From 6796d46c3a2736edc88418f6de515c76e29f4aa9 Mon Sep 17 00:00:00 2001
From: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Date: Thu, 3 Nov 2016 23:05:34 +0900
Subject: [PATCH] implement go18 Pinger

---
 sqlite3_context.go | 14 ++++++++++++++
 sqlite3_test.go    | 16 ++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 sqlite3_context.go

diff --git a/sqlite3_context.go b/sqlite3_context.go
new file mode 100644
index 0000000..26e4998
--- /dev/null
+++ b/sqlite3_context.go
@@ -0,0 +1,14 @@
+package sqlite3
+
+import (
+	"context"
+	"errors"
+)
+
+// Ping implement Pinger.
+func (c *SQLiteConn) Ping(ctx context.Context) error {
+	if c.db == nil {
+		return errors.New("Connection was closed")
+	}
+	return nil
+}
diff --git a/sqlite3_test.go b/sqlite3_test.go
index cf826dd..fc5c99c 100644
--- a/sqlite3_test.go
+++ b/sqlite3_test.go
@@ -1315,6 +1315,22 @@ func TestDeclTypes(t *testing.T) {
 	}
 }
 
+func TestPinger(t *testing.T) {
+	db, err := sql.Open("sqlite3", ":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = db.Ping()
+	if err != nil {
+		t.Fatal(err)
+	}
+	db.Close()
+	err = db.Ping()
+	if err == nil {
+		t.Fatal("Should be closed")
+	}
+}
+
 var customFunctionOnce sync.Once
 
 func BenchmarkCustomFunctions(b *testing.B) {