public void GetAssembly_NullKey()
 {
     var config = new ConfigurationBuilder().Build();
     Assert.Throws<ArgumentNullException>(() => config.GetAssembly(null));
 }
 public void GetAssembly_EmptyKey(string key)
 {
     var config = new ConfigurationBuilder().Build();
     Assert.Throws<ArgumentException>(() => config.GetAssembly(key));
 }