run-end-to-end-tests.sh

#!/bin/bash

# Setup functions we'll use below

function print_logs {
  forever list --no-colors | grep build/server | awk '{print $8}' | xargs cat
}

function check_server_alive {
  # Wait for servers to start
  IS_UP=1
  MAX_SERVER_RETRIES=30
  while [ $IS_UP -ne 0 ] && [[ $MAX_SERVER_RETRIES -ne 0 ]]
  do
    sleep 0.5
    curl -f http://localhost:3000/alive &> /dev/null
    IS_UP=$(echo $?)
    let "MAX_SERVER_RETRIES--"
  done

  if [[ $IS_UP -ne 0 ]]
  then
    echo "Server seems to not be responding, printing logs below"
    print_logs
    exit 1
  fi
  # Now the server is running
  echo "Gazelle server is responding"
}

function run_test {
  # Clean up state in between
  forever restartall
  # db:seed is run by the package.json script so not needed
  check_server_alive
  timeout 3m npm run test:e2e -- --ci
}

# Run our server
cd ~/gazelle-server

# Prep database (database already created in the docker container)
npm run db:migrate

forever start build/server.js &> /dev/null

echo "Gazelle server started"

# Run display needed for nightmare that we use for E2E tests
sudo Xvfb -ac -screen scrn 1280x2000x24 :9.0 &
SCREEN_PID=$(echo $!)
export DISPLAY=:9.0

echo "Starting testing"

# Initialize variable
EXIT_CODE=1
MAX_TEST_RETRIES=3
# We rerun E2E tests as they can some times be flaky.
# TODO: When https://github.com/facebook/jest/issues/6470 is implemented we can use that instead
while [[ $EXIT_CODE -ne 0 ]] && [[ $MAX_TEST_RETRIES -ne 0 ]]
do
  echo "$MAX_RETRIES left"
  run_test
  EXIT_CODE=$(echo $?)
  let "MAX_TEST_RETRIES--"
  # After it failed once we set the DEBUG flag for more information
  export DEBUG=nightmare*
done

if [[ $EXIT_CODE -ne 0 ]]
then
  echo "Printing logs since test failed"
  print_logs
fi

# Cleanup
echo "Tests finished, starting cleanup"

forever stopall

sudo kill $SCREEN_PID

# We also have to kill the node processes that they spawn if there are any
ps -a | grep node | awk '{print $1}' | xargs --no-run-if-empty sudo kill
exit $EXIT_CODE