Set up mutation tests

.docker/docker-compose.dev.yml

@@ -12,5 +12,6 @@ services:
       - ../src/:/app/src
       - ../package.json:/app/package.json
       - ../package-lock.json:/app/package-lock.json
+      - ../stryker.conf.js:/app/stryker.conf.js
       - ../test/:/app/test
       - ../tsconfig.json:/app/tsconfig.json

.dockerignore

@@ -1,6 +1,7 @@
 /.dependabot/
 /.github/
 /.scripts/
+/.stryker-tmp/
 /build/
 /Makefile
 /node_modules/

.github/workflows/ci.yml

@@ -57,6 +57,7 @@ jobs:
           - make lint
           - make unit-test
           - make integration-test
+          - make mutation-test
           - TARGET=dev .github/smoke-test.sh
           - TARGET=prod .github/smoke-test.sh
           - TARGET=prod make api-validate

.gitignore

@@ -1,2 +1,3 @@
+/.stryker-tmp/
 /build/
 /node_modules/

Dockerfile

@@ -48,6 +48,7 @@ ENV NODE_ENV=development
 COPY .eslintignore \
     .eslintrc.js \
     jest.config.js \
+    stryker.conf.json \
     tsconfig.json \
     ./
 COPY --from=npm-dev /app/ .

Makefile

@@ -1,5 +1,5 @@
 .DEFAULT_GOAL = help
-.PHONY: help install gitmodules build start start-db init-db stop wait-healthy sh exec logs watch lint fix test unit-test integration-test api-validate api-test run dev prod
+.PHONY: help install gitmodules build start start-db init-db stop wait-healthy sh exec logs watch lint fix test unit-test integration-test api-validate api-test mutation-test run dev prod
 
 SHELL = /usr/bin/env bash
 
@@ -108,6 +108,11 @@ api-test: ## Run the API tests
 	$(MAKE) start wait-healthy
 	docker run --rm --init --network host --mount "type=bind,source=$(CURDIR)/test/hypertest/,destination=/tests" hydrofoil/hypertest:_0.4.1 --baseUri http://localhost:8080/; ${STOP_WITH_LOGS}
 
+mutation-test: export TARGET = dev
+mutation-test: ## Run the mutation tests
+	$(MAKE) start-db
+	${DOCKER_COMPOSE} run --rm app npm run test:mutation; ${STOP}
+
 run:
 	$(MAKE) init-db
 	${DOCKER_COMPOSE} up --abort-on-container-exit --exit-code-from app; ${STOP}