description: run go tests
parameters:
  extra_flags:
    type: string
    default: ""
  log_dir:
    type: string
    default: "/tmp/testlogs"
  cache_dir:
    type: string
    default: /tmp/go-cache
  save_cache:
    type: boolean
    default: false
  go_image:
    type: string
    default: "docker.mirror.hashicorp.services/circleci/golang:1.15.11-buster"
  use_docker:
    type: boolean
    default: false
steps:
  - run:
      name: Compute test cache key
      command: |
        TZ=GMT date '+%Y%m%d' > /tmp/go-cache-key
  - restore_cache:
      keys:
        - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
  - run:
      name: Run Go tests
      no_output_timeout: 60m
      command: |
        set -x

        case "<< parameters.extra_flags >>" in
        *-race*) export VAULT_CI_GO_TEST_RACE=1;;
        esac

        # Install CircleCI CLI
        curl -sSL \
            "https://github.com/CircleCI-Public/circleci-cli/releases/download/v${CIRCLECI_CLI_VERSION}/circleci-cli_${CIRCLECI_CLI_VERSION}_linux_amd64.tar.gz" \
          | sudo tar --overwrite -xz \
            -C /usr/local/bin \
            "circleci-cli_${CIRCLECI_CLI_VERSION}_linux_amd64/circleci"

        USE_DOCKER=0
        <<# parameters.use_docker >>
        USE_DOCKER=1
        <</ parameters.use_docker >>

        # Split Go tests by prior test times.  If use_docker is true, only run
        # tests that depend on docker, otherwise only those that don't.
        if [ $USE_DOCKER == 1 ]; then
          package_names=$(go list -test -json ./... |
            jq -r 'select(.Deps != null) |
              select(any(.Deps[] ; contains("github.com/hashicorp/vault/helper/testhelpers/docker"))) |
              .ForTest | select(. != null)' |
              sort -u | circleci tests split --split-by=timings --timings-type=classname)
        else
          package_names=$(go list -test -json ./... |
            jq -r 'select(.Deps != null) |
              select(all(.Deps[] ; contains("github.com/hashicorp/vault/helper/testhelpers/docker")|not)) |
              .ForTest | select(. != null)' |
              sort -u | circleci tests split --split-by=timings --timings-type=classname)
        fi

        # After running tests split step, we are now running the following steps
        # in multiple different containers, each getting a different subset of
        # the test packages in their package_names variable.  Each container
        # has its own remote docker VM.

        make prep
        mkdir -p test-results/go-test

        # Create a docker network for our testcontainer
        if [ $USE_DOCKER == 1 ]; then
          # Despite the fact that we're using a circleci image (thus getting the
          # version they chose for the docker cli) and that we're specifying a
          # docker version to use for the remote docker instances, we occasionally
          # see "client version too new, max supported version 1.39" errors for
          # reasons unclear.
          export DOCKER_API_VERSION=1.39

          export TEST_DOCKER_NETWORK_ID=$(docker network list -q -f 'name=vaulttest')
          if [ -z $TEST_DOCKER_NETWORK_ID ]; then
            TEST_DOCKER_NETWORK_ID=$(docker network create vaulttest)
          fi

          # Start a docker testcontainer to run the tests in
          docker run -d -e TEST_DOCKER_NETWORK_ID \
            -e DOCKER_CERT_PATH -e DOCKER_HOST -e DOCKER_MACHINE_NAME -e DOCKER_TLS_VERIFY -e NO_PROXY \
            -e VAULT_TEST_LOG_DIR=<< parameters.log_dir >> \
            --network vaulttest --name \
            testcontainer << parameters.go_image >> \
            tail -f /dev/null

          # Run tests
          test -d << parameters.cache_dir >> && docker cp << parameters.cache_dir >> testcontainer:/tmp/gocache
          docker exec testcontainer sh -c 'mkdir -p /go/src/github.com/hashicorp/vault'
          docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
          docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH

          docker exec -w /go/src/github.com/hashicorp/vault/ \
            -e GO111MODULE -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
            testcontainer \
            gotestsum --format=short-verbose \
              --junitfile test-results/go-test/results.xml \
              --jsonfile test-results/go-test/results.json \
              -- \
              -tags "${GO_TAGS}" \
              -timeout=60m \
              -parallel=20 \
              << parameters.extra_flags >> \
              ${package_names}
        else
          GOCACHE=<< parameters.cache_dir >> \
            gotestsum --format=short-verbose \
              --junitfile test-results/go-test/results.xml \
              --jsonfile test-results/go-test/results.json \
              -- \
              -tags "${GO_TAGS}" \
              -timeout=60m \
              -parallel=20 \
              << parameters.extra_flags >> \
              ${package_names}
        fi

  - when:
      condition: << parameters.use_docker >>
      steps:
        - run:
            name: Copy test results
            when: always
            command: |
              docker cp testcontainer:/go/src/github.com/hashicorp/vault/test-results .
              docker cp testcontainer:/tmp/gocache << parameters.cache_dir >>
  - when:
      condition: << parameters.save_cache >>
      steps:
        - save_cache:
            when: always
            key: go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
            paths:
            - << parameters.cache_dir >>