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Diffstat (limited to 'src/pkg/database/sql/sql_test.go')
-rw-r--r--src/pkg/database/sql/sql_test.go1949
1 files changed, 0 insertions, 1949 deletions
diff --git a/src/pkg/database/sql/sql_test.go b/src/pkg/database/sql/sql_test.go
deleted file mode 100644
index 7971f1491..000000000
--- a/src/pkg/database/sql/sql_test.go
+++ /dev/null
@@ -1,1949 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sql
-
-import (
- "database/sql/driver"
- "errors"
- "fmt"
- "math/rand"
- "reflect"
- "runtime"
- "strings"
- "sync"
- "testing"
- "time"
-)
-
-func init() {
- type dbConn struct {
- db *DB
- c *driverConn
- }
- freedFrom := make(map[dbConn]string)
- putConnHook = func(db *DB, c *driverConn) {
- if c.listElem != nil {
- // print before panic, as panic may get lost due to conflicting panic
- // (all goroutines asleep) elsewhere, since we might not unlock
- // the mutex in freeConn here.
- println("double free of conn. conflicts are:\nA) " + freedFrom[dbConn{db, c}] + "\n\nand\nB) " + stack())
- panic("double free of conn.")
- }
- freedFrom[dbConn{db, c}] = stack()
- }
-}
-
-const fakeDBName = "foo"
-
-var chrisBirthday = time.Unix(123456789, 0)
-
-func newTestDB(t testing.TB, name string) *DB {
- db, err := Open("test", fakeDBName)
- if err != nil {
- t.Fatalf("Open: %v", err)
- }
- if _, err := db.Exec("WIPE"); err != nil {
- t.Fatalf("exec wipe: %v", err)
- }
- if name == "people" {
- exec(t, db, "CREATE|people|name=string,age=int32,photo=blob,dead=bool,bdate=datetime")
- exec(t, db, "INSERT|people|name=Alice,age=?,photo=APHOTO", 1)
- exec(t, db, "INSERT|people|name=Bob,age=?,photo=BPHOTO", 2)
- exec(t, db, "INSERT|people|name=Chris,age=?,photo=CPHOTO,bdate=?", 3, chrisBirthday)
- }
- if name == "magicquery" {
- // Magic table name and column, known by fakedb_test.go.
- exec(t, db, "CREATE|magicquery|op=string,millis=int32")
- exec(t, db, "INSERT|magicquery|op=sleep,millis=10")
- }
- return db
-}
-
-func exec(t testing.TB, db *DB, query string, args ...interface{}) {
- _, err := db.Exec(query, args...)
- if err != nil {
- t.Fatalf("Exec of %q: %v", query, err)
- }
-}
-
-func closeDB(t testing.TB, db *DB) {
- if e := recover(); e != nil {
- fmt.Printf("Panic: %v\n", e)
- panic(e)
- }
- defer setHookpostCloseConn(nil)
- setHookpostCloseConn(func(_ *fakeConn, err error) {
- if err != nil {
- t.Errorf("Error closing fakeConn: %v", err)
- }
- })
- for node, i := db.freeConn.Front(), 0; node != nil; node, i = node.Next(), i+1 {
- dc := node.Value.(*driverConn)
- if n := len(dc.openStmt); n > 0 {
- // Just a sanity check. This is legal in
- // general, but if we make the tests clean up
- // their statements first, then we can safely
- // verify this is always zero here, and any
- // other value is a leak.
- t.Errorf("while closing db, freeConn %d/%d had %d open stmts; want 0", i, db.freeConn.Len(), n)
- }
- }
- err := db.Close()
- if err != nil {
- t.Fatalf("error closing DB: %v", err)
- }
- db.mu.Lock()
- count := db.numOpen
- db.mu.Unlock()
- if count != 0 {
- t.Fatalf("%d connections still open after closing DB", db.numOpen)
- }
-}
-
-// numPrepares assumes that db has exactly 1 idle conn and returns
-// its count of calls to Prepare
-func numPrepares(t *testing.T, db *DB) int {
- if n := db.freeConn.Len(); n != 1 {
- t.Fatalf("free conns = %d; want 1", n)
- }
- return (db.freeConn.Front().Value.(*driverConn)).ci.(*fakeConn).numPrepare
-}
-
-func (db *DB) numDeps() int {
- db.mu.Lock()
- defer db.mu.Unlock()
- return len(db.dep)
-}
-
-// Dependencies are closed via a goroutine, so this polls waiting for
-// numDeps to fall to want, waiting up to d.
-func (db *DB) numDepsPollUntil(want int, d time.Duration) int {
- deadline := time.Now().Add(d)
- for {
- n := db.numDeps()
- if n <= want || time.Now().After(deadline) {
- return n
- }
- time.Sleep(50 * time.Millisecond)
- }
-}
-
-func (db *DB) numFreeConns() int {
- db.mu.Lock()
- defer db.mu.Unlock()
- return db.freeConn.Len()
-}
-
-func (db *DB) dumpDeps(t *testing.T) {
- for fc := range db.dep {
- db.dumpDep(t, 0, fc, map[finalCloser]bool{})
- }
-}
-
-func (db *DB) dumpDep(t *testing.T, depth int, dep finalCloser, seen map[finalCloser]bool) {
- seen[dep] = true
- indent := strings.Repeat(" ", depth)
- ds := db.dep[dep]
- for k := range ds {
- t.Logf("%s%T (%p) waiting for -> %T (%p)", indent, dep, dep, k, k)
- if fc, ok := k.(finalCloser); ok {
- if !seen[fc] {
- db.dumpDep(t, depth+1, fc, seen)
- }
- }
- }
-}
-
-func TestQuery(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- prepares0 := numPrepares(t, db)
- rows, err := db.Query("SELECT|people|age,name|")
- if err != nil {
- t.Fatalf("Query: %v", err)
- }
- type row struct {
- age int
- name string
- }
- got := []row{}
- for rows.Next() {
- var r row
- err = rows.Scan(&r.age, &r.name)
- if err != nil {
- t.Fatalf("Scan: %v", err)
- }
- got = append(got, r)
- }
- err = rows.Err()
- if err != nil {
- t.Fatalf("Err: %v", err)
- }
- want := []row{
- {age: 1, name: "Alice"},
- {age: 2, name: "Bob"},
- {age: 3, name: "Chris"},
- }
- if !reflect.DeepEqual(got, want) {
- t.Errorf("mismatch.\n got: %#v\nwant: %#v", got, want)
- }
-
- // And verify that the final rows.Next() call, which hit EOF,
- // also closed the rows connection.
