diff --git a/.editorconfig b/.editorconfig
index 317448b..0db42b4 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,16 +1,16 @@
-root = true
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-
-[*.txt]
-indent_style = tab
-indent_size = 4
-
-[*.{diff,md}]
-trim_trailing_whitespace = false
\ No newline at end of file
+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+
+[*.txt]
+indent_style = tab
+indent_size = 2
+
+[*.{diff,md}]
+trim_trailing_whitespace = false
diff --git a/.eslintrc b/.eslintrc
index d88f5ef..7b2355a 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -12,11 +12,36 @@
     "parser": "babel-eslint"
   },
   "rules": {
-    "no-shadow": ["error", { "allow": ["state"]}],
-    "no-param-reassign": ["error", {
-      "props": true,
-      "ignorePropertyModificationsFor": ["Vue"]
-    }],
-    "no-debugger": ["warn"]
-  }
+    "no-shadow": [
+      "error",
+      {
+        "allow": [
+          "state"
+        ]
+      }
+    ],
+    "no-param-reassign": [
+      "error",
+      {
+        "props": true,
+        "ignorePropertyModificationsFor": [
+          "Vue"
+        ]
+      }
+    ],
+    "no-debugger": [
+      "warn"
+    ]
+  },
+  "overrides": [
+    {
+      "files": [
+        "**/__tests__/*.{j,t}s?(x)",
+        "**/tests/unit/**/*.spec.{j,t}s?(x)"
+      ],
+      "env": {
+        "jest": true
+      }
+    }
+  ]
 }
diff --git a/.gitignore b/.gitignore
index 0442f05..6ea0f4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,6 @@ yarn-error.log*
 
