protected void AssertsTestLoad(List <Filter> expect, string file)
        {
            var sut    = new FilterFile();
            var actual = sut.Load(file);

            Assert.Equal(expect, actual);
        }
        public void TestParseFailed()
        {
            var sut = new FilterFile();

            Assert.Throws <InvalidOperationException>(() => sut.Load("not-existing-file.txt"));
        }