- if n := db.numFreeConns(); n != 1 {
- t.Fatalf("free conns after query hitting EOF = %d; want 1", n)
- }
- if prepares := numPrepares(t, db) - prepares0; prepares != 1 {
- t.Errorf("executed %d Prepare statements; want 1", prepares)
- }
-}
-
-func TestByteOwnership(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- rows, err := db.Query("SELECT|people|name,photo|")
- if err != nil {
- t.Fatalf("Query: %v", err)
- }
- type row struct {
- name []byte
- photo RawBytes
- }
- got := []row{}
- for rows.Next() {
- var r row
- err = rows.Scan(&r.name, &r.photo)
- if err != nil {
- t.Fatalf("Scan: %v", err)
- }
- got = append(got, r)
- }
- corruptMemory := []byte("\xffPHOTO")
- want := []row{
- {name: []byte("Alice"), photo: corruptMemory},
- {name: []byte("Bob"), photo: corruptMemory},
- {name: []byte("Chris"), photo: corruptMemory},
- }
- if !reflect.DeepEqual(got, want) {
- t.Errorf("mismatch.\n got: %#v\nwant: %#v", got, want)
- }
-
- var photo RawBytes
- err = db.QueryRow("SELECT|people|photo|name=?", "Alice").Scan(&photo)
- if err == nil {
- t.Error("want error scanning into RawBytes from QueryRow")
- }
-}
-
-func TestRowsColumns(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- rows, err := db.Query("SELECT|people|age,name|")
- if err != nil {
- t.Fatalf("Query: %v", err)
- }
- cols, err := rows.Columns()
- if err != nil {
- t.Fatalf("Columns: %v", err)
- }
- want := []string{"age", "name"}
- if !reflect.DeepEqual(cols, want) {
- t.Errorf("got %#v; want %#v", cols, want)
- }
- if err := rows.Close(); err != nil {
- t.Errorf("error closing rows: %s", err)
- }
-}
-
-func TestQueryRow(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- var name string
- var age int
- var birthday time.Time
-
- err := db.QueryRow("SELECT|people|age,name|age=?", 3).Scan(&age)
- if err == nil || !strings.Contains(err.Error(), "expected 2 destination arguments") {
- t.Errorf("expected error from wrong number of arguments; actually got: %v", err)
- }
-
- err = db.QueryRow("SELECT|people|bdate|age=?", 3).Scan(&birthday)
- if err != nil || !birthday.Equal(chrisBirthday) {
- t.Errorf("chris birthday = %v, err = %v; want %v", birthday, err, chrisBirthday)
- }
-
- err = db.QueryRow("SELECT|people|age,name|age=?", 2).Scan(&age, &name)
- if err != nil {
- t.Fatalf("age QueryRow+Scan: %v", err)
- }
- if name != "Bob" {
- t.Errorf("expected name Bob, got %q", name)
- }
- if age != 2 {
- t.Errorf("expected age 2, got %d", age)
- }
-
- err = db.QueryRow("SELECT|people|age,name|name=?", "Alice").Scan(&age, &name)
- if err != nil {
- t.Fatalf("name QueryRow+Scan: %v", err)
- }
- if name != "Alice" {
- t.Errorf("expected name Alice, got %q", name)
- }
- if age != 1 {
- t.Errorf("expected age 1, got %d", age)
- }
-
- var photo []byte
- err = db.QueryRow("SELECT|people|photo|name=?", "Alice").Scan(&photo)
- if err != nil {
- t.Fatalf("photo QueryRow+Scan: %v", err)
- }
- want := []byte("APHOTO")
- if !reflect.DeepEqual(photo, want) {
- t.Errorf("photo = %q; want %q", photo, want)
- }
-}
-
-func TestStatementErrorAfterClose(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- stmt, err := db.Prepare("SELECT|people|age|name=?")
- if err != nil {
- t.Fatalf("Prepare: %v", err)
- }
- err = stmt.Close()
- if err != nil {
- t.Fatalf("Close: %v", err)
- }
- var name string
- err = stmt.QueryRow("foo").Scan(&name)
- if err == nil {
- t.Errorf("expected error from QueryRow.Scan after Stmt.Close")
- }
-}
-
-func TestStatementQueryRow(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- stmt, err := db.Prepare("SELECT|people|age|name=?")
- if err != nil {
- t.Fatalf("Prepare: %v", err)
- }
- defer stmt.Close()
- var age int
- for n, tt := range []struct {
- name string
- want int
- }{
- {"Alice", 1},
- {"Bob", 2},
- {"Chris", 3},
- } {
- if err := stmt.QueryRow(tt.name).Scan(&age); err != nil {
- t.Errorf("%d: on %q, QueryRow/Scan: %v", n, tt.name, err)
- } else if age != tt.want {
- t.Errorf("%d: age=%d, want %d", n, age, tt.want)
- }
- }
-}
-
-// golang.org/issue/3734
-func TestStatementQueryRowConcurrent(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- stmt, err := db.Prepare("SELECT|people|age|name=?")
- if err != nil {
- t.Fatalf("Prepare: %v", err)
- }
- defer stmt.Close()
-
- const n = 10
- ch := make(chan error, n)
- for i := 0; i < n; i++ {
- go func() {
- var age int
- err := stmt.QueryRow("Alice").Scan(&age)
- if err == nil && age != 1 {
- err = fmt.Errorf("unexpected age %d", age)
- }
- ch <- err
- }()
- }
- for i := 0; i < n; i++ {
- if err := <-ch; err != nil {
- t.Error(err)
- }
- }
-}
-
-// just a test of fakedb itself
-func TestBogusPreboundParameters(t *testing.T) {
- db := newTestDB(t, "foo")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
- _, err := db.Prepare("INSERT|t1|name=?,age=bogusconversion")
- if err == nil {
- t.Fatalf("expected error")
- }
- if err.Error() != `fakedb: invalid conversion to int32 from "bogusconversion"` {
- t.Errorf("unexpected error: %v", err)
- }
-}
-
-func TestExec(t *testing.T) {
- db := newTestDB(t, "foo")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
- stmt, err := db.Prepare("INSERT|t1|name=?,age=?")
- if err != nil {
- t.Errorf("Stmt, err = %v, %v", stmt, err)
- }
- defer stmt.Close()
-
- type execTest struct {
- args []interface{}
- wantErr string
- }
- execTests := []execTest{
- // Okay:
- {[]interface{}{"Brad", 31}, ""},
- {[]interface{}{"Brad", int64(31)}, ""},
- {[]interface{}{"Bob", "32"}, ""},
- {[]interface{}{7, 9}, ""},
-
- // Invalid conversions:
- {[]interface{}{"Brad", int64(0xFFFFFFFF)}, "sql: converting argument #1's type: sql/driver: value 4294967295 overflows int32"},
- {[]interface{}{"Brad", "strconv fail"}, "sql: converting argument #1's type: sql/driver: value \"strconv fail\" can't be converted to int32"},
-
- // Wrong number of args:
- {[]interface{}{}, "sql: expected 2 arguments, got 0"},
- {[]interface{}{1, 2, 3}, "sql: expected 2 arguments, got 3"},
- }
- for n, et := range execTests {
- _, err := stmt.Exec(et.args...)
