test(frontend): component testing infra (jsdom + testing-library + vitest projects)

frontend/package-lock.json

@@ -27,6 +27,9 @@
       "devDependencies": {
         "@eslint/js": "^10.0.1",
         "@tailwindcss/vite": "^4.3.3",
+        "@testing-library/jest-dom": "^7.0.1",
+        "@testing-library/react": "^16.3.3",
+        "@testing-library/user-event": "^14.6.7",
         "@types/react": "^19.2.18",
         "@types/react-dom": "^19.2.7",
         "@typescript/native": "npm:typescript@^7.0.2",
@@ -35,6 +38,7 @@
         "eslint-config-prettier": "^10.1.8",
         "eslint-plugin-jsx-a11y": "^6.10.2",
         "eslint-plugin-react-hooks": "^7.1.1",
+        "jsdom": "^30.0.1",
         "prettier": "^3.9.6",
         "tailwindcss": "^4.3.3",
         "typescript": "npm:@typescript/typescript6@^6.0.2",
@@ -44,6 +48,13 @@
         "vitest": "^5.0.0"
       }
     },
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+      "resolved": "https://registry.npmjs.org/@adobe/css-tools/-/css-tools-4.5.0.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
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       "version": "0.3.7",
       "resolved": "https://registry.npmjs.org/@apideck/better-ajv-errors/-/better-ajv-errors-0.3.7.tgz",
@@ -61,6 +72,59 @@
         "ajv": ">=8"
       }
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+      "resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-6.0.7.tgz",
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+      "license": "MIT",
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+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0",
+        "lru-cache": "^11.5.2"
+      },
+      "engines": {
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+    "node_modules/@asamuzakjp/css-color/node_modules/lru-cache": {
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+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.2.tgz",
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+      "license": "BlueOak-1.0.0",
+      "engines": {
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+      "resolved": "https://registry.npmjs.org/@asamuzakjp/dom-selector/-/dom-selector-8.3.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+        "css-tree": "^3.2.1",
+        "is-potential-custom-element-name": "^1.0.1",
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+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.2.tgz",
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+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
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@@ -1603,6 +1667,19 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@bramus/specificity": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/@bramus/specificity/-/specificity-2.4.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "css-tree": "^3.0.0"
+      },
+      "bin": {
+        "specificity": "bin/cli.js"
+      }
+    },
     "node_modules/@cacheable/memory": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/@cacheable/memory/-/memory-2.2.0.tgz",
@@ -1627,6 +1704,146 @@
         "keyv": "^5.6.0"
       }
     },
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+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-6.1.1.tgz",
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+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
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+      }
+    },
+    "node_modules/@csstools/css-calc": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-calc/-/css-calc-3.4.0.tgz",
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+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
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+        "@csstools/css-tokenizer": "^4.0.0"
+      }
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+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/@csstools/css-color-parser/-/css-color-parser-4.2.3.tgz",
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+      "license": "MIT",
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+      "license": "MIT-0",
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+      "peerDependenciesMeta": {
+        "css-tree": {
+          "optional": true
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+    "node_modules/@csstools/css-tokenizer": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-4.0.0.tgz",
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+      "dev": true,
+      "funding": [
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+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
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+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
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     "node_modules/@eslint-community/eslint-utils": {
       "version": "4.10.1",
       "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.10.1.tgz",
@@ -1755,6 +1972,24 @@