 ## environment files
 .env
+
+## tests
+coverage
diff --git a/jest.config.js b/jest.config.js
new file mode 100644
index 0000000..f78452f
--- /dev/null
+++ b/jest.config.js
@@ -0,0 +1,7 @@
+module.exports = {
+  preset: '@vue/cli-plugin-unit-jest',
+  verbose: true,
+  collectCoverage: true,
+  collectCoverageFrom: ['src/**/*.{js,vue}', '!**/node_modules/**'],
+  coverageReporters: ['html', 'text-summary'],
+};
diff --git a/package-lock.json b/package-lock.json
index c2c761d..c21f7c9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "anhqv-stats",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -942,6 +942,16 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@cnakazawa/watch": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@cnakazawa/watch/-/watch-1.0.4.tgz",
+      "integrity": "sha512-v9kIhKwjeZThiWrLmj0y17CWoyddASLj9O2yvbZkbvw/N3rWOYy9zkV66ursAoVr0mV15bL8g0c4QZUE6cdDoQ==",
+      "dev": true,
+      "requires": {
+        "exec-sh": "^0.3.2",
+        "minimist": "^1.2.0"
+      }
+    },
     "@hapi/address": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/@hapi/address/-/address-2.1.4.tgz",
@@ -992,6 +1002,234 @@
         "postcss": "^7.0.0"
       }
     },
+    "@jest/console": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/console/-/console-24.9.0.tgz",
+      "integrity": "sha512-Zuj6b8TnKXi3q4ymac8EQfc3ea/uhLeCGThFqXeC8H9/raaH8ARPUTdId+XyGd03Z4In0/VjD2OYFcBF09fNLQ==",
+      "dev": true,
+      "requires": {
+        "@jest/source-map": "^24.9.0",
+        "chalk": "^2.0.1",
+        "slash": "^2.0.0"
+      }
+    },
+    "@jest/core": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/core/-/core-24.9.0.tgz",
+      "integrity": "sha512-Fogg3s4wlAr1VX7q+rhV9RVnUv5tD7VuWfYy1+whMiWUrvl7U3QJSJyWcDio9Lq2prqYsZaeTv2Rz24pWGkJ2A==",
+      "dev": true,
+      "requires": {
+        "@jest/console": "^24.7.1",
+        "@jest/reporters": "^24.9.0",
+        "@jest/test-result": "^24.9.0",
+        "@jest/transform": "^24.9.0",
+        "@jest/types": "^24.9.0",
+        "ansi-escapes": "^3.0.0",
+        "chalk": "^2.0.1",
+        "exit": "^0.1.2",
+        "graceful-fs": "^4.1.15",
+        "jest-changed-files": "^24.9.0",
+        "jest-config": "^24.9.0",
+        "jest-haste-map": "^24.9.0",
+        "jest-message-util": "^24.9.0",
+        "jest-regex-util": "^24.3.0",
+        "jest-resolve": "^24.9.0",
+        "jest-resolve-dependencies": "^24.9.0",
+        "jest-runner": "^24.9.0",
+        "jest-runtime": "^24.9.0",
+        "jest-snapshot": "^24.9.0",
+        "jest-util": "^24.9.0",
+        "jest-validate": "^24.9.0",
+        "jest-watcher": "^24.9.0",
+        "micromatch": "^3.1.10",
+        "p-each-series": "^1.0.0",
+        "realpath-native": "^1.1.0",
+        "rimraf": "^2.5.4",
+        "slash": "^2.0.0",
+        "strip-ansi": "^5.0.0"
+      },
+      "dependencies": {
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "@jest/environment": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/environment/-/environment-24.9.0.tgz",
+      "integrity": "sha512-5A1QluTPhvdIPFYnO3sZC3smkNeXPVELz7ikPbhUj0bQjB07EoE9qtLrem14ZUYWdVayYbsjVwIiL4WBIMV4aQ==",
+      "dev": true,
+      "requires": {
+        "@jest/fake-timers": "^24.9.0",
+        "@jest/transform": "^24.9.0",
+        "@jest/types": "^24.9.0",
+        "jest-mock": "^24.9.0"
+      }
+    },
+    "@jest/fake-timers": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/fake-timers/-/fake-timers-24.9.0.tgz",
+      "integrity": "sha512-eWQcNa2YSwzXWIMC5KufBh3oWRIijrQFROsIqt6v/NS9Io/gknw1jsAC9c+ih/RQX4A3O7SeWAhQeN0goKhT9A==",
+      "dev": true,
+      "requires": {
+        "@jest/types": "^24.9.0",
+        "jest-message-util": "^24.9.0",
+        "jest-mock": "^24.9.0"
+      }
+    },
+    "@jest/reporters": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/reporters/-/reporters-24.9.0.tgz",
+      "integrity": "sha512-mu4X0yjaHrffOsWmVLzitKmmmWSQ3GGuefgNscUSWNiUNcEOSEQk9k3pERKEQVBb0Cnn88+UESIsZEMH3o88Gw==",
+      "dev": true,
+      "requires": {
+        "@jest/environment": "^24.9.0",
+        "@jest/test-result": "^24.9.0",
+        "@jest/transform": "^24.9.0",
+        "@jest/types": "^24.9.0",
+        "chalk": "^2.0.1",
+        "exit": "^0.1.2",
+        "glob": "^7.1.2",
+        "istanbul-lib-coverage": "^2.0.2",
+        "istanbul-lib-instrument": "^3.0.1",
+        "istanbul-lib-report": "^2.0.4",
+        "istanbul-lib-source-maps": "^3.0.1",
+        "istanbul-reports": "^2.2.6",
+        "jest-haste-map": "^24.9.0",
+        "jest-resolve": "^24.9.0",
+        "jest-runtime": "^24.9.0",
+        "jest-util": "^24.9.0",
+        "jest-worker": "^24.6.0",
+        "node-notifier": "^5.4.2",
+        "slash": "^2.0.0",
+        "source-map": "^0.6.0",
+        "string-length": "^2.0.0"