- errStr := ""
- if err != nil {
- errStr = err.Error()
- }
- if errStr != et.wantErr {
- t.Errorf("stmt.Execute #%d: for %v, got error %q, want error %q",
- n, et.args, errStr, et.wantErr)
- }
- }
-}
-
-func TestTxStmt(t *testing.T) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
- stmt, err := db.Prepare("INSERT|t1|name=?,age=?")
- if err != nil {
- t.Fatalf("Stmt, err = %v, %v", stmt, err)
- }
- defer stmt.Close()
- tx, err := db.Begin()
- if err != nil {
- t.Fatalf("Begin = %v", err)
- }
- txs := tx.Stmt(stmt)
- defer txs.Close()
- _, err = txs.Exec("Bobby", 7)
- if err != nil {
- t.Fatalf("Exec = %v", err)
- }
- err = tx.Commit()
- if err != nil {
- t.Fatalf("Commit = %v", err)
- }
-}
-
-// Issue: http://golang.org/issue/2784
-// This test didn't fail before because we got lucky with the fakedb driver.
-// It was failing, and now not, in github.com/bradfitz/go-sql-test
-func TestTxQuery(t *testing.T) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
- exec(t, db, "INSERT|t1|name=Alice")
-
- tx, err := db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- defer tx.Rollback()
-
- r, err := tx.Query("SELECT|t1|name|")
- if err != nil {
- t.Fatal(err)
- }
- defer r.Close()
-
- if !r.Next() {
- if r.Err() != nil {
- t.Fatal(r.Err())
- }
- t.Fatal("expected one row")
- }
-
- var x string
- err = r.Scan(&x)
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func TestTxQueryInvalid(t *testing.T) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
-
- tx, err := db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- defer tx.Rollback()
-
- _, err = tx.Query("SELECT|t1|name|")
- if err == nil {
- t.Fatal("Error expected")
- }
-}
-
-// Tests fix for issue 4433, that retries in Begin happen when
-// conn.Begin() returns ErrBadConn
-func TestTxErrBadConn(t *testing.T) {
- db, err := Open("test", fakeDBName+";badConn")
- if err != nil {
- t.Fatalf("Open: %v", err)
- }
- if _, err := db.Exec("WIPE"); err != nil {
- t.Fatalf("exec wipe: %v", err)
- }
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
- stmt, err := db.Prepare("INSERT|t1|name=?,age=?")
- if err != nil {
- t.Fatalf("Stmt, err = %v, %v", stmt, err)
- }
- defer stmt.Close()
- tx, err := db.Begin()
- if err != nil {
- t.Fatalf("Begin = %v", err)
- }
- txs := tx.Stmt(stmt)
- defer txs.Close()
- _, err = txs.Exec("Bobby", 7)
- if err != nil {
- t.Fatalf("Exec = %v", err)
- }
- err = tx.Commit()
- if err != nil {
- t.Fatalf("Commit = %v", err)
- }
-}
-
-// Tests fix for issue 2542, that we release a lock when querying on
-// a closed connection.
-func TestIssue2542Deadlock(t *testing.T) {
- db := newTestDB(t, "people")
- closeDB(t, db)
- for i := 0; i < 2; i++ {
- _, err := db.Query("SELECT|people|age,name|")
- if err == nil {
- t.Fatalf("expected error")
- }
- }
-}
-
-// From golang.org/issue/3865
-func TestCloseStmtBeforeRows(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- s, err := db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
-
- r, err := s.Query()
- if err != nil {
- s.Close()
- t.Fatal(err)
- }
-
- err = s.Close()
- if err != nil {
- t.Fatal(err)
- }
-
- r.Close()
-}
-
-// Tests fix for issue 2788, that we bind nil to a []byte if the
-// value in the column is sql null
-func TestNullByteSlice(t *testing.T) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t|id=int32,name=nullstring")
- exec(t, db, "INSERT|t|id=10,name=?", nil)
-
- var name []byte
-
- err := db.QueryRow("SELECT|t|name|id=?", 10).Scan(&name)
- if err != nil {
- t.Fatal(err)
- }
- if name != nil {
- t.Fatalf("name []byte should be nil for null column value, got: %#v", name)
- }
-
- exec(t, db, "INSERT|t|id=11,name=?", "bob")
- err = db.QueryRow("SELECT|t|name|id=?", 11).Scan(&name)
- if err != nil {
- t.Fatal(err)
- }
- if string(name) != "bob" {
- t.Fatalf("name []byte should be bob, got: %q", string(name))
- }
-}
-
-func TestPointerParamsAndScans(t *testing.T) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t|id=int32,name=nullstring")
-
- bob := "bob"
- var name *string
-
- name = &bob
- exec(t, db, "INSERT|t|id=10,name=?", name)
- name = nil
- exec(t, db, "INSERT|t|id=20,name=?", name)
-
- err := db.QueryRow("SELECT|t|name|id=?", 10).Scan(&name)
- if err != nil {
- t.Fatalf("querying id 10: %v", err)
- }
- if name == nil {
- t.Errorf("id 10's name = nil; want bob")
- } else if *name != "bob" {
- t.Errorf("id 10's name = %q; want bob", *name)
- }
-
- err = db.QueryRow("SELECT|t|name|id=?", 20).Scan(&name)
- if err != nil {
- t.Fatalf("querying id 20: %v", err)
- }
- if name != nil {
- t.Errorf("id 20 = %q; want nil", *name)
- }
-}
-
-func TestQueryRowClosingStmt(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- var name string
- var age int
- err := db.QueryRow("SELECT|people|age,name|age=?", 3).Scan(&age, &name)
- if err != nil {
- t.Fatal(err)
- }
- if db.freeConn.Len() != 1 {
- t.Fatalf("expected 1 free conn")
- }
- fakeConn := (db.freeConn.Front().Value.(*driverConn)).ci.(*fakeConn)
- if made, closed := fakeConn.stmtsMade, fakeConn.stmtsClosed; made != closed {
- t.Errorf("statement close mismatch: made %d, closed %d", made, closed)
- }
-}
-
-// Test issue 6651
-func TestIssue6651(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- var v string
-
- want := "error in rows.Next"
- rowsCursorNextHook = func(dest []driver.Value) error {
- return fmt.Errorf(want)
- }
- defer func() { rowsCursorNextHook = nil }()
- err := db.QueryRow("SELECT|people|name|").Scan(&v)
- if err == nil || err.Error() != want {
