70             Assert.Throws<ArgumentNullException>(() => map.Add(0, nullValue));  in TestNullValues()
71             Assert.Throws<ArgumentNullException>(() => map[0] = nullValue);  in TestNullValues()
80             Assert.Throws<ArgumentNullException>(() => map.Add(null, new ForeignMessage()));  in Add_ForbidsNullKeys()
87             Assert.Throws<ArgumentNullException>(() => map[null] = new ForeignMessage());  in Indexer_ForbidsNullKeys()
187             Assert.Throws<ArgumentException>(() => map.Add("foo", "baz"));  in Add_KeyAlreadyExists()
197             Assert.Throws<ArgumentException>(() => collection.Add(NewKeyValuePair("x", "z")));  in Add_Pair()
220             Assert.Throws<ArgumentNullException>(() => map.Remove(null));  in Remove_Key()
236 …Assert.Throws<ArgumentException>(() => collection.Remove(new KeyValuePair<string, string>(null, ""…  in Remove_Pair()
266             Assert.Throws<KeyNotFoundException>(() => { var ignored = map["z"]; });  in Indexer_Get()
318             Assert.Throws<ArgumentException>(() => dictionary.Add("a", "duplicate"));  in IDictionary_Add()
319             Assert.Throws<InvalidCastException>(() => dictionary.Add(new object(), "key is bad"));  in IDictionary_Add()
320             Assert.Throws<InvalidCastException>(() => dictionary.Add("value is bad", new object()));  in IDictionary_Add()
349             Assert.Throws<ArgumentNullException>(() => dictionary.Remove(null));  in IDictionary_Remove()
410             Assert.Throws<ArgumentNullException>(() => dictionary[null].GetHashCode());  in IDictionary_Indexer_Get()
422             Assert.Throws<InvalidCastException>(() => dictionary[5] = "x");  in IDictionary_Indexer_Set()
423             Assert.Throws<InvalidCastException>(() => dictionary["x"] = 5);  in IDictionary_Indexer_Set()
424             Assert.Throws<ArgumentNullException>(() => dictionary[null] = "z");  in IDictionary_Indexer_Set()
425             Assert.Throws<ArgumentNullException>(() => dictionary["x"] = null);  in IDictionary_Indexer_Set()
457             Assert.Throws<NotSupportedException>(() => keys.Clear());  in ViewsAreReadOnly()
458             Assert.Throws<NotSupportedException>(() => keys.Remove("a"));  in ViewsAreReadOnly()
459             Assert.Throws<NotSupportedException>(() => keys.Add("a"));  in ViewsAreReadOnly()
469             Assert.Throws<ArgumentException>(() => keys.CopyTo(array, 3));  in ViewCopyTo()
470             Assert.Throws<ArgumentOutOfRangeException>(() => keys.CopyTo(array, -1));  in ViewCopyTo()
483             Assert.Throws<ArgumentException>(() => keys.CopyTo(array, 3));  in NonGenericViewCopyTo()
484             Assert.Throws<ArgumentOutOfRangeException>(() => keys.CopyTo(array, -1));  in NonGenericViewCopyTo()
498             Assert.Throws<ArgumentNullException>(() => keys.Contains(null));  in KeysContains()
524             Assert.Throws<ArgumentException>(() => map.ToString());  in ToString_UnsupportedKeyType()