(List
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('test_description', {[SQ <LIT_CHARS "read-tree can handle submodules">]})])
  (Com {[LIT_CHARS .]} {[LIT_CHARS ./test-lib.sh]})
  (Com {[LIT_CHARS .]} {[DQ [VarSub TEST_DIRECTORY]] [LIT_CHARS /lib-submodule-update.sh]})
  (Com {[LIT_CHARS test_submodule_switch]} {[DQ [LIT_CHARS "git read-tree -u -m"]]})
  (Com {[LIT_CHARS test_submodule_forced_switch]} {[DQ [LIT_CHARS "git read-tree -u --reset"]]})
  (Com {[LIT_CHARS test_done]})
)