Camelcased

Pass the name of the test, either CamelCased or under_scored, as an argument.

Source: wiktionary

Since CamelCased words are rarely found in dictionaries, the spellchecker would flag them as errors. To avoid this, the Split CamelCase words option splits CamelCased words into their capitalized components and checks each component individually.

Source: wiktionary

For class names, it uses CamelCased names.

Source: wiktionary