rows.Next() {
dbt.Error("unexpected data")
}
} else {
dbt.Error("no data")
}
// Delete
res = dbt.mustExec("DELETE FROM test WHERE value = ?", false)
count, err = res.RowsAffected()
if err != nil {
dbt.Fatalf("res.RowsAffected() returned error: %v", err)
}
if count != 1 {
dbt.Fatalf("Expected 1 affected row, got %d", count)
}
// Check for unexpected rows
res = dbt.mustExec("DELETE FROM test")
count, err = res.RowsAffected()
if err != nil {
dbt.Fatalf("res.RowsAffected() returned error: %v", err)
}
if count != 0 {
dbt.Fatalf("Expected 0 affected row, got %d", count)
}
})
}
func TestInt(t *testing.T) {
runTests(t, "TestInt", dsn, func(dbt *DBTest) {
types := [5]string{"TINYINT", "SMALLINT", "MEDIUMINT", "INT", "BIGINT"}
in := int64(42)
var out int64
var rows *sql.Rows
// SIGNED
for _, v := range types {
dbt.mustExec("CREATE TABLE test (value " + v + ")")
dbt.mustExec("INSERT INTO test VALUES (?)", in)
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if in != out {
dbt.Errorf("%s: %d != %d", v, in, out)
}
} else {
dbt.Errorf("%s: no data", v)
}
dbt.mustExec("DROP TABLE IF EXISTS test")
}
// UNSIGNED ZEROFILL
for _, v := range types {
dbt.mustExec("CREATE TABLE test (value " + v + " ZEROFILL)")
dbt.mustExec("INSERT INTO test VALUES (?)", in)
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if in != out {
dbt.Errorf("%s ZEROFILL: %d != %d", v, in, out)
}
} else {
dbt.Errorf("%s ZEROFILL: no data", v)
}
dbt.mustExec("DROP TABLE IF EXISTS test")
}
})
}
func TestFloat(t *testing.T) {
runTests(t, "TestFloat", dsn, func(dbt *DBTest) {
types := [2]string{"FLOAT", "DOUBLE"}
in := float32(42.23)
var out float32
var rows *sql.Rows
for _, v := range types {
dbt.mustExec("CREATE TABLE test (value " + v + ")")
dbt.mustExec("INSERT INTO test VALUES (?)", in)
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if in != out {
dbt.Errorf("%s: %g != %g", v, in, out)
}
} else {
dbt.Errorf("%s: no data", v)
}
dbt.mustExec("DROP TABLE IF EXISTS test")
}
})
}
func TestString(t *testing.T) {
runTests(t, "TestString", dsn, func(dbt *DBTest) {
types := [6]string{"CHAR(255)", "VARCHAR(255)", "TINYTEXT", "TEXT", "MEDIUMTEXT", "LONGTEXT"}
in := "κόσμε üöäßñóùéàâÿœ'îë Árvíztűrő いろはにほへとちりぬるを イロハニホヘト דג סקרן чащах น่าฟังเอย"
var out string
var rows *sql.Rows
for _, v := range types {
dbt.mustExec("CREATE TABLE test (value " + v + ") CHARACTER SET utf8")
dbt.mustExec("INSERT INTO test VALUES (?)", in)
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if in != out {
dbt.Errorf("%s: %s != %s", v, in, out)
}
} else {
dbt.Errorf("%s: no data", v)
}
dbt.mustExec("DROP TABLE IF EXISTS test")
}
// BLOB
dbt.mustExec("CREATE TABLE test (id int, value BLOB) CHARACTER SET utf8")
id := 2
in = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, " +
"sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, " +
"sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. " +
"Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. " +
"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, " +
"sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, " +
"sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. " +
"Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
dbt.mustExec("INSERT INTO test VALUES (?, ?)", id, in)
err := dbt.db.QueryRow("SELECT value FROM test WHERE id = ?", id).Scan(&out)
if err != nil {
