From 62dcb881fc3051b72ae8cf7a5dbf08e21bf97c21 Mon Sep 17 00:00:00 2001
From: Philip O'Toole <philip.otoole@yahoo.com>
Date: Sun, 10 Dec 2023 00:45:53 -0500
Subject: [PATCH] More DB and Checkpoint tests

---
 db/db_test.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/db/db_test.go b/db/db_test.go
index a80046ce..2a41f010 100644
--- a/db/db_test.go
+++ b/db/db_test.go
@@ -492,6 +492,8 @@ func Test_WALDatabaseCreatedOK(t *testing.T) {
 	}
 }
 
+// Test_WALDatabaseCheckpointOKNoWAL tests that a checkpoint succeeds
+// even when no WAL file exists.
 func Test_WALDatabaseCheckpointOKNoWAL(t *testing.T) {
 	path := mustTempFile()
 	defer os.Remove(path)
@@ -512,6 +514,25 @@ func Test_WALDatabaseCheckpointOKNoWAL(t *testing.T) {
 	}
 }
 
+// Test_WALDatabaseCheckpointOKDelete tests that a checkpoint returns no error
+// even when the database is opened in DELETE mode.
+func Test_WALDatabaseCheckpointOKDelete(t *testing.T) {
+	path := mustTempFile()
+	defer os.Remove(path)
+
+	db, err := Open(path, false, false)
+	if err != nil {
+		t.Fatalf("failed to open database in DELETE mode: %s", err.Error())
+	}
+	if db.WALEnabled() {
+		t.Fatalf("WAL mode enabled")
+	}
+	defer db.Close()
+	if err := db.Checkpoint(); err != nil {
+		t.Fatalf("failed to checkpoint database in DELETE mode: %s", err.Error())
+	}
+}
+
 // Test_WALDatabaseCreatedOKFromDELETE tests that a WAL database is created properly,
 // even when supplied with a DELETE-mode database.
 func Test_WALDatabaseCreatedOKFromDELETE(t *testing.T) {