- t.Errorf("error = %q; want %q", err, want)
- }
- rowsCursorNextHook = nil
-
- want = "error in rows.Close"
- rowsCloseHook = func(rows *Rows, err *error) {
- *err = fmt.Errorf(want)
- }
- defer func() { rowsCloseHook = nil }()
- err = db.QueryRow("SELECT|people|name|").Scan(&v)
- if err == nil || err.Error() != want {
- t.Errorf("error = %q; want %q", err, want)
- }
-}
-
-type nullTestRow struct {
- nullParam interface{}
- notNullParam interface{}
- scanNullVal interface{}
-}
-
-type nullTestSpec struct {
- nullType string
- notNullType string
- rows [6]nullTestRow
-}
-
-func TestNullStringParam(t *testing.T) {
- spec := nullTestSpec{"nullstring", "string", [6]nullTestRow{
- {NullString{"aqua", true}, "", NullString{"aqua", true}},
- {NullString{"brown", false}, "", NullString{"", false}},
- {"chartreuse", "", NullString{"chartreuse", true}},
- {NullString{"darkred", true}, "", NullString{"darkred", true}},
- {NullString{"eel", false}, "", NullString{"", false}},
- {"foo", NullString{"black", false}, nil},
- }}
- nullTestRun(t, spec)
-}
-
-func TestNullInt64Param(t *testing.T) {
- spec := nullTestSpec{"nullint64", "int64", [6]nullTestRow{
- {NullInt64{31, true}, 1, NullInt64{31, true}},
- {NullInt64{-22, false}, 1, NullInt64{0, false}},
- {22, 1, NullInt64{22, true}},
- {NullInt64{33, true}, 1, NullInt64{33, true}},
- {NullInt64{222, false}, 1, NullInt64{0, false}},
- {0, NullInt64{31, false}, nil},
- }}
- nullTestRun(t, spec)
-}
-
-func TestNullFloat64Param(t *testing.T) {
- spec := nullTestSpec{"nullfloat64", "float64", [6]nullTestRow{
- {NullFloat64{31.2, true}, 1, NullFloat64{31.2, true}},
- {NullFloat64{13.1, false}, 1, NullFloat64{0, false}},
- {-22.9, 1, NullFloat64{-22.9, true}},
- {NullFloat64{33.81, true}, 1, NullFloat64{33.81, true}},
- {NullFloat64{222, false}, 1, NullFloat64{0, false}},
- {10, NullFloat64{31.2, false}, nil},
- }}
- nullTestRun(t, spec)
-}
-
-func TestNullBoolParam(t *testing.T) {
- spec := nullTestSpec{"nullbool", "bool", [6]nullTestRow{
- {NullBool{false, true}, true, NullBool{false, true}},
- {NullBool{true, false}, false, NullBool{false, false}},
- {true, true, NullBool{true, true}},
- {NullBool{true, true}, false, NullBool{true, true}},
- {NullBool{true, false}, true, NullBool{false, false}},
- {true, NullBool{true, false}, nil},
- }}
- nullTestRun(t, spec)
-}
-
-func nullTestRun(t *testing.T, spec nullTestSpec) {
- db := newTestDB(t, "")
- defer closeDB(t, db)
- exec(t, db, fmt.Sprintf("CREATE|t|id=int32,name=string,nullf=%s,notnullf=%s", spec.nullType, spec.notNullType))
-
- // Inserts with db.Exec:
- exec(t, db, "INSERT|t|id=?,name=?,nullf=?,notnullf=?", 1, "alice", spec.rows[0].nullParam, spec.rows[0].notNullParam)
- exec(t, db, "INSERT|t|id=?,name=?,nullf=?,notnullf=?", 2, "bob", spec.rows[1].nullParam, spec.rows[1].notNullParam)
-
- // Inserts with a prepared statement:
- stmt, err := db.Prepare("INSERT|t|id=?,name=?,nullf=?,notnullf=?")
- if err != nil {
- t.Fatalf("prepare: %v", err)
- }
- defer stmt.Close()
- if _, err := stmt.Exec(3, "chris", spec.rows[2].nullParam, spec.rows[2].notNullParam); err != nil {
- t.Errorf("exec insert chris: %v", err)
- }
- if _, err := stmt.Exec(4, "dave", spec.rows[3].nullParam, spec.rows[3].notNullParam); err != nil {
- t.Errorf("exec insert dave: %v", err)
- }
- if _, err := stmt.Exec(5, "eleanor", spec.rows[4].nullParam, spec.rows[4].notNullParam); err != nil {
- t.Errorf("exec insert eleanor: %v", err)
- }
-
- // Can't put null val into non-null col
- if _, err := stmt.Exec(6, "bob", spec.rows[5].nullParam, spec.rows[5].notNullParam); err == nil {
- t.Errorf("expected error inserting nil val with prepared statement Exec")
- }
-
- _, err = db.Exec("INSERT|t|id=?,name=?,nullf=?", 999, nil, nil)
- if err == nil {
- // TODO: this test fails, but it's just because
- // fakeConn implements the optional Execer interface,
- // so arguably this is the correct behavior. But
- // maybe I should flesh out the fakeConn.Exec
- // implementation so this properly fails.
- // t.Errorf("expected error inserting nil name with Exec")
- }
-
- paramtype := reflect.TypeOf(spec.rows[0].nullParam)
- bindVal := reflect.New(paramtype).Interface()
-
- for i := 0; i < 5; i++ {
- id := i + 1
- if err := db.QueryRow("SELECT|t|nullf|id=?", id).Scan(bindVal); err != nil {
- t.Errorf("id=%d Scan: %v", id, err)
- }
- bindValDeref := reflect.ValueOf(bindVal).Elem().Interface()
- if !reflect.DeepEqual(bindValDeref, spec.rows[i].scanNullVal) {
- t.Errorf("id=%d got %#v, want %#v", id, bindValDeref, spec.rows[i].scanNullVal)
- }
- }
-}
-
-// golang.org/issue/4859
-func TestQueryRowNilScanDest(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- var name *string // nil pointer
- err := db.QueryRow("SELECT|people|name|").Scan(name)
- want := "sql: Scan error on column index 0: destination pointer is nil"
- if err == nil || err.Error() != want {
- t.Errorf("error = %q; want %q", err.Error(), want)
- }
-}
-
-func TestIssue4902(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- driver := db.driver.(*fakeDriver)
- opens0 := driver.openCount
-
- var stmt *Stmt
- var err error
- for i := 0; i < 10; i++ {
- stmt, err = db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- err = stmt.Close()
- if err != nil {
- t.Fatal(err)
- }
- }
-
- opens := driver.openCount - opens0
- if opens > 1 {
- t.Errorf("opens = %d; want <= 1", opens)
- t.Logf("db = %#v", db)
- t.Logf("driver = %#v", driver)
- t.Logf("stmt = %#v", stmt)
- }
-}
-
-// Issue 3857
-// This used to deadlock.
