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internal/database/project_fact_upsert_test.go

@@ -135,6 +135,54 @@ func TestRestoreProjectFact(t *testing.T) {
 	}
 }
 
+func TestUpsertProjectFact_createsVersionOnContentChange(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "facts.db")
+	db, err := NewDB(dbPath, zap.NewNop())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	proj, err := db.CreateProject(&Project{Name: "version-test"})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	created, err := db.UpsertProjectFact(&ProjectFact{
+		ProjectID: proj.ID,
+		FactKey:   "finding/xss",
+		Category:  "finding",
+		Summary:   "v1",
+		Body:      "body v1",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if created.SupersedesFactID != "" {
+		t.Fatalf("expected no supersedes on create, got %q", created.SupersedesFactID)
+	}
+
+	updated, err := db.UpsertProjectFact(&ProjectFact{
+		ProjectID: proj.ID,
+		FactKey:   "finding/xss",
+		Summary:   "v2",
+		Body:      "body v2",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if updated.SupersedesFactID == "" {
+		t.Fatal("expected supersedes_fact_id after content change")
+	}
+	prev, err := db.GetProjectFactVersion(updated.SupersedesFactID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if prev.Summary != "v1" || prev.Body != "body v1" {
+		t.Fatalf("previous version mismatch: summary=%q body=%q", prev.Summary, prev.Body)
+	}
+}
+
 func TestMergeFactBodyOnUpdate(t *testing.T) {
 	if got := mergeFactBodyOnUpdate("", "keep"); got != "keep" {
 		t.Fatalf("empty incoming: got %q", got)