dbt.Fatalf("Error on BLOB-Query: %v", err)
} else if out != in {
dbt.Errorf("BLOB: %s != %s", in, out)
}
})
}
func TestDateTime(t *testing.T) {
type testmode struct {
selectSuffix string
args []interface{}
}
type timetest struct {
in interface{}
sOut string
tOut time.Time
tIsZero bool
}
type tester func(dbt *DBTest, rows *sql.Rows,
test *timetest, sqltype, resulttype, mode string)
type setup struct {
vartype string
dsnSuffix string
test tester
}
var (
modes = map[string]*testmode{
"text": &testmode{},
"binary": &testmode{" WHERE 1 = ?", []interface{}{1}},
}
timetests = map[string][]*timetest{
"DATE": {
{sDate, sDate, tDate, false},
{sDate0, sDate0, tDate0, true},
{tDate, sDate, tDate, false},
{tDate0, sDate0, tDate0, true},
},
"DATETIME": {
{sDateTime, sDateTime, tDateTime, false},
{sDateTime0, sDateTime0, tDate0, true},
{tDateTime, sDateTime, tDateTime, false},
{tDate0, sDateTime0, tDate0, true},
},
}
setups = []*setup{
{"string", "&parseTime=false", func(
dbt *DBTest, rows *sql.Rows, test *timetest, sqltype, resulttype, mode string) {
var sOut string
if err := rows.Scan(&sOut); err != nil {
dbt.Errorf("%s (%s %s): %v", sqltype, resulttype, mode, err)
} else if test.sOut != sOut {
dbt.Errorf("%s (%s %s): %s != %s", sqltype, resulttype, mode, test.sOut, sOut)
}
}},
{"time.Time", "&parseTime=true", func(
dbt *DBTest, rows *sql.Rows, test *timetest, sqltype, resulttype, mode string) {
var tOut time.Time
if err := rows.Scan(&tOut); err != nil {
dbt.Errorf("%s (%s %s): %v", sqltype, resulttype, mode, err)
} else if test.tOut != tOut || test.tIsZero != tOut.IsZero() {
dbt.Errorf("%s (%s %s): %s [%t] != %s [%t]", sqltype, resulttype, mode, test.tOut, test.tIsZero, tOut, tOut.IsZero())
}
}},
}
)
var s *setup
testTime := func(dbt *DBTest) {
var rows *sql.Rows
for sqltype, tests := range timetests {
dbt.mustExec("CREATE TABLE test (value " + sqltype + ")")
for _, test := range tests {
for mode, q := range modes {
dbt.mustExec("TRUNCATE test")
dbt.mustExec("INSERT INTO test VALUES (?)", test.in)
rows = dbt.mustQuery("SELECT value FROM test"+q.selectSuffix, q.args...)
if rows.Next() {
s.test(dbt, rows, test, sqltype, s.vartype, mode)
} else {
if err := rows.Err(); err != nil {
dbt.Errorf("%s (%s %s): %v",
sqltype, s.vartype, mode, err)
} else {
dbt.Errorf("%s (%s %s): no data",
sqltype, s.vartype, mode)
}
}
}
}
dbt.mustExec("DROP TABLE IF EXISTS test")
}
}
timeDsn := dsn + "&sql_mode=ALLOW_INVALID_DATES"
for _, v := range setups {
s = v
runTests(t, "TestDateTime", timeDsn+s.dsnSuffix, testTime)
}
}
func TestNULL(t *testing.T) {
runTests(t, "TestNULL", dsn, func(dbt *DBTest) {
nullStmt, err := dbt.db.Prepare("SELECT NULL")
if err != nil {
dbt.Fatal(err)
}
defer nullStmt.Close()
nonNullStmt, err := dbt.db.Prepare("SELECT 1")
if err != nil {
dbt.Fatal(err)
}
defer nonNullStmt.Close()
// NullBool
var nb sql.NullBool
// Invalid
err = nullStmt.QueryRow().Scan(&nb)
if err != nil {
dbt.Fatal(err)
}
if nb.Valid {
dbt.Error("Valid NullBool which should be invalid")
}
// Valid
err = nonNullStmt.QueryRow().Scan(&nb)
if err != nil {
dbt.Fatal(err)
}
if !nb.Valid {
dbt.Error("Invalid NullBool which should be valid")
} else if nb.Bool != true {
dbt.Errorf("Unexpected NullBool value: %t (should be true)", nb.Bool)
}
// NullFloat64
var nf sql.NullFloat64
// Invalid
err = nullStmt.QueryRow().Scan(&nf)