-func TestSimultaneousQueries(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- tx, err := db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- defer tx.Rollback()
-
- r1, err := tx.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- defer r1.Close()
-
- r2, err := tx.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- defer r2.Close()
-}
-
-func TestMaxIdleConns(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- tx, err := db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- tx.Commit()
- if got := db.freeConn.Len(); got != 1 {
- t.Errorf("freeConns = %d; want 1", got)
- }
-
- db.SetMaxIdleConns(0)
-
- if got := db.freeConn.Len(); got != 0 {
- t.Errorf("freeConns after set to zero = %d; want 0", got)
- }
-
- tx, err = db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- tx.Commit()
- if got := db.freeConn.Len(); got != 0 {
- t.Errorf("freeConns = %d; want 0", got)
- }
-}
-
-func TestMaxOpenConns(t *testing.T) {
- if testing.Short() {
- t.Skip("skipping in short mode")
- }
- defer setHookpostCloseConn(nil)
- setHookpostCloseConn(func(_ *fakeConn, err error) {
- if err != nil {
- t.Errorf("Error closing fakeConn: %v", err)
- }
- })
-
- db := newTestDB(t, "magicquery")
- defer closeDB(t, db)
-
- driver := db.driver.(*fakeDriver)
-
- // Force the number of open connections to 0 so we can get an accurate
- // count for the test
- db.SetMaxIdleConns(0)
-
- if g, w := db.numFreeConns(), 0; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(0, time.Second); n > 0 {
- t.Errorf("number of dependencies = %d; expected 0", n)
- db.dumpDeps(t)
- }
-
- driver.mu.Lock()
- opens0 := driver.openCount
- closes0 := driver.closeCount
- driver.mu.Unlock()
-
- db.SetMaxIdleConns(10)
- db.SetMaxOpenConns(10)
-
- stmt, err := db.Prepare("SELECT|magicquery|op|op=?,millis=?")
- if err != nil {
- t.Fatal(err)
- }
-
- // Start 50 parallel slow queries.
- const (
- nquery = 50
- sleepMillis = 25
- nbatch = 2
- )
- var wg sync.WaitGroup
- for batch := 0; batch < nbatch; batch++ {
- for i := 0; i < nquery; i++ {
- wg.Add(1)
- go func() {
- defer wg.Done()
- var op string
- if err := stmt.QueryRow("sleep", sleepMillis).Scan(&op); err != nil && err != ErrNoRows {
- t.Error(err)
- }
- }()
- }
- // Sleep for twice the expected length of time for the
- // batch of 50 queries above to finish before starting
- // the next round.
- time.Sleep(2 * sleepMillis * time.Millisecond)
- }
- wg.Wait()
-
- if g, w := db.numFreeConns(), 10; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(20, time.Second); n > 20 {
- t.Errorf("number of dependencies = %d; expected <= 20", n)
- db.dumpDeps(t)
- }
-
- driver.mu.Lock()
- opens := driver.openCount - opens0
- closes := driver.closeCount - closes0
- driver.mu.Unlock()
-
- if opens > 10 {
- t.Logf("open calls = %d", opens)
- t.Logf("close calls = %d", closes)
- t.Errorf("db connections opened = %d; want <= 10", opens)
- db.dumpDeps(t)
- }
-
- if err := stmt.Close(); err != nil {
- t.Fatal(err)
- }
-
- if g, w := db.numFreeConns(), 10; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(10, time.Second); n > 10 {
- t.Errorf("number of dependencies = %d; expected <= 10", n)
- db.dumpDeps(t)
- }
-
- db.SetMaxOpenConns(5)
-
- if g, w := db.numFreeConns(), 5; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(5, time.Second); n > 5 {
- t.Errorf("number of dependencies = %d; expected 0", n)
- db.dumpDeps(t)
- }
-
- db.SetMaxOpenConns(0)
-
- if g, w := db.numFreeConns(), 5; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(5, time.Second); n > 5 {
- t.Errorf("number of dependencies = %d; expected 0", n)
- db.dumpDeps(t)
- }
-
- db.SetMaxIdleConns(0)
-
- if g, w := db.numFreeConns(), 0; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(0, time.Second); n > 0 {
- t.Errorf("number of dependencies = %d; expected 0", n)
- db.dumpDeps(t)
- }
-}
-
-func TestSingleOpenConn(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- db.SetMaxOpenConns(1)
-
- rows, err := db.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- if err = rows.Close(); err != nil {
- t.Fatal(err)
- }
- // shouldn't deadlock
- rows, err = db.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- if err = rows.Close(); err != nil {
- t.Fatal(err)
- }
-}
-
-// golang.org/issue/5323
-func TestStmtCloseDeps(t *testing.T) {
- if testing.Short() {
- t.Skip("skipping in short mode")
- }
- defer setHookpostCloseConn(nil)
- setHookpostCloseConn(func(_ *fakeConn, err error) {
- if err != nil {
- t.Errorf("Error closing fakeConn: %v", err)
- }
- })
-
- db := newTestDB(t, "magicquery")
- defer closeDB(t, db)
-
- driver := db.driver.(*fakeDriver)
-
- driver.mu.Lock()
- opens0 := driver.openCount
- closes0 := driver.closeCount
- driver.mu.Unlock()
- openDelta0 := opens0 - closes0
-
- stmt, err := db.Prepare("SELECT|magicquery|op|op=?,millis=?")
- if err != nil {
- t.Fatal(err)
- }
-
- // Start 50 parallel slow queries.
- const (
- nquery = 50
- sleepMillis = 25
- nbatch = 2
- )
- var wg sync.WaitGroup
- for batch := 0; batch < nbatch; batch++ {
- for i := 0; i < nquery; i++ {
- wg.Add(1)
- go func() {
- defer wg.Done()
- var op string
- if err := stmt.QueryRow("sleep", sleepMillis).Scan(&op); err != nil && err != ErrNoRows {
- t.Error(err)
- }
- }()
- }
- // Sleep for twice the expected length of time for the
- // batch of 50 queries above to finish before starting
- // the next round.
