}
	r, err := NewReader(bytes.NewReader(b.Bytes()), int64(b.Len()))
	if err != nil {
		t.Fatalf("NewReader failed: %s", err)
	}
	if len(r.File) != 5 {
		t.Errorf("Archive has unexpected number of files, got %d, want 5", len(r.File))
	}
}

func TestCVE202139293(t *testing.T) {
	// directory size is so large, that the check in Reader.init
	// overflows when subtracting from the archive size, causing

			if err != v.err {
				t.Fatalf("unexpected error: got %v, want %v", err, v.err)
			}
			f.Close()
		})
	}
}

func TestPartialRead(t *testing.T) {
	type testCase struct {
		cnt    int    // Number of bytes to read
		output string // Expected value of string read
	}
	vectors := []struct {
		file  string
		cases []testCase
	}{{
		file: "testdata/gnu.tar",
		cases: []testCase{
			{4, "Kilt"},