Feature/testing. Closes #1

.babelrc

@@ -0,0 +1,16 @@
+{
+  "env": {
+    "test": {
+      "presets": [
+        [
+          "@babel/preset-env",
+          {
+            "targets": {
+              "node": "current"
+            }
+          }
+        ]
+      ]
+    }
+  }
+}

jest.config.js

@@ -0,0 +1,49 @@
+/**
+ * Create a mapping of the modules using the jsconfig
+ *
+ * @type {Object}
+ */
+const moduleNameMapper = () => {
+  // keep the webpack aliases in sync with the jsconfig
+  const mappings = Object.entries(require('./jsconfig.json').compilerOptions.paths);
+
+  return mappings.reduce((result, [key, paths]) => {
+    const name = '^' + key.replace('/*', '/(.*)$');
+    const directory = paths[0].replace('./', '<rootDir>/').replace('/*', '/$1');
+
+    result[name] = directory;
+
+    return result;
+  }, {});
+};
+
+module.exports = {
+  // Automatically clear mock calls and instances between every test
+  clearMocks: true,
+  moduleNameMapper: {
+    ...moduleNameMapper(),
+    '@nuxtjs/composition-api': '@nuxtjs/composition-api/lib/cjs/entrypoint.js',
+  },
+  moduleFileExtensions: [
+    'js',
+    'vue',
+    'json',
+  ],
+  transform: {
+    '\\.js$': 'babel-jest',
+    '.*\\.(vue)$': 'vue-jest',
+  },
+  collectCoverage: false,
+  collectCoverageFrom: [
+    '<rootDir>/**/*.vue',
+    '<rootDir>/middleware/**/*.js',
+    '<rootDir>/plugins/**/*.js',
+    '<rootDir>/store/**/*.js',
+  ],
+  coveragePathIgnorePatterns: [
+    'node_modules',
+  ],
+  snapshotSerializers: [
+    'jest-serializer-vue',
+  ],
+};