- time.Sleep(2 * sleepMillis * time.Millisecond)
- }
- wg.Wait()
-
- if g, w := db.numFreeConns(), 2; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(4, time.Second); n > 4 {
- t.Errorf("number of dependencies = %d; expected <= 4", n)
- db.dumpDeps(t)
- }
-
- driver.mu.Lock()
- opens := driver.openCount - opens0
- closes := driver.closeCount - closes0
- openDelta := (driver.openCount - driver.closeCount) - openDelta0
- driver.mu.Unlock()
-
- if openDelta > 2 {
- t.Logf("open calls = %d", opens)
- t.Logf("close calls = %d", closes)
- t.Logf("open delta = %d", openDelta)
- t.Errorf("db connections opened = %d; want <= 2", openDelta)
- db.dumpDeps(t)
- }
-
- if len(stmt.css) > nquery {
- t.Errorf("len(stmt.css) = %d; want <= %d", len(stmt.css), nquery)
- }
-
- if err := stmt.Close(); err != nil {
- t.Fatal(err)
- }
-
- if g, w := db.numFreeConns(), 2; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(2, time.Second); n > 2 {
- t.Errorf("number of dependencies = %d; expected <= 2", n)
- db.dumpDeps(t)
- }
-
- db.SetMaxIdleConns(0)
-
- if g, w := db.numFreeConns(), 0; g != w {
- t.Errorf("free conns = %d; want %d", g, w)
- }
-
- if n := db.numDepsPollUntil(0, time.Second); n > 0 {
- t.Errorf("number of dependencies = %d; expected 0", n)
- db.dumpDeps(t)
- }
-}
-
-// golang.org/issue/5046
-func TestCloseConnBeforeStmts(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- defer setHookpostCloseConn(nil)
- setHookpostCloseConn(func(_ *fakeConn, err error) {
- if err != nil {
- t.Errorf("Error closing fakeConn: %v; from %s", err, stack())
- db.dumpDeps(t)
- t.Errorf("DB = %#v", db)
- }
- })
-
- stmt, err := db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
-
- if db.freeConn.Len() != 1 {
- t.Fatalf("expected 1 freeConn; got %d", db.freeConn.Len())
- }
- dc := db.freeConn.Front().Value.(*driverConn)
- if dc.closed {
- t.Errorf("conn shouldn't be closed")
- }
-
- if n := len(dc.openStmt); n != 1 {
- t.Errorf("driverConn num openStmt = %d; want 1", n)
- }
- err = db.Close()
- if err != nil {
- t.Errorf("db Close = %v", err)
- }
- if !dc.closed {
- t.Errorf("after db.Close, driverConn should be closed")
- }
- if n := len(dc.openStmt); n != 0 {
- t.Errorf("driverConn num openStmt = %d; want 0", n)
- }
-
- err = stmt.Close()
- if err != nil {
- t.Errorf("Stmt close = %v", err)
- }
-
- if !dc.closed {
- t.Errorf("conn should be closed")
- }
- if dc.ci != nil {
- t.Errorf("after Stmt Close, driverConn's Conn interface should be nil")
- }
-}
-
-// golang.org/issue/5283: don't release the Rows' connection in Close
-// before calling Stmt.Close.
-func TestRowsCloseOrder(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- db.SetMaxIdleConns(0)
- setStrictFakeConnClose(t)
- defer setStrictFakeConnClose(nil)
-
- rows, err := db.Query("SELECT|people|age,name|")
- if err != nil {
- t.Fatal(err)
- }
- err = rows.Close()
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func TestRowsImplicitClose(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- rows, err := db.Query("SELECT|people|age,name|")
- if err != nil {
- t.Fatal(err)
- }
-
- want, fail := 2, errors.New("fail")
- r := rows.rowsi.(*rowsCursor)
- r.errPos, r.err = want, fail
-
- got := 0
- for rows.Next() {
- got++
- }
- if got != want {
- t.Errorf("got %d rows, want %d", got, want)
- }
- if err := rows.Err(); err != fail {
- t.Errorf("got error %v, want %v", err, fail)
- }
- if !r.closed {
- t.Errorf("r.closed is false, want true")
- }
-}
-
-func TestStmtCloseOrder(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- db.SetMaxIdleConns(0)
- setStrictFakeConnClose(t)
- defer setStrictFakeConnClose(nil)
-
- _, err := db.Query("SELECT|non_existent|name|")
- if err == nil {
- t.Fatal("Quering non-existent table should fail")
- }
-}
-
-// golang.org/issue/5781
-func TestErrBadConnReconnect(t *testing.T) {
- db := newTestDB(t, "foo")
- defer closeDB(t, db)
- exec(t, db, "CREATE|t1|name=string,age=int32,dead=bool")
-
- simulateBadConn := func(name string, hook *func() bool, op func() error) {
- broken, retried := false, false
- numOpen := db.numOpen
-
- // simulate a broken connection on the first try
- *hook = func() bool {
- if !broken {
- broken = true
- return true
- }
- retried = true
- return false
- }
-
- if err := op(); err != nil {
- t.Errorf(name+": %v", err)
- return
- }
-
- if !broken || !retried {
- t.Error(name + ": Failed to simulate broken connection")
- }
- *hook = nil
-
- if numOpen != db.numOpen {
- t.Errorf(name+": leaked %d connection(s)!", db.numOpen-numOpen)
- numOpen = db.numOpen
- }
- }
-
- // db.Exec
- dbExec := func() error {
- _, err := db.Exec("INSERT|t1|name=?,age=?,dead=?", "Gordon", 3, true)
- return err
- }
- simulateBadConn("db.Exec prepare", &hookPrepareBadConn, dbExec)
- simulateBadConn("db.Exec exec", &hookExecBadConn, dbExec)
-
- // db.Query
- dbQuery := func() error {
- rows, err := db.Query("SELECT|t1|age,name|")
- if err == nil {
- err = rows.Close()
- }
- return err
- }
- simulateBadConn("db.Query prepare", &hookPrepareBadConn, dbQuery)
- simulateBadConn("db.Query query", &hookQueryBadConn, dbQuery)
-
- // db.Prepare
- simulateBadConn("db.Prepare", &hookPrepareBadConn, func() error {
- stmt, err := db.Prepare("INSERT|t1|name=?,age=?,dead=?")
- if err != nil {
- return err
- }
- stmt.Close()
- return nil
- })
-
- // stmt.Exec
- stmt1, err := db.Prepare("INSERT|t1|name=?,age=?,dead=?")