if err != nil {
dbt.Fatal(err)
}
if nf.Valid {
dbt.Error("Valid NullFloat64 which should be invalid")
}
// Valid
err = nonNullStmt.QueryRow().Scan(&nf)
if err != nil {
dbt.Fatal(err)
}
if !nf.Valid {
dbt.Error("Invalid NullFloat64 which should be valid")
} else if nf.Float64 != float64(1) {
dbt.Errorf("Unexpected NullFloat64 value: %f (should be 1.0)", nf.Float64)
}
// NullInt64
var ni sql.NullInt64
// Invalid
err = nullStmt.QueryRow().Scan(&ni)
if err != nil {
dbt.Fatal(err)
}
if ni.Valid {
dbt.Error("Valid NullInt64 which should be invalid")
}
// Valid
err = nonNullStmt.QueryRow().Scan(&ni)
if err != nil {
dbt.Fatal(err)
}
if !ni.Valid {
dbt.Error("Invalid NullInt64 which should be valid")
} else if ni.Int64 != int64(1) {
dbt.Errorf("Unexpected NullInt64 value: %d (should be 1)", ni.Int64)
}
// NullString
var ns sql.NullString
// Invalid
err = nullStmt.QueryRow().Scan(&ns)
if err != nil {
dbt.Fatal(err)
}
if ns.Valid {
dbt.Error("Valid NullString which should be invalid")
}
// Valid
err = nonNullStmt.QueryRow().Scan(&ns)
if err != nil {
dbt.Fatal(err)
}
if !ns.Valid {
dbt.Error("Invalid NullString which should be valid")
} else if ns.String != `1` {
dbt.Error("Unexpected NullString value:" + ns.String + " (should be `1`)")
}
// Insert NULL
dbt.mustExec("CREATE TABLE test (dummmy1 int, value int, dummy2 int)")
dbt.mustExec("INSERT INTO test VALUES (?, ?, ?)", 1, nil, 2)
var out interface{}
rows := dbt.mustQuery("SELECT * FROM test")
if rows.Next() {
rows.Scan(&out)
if out != nil {
dbt.Errorf("%v != nil", out)
}
} else {
dbt.Error("no data")
}
})
}
func TestLongData(t *testing.T) {
runTests(t, "TestLongData", dsn, func(dbt *DBTest) {
var maxAllowedPacketSize int
err := dbt.db.QueryRow("select @@max_allowed_packet").Scan(&maxAllowedPacketSize)
if err != nil {
dbt.Fatal(err)
}
maxAllowedPacketSize--
// don't get too ambitious
if maxAllowedPacketSize > 1<<25 {
maxAllowedPacketSize = 1 << 25
}
dbt.mustExec("CREATE TABLE test (value LONGBLOB)")
in := strings.Repeat(`0`, maxAllowedPacketSize+1)
var out string
var rows *sql.Rows
// Long text data
const nonDataQueryLen = 28 // length query w/o value
inS := in[:maxAllowedPacketSize-nonDataQueryLen]
dbt.mustExec("INSERT INTO test VALUES('" + inS + "')")
rows = dbt.mustQuery("SELECT value FROM test")
if rows.Next() {
rows.Scan(&out)
if inS != out {
dbt.Fatalf("LONGBLOB: length in: %d, length out: %d", len(inS), len(out))
}
if rows.Next() {
dbt.Error("LONGBLOB: unexpexted row")
}
} else {
dbt.Fatalf("LONGBLOB: no data")
}
// Empty table
dbt.mustExec("TRUNCATE TABLE test")
// Long binary data
dbt.mustExec("INSERT INTO test VALUES(?)", in)
rows = dbt.mustQuery("SELECT value FROM test WHERE 1=?", 1)
if rows.Next() {
rows.Scan(&out)
if in != out {
dbt.Fatalf("LONGBLOB: length in: %d, length out: %d", len(in), len(out))
}
if rows.Next() {
dbt.Error("LONGBLOB: unexpexted row")
}
} else {
dbt.Fatalf("LONGBLOB: no data")
}
})
}
func TestLoadData(t *testing.T) {
runTests(t, "TestLoadData", dsn, func(dbt *DBTest) {
verifyLoadDataResult := func() {
rows, err := dbt.db.Query("SELECT * FROM test")
if err != nil {
dbt.Fatal(err.Error())
}
i := 0
values := [4]string{
"a string",
"a string containing a \t",
"a string containing a \n",
"a string containing both \t\n",
}
var id int
var value string
for rows.Next() {
i++
err = rows.Scan(&id, &value)