+      },
+      "dependencies": {
+        "jest-worker": {
+          "version": "24.9.0",
+          "resolved": "https://registry.npmjs.org/jest-worker/-/jest-worker-24.9.0.tgz",
+          "integrity": "sha512-51PE4haMSXcHohnSMdM42anbvZANYTqMrr52tVKPqqsPJMzoP6FYYDVqahX/HrAoKEKz3uUPzSvKs9A3qR4iVw==",
+          "dev": true,
+          "requires": {
+            "merge-stream": "^2.0.0",
+            "supports-color": "^6.1.0"
+          }
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
+    "@jest/source-map": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/source-map/-/source-map-24.9.0.tgz",
+      "integrity": "sha512-/Xw7xGlsZb4MJzNDgB7PW5crou5JqWiBQaz6xyPd3ArOg2nfn/PunV8+olXbbEZzNl591o5rWKE9BRDaFAuIBg==",
+      "dev": true,
+      "requires": {
+        "callsites": "^3.0.0",
+        "graceful-fs": "^4.1.15",
+        "source-map": "^0.6.0"
+      },
+      "dependencies": {
+        "callsites": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+          "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
+    "@jest/test-result": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/test-result/-/test-result-24.9.0.tgz",
+      "integrity": "sha512-XEFrHbBonBJ8dGp2JmF8kP/nQI/ImPpygKHwQ/SY+es59Z3L5PI4Qb9TQQMAEeYsThG1xF0k6tmG0tIKATNiiA==",
+      "dev": true,
+      "requires": {
+        "@jest/console": "^24.9.0",
+        "@jest/types": "^24.9.0",
+        "@types/istanbul-lib-coverage": "^2.0.0"
+      }
+    },
+    "@jest/test-sequencer": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/test-sequencer/-/test-sequencer-24.9.0.tgz",
+      "integrity": "sha512-6qqsU4o0kW1dvA95qfNog8v8gkRN9ph6Lz7r96IvZpHdNipP2cBcb07J1Z45mz/VIS01OHJ3pY8T5fUY38tg4A==",
+      "dev": true,
+      "requires": {
+        "@jest/test-result": "^24.9.0",
+        "jest-haste-map": "^24.9.0",
+        "jest-runner": "^24.9.0",
+        "jest-runtime": "^24.9.0"
+      }
+    },
+    "@jest/transform": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/transform/-/transform-24.9.0.tgz",
+      "integrity": "sha512-TcQUmyNRxV94S0QpMOnZl0++6RMiqpbH/ZMccFB/amku6Uwvyb1cjYX7xkp5nGNkbX4QPH/FcB6q1HBTHynLmQ==",
+      "dev": true,
+      "requires": {
+        "@babel/core": "^7.1.0",
+        "@jest/types": "^24.9.0",
+        "babel-plugin-istanbul": "^5.1.0",
+        "chalk": "^2.0.1",
+        "convert-source-map": "^1.4.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "graceful-fs": "^4.1.15",
+        "jest-haste-map": "^24.9.0",
+        "jest-regex-util": "^24.9.0",
+        "jest-util": "^24.9.0",
+        "micromatch": "^3.1.10",
+        "pirates": "^4.0.1",
+        "realpath-native": "^1.1.0",
+        "slash": "^2.0.0",
+        "source-map": "^0.6.1",
+        "write-file-atomic": "2.4.1"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
+    "@jest/types": {
+      "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/@jest/types/-/types-24.9.0.tgz",
+      "integrity": "sha512-XKK7ze1apu5JWQ5eZjHITP66AX+QsLlbaJRBGYr8pNzwcAE2JVkwnf0yqjHTsDRcjR0mujy/NmZMXw5kl+kGBw==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "^2.0.0",
+        "@types/istanbul-reports": "^1.1.1",
+        "@types/yargs": "^13.0.0"
+      }
+    },
     "@kazupon/vue-i18n-loader": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/@kazupon/vue-i18n-loader/-/vue-i18n-loader-0.3.0.tgz",
@@ -1067,6 +1305,47 @@
         }
       }
     },
+    "@types/babel__core": {
+      "version": "7.1.6",
+      "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.1.6.tgz",
+      "integrity": "sha512-tTnhWszAqvXnhW7m5jQU9PomXSiKXk2sFxpahXvI20SZKu9ylPi8WtIxueZ6ehDWikPT0jeFujMj3X4ZHuf3Tg==",
+      "dev": true,
+      "requires": {
+        "@babel/parser": "^7.1.0",
+        "@babel/types": "^7.0.0",
+        "@types/babel__generator": "*",
+        "@types/babel__template": "*",
+        "@types/babel__traverse": "*"
+      }
+    },
+    "@types/babel__generator": {
+      "version": "7.6.1",
+      "resolved": "https://registry.npmjs.org/@types/babel__generator/-/babel__generator-7.6.1.tgz",
+      "integrity": "sha512-bBKm+2VPJcMRVwNhxKu8W+5/zT7pwNEqeokFOmbvVSqGzFneNxYcEBro9Ac7/N9tlsaPYnZLK8J1LWKkMsLAew==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@types/babel__template": {
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/@types/babel__template/-/babel__template-7.0.2.tgz",
+      "integrity": "sha512-/K6zCpeW7Imzgab2bLkLEbz0+1JlFSrUMdw7KoIIu+IUdu51GWaBZpd3y1VXGVXzynvGa4DaIaxNZHiON3GXUg==",
+      "dev": true,
+      "requires": {
+        "@babel/parser": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@types/babel__traverse": {
+      "version": "7.0.9",
+      "resolved": "https://registry.npmjs.org/@types/babel__traverse/-/babel__traverse-7.0.9.tgz",