- if err != nil {
- t.Fatalf("prepare: %v", err)
- }
- defer stmt1.Close()
- // make sure we must prepare the stmt first
- for _, cs := range stmt1.css {
- cs.dc.inUse = true
- }
-
- stmtExec := func() error {
- _, err := stmt1.Exec("Gopher", 3, false)
- return err
- }
- simulateBadConn("stmt.Exec prepare", &hookPrepareBadConn, stmtExec)
- simulateBadConn("stmt.Exec exec", &hookExecBadConn, stmtExec)
-
- // stmt.Query
- stmt2, err := db.Prepare("SELECT|t1|age,name|")
- if err != nil {
- t.Fatalf("prepare: %v", err)
- }
- defer stmt2.Close()
- // make sure we must prepare the stmt first
- for _, cs := range stmt2.css {
- cs.dc.inUse = true
- }
-
- stmtQuery := func() error {
- rows, err := stmt2.Query()
- if err == nil {
- err = rows.Close()
- }
- return err
- }
- simulateBadConn("stmt.Query prepare", &hookPrepareBadConn, stmtQuery)
- simulateBadConn("stmt.Query exec", &hookQueryBadConn, stmtQuery)
-}
-
-type concurrentTest interface {
- init(t testing.TB, db *DB)
- finish(t testing.TB)
- test(t testing.TB) error
-}
-
-type concurrentDBQueryTest struct {
- db *DB
-}
-
-func (c *concurrentDBQueryTest) init(t testing.TB, db *DB) {
- c.db = db
-}
-
-func (c *concurrentDBQueryTest) finish(t testing.TB) {
- c.db = nil
-}
-
-func (c *concurrentDBQueryTest) test(t testing.TB) error {
- rows, err := c.db.Query("SELECT|people|name|")
- if err != nil {
- t.Error(err)
- return err
- }
- var name string
- for rows.Next() {
- rows.Scan(&name)
- }
- rows.Close()
- return nil
-}
-
-type concurrentDBExecTest struct {
- db *DB
-}
-
-func (c *concurrentDBExecTest) init(t testing.TB, db *DB) {
- c.db = db
-}
-
-func (c *concurrentDBExecTest) finish(t testing.TB) {
- c.db = nil
-}
-
-func (c *concurrentDBExecTest) test(t testing.TB) error {
- _, err := c.db.Exec("NOSERT|people|name=Chris,age=?,photo=CPHOTO,bdate=?", 3, chrisBirthday)
- if err != nil {
- t.Error(err)
- return err
- }
- return nil
-}
-
-type concurrentStmtQueryTest struct {
- db *DB
- stmt *Stmt
-}
-
-func (c *concurrentStmtQueryTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.stmt, err = db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentStmtQueryTest) finish(t testing.TB) {
- if c.stmt != nil {
- c.stmt.Close()
- c.stmt = nil
- }
- c.db = nil
-}
-
-func (c *concurrentStmtQueryTest) test(t testing.TB) error {
- rows, err := c.stmt.Query()
- if err != nil {
- t.Errorf("error on query: %v", err)
- return err
- }
-
- var name string
- for rows.Next() {
- rows.Scan(&name)
- }
- rows.Close()
- return nil
-}
-
-type concurrentStmtExecTest struct {
- db *DB
- stmt *Stmt
-}
-
-func (c *concurrentStmtExecTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.stmt, err = db.Prepare("NOSERT|people|name=Chris,age=?,photo=CPHOTO,bdate=?")
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentStmtExecTest) finish(t testing.TB) {
- if c.stmt != nil {
- c.stmt.Close()
- c.stmt = nil
- }
- c.db = nil
-}
-
-func (c *concurrentStmtExecTest) test(t testing.TB) error {
- _, err := c.stmt.Exec(3, chrisBirthday)
- if err != nil {
- t.Errorf("error on exec: %v", err)
- return err
- }
- return nil
-}
-
-type concurrentTxQueryTest struct {
- db *DB
- tx *Tx
-}
-
-func (c *concurrentTxQueryTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.tx, err = c.db.Begin()
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentTxQueryTest) finish(t testing.TB) {
- if c.tx != nil {
- c.tx.Rollback()
- c.tx = nil
- }
- c.db = nil
-}
-
-func (c *concurrentTxQueryTest) test(t testing.TB) error {
- rows, err := c.db.Query("SELECT|people|name|")
- if err != nil {
- t.Error(err)
- return err
- }
- var name string
- for rows.Next() {
- rows.Scan(&name)
- }
- rows.Close()
- return nil
-}
-
-type concurrentTxExecTest struct {
- db *DB
- tx *Tx
-}
-
-func (c *concurrentTxExecTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.tx, err = c.db.Begin()
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentTxExecTest) finish(t testing.TB) {
- if c.tx != nil {
- c.tx.Rollback()
- c.tx = nil
- }
- c.db = nil
-}
-
-func (c *concurrentTxExecTest) test(t testing.TB) error {
- _, err := c.tx.Exec("NOSERT|people|name=Chris,age=?,photo=CPHOTO,bdate=?", 3, chrisBirthday)
- if err != nil {
- t.Error(err)
- return err
- }
- return nil
-}
-
-type concurrentTxStmtQueryTest struct {
- db *DB
- tx *Tx
- stmt *Stmt
-}
-
-func (c *concurrentTxStmtQueryTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.tx, err = c.db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- c.stmt, err = c.tx.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentTxStmtQueryTest) finish(t testing.TB) {
- if c.stmt != nil {
- c.stmt.Close()
- c.stmt = nil
- }
- if c.tx != nil {
- c.tx.Rollback()
- c.tx = nil
- }
- c.db = nil
-}
-
-func (c *concurrentTxStmtQueryTest) test(t testing.TB) error {
- rows, err := c.stmt.Query()
- if err != nil {
- t.Errorf("error on query: %v", err)
- return err
- }
-
- var name string
- for rows.Next() {
- rows.Scan(&name)
- }
- rows.Close()
- return nil
-}
-
-type concurrentTxStmtExecTest struct {
- db *DB
- tx *Tx
- stmt *Stmt
-}
-
-func (c *concurrentTxStmtExecTest) init(t testing.TB, db *DB) {
- c.db = db
- var err error
- c.tx, err = c.db.Begin()
- if err != nil {
- t.Fatal(err)
- }
- c.stmt, err = c.tx.Prepare("NOSERT|people|name=Chris,age=?,photo=CPHOTO,bdate=?")
