test: add jest and create tests for charts (#170)

* test: add jest and create tests for charts * test: move babel-jest config to jest config file

Author: thabarbados

.babelrc

@@ -1,4 +1,17 @@
 {
+ "presets": [
+ [
+ "@vue/cli-plugin-babel/preset",
+ {
+ "modules": false,
+ "targets": {
+ "browsers": [
+ "last 2 versions"
+ ]
+ }
+ }
+ ]
+ ],
  "plugins": [
  [
  "module:@import-meta-env/babel",

jest.config.js

@@ -0,0 +1,19 @@
+module.exports = {
+ testEnvironment: 'jsdom',
+ testMatch: ['<rootDir>/test/(*.)spec.(js|ts)'],
+ moduleFileExtensions: ['js', 'ts', 'vue'],
+ transform: {
+ '^.+\\.vue$': '@vue/vue2-jest',
+ // TODO: replace with @swc/jest after code migration to typescript
+ '\\.js$': [
+ 'babel-jest',
+ {
+ presets: ['@vue/cli-plugin-babel/preset'],
+ plugins: ['babel-plugin-transform-import-meta'],
+ },
+ ],
+ },
+ collectCoverage: true,
+ collectCoverageFrom: ['<rootDir>/src/*'],
+ coverageReporters: ['lcovonly', 'text'],
+};

package.json

@@ -26,7 +26,8 @@
  "postpublish": "del ./package",
  "build": "rollup -c",
  "lint": "eslint --ext .js,.vue src",
- "test": "pnpm lint",
+ "unit": "jest -c jest.config.js",
+ "test": "pnpm lint && pnpm unit",
  "format": "prettier --write src rollup.config.js",
  "test:size": "size-limit",
  "commit": "cz",
@@ -64,8 +65,13 @@
  "@storybook/vue": "^6.4.20",
  "@swc/core": "^1.2.124",
  "@swc/helpers": "^0.3.2",
+ "@vue/cli-plugin-babel": "^5.0.4",
  "@vue/compiler-sfc": "^3.2.26",
+ "@vue/test-utils": "1",
+ "@vue/vue2-jest": "^27.0.0-alpha.4",
+ "babel-jest": "^27.5.1",
  "babel-loader": "^8.2.4",
+ "babel-plugin-transform-import-meta": "^2.1.1",
  "browserslist": "^4.19.1",
  "clean-publish": "^3.4.5",
  "commitizen": "^4.2.4",
@@ -74,6 +80,7 @@
  "eslint": "^8.5.0",
  "eslint-config-prettier": "^8.3.0",
  "eslint-plugin-vue": "^8.2.0",
+ "jest": "^27.5.1",
  "nano-staged": "^0.5.0",
  "prettier": "^2.5.1",
  "rollup": "^2.62.0",
@@ -83,9 +90,9 @@
  "simple-github-release": "^1.0.0",
  "size-limit": "^7.0.8",
  "standard-version": "^9.3.2",
- "vue": "^2.6.8",
+ "vue": "^2.6.14",
  "vue-loader": "15.9.8",
- "vue-template-compiler": "^2.1.6"
+ "vue-template-compiler": "^2.6.14"
  },
  "pnpm": {
  "overrides": {