+      "integrity": "sha512-jEFQ8L1tuvPjOI8lnpaf73oCJe+aoxL6ygqSy6c8LcW98zaC+4mzWuQIRCEvKeCOu+lbqdXcg4Uqmm1S8AP1tw==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.3.0"
+      }
+    },
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
@@ -1090,6 +1369,40 @@
         "@types/node": "*"
       }
     },
+    "@types/istanbul-lib-coverage": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.1.tgz",
+      "integrity": "sha512-hRJD2ahnnpLgsj6KWMYSrmXkM3rm2Dl1qkx6IOFD5FnuNPXJIG5L0dhgKXCYTRMGzU4n0wImQ/xfmRc4POUFlg==",
+      "dev": true
+    },
+    "@types/istanbul-lib-report": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-lib-report/-/istanbul-lib-report-3.0.0.tgz",
+      "integrity": "sha512-plGgXAPfVKFoYfa9NpYDAkseG+g6Jr294RqeqcqDixSbU34MZVJRi/P+7Y8GDpzkEwLaGZZOpKIEmeVZNtKsrg==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "*"
+      }
+    },
+    "@types/istanbul-reports": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-reports/-/istanbul-reports-1.1.1.tgz",
+      "integrity": "sha512-UpYjBi8xefVChsCoBpKShdxTllC9pwISirfoZsUa2AAdQg/Jd2KQGtSbw+ya7GPo7x/wAPlH6JBhKhAsXUEZNA==",
+      "dev": true,
+      "requires": {
+        "@types/istanbul-lib-coverage": "*",
+        "@types/istanbul-lib-report": "*"
+      }
+    },
+    "@types/jest": {
+      "version": "24.9.1",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.9.1.tgz",
+      "integrity": "sha512-Fb38HkXSVA4L8fGKEZ6le5bB8r6MRWlOCZbVuWZcmOMSCd2wCYOwN1ibj8daIoV9naq7aaOZjrLCoCMptKU/4Q==",
+      "dev": true,
+      "requires": {
+        "jest-diff": "^24.3.0"
+      }
+    },
     "@types/minimatch": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
@@ -1114,6 +1427,39 @@
       "integrity": "sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==",
       "dev": true
     },
+    "@types/stack-utils": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz",
+      "integrity": "sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==",
+      "dev": true
+    },
+    "@types/strip-bom": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/strip-bom/-/strip-bom-3.0.0.tgz",
+      "integrity": "sha1-FKjsOVbC6B7bdSB5CuzyHCkK69I=",
+      "dev": true
+    },
+    "@types/strip-json-comments": {
+      "version": "0.0.30",
+      "resolved": "https://registry.npmjs.org/@types/strip-json-comments/-/strip-json-comments-0.0.30.tgz",
+      "integrity": "sha512-7NQmHra/JILCd1QqpSzl8+mJRc8ZHz3uDm8YV1Ks9IhK0epEiTw8aIErbvH9PI+6XbqhyIQy3462nEsn7UVzjQ==",
+      "dev": true
+    },
+    "@types/yargs": {
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       "resolved": "https://registry.npmjs.org/stackframe/-/stackframe-1.1.1.tgz",
@@ -11461,6 +13662,33 @@
       "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM=",
       "dev": true
     },
+    "string-length": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/string-length/-/string-length-2.0.0.tgz",
+      "integrity": "sha1-1A27aGo6zpYMHP/KVivyxF+DY+0=",
+      "dev": true,
+      "requires": {
+        "astral-regex": "^1.0.0",
+        "strip-ansi": "^4.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "string-width": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
@@ -11624,6 +13852,12 @@
         "util.promisify": "~1.0.0"
       }
     },
+    "symbol-tree": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
+      "integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==",
+      "dev": true
+    },
     "table": {
       "version": "5.4.6",
       "resolved": "https://registry.npmjs.org/table/-/table-5.4.6.tgz",
@@ -11736,6 +13970,69 @@
         }
       }
     },
+    "test-exclude": {
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-5.2.3.tgz",
+      "integrity": "sha512-M+oxtseCFO3EDtAaGH7iiej3CBkzXqFMbzqYAACdzKui4eZA+pq3tZEwChvOdNfa7xxy8BfbmgJSIr43cC/+2g==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.1.3",
+        "minimatch": "^3.0.4",
+        "read-pkg-up": "^4.0.0",
+        "require-main-filename": "^2.0.0"
+      },
+      "dependencies": {
+        "load-json-file": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+          "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "parse-json": "^4.0.0",
+            "pify": "^3.0.0",
+            "strip-bom": "^3.0.0"
+          }
+        },
+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "requires": {
+            "error-ex": "^1.3.1",
+            "json-parse-better-errors": "^1.0.1"
+          }
+        },
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
+        },
+        "read-pkg": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+          "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
+          "dev": true,
+          "requires": {
+            "load-json-file": "^4.0.0",
+            "normalize-package-data": "^2.3.2",
+            "path-type": "^3.0.0"
+          }
+        },
