database/sql: add DB.SetMaxIdleConns
Update #4805
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7634045
diff --git a/src/pkg/database/sql/sql_test.go b/src/pkg/database/sql/sql_test.go
index 5d3df72..2a9592e 100644
--- a/src/pkg/database/sql/sql_test.go
+++ b/src/pkg/database/sql/sql_test.go
@@ -761,3 +761,32 @@
}
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 := len(db.freeConn); got != 1 {
+ t.Errorf("freeConns = %d; want 1", got)
+ }
+
+ db.SetMaxIdleConns(0)
+
+ if got := len(db.freeConn); 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 := len(db.freeConn); got != 0 {
+ t.Errorf("freeConns = %d; want 0", got)
+ }
+}