         "node": "^20.19.0 || ^22.13.0 || >=24"
       }
     },
+    "node_modules/@exodus/bytes": {
+      "version": "1.15.1",
+      "resolved": "https://registry.npmjs.org/@exodus/bytes/-/bytes-1.15.1.tgz",
+      "integrity": "sha512-S6mL0yNB/Abt9Ei4tq8gDhcczc4S3+vQ4ra7vxnAf+YHC02srtqxKKZghx2Dq6p0e66THKwR6r8N6P95wEty7Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      },
+      "peerDependencies": {
+        "@noble/hashes": "^1.8.0 || ^2.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@noble/hashes": {
+          "optional": true
+        }
+      }
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     "node_modules/@floating-ui/core": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.8.0.tgz",
@@ -4764,6 +4999,77 @@
         "react": "^18 || ^19"
       }
     },
+    "node_modules/@testing-library/jest-dom": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/@testing-library/jest-dom/-/jest-dom-7.0.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@adobe/css-tools": "^4.4.0",
+        "aria-query": "^5.0.0",
+        "css.escape": "^1.5.1",
+        "dom-accessibility-api": "^0.6.3",
+        "picocolors": "^1.1.1",
+        "redent": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=22",
+        "npm": ">=6",
+        "yarn": ">=1"
+      },
+      "peerDependencies": {
+        "@testing-library/dom": ">=10 <11",
+        "vitest": ">= 0.32"
+      },
+      "peerDependenciesMeta": {
+        "vitest": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@testing-library/react": {
+      "version": "16.3.3",
+      "resolved": "https://registry.npmjs.org/@testing-library/react/-/react-16.3.3.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.12.5"
+      },
+      "engines": {
+        "node": ">=18"
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+      "peerDependencies": {
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+        "@types/react": "^18.0.0 || ^19.0.0",
+        "@types/react-dom": "^18.0.0 || ^19.0.0",
+        "react": "^18.0.0 || ^19.0.0",
+        "react-dom": "^18.0.0 || ^19.0.0"
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+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
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+        }
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12",
+        "npm": ">=6"
+      },
+      "peerDependencies": {
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@@ -5892,6 +6198,16 @@
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+      "resolved": "https://registry.npmjs.org/bidi-js/-/bidi-js-1.1.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+      }
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     "node_modules/brace-expansion": {
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@@ -6168,6 +6484,27 @@
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+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-3.2.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mdn-data": "2.27.1",
+        "source-map-js": "^1.2.1"
+      },
+      "engines": {
+        "node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
+      }
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+    "node_modules/css.escape": {
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+      "resolved": "https://registry.npmjs.org/css.escape/-/css.escape-1.5.1.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
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@@ -6195,6 +6532,35 @@
       "dev": true,
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+      "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-7.0.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+        "whatwg-url": "^16.0.0"
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+        "tr46": "^6.0.0",
+        "webidl-conversions": "^8.0.1"
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@@ -6267,6 +6633,13 @@
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+      "license": "MIT"
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       "license": "MIT"
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+    "node_modules/dom-accessibility-api": {
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@@ -6404,6 +6784,19 @@
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     "node_modules/epubjs": {
       "version": "0.3.93",
       "resolved": "https://registry.npmjs.org/epubjs/-/epubjs-0.3.93.tgz",
@@ -7544,6 +7937,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/html-encoding-sniffer": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-6.0.0.tgz",
+      "integrity": "sha512-CV9TW3Y3f8/wT0BRFc1/KAVQ3TUHiXmaAb6VW9vtiMFf7SLoMd1PdAc4W3KFOFETBJUb90KatHqlsZMWV+R9Gg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.6.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "node_modules/idb": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/idb/-/idb-7.1.1.tgz",
@@ -7577,6 +7983,16 @@