if err != nil {
dbt.Fatal(err.Error())
}
if i != id {
dbt.Fatalf("%d != %d", i, id)
}
if values[i-1] != value {
dbt.Fatalf("%s != %s", values[i-1], value)
}
}
err = rows.Err()
if err != nil {
dbt.Fatal(err.Error())
}
if i != 4 {
dbt.Fatalf("Rows count mismatch. Got %d, want 4", i)
}
}
file, err := ioutil.TempFile("", "gotest")
defer os.Remove(file.Name())
if err != nil {
dbt.Fatal(err)
}
file.WriteString("1\ta string\n2\ta string containing a \\t\n3\ta string containing a \\n\n4\ta string containing both \\t\\n\n")
file.Close()
dbt.db.Exec("DROP TABLE IF EXISTS test")
dbt.mustExec("CREATE TABLE test (id INT NOT NULL PRIMARY KEY, value TEXT NOT NULL) CHARACTER SET utf8")
// Local File
RegisterLocalFile(file.Name())
dbt.mustExec(fmt.Sprintf("LOAD DATA LOCAL INFILE '%q' INTO TABLE test", file.Name()))
verifyLoadDataResult()
// negative test
_, err = dbt.db.Exec("LOAD DATA LOCAL INFILE 'doesnotexist' INTO TABLE test")
if err == nil {
dbt.Fatal("Load non-existent file didn't fail")
} else if err.Error() != "Local File 'doesnotexist' is not registered. Use the DSN parameter 'allowAllFiles=true' to allow all files" {
dbt.Fatal(err.Error())
}
// Empty table
dbt.mustExec("TRUNCATE TABLE test")
// Reader
RegisterReaderHandler("test", func() io.Reader {
file, err = os.Open(file.Name())
if err != nil {
dbt.Fatal(err)
}
return file
})
dbt.mustExec("LOAD DATA LOCAL INFILE 'Reader::test' INTO TABLE test")
verifyLoadDataResult()
// negative test
_, err = dbt.db.Exec("LOAD DATA LOCAL INFILE 'Reader::doesnotexist' INTO TABLE test")
if err == nil {
dbt.Fatal("Load non-existent Reader didn't fail")
} else if err.Error() != "Reader 'doesnotexist' is not registered" {
dbt.Fatal(err.Error())
}
})
}
func TestStrict(t *testing.T) {
// ALLOW_INVALID_DATES to get rid of stricter modes - we want to test for warnings, not errors
relaxedDsn := dsn + "&sql_mode=ALLOW_INVALID_DATES"
runTests(t, "TestStrict", relaxedDsn, func(dbt *DBTest) {
dbt.mustExec("CREATE TABLE test (a TINYINT NOT NULL, b CHAR(4))")
var queries = [...]struct {
in string
codes []string
}{
{"DROP TABLE IF EXISTS no_such_table", []string{"1051"}},
{"INSERT INTO test VALUES(10,'mysql'),(NULL,'test'),(300,'Open Source')", []string{"1265", "1048", "1264", "1265"}},
}
var err error
var checkWarnings = func(err error, mode string, idx int) {
if err == nil {
dbt.Errorf("Expected STRICT error on query [%s] %s", mode, queries[idx].in)
}
if warnings, ok := err.(MySQLWarnings); ok {
var codes = make([]string, len(warnings))
for i := range warnings {
codes[i] = warnings[i].Code
}
if len(codes) != len(queries[idx].codes) {
dbt.Errorf("Unexpected STRICT error count on query [%s] %s: Wanted %v, Got %v", mode, queries[idx].in, queries[idx].codes, codes)
}
for i := range warnings {
if codes[i] != queries[idx].codes[i] {
dbt.Errorf("Unexpected STRICT error codes on query [%s] %s: Wanted %v, Got %v", mode, queries[idx].in, queries[idx].codes, codes)
return
}
}
} else {
dbt.Errorf("Unexpected error on query [%s] %s: %s", mode, queries[idx].in, err.Error())
}
}
// text protocol
for i := range queries {
_, err = dbt.db.Exec(queries[i].in)
checkWarnings(err, "text", i)
}
var stmt *sql.Stmt
// binary protocol
for i := range queries {
stmt, err = dbt.db.Prepare(queries[i].in)
if err != nil {
dbt.Error("Error on preparing query %: ", queries[i].in, err.Error())
