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-rw-r--r--lib/eunit/src/eunit_lib.erl39
1 files changed, 35 insertions, 4 deletions
diff --git a/lib/eunit/src/eunit_lib.erl b/lib/eunit/src/eunit_lib.erl
index 5d7025f038..f0fd26eb5d 100644
--- a/lib/eunit/src/eunit_lib.erl
+++ b/lib/eunit/src/eunit_lib.erl
@@ -30,7 +30,8 @@
-export([dlist_next/1, uniq/1, fun_parent/1, is_string/1, command/1,
command/2, command/3, trie_new/0, trie_store/2, trie_match/2,
split_node/1, consult_file/1, list_dir/1, format_exit_term/1,
- format_exception/1, format_exception/2, format_error/1]).
+ format_exception/1, format_exception/2, format_error/1,
+ is_not_test/1]).
%% Type definitions for describing exceptions
@@ -158,9 +159,13 @@ is_op(_M, _F, _A) ->
format_error({bad_test, Term}) ->
error_msg("bad test descriptor", "~P", [Term, 15]);
-format_error({generator_failed, Exception}) ->
- error_msg("test generator failed", "~s",
- [format_exception(Exception)]);
+format_error({bad_generator, {{M,F,A}, Term}}) ->
+ error_msg(io_lib:format("result from generator ~w:~w/~w is not a test",
+ [M,F,A]),
+ "~P", [Term, 15]);
+format_error({generator_failed, {{M,F,A}, Exception}}) ->
+ error_msg(io_lib:format("test generator ~w:~w/~w failed",[M,F,A]),
+ "~s", [format_exception(Exception)]);
format_error({no_such_function, {M,F,A}})
when is_atom(M), is_atom(F), is_integer(A) ->
error_msg(io_lib:format("no such function: ~w:~w/~w", [M,F,A]),
@@ -177,6 +182,10 @@ format_error({setup_failed, Exception}) ->
format_error({cleanup_failed, Exception}) ->
error_msg("context cleanup failed", "~s",
[format_exception(Exception)]);
+format_error({{bad_instantiator, {{M,F,A}, Term}}, _DummyException}) ->
+ error_msg(io_lib:format("result from instantiator ~w:~w/~w is not a test",
+ [M,F,A]),
+ "~P", [Term, 15]);
format_error({instantiation_failed, Exception}) ->
error_msg("instantiation of subtests failed", "~s",
[format_exception(Exception)]).
@@ -202,6 +211,28 @@ format_exception_test_() ->
-endif.
%% ---------------------------------------------------------------------
+%% detect common return values that are definitely not tests
+
+is_not_test(T) ->
+ case T of
+ ok -> true;
+ error -> true;
+ true -> true;
+ false -> true;
+ undefined -> true;
+ {ok, _} -> true;
+ {error, _} -> true;
+ {'EXIT', _} -> true;
+ N when is_number(N) -> true;
+ [N|_] when is_number(N) -> true;
+ X when is_binary(X) -> true;
+ X when is_pid(X) -> true;
+ X when is_port(X) -> true;
+ X when is_reference(X) -> true;
+ _ -> false
+ end.
+
+%% ---------------------------------------------------------------------
%% Deep list iterator; accepts improper lists/sublists, and also accepts
%% non-lists on the top level. Nonempty strings (not deep strings) are
%% recognized as separate elements, even on the top level. (It is not