         "node": ">=0.8.19"
       }
     },
+    "node_modules/indent-string": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/indent-string/-/indent-string-4.0.0.tgz",
+      "integrity": "sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
@@ -7868,6 +8284,13 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/is-potential-custom-element-name": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-potential-custom-element-name/-/is-potential-custom-element-name-1.0.1.tgz",
+      "integrity": "sha512-bCYeRA2rVibKZd+s2625gGnGF/t7DSqDs4dP7CrLA1m7jKWz6pps0LpYLJN8Q64HtmPKJ1hrN3nzPNKFEKOUiQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/is-regex": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.2.1.tgz",
@@ -8100,6 +8523,57 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/jsdom": {
+      "version": "30.0.1",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-30.0.1.tgz",
+      "integrity": "sha512-52v7mUVUfNQVYYqE1lcdaymWL0njO7lTLUog6ZvW2U5KsbiLk/GnZlVJ+qx0xfNJZ6Gn+KSpPNE52vurbxZwrA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@asamuzakjp/css-color": "^6.0.5",
+        "@asamuzakjp/dom-selector": "^8.3.0",
+        "@bramus/specificity": "^2.4.2",
+        "@csstools/css-syntax-patches-for-csstree": "^1.1.7",
+        "@exodus/bytes": "^1.15.1",
+        "css-tree": "^3.2.1",
+        "data-urls": "^7.0.0",
+        "decimal.js": "^10.6.0",
+        "html-encoding-sniffer": "^6.0.0",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.5.2",
+        "parse5": "^8.0.1",
+        "saxes": "^6.0.0",
+        "symbol-tree": "^3.2.4",
+        "tough-cookie": "^6.0.2",
+        "undici": "^8.9.0",
+        "w3c-xmlserializer": "^5.0.0",
+        "webidl-conversions": "^8.0.1",
+        "whatwg-mimetype": "^5.0.0",
+        "whatwg-url": "^17.1.0",
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
+      },
+      "peerDependencies": {
+        "canvas": "^3.2.3"
+      },
+      "peerDependenciesMeta": {
+        "canvas": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/jsdom/node_modules/lru-cache": {
+      "version": "11.5.2",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.2.tgz",
+      "integrity": "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
     "node_modules/jsesc": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-3.1.0.tgz",
@@ -8619,6 +9093,23 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/mdn-data": {
+      "version": "2.27.1",
+      "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.27.1.tgz",
+      "integrity": "sha512-9Yubnt3e8A0OKwxYSXyhLymGW4sCufcLG6VdiDdUGVkPhpqLxlvP5vl1983gQjJl3tqbrM731mjaZaP68AgosQ==",
+      "dev": true,
+      "license": "CC0-1.0"
+    },
+    "node_modules/min-indent": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/min-indent/-/min-indent-1.0.1.tgz",
+      "integrity": "sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/minimatch": {
       "version": "10.2.6",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.2.6.tgz",
@@ -8872,6 +9363,19 @@
       "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
       "license": "(MIT AND Zlib)"
     },
+    "node_modules/parse5": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-8.0.1.tgz",
+      "integrity": "sha512-z1e/HMG90obSGeidlli3hj7cbocou0/wa5HacvI3ASx34PecNjNQeaHNo5WIZpWofN9kgkqV1q5YvXe3F0FoPw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "entities": "^8.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
     "node_modules/path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
@@ -9298,6 +9802,20 @@
         "util-deprecate": "~1.0.1"
       }
     },
+    "node_modules/redent": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/redent/-/redent-3.0.0.tgz",
+      "integrity": "sha512-6tDA8g98We0zd0GvVeMT9arEOnTw9qM03L9cJXaCjrip1OO764RDBLBfrB4cwzNGDj5OA5ioymC9GkizgWJDUg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "indent-string": "^4.0.0",
+        "strip-indent": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/reflect.getprototypeof": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@@ -9587,6 +10105,19 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/saxes": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/saxes/-/saxes-6.0.0.tgz",
+      "integrity": "sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "xmlchars": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=v12.22.7"
+      }
+    },
     "node_modules/scheduler": {
       "version": "0.27.0",
       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.27.0.tgz",
@@ -10009,6 +10540,19 @@
         "node": ">=10"
       }
     },
+    "node_modules/strip-indent": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-3.0.0.tgz",
+      "integrity": "sha512-laJTa3Jb+VQpaC6DseHhF7dXVqHTfJPCRDaEbid/drOhgitgYku/letMUqOXFoWV0zIIUbjpdH2t+tYj4bQMRQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "min-indent": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/supports-preserve-symlinks-flag": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
