[OPENENGSB-3738] Use a custom script to execute itests on Travis

.travis.yml

@@ -10,7 +10,9 @@ before_install:
 
 install: mvn validate
 
-script: mvn install -Pitests,checkstyle,licenseCheck
+script:
+  - mvn install -Pcheckstyle,licenseCheck
+  - ./etc/scripts/run-itests.sh
 
 notifications:
   email:

etc/scripts/run-itests.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+#
+# Licensed to the Austrian Association for Software Tool Integration (AASTI)
+# under one or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information regarding copyright
+# ownership. The AASTI licenses this file to you under the Apache License,
+# Version 2.0 (the "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# This script is used in the Travis-CI build environment to execute the
+# integration test, and works around the issues of the integration test
+# environment where tests would sporadically fail due to race conditions.
+# The script finds all Java files Named *IT.java and executes them individually
+# in a maven command. A failing test (possibly due to a race condition), will
+# be retried a specified amount of times.
+
+ITEST_DIR=./itests/
+DEFAULT_RETRY=3;
+
+run-test-retry() {
+  for i in `seq 1 $2`; do
+    echo "[INFO] Running test $1 - Run # $i"
+
+    if mvn test -Dtest=$1; then
+      return 0
+    fi
+
+    # TODO: filter out assertion errors (which shouldn't trigger a retry)
+  done
+
+  return 1
+}
+
+cd $ITEST_DIR
+
+for test in `find -name "*IT.java" -exec sh -c 'basename {} | cut -d'.' --complement -f2-' \;`; do
+  if ! run-test-retry $test $DEFAULT_RETRY; then
+    echo "[ERROR] Test $test FAILED after $DEFAULT_RETRY retries"
+    exit 1
+  fi
+done
+
+exit 0