71             Assert.Throws<ArgumentNullException>(() => map.Add(0, nullValue));  in TestNullValues()
73             map.Add(1, nonNullValue);  in TestNullValues()
81             Assert.Throws<ArgumentNullException>(() => map.Add(null, new ForeignMessage()));  in Add_ForbidsNullKeys()
95             map.Add("a", "v1");  in AddPreservesInsertionOrder()
96             map.Add("b", "v2");  in AddPreservesInsertionOrder()
97             map.Add("c", "v3");  in AddPreservesInsertionOrder()
99             map.Add("d", "v4");  in AddPreservesInsertionOrder()
108             map1.Add("a", "v1");  in EqualityIsOrderInsensitive()
109             map1.Add("b", "v2");  in EqualityIsOrderInsensitive()
112             map2.Add("b", "v2");  in EqualityIsOrderInsensitive()
113             map2.Add("a", "v1");  in EqualityIsOrderInsensitive()
122             map1.Add("first key", "v1");  in EqualityIsKeySensitive()
123             map1.Add("second key", "v2");  in EqualityIsKeySensitive()
126             map2.Add("third key", "v1");  in EqualityIsKeySensitive()
127             map2.Add("fourth key", "v2");  in EqualityIsKeySensitive()
147             map1.Add("a", "first value");  in EqualityIsValueSensitive()
148             map1.Add("b", "second value");  in EqualityIsValueSensitive()
151             map2.Add("a", "third value");  in EqualityIsValueSensitive()
152             map2.Add("b", "fourth value");  in EqualityIsValueSensitive()
187             map.Add("foo", "bar");  in Add_KeyAlreadyExists()
188             Assert.Throws<ArgumentException>(() => map.Add("foo", "baz"));  in Add_KeyAlreadyExists()
196             collection.Add(NewKeyValuePair("x", "y"));  in Add_Pair()
198             Assert.Throws<ArgumentException>(() => collection.Add(NewKeyValuePair("x", "z")));  in Add_Pair()
215             map.Add("foo", "bar");  in Remove_Key()
228             map.Add("foo", "bar");  in Remove_Pair()
244             map.Add("foo", "bar");  in CopyTo_Pair()
258             map.Add("x", "y");  in Clear()
317             dictionary.Add("a", "b");  in IDictionary_Add()
319             Assert.Throws<ArgumentException>(() => dictionary.Add("a", "duplicate"));  in IDictionary_Add()
320             Assert.Throws<InvalidCastException>(() => dictionary.Add(new object(), "key is bad"));  in IDictionary_Add()
321             Assert.Throws<InvalidCastException>(() => dictionary.Add("value is bad", new object()));  in IDictionary_Add()
460             Assert.Throws<NotSupportedException>(() => keys.Add("a"));  in ViewsAreReadOnly()