}
_, err = stmt.Exec()
checkWarnings(err, "binary", i)
err = stmt.Close()
if err != nil {
dbt.Error("Error on closing stmt for query %: ", queries[i].in, err.Error())
}
}
})
}
// Special cases
func TestRowsClose(t *testing.T) {
runTests(t, "TestRowsClose", dsn, func(dbt *DBTest) {
rows, err := dbt.db.Query("SELECT 1")
if err != nil {
dbt.Fatal(err)
}
err = rows.Close()
if err != nil {
dbt.Fatal(err)
}
if rows.Next() {
dbt.Fatal("Unexpected row after rows.Close()")
}
err = rows.Err()
if err != nil {
dbt.Fatal(err)
}
})
}
// dangling statements
// http://code.google.com/p/go/issues/detail?id=3865
func TestCloseStmtBeforeRows(t *testing.T) {
runTests(t, "TestCloseStmtBeforeRows", dsn, func(dbt *DBTest) {
stmt, err := dbt.db.Prepare("SELECT 1")
if err != nil {
dbt.Fatal(err)
}
rows, err := stmt.Query()
if err != nil {
stmt.Close()
dbt.Fatal(err)
}
defer rows.Close()
err = stmt.Close()
if err != nil {
dbt.Fatal(err)
}
if !rows.Next() {
dbt.Fatal("Getting row failed")
} else {
err = rows.Err()
if err != nil {
dbt.Fatal(err)
}
var out bool
err = rows.Scan(&out)
if err != nil {
dbt.Fatalf("Error on rows.Scan(): %v", err)
}
if out != true {
dbt.Errorf("true != %t", out)
}
}
})
}
// It is valid to have multiple Rows for the same Stmt
// http://code.google.com/p/go/issues/detail?id=3734
func TestStmtMultiRows(t *testing.T) {
runTests(t, "TestStmtMultiRows", dsn, func(dbt *DBTest) {
stmt, err := dbt.db.Prepare("SELECT 1 UNION SELECT 0")
if err != nil {
dbt.Fatal(err)
}
rows1, err := stmt.Query()
if err != nil {
stmt.Close()
dbt.Fatal(err)
}
defer rows1.Close()
rows2, err := stmt.Query()
if err != nil {
stmt.Close()
dbt.Fatal(err)
}
defer rows2.Close()
var out bool
// 1
if !rows1.Next() {
dbt.Fatal("1st rows1.Next failed")
} else {
err = rows1.Err()
if err != nil {
dbt.Fatal(err)
}
err = rows1.Scan(&out)
if err != nil {
dbt.Fatalf("Error on rows.Scan(): %v", err)
}
if out != true {
dbt.Errorf("true != %t", out)
}
}
if !rows2.Next() {
dbt.Fatal("1st rows2.Next failed")
} else {
err = rows2.Err()
if err != nil {
dbt.Fatal(err)
}
err = rows2.Scan(&out)
if err != nil {
dbt.Fatalf("Error on rows.Scan(): %v", err)
}
if out != true {
dbt.Errorf("true != %t", out)
}
}
// 2
if !rows1.Next() {
dbt.Fatal("2nd rows1.Next failed")
} else {
err = rows1.Err()
if err != nil {
dbt.Fatal(err)
}
err = rows1.Scan(&out)
if err != nil {
dbt.Fatalf("Error on rows.Scan(): %v", err)
}
if out != false {
dbt.Errorf("false != %t", out)
}
if rows1.Next() {
dbt.Fatal("Unexpected row on rows1")
}
err = rows1.Close()
if err != nil {
dbt.Fatal(err)
}
}
if !rows2.Next() {
dbt.Fatal("2nd rows2.Next failed")
} else {
err = rows2.Err()
if err != nil {
dbt.Fatal(err)
}
err = rows2.Scan(&out)
if err != nil {
dbt.Fatalf("Error on rows.Scan(): %v", err)
}
if out != false {
dbt.Errorf("false != %t", out)
}
if rows2.Next() {
dbt.Fatal("Unexpected row on rows2")
}
err = rows2.Close()
if err != nil {
dbt.Fatal(err)
}
}
})
}
func TestConcurrent(t *testing.T) {
if readBool(os.Getenv("MYSQL_TEST_CONCURRENT")) != true {
t.Log("CONCURRENT env var not set. Skipping TestConcurrent")
return
}
runTests(t, "TestConcurrent", dsn, func(dbt *DBTest) {
var max int
err := dbt.db.QueryRow("SELECT @@max_connections").Scan(&max)
if err != nil {
dbt.Fatalf("%v", err)
}
dbt.Logf("Testing up to %d concurrent connections \r\n", max)