- if err != nil {
- t.Fatal(err)
- }
-}
-
-func (c *concurrentTxStmtExecTest) finish(t testing.TB) {
- if c.stmt != nil {
- c.stmt.Close()
- c.stmt = nil
- }
- if c.tx != nil {
- c.tx.Rollback()
- c.tx = nil
- }
- c.db = nil
-}
-
-func (c *concurrentTxStmtExecTest) test(t testing.TB) error {
- _, err := c.stmt.Exec(3, chrisBirthday)
- if err != nil {
- t.Errorf("error on exec: %v", err)
- return err
- }
- return nil
-}
-
-type concurrentRandomTest struct {
- tests []concurrentTest
-}
-
-func (c *concurrentRandomTest) init(t testing.TB, db *DB) {
- c.tests = []concurrentTest{
- new(concurrentDBQueryTest),
- new(concurrentDBExecTest),
- new(concurrentStmtQueryTest),
- new(concurrentStmtExecTest),
- new(concurrentTxQueryTest),
- new(concurrentTxExecTest),
- new(concurrentTxStmtQueryTest),
- new(concurrentTxStmtExecTest),
- }
- for _, ct := range c.tests {
- ct.init(t, db)
- }
-}
-
-func (c *concurrentRandomTest) finish(t testing.TB) {
- for _, ct := range c.tests {
- ct.finish(t)
- }
-}
-
-func (c *concurrentRandomTest) test(t testing.TB) error {
- ct := c.tests[rand.Intn(len(c.tests))]
- return ct.test(t)
-}
-
-func doConcurrentTest(t testing.TB, ct concurrentTest) {
- maxProcs, numReqs := 1, 500
- if testing.Short() {
- maxProcs, numReqs = 4, 50
- }
- defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(maxProcs))
-
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- ct.init(t, db)
- defer ct.finish(t)
-
- var wg sync.WaitGroup
- wg.Add(numReqs)
-
- reqs := make(chan bool)
- defer close(reqs)
-
- for i := 0; i < maxProcs*2; i++ {
- go func() {
- for _ = range reqs {
- err := ct.test(t)
- if err != nil {
- wg.Done()
- continue
- }
- wg.Done()
- }
- }()
- }
-
- for i := 0; i < numReqs; i++ {
- reqs <- true
- }
-
- wg.Wait()
-}
-
-func manyConcurrentQueries(t testing.TB) {
- maxProcs, numReqs := 16, 500
- if testing.Short() {
- maxProcs, numReqs = 4, 50
- }
- defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(maxProcs))
-
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- stmt, err := db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- defer stmt.Close()
-
- var wg sync.WaitGroup
- wg.Add(numReqs)
-
- reqs := make(chan bool)
- defer close(reqs)
-
- for i := 0; i < maxProcs*2; i++ {
- go func() {
- for _ = range reqs {
- rows, err := stmt.Query()
- if err != nil {
- t.Errorf("error on query: %v", err)
- wg.Done()
- continue
- }
-
- var name string
- for rows.Next() {
- rows.Scan(&name)
- }
- rows.Close()
-
- wg.Done()
- }
- }()
- }
-
- for i := 0; i < numReqs; i++ {
- reqs <- true
- }
-
- wg.Wait()
-}
-
-func TestIssue6081(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
-
- drv := db.driver.(*fakeDriver)
- drv.mu.Lock()
- opens0 := drv.openCount
- closes0 := drv.closeCount
- drv.mu.Unlock()
-
- stmt, err := db.Prepare("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- rowsCloseHook = func(rows *Rows, err *error) {
- *err = driver.ErrBadConn
- }
- defer func() { rowsCloseHook = nil }()
- for i := 0; i < 10; i++ {
- rows, err := stmt.Query()
- if err != nil {
- t.Fatal(err)
- }
- rows.Close()
- }
- if n := len(stmt.css); n > 1 {
- t.Errorf("len(css slice) = %d; want <= 1", n)
- }
- stmt.Close()
- if n := len(stmt.css); n != 0 {
- t.Errorf("len(css slice) after Close = %d; want 0", n)
- }
-
- drv.mu.Lock()
- opens := drv.openCount - opens0
- closes := drv.closeCount - closes0
- drv.mu.Unlock()
- if opens < 9 {
- t.Errorf("opens = %d; want >= 9", opens)
- }
- if closes < 9 {
- t.Errorf("closes = %d; want >= 9", closes)
- }
-}
-
-func TestConcurrency(t *testing.T) {
- doConcurrentTest(t, new(concurrentDBQueryTest))
- doConcurrentTest(t, new(concurrentDBExecTest))
- doConcurrentTest(t, new(concurrentStmtQueryTest))
- doConcurrentTest(t, new(concurrentStmtExecTest))
- doConcurrentTest(t, new(concurrentTxQueryTest))
- doConcurrentTest(t, new(concurrentTxExecTest))
- doConcurrentTest(t, new(concurrentTxStmtQueryTest))
- doConcurrentTest(t, new(concurrentTxStmtExecTest))
- doConcurrentTest(t, new(concurrentRandomTest))
-}
-
-func TestConnectionLeak(t *testing.T) {
- db := newTestDB(t, "people")
- defer closeDB(t, db)
- // Start by opening defaultMaxIdleConns
- rows := make([]*Rows, defaultMaxIdleConns)
- // We need to SetMaxOpenConns > MaxIdleConns, so the DB can open
- // a new connection and we can fill the idle queue with the released
- // connections.
- db.SetMaxOpenConns(len(rows) + 1)
- for ii := range rows {
- r, err := db.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- r.Next()
- if err := r.Err(); err != nil {
- t.Fatal(err)
- }
- rows[ii] = r
- }
- // Now we have defaultMaxIdleConns busy connections. Open
- // a new one, but wait until the busy connections are released
- // before returning control to DB.
- drv := db.driver.(*fakeDriver)
- drv.waitCh = make(chan struct{}, 1)
- drv.waitingCh = make(chan struct{}, 1)
- var wg sync.WaitGroup
- wg.Add(1)
- go func() {
- r, err := db.Query("SELECT|people|name|")
- if err != nil {
- t.Fatal(err)
- }
- r.Close()
- wg.Done()
- }()
- // Wait until the goroutine we've just created has started waiting.
- <-drv.waitingCh
- // Now close the busy connections. This provides a connection for
- // the blocked goroutine and then fills up the idle queue.
- for _, v := range rows {
- v.Close()
- }
- // At this point we give the new connection to DB. This connection is
- // now useless, since the idle queue is full and there are no pending
- // requests. DB should deal with this situation without leaking the
- // connection.
- drv.waitCh <- struct{}{}
- wg.Wait()
-}
-
-func BenchmarkConcurrentDBExec(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentDBExecTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentStmtQuery(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentStmtQueryTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentStmtExec(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentStmtExecTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentTxQuery(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentTxQueryTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentTxExec(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentTxExecTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentTxStmtQuery(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentTxStmtQueryTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentTxStmtExec(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentTxStmtExecTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
-
-func BenchmarkConcurrentRandom(b *testing.B) {
- b.ReportAllocs()
- ct := new(concurrentRandomTest)
- for i := 0; i < b.N; i++ {
- doConcurrentTest(b, ct)
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-29 01:40:40 +0000