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If you are serious about your plugins, you probably want to write tests for it. Unit testing Lua is easy, and many testing frameworks are available. However, you might also want to write integration tests. Again, Kong has your back.

Write integration tests

The preferred testing framework for Kong is busted, though you are free to use another one if you wish.

Kong provides you with a helper to start and stop it from Lua code in your test suite: spec.spec_helpers. This helper also provides you with ways to insert fixtures in your datastore before running your tests, as well as dropping it, and various other helpers.

Assuming you have a configuration file obtained from running make dev in your Kong repository in your current folder, and that the spec.spec_helpers module is available in your LUA_PATH, you can use the following Lua code in busted to start and stop Kong:

local spec_helper = require "spec.spec_helpers"

  -- Run the migrations to prepare the database

  -- Insert some fixtures in the database before running your tests
  spec_helper.insert_fixtures {
    api = {
      {name = "fixture-api", request_host = "", upstream_url = ""}
    consumer = {
      {username = "fixture-consumer"}
    plugin = {
      {name = "key-auth", config = {key_names = {"apikey"}}, __api = 1},
      {name = "key-auth", config = {key_names = {"apikey"}, hide_credentials = true}, __api = 2}

  -- start Kong with your local kong_TEST.yml configuration

  -- stop Kong with your local kong_TEST.yml configuration

describe("thing", function()
  it("should do thing", function()
    -- send requests through Kong

Reminder: With the kong_TEST.yml file, Kong is running with its proxy listening on port 8100 and Admin API on port 8101.

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