+        "read-pkg-up": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-4.0.0.tgz",
+          "integrity": "sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==",
+          "dev": true,
+          "requires": {
+            "find-up": "^3.0.0",
+            "read-pkg": "^3.0.0"
+          }
+        }
+      }
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -11771,6 +14068,12 @@
         "neo-async": "^2.6.0"
       }
     },
+    "throat": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/throat/-/throat-4.1.0.tgz",
+      "integrity": "sha1-iQN8vJLFarGJJua6TLsgDhVnKmo=",
+      "dev": true
+    },
     "throttle-debounce": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/throttle-debounce/-/throttle-debounce-1.1.0.tgz",
@@ -11822,6 +14125,12 @@
         "os-tmpdir": "~1.0.2"
       }
     },
+    "tmpl": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.4.tgz",
+      "integrity": "sha1-I2QN17QtAEM5ERQIIOXPRA5SHdE=",
+      "dev": true
+    },
     "to-arraybuffer": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz",
@@ -11897,6 +14206,15 @@
         "punycode": "^2.1.1"
       }
     },
+    "tr46": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
+      "integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
+      "dev": true,
+      "requires": {
+        "punycode": "^2.1.0"
+      }
+    },
     "trim-newlines": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
@@ -11918,12 +14236,67 @@
       "integrity": "sha512-c3zayb8/kWWpycWYg87P71E1S1ZL6b6IJxfb5fvsUgsf0S2MVGaDhDXXjDMpdCpfWXqptc+4mXwmiy1ypXqRAA==",
       "dev": true
     },
+    "ts-jest": {
+      "version": "24.3.0",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-24.3.0.tgz",
+      "integrity": "sha512-Hb94C/+QRIgjVZlJyiWwouYUF+siNJHJHknyspaOcZ+OQAIdFG/UrdQVXw/0B8Z3No34xkUXZJpOTy9alOWdVQ==",
+      "dev": true,
+      "requires": {
+        "bs-logger": "0.x",
+        "buffer-from": "1.x",
+        "fast-json-stable-stringify": "2.x",
+        "json5": "2.x",
+        "lodash.memoize": "4.x",
+        "make-error": "1.x",
+        "mkdirp": "0.x",
+        "resolve": "1.x",
+        "semver": "^5.5",
+        "yargs-parser": "10.x"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        },
+        "yargs-parser": {
+          "version": "10.1.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+          "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^4.1.0"
+          }
+        }
+      }
+    },
     "ts-pnp": {
       "version": "1.1.6",
       "resolved": "https://registry.npmjs.org/ts-pnp/-/ts-pnp-1.1.6.tgz",
       "integrity": "sha512-CrG5GqAAzMT7144Cl+UIFP7mz/iIhiy+xQ6GGcnjTezhALT02uPMRw7tgDSESgB5MsfKt55+GPWw4ir1kVtMIQ==",
       "dev": true
     },
+    "tsconfig": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/tsconfig/-/tsconfig-7.0.0.tgz",
+      "integrity": "sha512-vZXmzPrL+EmC4T/4rVlT2jNVMWCi/O4DIiSj3UHg1OE5kCKbk4mfrXc6dZksLgRM/TZlKnousKH9bbTazUWRRw==",
+      "dev": true,
+      "requires": {
+        "@types/strip-bom": "^3.0.0",
+        "@types/strip-json-comments": "0.0.30",
+        "strip-bom": "^3.0.0",
+        "strip-json-comments": "^2.0.0"
+      },
+      "dependencies": {
+        "strip-json-comments": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
+          "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
+          "dev": true
+        }
+      }
+    },
     "tslib": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
@@ -12474,6 +14847,24 @@
         }
       }
     },
+    "vue-jest": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/vue-jest/-/vue-jest-3.0.5.tgz",
+      "integrity": "sha512-xWDxde91pDqYBGDlODENZ3ezPgw+IQFoVDtf+5Awlg466w3KvMSqWzs8PxcTeTr+wmAHi0j+a+Lm3R7aUJa1jA==",
+      "dev": true,
+      "requires": {
+        "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
+        "chalk": "^2.1.0",
+        "extract-from-css": "^0.4.4",
+        "find-babel-config": "^1.1.0",
+        "js-beautify": "^1.6.14",
+        "node-cache": "^4.1.1",
+        "object-assign": "^4.1.1",
+        "source-map": "^0.5.6",
+        "tsconfig": "^7.0.0",
+        "vue-template-es2015-compiler": "^1.6.0"
+      }
+    },
     "vue-loader": {
       "version": "15.9.1",
       "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-15.9.1.tgz",
@@ -12539,6 +14930,35 @@
       "resolved": "https://registry.npmjs.org/vuex/-/vuex-3.1.3.tgz",
       "integrity": "sha512-k8vZqNMSNMgKelVZAPYw5MNb2xWSmVgCKtYKAptvm9YtZiOXnRXFWu//Y9zQNORTrm3dNj1n/WaZZI26tIX6Mw=="
     },
+    "w3c-hr-time": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",
+      "integrity": "sha512-z8P5DvDNjKDoFIHK7q8r8lackT6l+jo/Ye3HOle7l9nICP9lf1Ci25fy9vHd0JOWewkIFzXIEig3TdKT7JQ5fQ==",
+      "dev": true,
+      "requires": {
+        "browser-process-hrtime": "^1.0.0"
+      }
+    },
