t.Fatalf("Unable to create temporary file. %v", err)
	}
	defer os.Remove(tempFile5)

	testCases := []struct {
		certFile          string
		expectedResultLen int
		expectedErr       bool
	}{
		{"nonexistent-file", 0, true},
		{tempFile1, 0, true},
		{tempFile2, 0, true},
		{tempFile3, 0, true},
		{tempFile4, 1, false},
		{tempFile5, 2, false},
	}

	for _, testCase := range testCases {