maintenance: add jest as unit test

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 node_modules
 /dist
+/coverage
 
 # local env files
 .env.local

babel.config.js

@@ -1,6 +1,7 @@
 module.exports = {
     presets: [
-        '@vue/app'
+        '@vue/app',
+        '@babel/preset-typescript'
     ],
     plugins: [
         ["component", {

jest.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+    moduleNameMapper: {
+        '@/(.*)': '<rootDir>/src/$1'
+    }
+};

package-lock.json

@@ -9,6 +9,7 @@
       "version": "v1.9.1",
       "license": "MIT",
       "dependencies": {
+        "@babel/preset-typescript": "^7.16.5",
         "base64-js": "^1.5.1",
         "browser-id3-writer": "^4.4.0",
         "core-js": "^3.16.0",
@@ -25,6 +26,7 @@
       },
       "devDependencies": {
         "@types/crypto-js": "^4.0.2",
+        "@types/jest": "^27.0.3",
         "@vue/cli-plugin-babel": "^4.5.13",
         "@vue/cli-plugin-pwa": "^4.5.13",
         "@vue/cli-plugin-typescript": "^4.5.13",
@@ -44,7 +46,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/highlight": "^7.16.0"
       },
@@ -56,7 +57,6 @@
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-      "dev": true,
       "engines": {
         "node": ">=6.9.0"
       }
@@ -65,7 +65,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/code-frame": "^7.16.0",
         "@babel/generator": "^7.16.5",
@@ -95,7 +94,6 @@
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       "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
       "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
-      "dev": true,
       "bin": {
         "semver": "bin/semver.js"
       }
@@ -104,7 +102,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/types": "^7.16.0",
         "jsesc": "^2.5.1",
@@ -118,7 +115,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/types": "^7.16.0"
       },
@@ -143,7 +139,6 @@
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       "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.16.3.tgz",
       "integrity": "sha512-vKsoSQAyBmxS35JUOOt+07cLc6Nk/2ljLIHwmq2/NM6hdioUaqEXq/S+nXvbvXbZkNDlWOymPanJGOc4CBjSJA==",
-      "dev": true,
       "dependencies": {
         "@babel/compat-data": "^7.16.0",
         "@babel/helper-validator-option": "^7.14.5",
@@ -161,7 +156,6 @@
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       "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
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-      "dev": true,
       "bin": {
         "semver": "bin/semver.js"
       }
@@ -170,7 +164,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/helper-annotate-as-pure": "^7.16.0",
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@@ -235,7 +228,6 @@
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-      "dev": true,
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       },
@@ -259,7 +251,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/helper-get-function-arity": "^7.16.0",
         "@babel/template": "^7.16.0",
@@ -273,7 +264,6 @@
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-      "dev": true,
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         "@babel/types": "^7.16.0"
       },
@@ -285,7 +275,6 @@
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-      "dev": true,
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         "@babel/types": "^7.16.0"
       },
@@ -297,7 +286,6 @@
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-      "dev": true,
       "dependencies": {
         "@babel/types": "^7.16.0"
       },
@@ -309,7 +297,6 @@
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-      "dev": true,
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         "@babel/types": "^7.16.0"
       },
@@ -321,7 +308,6 @@
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-      "dev": true,
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@@ -340,7 +326,6 @@
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@@ -352,7 +337,6 @@
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-      "dev": true,
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@@ -375,7 +359,6 @@
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@@ -391,7 +374,6 @@
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@@ -427,7 +408,6 @@
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@@ -436,7 +416,6 @@
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@@ -474,7 +452,6 @@
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@@ -488,7 +465,6 @@
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-      "dev": true,
       "dependencies": {
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       },
@@ -1542,6 +1517,22 @@
         "@babel/core": "^7.0.0-0"
       }
     },
+    "node_modules/@babel/plugin-transform-typescript": {
+      "version": "7.16.1",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-typescript/-/plugin-transform-typescript-7.16.1.tgz",
+      "integrity": "sha512-NO4XoryBng06jjw/qWEU2LhcLJr1tWkhpMam/H4eas/CDKMX/b2/Ylb6EI256Y7+FVPCawwSM1rrJNOpDiz+Lg==",
+      "dependencies": {
+        "@babel/helper-create-class-features-plugin": "^7.16.0",
+        "@babel/helper-plugin-utils": "^7.14.5",
+        "@babel/plugin-syntax-typescript": "^7.16.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
     "node_modules/@babel/plugin-transform-unicode-escapes": {
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@@ -1686,6 +1677,22 @@
         "@babel/core": "^7.0.0-0"
       }
     },
+    "node_modules/@babel/preset-typescript": {
+      "version": "7.16.5",
+      "resolved": "https://registry.npmjs.org/@babel/preset-typescript/-/preset-typescript-7.16.5.tgz",
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+      "dependencies": {
+        "@babel/helper-plugin-utils": "^7.16.5",
+        "@babel/helper-validator-option": "^7.14.5",
+        "@babel/plugin-transform-typescript": "^7.16.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
     "node_modules/@babel/runtime": {
       "version": "7.16.5",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.16.5.tgz",
@@ -1701,7 +1708,6 @@
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-      "dev": true,
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@@ -1715,7 +1721,6 @@
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@@ -1736,7 +1741,6 @@
