Fix driver test

Author: asdine

db_test.go

@@ -147,6 +147,7 @@ func TestOpen(t *testing.T) {
 func TestQueryDocument(t *testing.T) {
 	db, err := genji.Open(":memory:")
 	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	tx, err := db.Begin(true)
 	assert.NoError(t, err)

driver/example_test.go

@@ -21,7 +21,7 @@ func Example() {
 	}
 	defer db.Close()
 
-	_, err = db.Exec("CREATE TABLE IF NOT EXISTS user")
+	_, err = db.Exec("CREATE TABLE IF NOT EXISTS user (name, ...)")
 	if err != nil {
 		log.Fatal(err)
 	}