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authorStefan Kangas <stefan@marxist.se>2020-10-31 20:26:54 +0100
committerStefan Kangas <stefan@marxist.se>2020-10-31 20:27:39 +0100
commitf9cac26dc1545ce7b79c68dc2294dfba8486c48b (patch)
treee670c827ae031c001d85c478f2cc1b2872eb5a81
parentca3b199ad536283e5775d2fc1bf2cbeb998e7907 (diff)
downloademacs-f9cac26dc1545ce7b79c68dc2294dfba8486c48b.tar.gz
* test/README: Document TEST_BACKTRACE_LINE_LENGTH.
-rw-r--r--test/README5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/README b/test/README
index fe05b5403b1..d0da89d1c2c 100644
--- a/test/README
+++ b/test/README
@@ -81,6 +81,11 @@ Some tests might take long time to run. In order to summarize the
make SUMMARIZE_TESTS=<nn> ...
+The backtrace of failing tests are truncated to the default value of
+'ert-batch-backtrace-right-margin'. To see more of the backtrace, use
+
+ make TEST_BACKTRACE_LINE_LENGTH=<nn> ...
+
The tests are run in batch mode by default; sometimes it's useful to
get precisely the same environment but run in interactive mode for
debugging. To do that, use