got := addEntries(tc.file, tc.entries, tc.createEntry)
			if tc.expectedOutput != got {
				t.Fatalf("expected output:\n%s\ngot:\n%s\n", tc.expectedOutput, got)
			}
		})
	}
}

func TestRemoveEntries(t *testing.T) {
	testCases := []struct {
		name            string
		file            string
		entries         []*entry
		expectedRemoved int
		expectedOutput  string
	}{
		{