1 files changed, 32 insertions, 0 deletions
diff --git a/internal/scan/scan_test.go b/internal/scan/scan_test.go
index 94f922b..a245893 100644
--- a/internal/scan/scan_test.go
+++ b/internal/scan/scan_test.go
@@ -261,3 +261,35 @@ func TestIgnoredDirectoryReportedOnce(t *testing.T) {
 		t.Fatalf("skipped = %v, want %v (the directory once, not its three files)", skipped(r), want)
 	}
 }
+
+// TestTooBig: with MaxSize set, a file larger than it is skipped as too
+// big; a file of exactly MaxSize is kept; MaxSize 0 means no limit.
+func TestTooBig(t *testing.T) {
+	root := tree(t)
+	for name, size := range map[string]int{"small.bin": 10, "exact.bin": 100, "large.bin": 101} {
+		p := filepath.Join(root, name)
+		if err := os.WriteFile(p, make([]byte, size), 0o644); err != nil {
+			t.Fatal(err)
+		}
+		old := now.Add(-time.Hour)
+		if err := os.Chtimes(p, old, old); err != nil {
+			t.Fatal(err)
+		}
+	}
+	r, err := Walk(root, Options{MaxSize: 100, Now: now})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if want := []string{"exact.bin", "small.bin"}; !reflect.DeepEqual(rels(r), want) {
+		t.Fatalf("files = %v, want %v", rels(r), want)
+	}
+	if got := skipped(r); !reflect.DeepEqual(got, map[string]Reason{"large.bin": TooBig}) {
+		t.Fatalf("skipped = %v", got)
+	}
+	if TooBig.String() != "too big" {
+		t.Errorf("TooBig reads %q", TooBig.String())
+	}
+	if r, _ := Walk(root, Options{Now: now}); len(rels(r)) != 3 {
+		t.Errorf("MaxSize 0 skipped files: %v", skipped(r))
+	}
+}