+    "w3c-xmlserializer": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-1.1.2.tgz",
+      "integrity": "sha512-p10l/ayESzrBMYWRID6xbuCKh2Fp77+sA0doRuGn4tTIMrrZVeqfpKjXHY+oDh3K4nLdPgNwMTVP6Vp4pvqbNg==",
+      "dev": true,
+      "requires": {
+        "domexception": "^1.0.1",
+        "webidl-conversions": "^4.0.2",
+        "xml-name-validator": "^3.0.0"
+      }
+    },
+    "walker": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/walker/-/walker-1.0.7.tgz",
+      "integrity": "sha1-L3+bj9ENZ3JisYqITijRlhjgKPs=",
+      "dev": true,
+      "requires": {
+        "makeerror": "1.0.x"
+      }
+    },
     "watchpack": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.6.0.tgz",
@@ -12568,6 +14988,12 @@
         "defaults": "^1.0.3"
       }
     },
+    "webidl-conversions": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
+      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==",
+      "dev": true
+    },
     "webpack": {
       "version": "4.42.0",
       "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.42.0.tgz",
@@ -12910,6 +15336,32 @@
       "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
       "dev": true
     },
+    "whatwg-encoding": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz",
+      "integrity": "sha512-b5lim54JOPN9HtzvK9HFXvBma/rnfFeqsic0hSpjtDbVxR3dJKLc+KB4V6GgiGOvl7CY/KNh8rxSo9DKQrnUEw==",
+      "dev": true,
+      "requires": {
+        "iconv-lite": "0.4.24"
+      }
+    },
+    "whatwg-mimetype": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz",
+      "integrity": "sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g==",
+      "dev": true
+    },
+    "whatwg-url": {
+      "version": "6.5.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-6.5.0.tgz",
+      "integrity": "sha512-rhRZRqx/TLJQWUpQ6bmrt2UV4f0HCQ463yQuONJqC6fO2VoEb1pTYddbe59SkYq87aoM5A3bdhMZiUiVws+fzQ==",
+      "dev": true,
+      "requires": {
+        "lodash.sortby": "^4.7.0",
+        "tr46": "^1.0.1",
+        "webidl-conversions": "^4.0.2"
+      }
+    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
@@ -13019,6 +15471,17 @@
         "mkdirp": "^0.5.1"
       }
     },
+    "write-file-atomic": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.4.1.tgz",
+      "integrity": "sha512-TGHFeZEZMnv+gBFRfjAcxL5bPHrsGKtnb4qsFAws7/vlh+QfwAaySIw4AXP9ZskTTh5GWu3FLuJhsWVdiJPGvg==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
+      }
+    },
     "ws": {
       "version": "6.2.1",
       "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
@@ -13028,6 +15491,18 @@
         "async-limiter": "~1.0.0"
       }
     },
+    "xml-name-validator": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz",
+      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
+      "dev": true
+    },
+    "xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
+      "dev": true
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index 2ad3911..22a5d3b 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,15 @@
 {
   "name": "anhqv-stats",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "scripts": {
     "serve": "vue-cli-service serve",
-    "start": "node server.js",
     "build": "vue-cli-service build",
+    "test:unit": "vue-cli-service test:unit",
     "lint": "vue-cli-service lint",
+    "heroku-postbuild": "npm run build",
     "i18n:report": "vue-cli-service i18n:report --src \"./src/**/*.?(js|vue)\" --locales \"./src/locales/**/*.json\"",
-    "heroku-postbuild": "npm run build"
+    "start": "node server.js"
   },
   "dependencies": {
     "axios": "^0.19.2",
@@ -24,7 +25,9 @@
     "@kazupon/vue-i18n-loader": "^0.3.0",
     "@vue/cli-plugin-babel": "^4.2.0",
     "@vue/cli-plugin-eslint": "^4.2.0",
+    "@vue/cli-plugin-unit-jest": "^4.2.3",
     "@vue/cli-service": "^4.2.0",
+    "@vue/test-utils": "1.0.0-beta.31",
     "babel-eslint": "^10.0.3",
     "eslint": "^6.7.2",
     "eslint-config-airbnb-base": "^14.1.0",
diff --git a/public/images/characters/trabajador_mudanza_1.jpg b/public/images/characters/trabajador_mudanza_1.jpg
new file mode 100644
index 0000000..c2846d5
Binary files /dev/null and b/public/images/characters/trabajador_mudanza_1.jpg differ
diff --git a/public/images/characters/trabajador_mudanza_2.jpg b/public/images/characters/trabajador_mudanza_2.jpg
new file mode 100644
index 0000000..d771ce7
Binary files /dev/null and b/public/images/characters/trabajador_mudanza_2.jpg differ
diff --git a/src/App.vue b/src/App.vue
index 2c46ff8..5da884d 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -2,17 +2,16 @@
   <div id="app">
     <el-container id="layout">
       <Menu/>
-
       <el-container id="content">
-        <el-header id="header">
-          <img src="./assets/banner.gif">
+        <el-header>
+          <Header/>
         </el-header>
 
