Add test case to detect stack overflow error (#904)

* add test case to detect stackoverflow errors

* use bash insted of sh

bin/tests/run-all-test

@@ -0,0 +1,33 @@
+#!/bin/bash
+# this bash script will loop through all the .sh files under bin/tests
+# execute the script and check the result (exit code) to see if
+# there's any error
+
+echo "IMPORTANT: this script should be run by the CI (e.g. Shippable) only. There's no need to run this script manually."
+echo "Please press CTRL+C to stop or the script will continue in 10 seconds."
+
+sleep 10
+
+successes=0
+failures=0
+for SCRIPT in $(ls -l ./bin/tests/*.sh | grep -v all)
+do
+    if [ -f ${SCRIPT} -a -x ${SCRIPT} ]; then
+        echo "Running $SCRIPT (output to /dev/null)"
+        ${SCRIPT} 2>&1 > /dev/null
+        rc=$?
+        if [[ ${rc} != 0 ]]; then
+            >&2 echo "ERROR!! FAILED TO RUN ${SCRIPT}"
+            ((failures+=1))
+        else
+            ((successes+=1))
+        fi
+    fi
+done
+
+if (( failures > 0 )); then
+   >&2 echo "[ERROR] ${failures} out of $((failures+successes)) scripts failed."
+   exit 1
+else
+    echo "[SUCCESS] ${successes} generators finished."
+fi

bin/tests/test-debug-supporting-files.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+SCRIPT="$0"
+echo "# START SCRIPT: $SCRIPT"
+
+while [ -h "$SCRIPT" ] ; do
+  ls=`ls -ld "$SCRIPT"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    SCRIPT="$link"
+  else
+    SCRIPT=`dirname "$SCRIPT"`/"$link"
+  fi
+done
+
+if [ ! -d "${APP_DIR}" ]; then
+  APP_DIR=`dirname "$SCRIPT"`/..
+  APP_DIR=`cd "${APP_DIR}"; pwd`
+fi
+
+executable="./modules/openapi-generator-cli/target/openapi-generator-cli.jar"
+
+if [ ! -f "$executable" ]
+then
+  mvn -B clean package $@
+fi
+
+# if you've executed sbt assembly previously it will use that instead.
+export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
+ags="generate -t modules/openapi-generator/src/main/resources/python -i modules/openapi-generator/src/test/resources/3_0/issue_241.yaml -g python -o /tmp/test-debug-supporting-files/ -DpackageName=petstore_api -DdebugSupportingFiles=true $@"
+
+if [[ $(java $JAVA_OPTS -jar $executable $ags 2>&1 | grep "StackOverflowError") ]]; then
+    echo "There are StackOverflowError. Please check the result."
+    exit 1
+else
+    echo "No StackOverflowError found."
+fi
+

modules/openapi-generator/src/test/resources/3_0/issue_241.yaml

@@ -0,0 +1,47 @@
+openapi: "3.0.0"
+info:
+  description: "test"
+  version: "1.0.0"
+  title: "myTest"
+  contact:
+    email: "my@mail.com"
+servers:
+- url: "http://localhost:9998/v1"
+tags:
+- name: "users"
+paths:
+  /users/create/{username}:
+    post:
+      tags:
+      - "user"
+      operationId: "createUser"
+      parameters:
+      - name: "username"
+        in: "path"
+        required: true
+        schema:
+          type: "string"
+      responses:
+        200:
+          description: "The User just created"
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/User"
+components:
+  schemas:
+    User:
+      allOf:
+        - $ref: "#/components/schemas/UserDetail"
+        - type: "object"
+          description: "The User"
+          required:
+          - "userid"
+          - "username"
+    UserDetail:
+      type: "object"
+      description: "Detail of a User"
+      properties:
+        name:
+          type: "string"
+          description: "the name of the user"

shippable.yml

@@ -39,3 +39,5 @@ build:
     - ./bin/run-all-petstore
     # generate all petstore samples (openapi3)
     - ./bin/openapi3/run-all-petstore
+    # generate test scripts
+    - ./bin/tests/run-all-test