Testing A Central server running in Docker containers

Testing A Central server running in Docker containers

Steps to run unit and integration tests in a central odk that is running in docker containers

  1. Install and run docker and central following https://docs.getodk.org/central-install-digital-ocean/#getting-and-setting-up-central . docker ps should resemble the following (except for "CONTAINER ID"s).
		CONTAINER ID   IMAGE                               COMMAND                  CREATED        STATUS                 PORTS                                                                      NAMES
		1e1139a2642c   central_nginx                       "/bin/bash /scripts/…"   2 months ago   Up 4 hours (healthy)>80/tcp, :::80->80/tcp,>443/tcp, :::443->443/tcp   nginx
		579babb89351   central_service                     "docker-entrypoint.s…"   2 months ago   Up 4 hours             8383/tcp                                                                   service
		2eaf0f8b461b   central_enketo                      "docker-entrypoint.s…"   2 months ago   Up 4 hours             8005/tcp                                                                   enketo
		444b4e46ba88   redis:5                             "docker-entrypoint.s…"   2 months ago   Up 4 hours             6379/tcp                                                                   enketo_redis_main
		db76c1ee6bb9   postgres:9.6                        "docker-entrypoint.s…"   2 months ago   Up 4 hours             5432/tcp                                                                   central_postgres_1
		3aa2fad29c89   itsissa/namshi-smtp:4.89-2.deb9u5   "/bin/entrypoint.sh …"   2 months ago   Up 4 hours             25/tcp                                                                     mail
		c69105cd822a   redis:5                             "docker-entrypoint.s…"   2 months ago   Up 4 hours             6379/tcp                                                                   enketo_redis_cache
		9d252e105a52   getodk/pyxform-http:v1.3.3          "waitress-serve --po…"   2 months ago   Up 4 hours                                                                                        pyxform
  1. In file central/config/default.json test database change "host" to "central_postgres_1" from "localhost". I.E, in directory central/server/config, git diff should display.

     diff --git a/config/default.json b/config/default.json
     index e5db0c9..ab27a4b 100644
     --- a/config/default.json
     +++ b/config/default.json
     @@ -32,7 +32,7 @@
     "test": {
     "database": {
     -      "host": "localhost",
     +      "host": "central_postgres_1",
         "user": "jubilant",
        "password": "jubilant",
        "database": "jubilant_test"
  2. In central/server directory create file integration-test.dockerfile as follows:

     FROM node:12
         RUN apt update && apt install -y make
         WORKDIR /server
         COPY . .
         CMD ["make" ,"test-integration"]
  3. Create "ti" docker container

     docker build -f integration-test.dockerfile  -t ti .
  4. Figure out the postgres "CONTAINER ID" . In the "docker ps" output, is the 12 character string before "postgres" or just execute:

     docker ps | grep postgres | cut -d " " -f1
  5. Open a terminal inside the postgres container. Replace <psq> below with the "CONTAINER ID" you found above.

     docker exec -it <psq> /bin/bash
  6. In the terminal opened above, enter the following, one line at a time. There should be no
    errors. This step creates a permanant database inside the postgres container. It only needs to be repeated after each central "docker build".

     psql odk odk
     CREATE USER jubilant WITH PASSWORD 'jubilant';
     CREATE DATABASE jubilant_test with owner=jubilant encoding=UTF8;
     \c jubilant;
  7. Run the test

     docker run  --network central_default  -t ti

You should see an install of node followed by lots of very detailed reporting. My system reports 756 passing, 2 failing. I have not investigated. To see the log from my system:

    wget https://www.dropbox.com/s/mjsifh8a2e4pb4h/2021-07-27-integration-test-docker.log
    sudo apt install lnav #ubuntu
    lnav 2021-07-27-integration-test-docker.log

lnav tips: Push your "Home" key to see the start of the file; ? shows/hides help

  1. run test-unit

     docker run  -t ti make test-unit

On my system the tally reads "561 passing (4s) 1 pending 1 failing". I have not analyzed those results.
The link to the log file from my system is: https://www.dropbox.com/s/krg2o26dcvx6wvi/2021-08-01-unit-test-docker.log . See previous step for help reading that.

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