unify test method names for asserttrue and assertfalse
unify test method names for assertnull and assertnotnull
add assertion testcase base
remove extraneous type suffixes, add clarifying ones
factor common setup and teardown into base class, update assertignore tests
update assert fail tests to inherit from base
update asserttrue and assertfalse tests to inherit from base
add bool assertion base class
factor common null test code
move stddef inclusion to assertion base
factor out equality tests
factor out same assertion tests
factor out string equality tests
factor about equal tests
factor out assertion failure and success test conditions
replace assertion expectation methods with macros so xcode properly reports test failure
remove extraneous param name
fix typo causing test failures
reformat assert type enum
remove redundant include