database/sql: add test for Conn.Validator interface

This addresses comments made by Russ after
https://golang.org/cl/174122 was merged. It addes a test
for the connection validator and renames the interface to just
"Validator".

Change-Id: Iea53e9b250c9be2e86e9b75906e7353e26437c5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/223963
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/database/sql/driver/driver.go b/src/database/sql/driver/driver.go
index a2b844d71f..76f1bd3aa1 100644
--- a/src/database/sql/driver/driver.go
+++ b/src/database/sql/driver/driver.go
@@ -261,15 +261,15 @@ type SessionResetter interface {
 	ResetSession(ctx context.Context) error
 }
 
-// ConnectionValidator may be implemented by Conn to allow drivers to
+// Validator may be implemented by Conn to allow drivers to
 // signal if a connection is valid or if it should be discarded.
 //
 // If implemented, drivers may return the underlying error from queries,
 // even if the connection should be discarded by the connection pool.
-type ConnectionValidator interface {
-	// ValidConnection is called prior to placing the connection into the
+type Validator interface {
+	// IsValid is called prior to placing the connection into the
 	// connection pool. The connection will be discarded if false is returned.
-	ValidConnection() bool
+	IsValid() bool
 }
 
 // Result is the result of a query execution.