{ "test_empty_rule": {"expression": {"type": "RESULT"}}
, "test_rule_fields":
  { "string_fields": ["foo"]
  , "target_fields": ["bar"]
  , "config_fields": ["baz"]
  , "expression": {"type": "RESULT"}
  }
, "test_config_transitions_target_via_field":
  { "target_fields": ["target"]
  , "config_transitions": {"target": [{"type": "empty_map"}]}
  , "expression": {"type": "RESULT"}
  }
, "test_config_transitions_target_via_implicit":
  { "implicit": {"target": [["module", "name"]]}
  , "config_transitions": {"target": [{"type": "empty_map"}]}
  , "expression": {"type": "RESULT"}
  }
, "test_config_transitions_canonicalness":
  { "target_fields": ["foo", "bar"]
  , "string_fields": ["quux", "corge"]
  , "config_fields": ["grault", "garply"]
  , "implicit": {"baz": [["module", "name"]], "qux": [["module", "name"]]}
  , "config_transitions":
    { "bar": [{"type": "singleton_map", "key": "exists", "value": true}]
    , "qux": [{"type": "singleton_map", "key": "defined", "value": true}]
    }
  , "expression": {"type": "RESULT"}
  }
, "test_call_import":
  { "config_vars": ["FOO"]
  , "imports": {"compose_foo": ["composers", "foo_composer"]}
  , "expression": {"type": "CALL_EXPRESSION", "name": "compose_foo"}
  }
, "test_string_kw_conflict":
  {"string_fields": ["foo", "type", "bar"], "expression": {"type": "RESULT"}}
, "test_target_kw_conflict":
  { "target_fields": ["foo", "arguments_config", "bar"]
  , "expression": {"type": "RESULT"}
  }
, "test_config_kw_conflict":
  {"config_fields": ["foo", "type", "bar"], "expression": {"type": "RESULT"}}
, "test_implicit_kw_conflict":
  { "implicit": {"foo": [], "arguments_config": [], "bar": []}
  , "expression": {"type": "RESULT"}
  }
, "test_string_target_conflict":
  { "string_fields": ["foo", "bar"]
  , "target_fields": ["bar", "baz"]
  , "expression": {"type": "RESULT"}
  }
, "test_target_config_conflict":
  { "target_fields": ["foo", "bar"]
  , "config_fields": ["bar", "baz"]
  , "expression": {"type": "RESULT"}
  }
, "test_config_implicit_conflict":
  { "config_fields": ["foo", "bar"]
  , "implicit": {"bar": [["module", "name"]], "baz": [["module", "name"]]}
  , "expression": {"type": "RESULT"}
  }
, "test_unknown_config_transitions_target":
  { "config_transitions": {"missing": [{"type": "empty_map"}]}
  , "expression": {"type": "RESULT"}
  }
, "test_missing_config_vars":
  { "imports": {"compose_foo": ["composers", "foo_composer"]}
  , "expression": {"type": "CALL_EXPRESSION", "name": "compose_foo"}
  }
, "test_missing_imports":
  {"expression": {"type": "CALL_EXPRESSION", "name": "compose_foo"}}
, "test_malformed_rule": "not_an_object"
, "test_malformed_rule_expression": {"missing_expression": {"type": "RESULT"}}
, "test_malformed_target_fields":
  {"target_fields": "not_a_list", "expression": {"type": "RESULT"}}
, "test_malformed_string_fields":
  {"string_fields": "not_a_list", "expression": {"type": "RESULT"}}
, "test_malformed_config_fields":
  {"config_fields": "not_a_list", "expression": {"type": "RESULT"}}
, "test_malformed_implicit":
  {"implicit": "not_an_object", "expression": {"type": "RESULT"}}
, "test_malformed_implicit_entry":
  {"implicit": {"target": "not_a_list"}, "expression": {"type": "RESULT"}}
, "test_malformed_implicit_entity_name":
  { "implicit": {"target": [["module_without_name"]]}
  , "expression": {"type": "RESULT"}
  }
, "test_malformed_implicit_entity_name_2":
  {"implicit": {"target": [[]]}, "expression": {"type": "RESULT"}}
, "test_malformed_config_vars":
  {"config_vars": "not_a_list", "expression": {"type": "RESULT"}}
, "test_malformed_config_transitions":
  {"config_transitions": "not_an_object", "expression": {"type": "RESULT"}}
, "test_malformed_imports":
  {"imports": "not_an_object", "expression": {"type": "RESULT"}}
}