Add unittest

Add unittest

[   22s] + ./expandtest
[   22s]
[   22s] running 1 test
[   22s] test expandtest ... ignored
[   22s]
[   22s] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[   22s]
[   22s] + for unit_test in '${unit_test_list}'
[   22s] + ./compiletest
[   22s]
[   22s] running 1 test
[   22s] test ui ... ignored
[   22s]
[   22s] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[   22s]
[   22s] + for unit_test in '${unit_test_list}'
[   22s] + ./test
[   22s]
[   22s] running 17 tests
[   22s] test attrs ... ok
[   22s] test derive_copy ... ok
[   22s] test dst ... ok
[   22s] test dyn_type ... ok
[   22s] test enum_project_set ... ok
[   22s] test move_out ... ok
[   22s] test no_infer_outlives ... ok
[   22s] test lifetime_project ... ok
[   22s] test pinned_drop ... ok
[   22s] test projection ... ok
[   22s] test trait_bounds_on_type_generics ... ok
[   22s] test trailing_comma ... ok
[   22s] test private_type_in_public_type ... ok
[   22s] test trivial_bounds ... ok
[   22s] test visibility ... ok
[   22s] test where_clause ... ok
[   22s] test where_clause_and_associated_type_field ... ok
[   22s]
[   22s] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[   22s]
[   22s] + for unit_test in '${unit_test_list}'
[   22s] + ./drop_order
[   22s]
[   22s] running 4 tests
[   22s] test enum_struct ... ok
[   22s] test struct_unpinned ... ok
[   22s] test struct_pinned ... ok
[   22s] test project_replace_panic ... ok
[   22s]
[   22s] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s