         <el-main id="main">
           <router-view></router-view>
         </el-main>
-        <el-footer id="footer">
-          Juan Manuel López Pazos
+        <el-footer>
+          <Footer/>
         </el-footer>
       </el-container>
     </el-container>
@@ -22,11 +21,15 @@
 <script>
 
 import Menu from './components/Menu.vue';
+import Header from './components/Header.vue';
+import Footer from './components/Footer.vue';
 
 export default {
   name: 'App',
   components: {
     Menu,
+    Header,
+    Footer,
   },
 };
 </script>
@@ -43,26 +46,17 @@ body{
       #content {
         border-left: 1px solid #e6e6e6;
 
-        #header{
+        .el-header{
           width: 100%;
-          height: 200px !important;
-          text-align: center;
           padding: 0;
-
-          img {
-            height: 100%;
-            max-width: 100%;
-          }
         }
 
         #main {
           padding: 50px;
         }
 
-        #footer{
-          border-top: 1px solid #e6e6e6;
-          text-align: center;
-          padding: 20px;
+        .el-footer{
+          padding: 0;
         }
       }
     }
diff --git a/src/components/Footer.vue b/src/components/Footer.vue
new file mode 100644
index 0000000..4aad705
--- /dev/null
+++ b/src/components/Footer.vue
@@ -0,0 +1,36 @@
+<template>
+  <div id="footer">
+    {{copyrightText}} <a href="https://www.juanmanuellopezpazos.es" target="_blank">{{authorText}}</a>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'Footer',
+  data() {
+    return {
+      copyrightText: 'Copyright ©2020',
+      authorText: '👨‍💻 Juan Manuel López Pazos',
+    };
+  },
+};
+</script>
+
+<style lang="scss" scoped>
+#footer{
+  border-top: 1px solid $color-border-gray;
+  text-align: center;
+
+  line-height: 59px;
+  margin: 0;
+
+  a {
+    text-decoration: none;
+    color: $color-text-black;
+
+    &:hover{
+      color: $color-text-blue;
+    }
+  }
+}
+</style>
diff --git a/src/components/Header.vue b/src/components/Header.vue
new file mode 100644
index 0000000..f8a7ba6
--- /dev/null
+++ b/src/components/Header.vue
@@ -0,0 +1,31 @@
+<template>
+  <div id="header">
+    <h1>{{title}}</h1>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'Header',
+  computed: {
+    title() {
+      return this.$route.meta.title && this.$route.meta.title({
+        route: this.$route,
+      }).toUpperCase();
+    },
+  },
+};
+</script>
+
+<style lang="scss" scoped>
+#header{
+  height: 100%;
+  border-bottom: 1px solid $color-border-gray;
+
+  h1 {
+    margin: 0;
+    line-height: 60px;
+    padding: 0 20px;
+  }
+}
+</style>
diff --git a/src/components/Menu.vue b/src/components/Menu.vue
index f5195fe..5830db2 100644
--- a/src/components/Menu.vue
+++ b/src/components/Menu.vue
@@ -1,5 +1,8 @@
 <template>
   <el-aside id="aside-menu">
+    <div id="logo">
+      <img src="../assets/banner.gif">
+    </div>
     <el-menu :default-openeds="defaultOpeneds" :collapse="isCollapsed">
       <el-menu-item index="1">
         <router-link
@@ -57,11 +60,11 @@ export default {
     return {
       isCollapsed: false,
       defaultOpeneds: ['3'],
+      charactersItemText: this.$t('MENU.CHARACTERS.TEXT'),
+      homeItemText: this.$t('MENU.HOME.TEXT'),
     };
   },
   created() {
-    this.charactersItemText = this.$t('MENU.CHARACTERS.TEXT');
-    this.homeItemText = this.$t('MENU.HOME.TEXT');
     window.addEventListener('resize', this.handleResize);
     this.handleResize();
   },
@@ -89,6 +92,12 @@ export default {
     width: 250px !important;
   }
 
+  #logo {
+    img {
+      width: 100%;
+    }
+  }
+
   ul {
     border-right: 0;
     -moz-user-select: none;
@@ -99,25 +108,21 @@ export default {
         padding: 0 !important;
 
         > a {
-          color: #303133;
+          color: $color-text-black;
           display: block;
           text-decoration: none;
           padding: 0 20px;
 
           &.router-link-exact-active, &:focus{
-            color: #409EFF;
+            color: $color-text-blue;
 
             i {
-              color: #409EFF;
+              color: $color-text-blue;
             }
           }
         }
       }
 
-      ::v-deep div.el-submenu__title {
-        //padding: 0 !important;
-      }
-
       &.el-submenu {
         ul {
           li {
diff --git a/src/locales/es.json b/src/locales/es.json
index 91ef745..48caa87 100644
--- a/src/locales/es.json
+++ b/src/locales/es.json
@@ -6,5 +6,18 @@
     "HOME": {
       "TEXT": "Inicio"
     }
+  },
+  "VIEWS": {
+    "HOME": {
+      "TITLE": "Inicio"
+    },
+    "CHARACTERS": {
+      "TITLE": "Personajes"
+    },
+    "SEASONS": {
+      "DETAIL": {
+        "TITLE": "Temporada {number}"
+      }
+    }
   }
 }
diff --git a/src/main.js b/src/main.js
index 75de16d..6209eb9 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,5 +1,4 @@
 import Vue from 'vue';
-import VueRouter from 'vue-router';
 import ElementUI from 'element-ui';
 import App from './App.vue';
 import store from './store';
@@ -10,8 +9,6 @@ import i18n from './i18n';
 
 import router from './router';
 
-Vue.use(VueRouter);
-
 Vue.use(ElementUI);
 Vue.use(VueAnhqvClient, {
   endpoint: process.env.VUE_APP_API_URL,
diff --git a/src/router/index.js b/src/router/index.js
index 1c3a1f1..4fdd32a 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -1,6 +1,8 @@
 import Vue from 'vue';
 import Router from 'vue-router';
 
+import i18n from '../i18n';
+
 Vue.use(Router);
 
