| Name | Lines of code | Maintainability | Test coverage |
| test/basic_block_test.rb | 101 | A 0 mins | |
| test/binary_operations_test.rb | 49 | A 0 mins | |
| test/bitcode_test.rb | 28 | A 0 mins | |
| test/branch_test.rb | 50 | A 0 mins | |
| test/call_test.rb | 161 | A 35 mins | |
| test/comparisons_test.rb | 58 | A 1 hr | |
| test/conversions_test.rb | 74 | A 2 hrs | |
| test/double_test.rb | 71 | A 30 mins | |
| test/equality_test.rb | 75 | A 1 hr | |
| test/function_test.rb | 108 | A 0 mins | |
| test/generic_value_test.rb | 20 | A 0 mins | |
| test/instruction_test.rb | 250 | B 4 hrs | |
| test/integer_test.rb | 131 | A 3 hrs | |
| test/ipo_test.rb | 42 | A 0 mins | |
| test/linker_test.rb | 31 | A 0 mins | |
| test/lljit_test.rb | 23 | A 0 mins | |
| test/mcjit_test.rb | 66 | A 0 mins | |
| test/memory_access_test.rb | 35 | A 0 mins | |
| test/module_test.rb | 79 | A 0 mins | |
| test/parameter_collection_test.rb | 23 | A 0 mins | |
| test/pass_builder_test.rb | 132 | A 0 mins | |
| test/pass_manager_builder_test.rb | 59 | A 0 mins | |
| test/phi_test.rb | 30 | A 0 mins | |
| test/select_test.rb | 17 | A 0 mins | |
| test/struct_test.rb | 176 | A 2 hrs | |
| test/target_test.rb | 146 | B 6 hrs | |
| test/test_helper.rb | 85 | A 0 mins | |
| test/type_test.rb | 82 | A 0 mins | |
| test/vector_test.rb | 101 | A 1 hr | |
| yardlib/llvm.rb | 24 | A 0 mins |