refactor: add tests

.gitignore

@@ -7,4 +7,5 @@ npm-debug.log
 /.idea/
 
 # misc
-package-lock.json
+package-lock.json
+/coverage/

jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  preset: '@vue/cli-plugin-unit-jest/presets/typescript-and-babel',
+  collectCoverage: true
+}

package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build",
+    "test:unit": "vue-cli-service test:unit",
     "lint": "vue-cli-service lint",
     "i18n:report": "vue-cli-service i18n:report --src './src/**/*.?(js|vue)' --locales './src/locales/**/*.json'"
   },
@@ -22,15 +23,18 @@
   },
   "devDependencies": {
     "@babel/polyfill": "^7.10.1",
+    "@types/jest": "^24.0.19",
     "@typescript-eslint/eslint-plugin": "^2.26.0",
     "@typescript-eslint/parser": "^2.26.0",
     "@vue/cli-plugin-babel": "~4.3.0",
     "@vue/cli-plugin-eslint": "~4.3.0",
     "@vue/cli-plugin-router": "^4.4.1",
     "@vue/cli-plugin-typescript": "^4.4.1",
+    "@vue/cli-plugin-unit-jest": "^4.4.1",
     "@vue/cli-plugin-vuex": "^4.4.1",
     "@vue/cli-service": "~4.3.0",
     "@vue/eslint-config-typescript": "^5.0.2",
+    "@vue/test-utils": "^1.0.3",
     "babel-eslint": "^10.1.0",
     "bootstrap": "^4.3.1",
     "eslint": "^6.7.2",
@@ -59,7 +63,18 @@
     "parserOptions": {
       "parser": "@typescript-eslint/parser"
     },
-    "rules": {}
+    "rules": {},
+    "overrides": [
+      {
+        "files": [
+          "**/__tests__/*.{j,t}s?(x)",
+          "**/tests/unit/**/*.spec.{j,t}s?(x)"
+        ],
+        "env": {
+          "jest": true
+        }
+      }
+    ]
   },
   "browserslist": [
     "> 1%",

tests/unit/store/mutations.spec.ts

@@ -0,0 +1,38 @@
+import initialState from '@/store/state'
+import mutations from '@/store/mutations'
+import {State} from "@/types/State";
+
+test('set metadata', () => {
+    const testState: State = { ...initialState }
+    const metadata = {}
+    mutations.setMetadata(testState, metadata)
+    expect(testState.metadata).toBe(metadata)
+})
+
+test('set samples', () => {
+    const testState: State = { ...initialState }
+    const samples = {}
+    mutations.setSamples(testState, samples)
+    expect(testState.samples).toBe(samples)
+})
+
+test('set selected sample', () => {
+    const testState: State = { ...initialState }
+    const sample = {}
+    mutations.setSelectedSample(testState, sample)
+    expect(testState.selectedSample).toBe(sample)
+})
+
+test('set selected sample phenotypes', () => {
+    const testState: State = { ...initialState }
+    const phenotypes = {}
+    mutations.setSelectedSamplePhenotypes(testState, phenotypes)
+    expect(testState.selectedSamplePhenotypes).toBe(phenotypes)
+})
+
+test('set records', () => {
+    const testState: State = { ...initialState }
+    const records = {}
+    mutations.setRecords(testState, records)
+    expect(testState.records).toBe(records)
+})

tsconfig.json

@@ -14,7 +14,8 @@
     "types": [
       "webpack-env",
       "webpack",
-      "webpack-env"
+      "webpack-env",
+      "jest"
     ],
     "paths": {
       "@/*": [