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         "to-fast-properties": "^2.0.0"
@@ -3272,6 +3276,16 @@
         "@types/istanbul-lib-report": "*"
       }
     },
+    "node_modules/@types/jest": {
+      "version": "27.0.3",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-27.0.3.tgz",
+      "integrity": "sha512-cmmwv9t7gBYt7hNKH5Spu7Kuu/DotGa+Ff+JGRKZ4db5eh8PnKS4LuebJ3YLUoyOyIHraTGyULn23YtEAm0VSg==",
+      "dev": true,
+      "dependencies": {
+        "jest-diff": "^27.0.0",
+        "pretty-format": "^27.0.0"
+      }
+    },
     "node_modules/@types/json-schema": {
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-      "dev": true,
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@@ -5716,7 +5726,6 @@
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@@ -6136,7 +6145,6 @@
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@@ -21932,6 +21898,16 @@
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@@ -22054,6 +22030,16 @@
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@@ -23301,6 +23284,16 @@
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+        "pretty-format": "^27.0.0"
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@@ -25096,7 +25088,6 @@
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@@ -25108,8 +25099,7 @@
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-          "dev": true
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@@ -25314,8 +25304,7 @@
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@@ -25333,7 +25322,6 @@
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@@ -25665,7 +25653,6 @@
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@@ -25673,8 +25660,7 @@
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-      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
+      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
-      "dev": true
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@@ -25829,7 +25815,6 @@
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@@ -26894,8 +26879,7 @@
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-      "dev": true
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@@ -27052,8 +27036,7 @@
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-      "dev": true
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@@ -27064,8 +27047,7 @@
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-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
-      "dev": true
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     "escodegen": {
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@@ -27940,8 +27922,7 @@
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+      "integrity": "sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg=="
-      "dev": true
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     "get-caller-file": {
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@@ -28068,8 +28049,7 @@
     "globals": {
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       "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
-      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
+      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA=="
-      "dev": true
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     "globby": {
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@@ -28160,8 +28140,7 @@
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       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
-      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
-      "dev": true
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     "has-symbols": {
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@@ -30739,8 +30718,7 @@
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       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
-      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ=="
-      "dev": true
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     "js-yaml": {
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@@ -30810,8 +30788,7 @@
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-      "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
+      "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA=="
-      "dev": true
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@@ -30862,7 +30839,6 @@
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-      "dev": true,
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@@ -31783,8 +31759,7 @@
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       "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.1.tgz",
-      "integrity": "sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA==",
+      "integrity": "sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA=="
-      "dev": true
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@@ -34382,8 +34357,7 @@
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-      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w="
-      "dev": true
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@@ -34839,7 +34813,6 @@
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-      "dev": true,
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@@ -35258,8 +35231,7 @@
     "to-fast-properties": {
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       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
-      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4="
-      "dev": true
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     "to-object-path": {
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package.json

@@ -12,10 +12,12 @@
   "scripts": {
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build",
+    "test": "jest",
     "fix-compatibility": "node ./src/fix-compatibility.js",
     "make-extension": "node ./make-extension.js"
   },
   "dependencies": {
+    "@babel/preset-typescript": "^7.16.5",
     "base64-js": "^1.5.1",
     "browser-id3-writer": "^4.4.0",
     "core-js": "^3.16.0",
@@ -32,6 +34,7 @@
   },
   "devDependencies": {
     "@types/crypto-js": "^4.0.2",
+    "@types/jest": "^27.0.3",
     "@vue/cli-plugin-babel": "^4.5.13",
     "@vue/cli-plugin-pwa": "^4.5.13",
     "@vue/cli-plugin-typescript": "^4.5.13",

tsconfig.json

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