https://github.com/exercism/xruby/blob/master/lib/generator/test_template.erb#L6
class <%= exercise_name_camel %>Test < Minitest::Test
exercise_name_camel + 'Test' should be exercise_test_class
class <%= exercise_test_class %> < Minitest::Test
Which is already the full test class name.
(This is the only place this value is used.)
https://github.com/exercism/xruby/blob/master/lib/generator/test_template.erb#L6
exercise_name_camel + 'Test' should be
exercise_test_classclass <%= exercise_test_class %> < Minitest::TestWhich is already the full test class name.
(This is the only place this value is used.)