 export default new Router({
@@ -11,14 +13,23 @@ export default new Router({
       path: '/',
       component: () => import('@/views/Home'),
       children: [],
+      meta: {
+        title: () => i18n.t('VIEWS.HOME.TITLE'),
+      },
     }, {
       path: '/characters',
       component: () => import('@/views/Characters'),
       children: [],
+      meta: {
+        title: () => i18n.t('VIEWS.CHARACTERS.TITLE'),
+      },
     }, {
       path: '/seasons/:season_number',
       component: () => import('@/views/Season'),
       children: [],
+      meta: {
+        title: ({ route }) => i18n.t('VIEWS.SEASONS.DETAIL.TITLE', { number: route.params.season_number }),
+      },
     },
   ],
 });
diff --git a/src/styles/_variables.scss b/src/styles/_variables.scss
new file mode 100644
index 0000000..2b52526
--- /dev/null
+++ b/src/styles/_variables.scss
@@ -0,0 +1,4 @@
+$color-text-black: #303133;
+$color-text-blue: #409EFF;
+$color-text-white: #fff;
+$color-border-gray: #e6e6e6;
diff --git a/src/views/Characters.vue b/src/views/Characters.vue
index 9e31deb..5b98a7e 100644
--- a/src/views/Characters.vue
+++ b/src/views/Characters.vue
@@ -3,7 +3,11 @@
     <p>
       Aquí puedes ver el detalle de todos y cada uno de los personajes que aparecen en la serie.
     </p>
-    <el-row id="characters-list" :gutter="50">
+    <el-row
+      id="characters-list"
+      :gutter="gutter"
+      v-loading.fullscreen.lock="loading"
+      element-loading-background="rgba(0, 0, 0, 0.8)">
       <el-col
         class="character-col"
         :xs="24"
@@ -21,7 +25,7 @@
           <div
             class="character-card-info"
             style="padding: 14px;">
-            <span><b>{{character.nickname}}</b></span>
+            <span><b>{{character.shortname}}</b></span>
             <div class="bottom clearfix">
               <el-button
                 type="text"
@@ -44,8 +48,17 @@ import { mapState } from 'vuex';
 export default {
   name: 'Characters',
   components: {},
+  data() {
+    return {
+      loading: true,
+      gutter: 50,
+    };
+  },
   created() {
-    this.$store.dispatch('characters/getAll');
+    this.$store.dispatch('characters/getAll')
+      .then(() => {
+        this.loading = false;
+      });
   },
   computed: {
     ...mapState('characters', {
diff --git a/tests/unit/components/footer.spec.js b/tests/unit/components/footer.spec.js
new file mode 100644
index 0000000..3a423ec
--- /dev/null
+++ b/tests/unit/components/footer.spec.js
@@ -0,0 +1,20 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import VueRouter from 'vue-router';
+import ElementUI from 'element-ui';
+import Footer from '../../../src/components/Footer.vue';
+
+const localVue = createLocalVue();
+localVue.use(ElementUI);
+
+const router = new VueRouter();
+
+describe('Footer.vue', () => {
+  it('check initial data', () => {
+    const wrapper = shallowMount(Footer, {
+      localVue,
+      router,
+    });
+
+    expect(wrapper.text()).toBe('Copyright ©2020 👨‍💻 Juan Manuel López Pazos');
+  });
+});
diff --git a/tests/unit/components/header.spec.js b/tests/unit/components/header.spec.js
new file mode 100644
index 0000000..ae34fa6
--- /dev/null
+++ b/tests/unit/components/header.spec.js
@@ -0,0 +1,27 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import VueRouter from 'vue-router';
+import ElementUI from 'element-ui';
+import Header from '../../../src/components/Header.vue';
+
+const localVue = createLocalVue();
+localVue.use(ElementUI);
+
+const router = new VueRouter();
+
+describe('Header.vue', () => {
+  it('check initial data', () => {
+    const wrapper = shallowMount(Header, {
+      localVue,
+      router,
+      mocks: {
+        $t: () => {},
+        $route: {
+          meta: {
+            title: () => 'dummy',
+          },
+        },
+      },
+    });
+    expect(wrapper.vm.title).toBe('DUMMY');
+  });
+});
diff --git a/tests/unit/components/menu.spec.js b/tests/unit/components/menu.spec.js
new file mode 100644
index 0000000..51d1afa
--- /dev/null
+++ b/tests/unit/components/menu.spec.js
@@ -0,0 +1,71 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import VueRouter from 'vue-router';
+import ElementUI from 'element-ui';
+import Menu from '../../../src/components/Menu.vue';
+
+const localVue = createLocalVue();
+localVue.use(ElementUI);
+
+const router = new VueRouter();
+
+describe('Menu.vue', () => {
+  it('check initial data', () => {
+    const wrapper = shallowMount(Menu, {
+      localVue,
+      router,
+      mocks: {
+        $t: () => {},
+        $route: {
+          meta: {
+            title: () => 'dummy',
+          },
+        },
+      },
+      stubs: ['router-link', 'router-view'],
+    });
+    expect(JSON.stringify(wrapper.vm.defaultOpeneds)).toBe(JSON.stringify(['3']));
+    expect(wrapper.vm.isCollapsed).toBe(false);
+  });
+
+  describe('handleResize', () => {
+    it('isCollapsed must be true', () => {
+      const wrapper = shallowMount(Menu, {
+        localVue,
+        mocks: {
+          $t: () => {},
+          $route: {
+            meta: {
+              title: () => 'dummy',
+            },
+          },
+        },
+        stubs: ['router-link', 'router-view'],
+      });
+
+      window.innerWidth = 767;
+      wrapper.vm.handleResize();
+      expect(wrapper.vm.isCollapsed).toBe(true);
+    });
+  });
+
+  it('check beforeDestroy function is called', () => {
+    const wrapper = shallowMount(Menu, {
+      localVue,
+      mocks: {
+        $t: () => {},
+        $route: {
+          meta: {
+            title: () => 'dummy',
+          },
+        },
+      },
+      stubs: ['router-link', 'router-view'],
+    });
+
+    window.removeEventListener = jest.fn();
+
+    wrapper.destroy();
+
+    expect(window.removeEventListener).toHaveBeenCalled();
+  });
+});
diff --git a/vue.config.js b/vue.config.js
index 2bd914e..70a70ef 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -10,4 +10,11 @@ module.exports = {
       enableInSFC: true,
     },
   },
+  css: {
+    loaderOptions: {
+      scss: {
+        prependData: '@import "~@/styles/variables.scss";',
+      },
+    },
+  },
 };