[couchdb] 01/02: Improve logging from test_util

[wo...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

wohali pushed a commit to branch 2.2.x
in repository https://gitbox.apache.org/repos/asf/couchdb.git

commit ef88643d86de50003e89e53aa3387d83f054bb5c
Author: ILYA Khlopotov <ii...@apache.org>
AuthorDate: Thu Jul 26 06:08:46 2018 -0700

    Improve logging from test_util
    
    Sometimes it is hard to guess what went wrong when application
    started via `test_util:start_applications` or `test_util:start_couch`
    is unable to start. Since the traceback was truncated.
    This change would print the reason in addition to the traceback.
---
 src/couch/src/test_util.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/couch/src/test_util.erl b/src/couch/src/test_util.erl
index 738e9a3..efb5064 100644
--- a/src/couch/src/test_util.erl
+++ b/src/couch/src/test_util.erl
@@ -101,6 +101,9 @@ start_applications([App|Apps], Acc) ->
         io:format(standard_error, "Application ~s was left running!~n", [App]),
         application:stop(App),
         start_applications([App|Apps], Acc);
+    {error, Reason} ->
+        io:format(standard_error, "Cannot start application '~s', reason ~p~n", [App, Reason]),
+        throw({error, {cannot_start, App, Reason}});
     ok ->
         start_applications(Apps, [App|Acc])
     end.