travis: retry non-parallel tests on failure

On failure, reports are incomplete with parallel tests. In this case,
rerun failed tests with full verbosity.

diff --git a/tests/ci/run.sh b/tests/ci/run.sh
index 39d589f85d96584122dcd41077a0e859b5f5d997..91d00d559be43380aaf38c3819d94b11b4bd3db7 100755 (executable)
--- a/tests/ci/run.sh
+++ b/tests/ci/run.sh
@@ -39,6 +39,7 @@ case "$(uname -s)" in
     Linux)
         # Integration tests
         cd tests/integration
-        sudo $(which python3) -m pytest -n 5 -vvv --boxed
+        sudo $(which python3) -m pytest -n 5 -vv --boxed || \
+            sudo $(which python3) -m pytest -vvv --last-failed --maxfail=5
         ;;
 esac