@@ -10022,6 +10566,13 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/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,
+      "license": "MIT"
+    },
     "node_modules/tailwind-merge": {
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/tailwind-merge/-/tailwind-merge-3.6.0.tgz",
@@ -10138,6 +10689,52 @@
         "url": "https://github.com/sponsors/SuperchupuDev"
       }
     },
+    "node_modules/tldts": {
+      "version": "7.4.13",
+      "resolved": "https://registry.npmjs.org/tldts/-/tldts-7.4.13.tgz",
+      "integrity": "sha512-iHtaIWWIbMDkCeJdTBzZFGgbluE5J+oHlb2g7+oAz1S1gpuVpabRZdQyd471Vl8UUkcz2vXSL8xZH2kyCe8tfA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tldts-core": "^7.4.13"
+      },
+      "bin": {
+        "tldts": "bin/cli.js"
+      }
+    },
+    "node_modules/tldts-core": {
+      "version": "7.4.13",
+      "resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-7.4.13.tgz",
+      "integrity": "sha512-mbYsrih5FRtGxs3Usvl/PqwJsNpp+jsmrdFviiK02teHDG0/HebBG/pqCylje3kzgXYzuLoHJF/0mz9W53t8Xg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/tough-cookie": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.2.tgz",
+      "integrity": "sha512-exgYmnmL/sJpR3upZfXG5PoatXQii55xAiXGXzY+sROLZ/Y+SLcp9PgJNI9Vz37HpQ74WvDcLT8eqm+kV3FzrA==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "tldts": "^7.0.5"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
+    "node_modules/tr46": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-6.0.0.tgz",
+      "integrity": "sha512-bLVMLPtstlZ4iMQHpFHTR7GAGj2jxi8Dg0s2h2MafAE4uSWF98FC/3MomU51iQAMf8/qDUbKWf5GxuvvVcXEhw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "punycode": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/ts-api-utils": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.5.0.tgz",
@@ -10333,6 +10930,16 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/undici": {
+      "version": "8.10.2",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-8.10.2.tgz",
+      "integrity": "sha512-/y4/bH9YNU5hi9NIrpOuvGXFcxrj3CMrV+/AYpowAYTpHn8gX/XPFjNy766FPoYY0miQhdW977JFWKGNhBdwyQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=22.19.0"
+      }
+    },
     "node_modules/unicode-canonical-property-names-ecmascript": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-2.0.1.tgz",
@@ -10964,6 +11571,54 @@
         "@jridgewell/sourcemap-codec": "^1.5.5"
       }
     },
+    "node_modules/w3c-xmlserializer": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
+      "integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/webidl-conversions": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-8.0.1.tgz",
+      "integrity": "sha512-BMhLD/Sw+GbJC21C/UgyaZX41nPt8bUTg+jWyDeg7e7YN4xOM05YPSIXceACnXVtqyEw/LMClUQMtMZ+PGGpqQ==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/whatwg-mimetype": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-5.0.0.tgz",
+      "integrity": "sha512-sXcNcHOC51uPGF0P/D4NVtrkjSU2fNsm9iog4ZvZJsL3rjoDAzXZhkm2MWt1y+PUdggKAYVoMAIYcs78wJ51Cw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/whatwg-url": {
+      "version": "17.1.1",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-17.1.1.tgz",
+      "integrity": "sha512-ohjk1mdUebJVadRt3bAhQhx8lSnISq+GDttK79LFl8EHQkAPvzwctoasC4hs8tBt6kLAncBWWyq1N52qEfKvDw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.15.1",
+        "tr46": "^6.0.0",
+        "webidl-conversions": "^8.0.1"
+      },
+      "engines": {
+        "node": "^22.14.0 || >=24.0.0"
+      }
+    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -11323,6 +11978,23 @@
         "workbox-core": "7.4.1"
       }
     },
+    "node_modules/xml-name-validator": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
+      "integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",

frontend/package.json

@@ -38,6 +38,9 @@
   "devDependencies": {
     "@eslint/js": "^10.0.1",
     "@tailwindcss/vite": "^4.3.3",
+    "@testing-library/jest-dom": "^7.0.1",
+    "@testing-library/react": "^16.3.3",
+    "@testing-library/user-event": "^14.6.7",
     "@types/react": "^19.2.18",
     "@types/react-dom": "^19.2.7",
     "@typescript/native": "npm:typescript@^7.0.2",
@@ -46,6 +49,7 @@
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-jsx-a11y": "^6.10.2",
     "eslint-plugin-react-hooks": "^7.1.1",
+    "jsdom": "^30.0.1",
     "prettier": "^3.9.6",
     "tailwindcss": "^4.3.3",
     "typescript": "npm:@typescript/typescript6@^6.0.2",

frontend/test/setup.ts

@@ -0,0 +1,21 @@
+import "@testing-library/jest-dom/vitest";
+import { cleanup } from "@testing-library/react";
+import { afterEach } from "vitest";
+
+afterEach(() => cleanup());
+
+// jsdom 缺口 polyfill（spec S2）：radix 原语在 jsdom 下的已知缺失，一次配好全体组件测试共用。
+
+class ResizeObserverStub {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+globalThis.ResizeObserver ??= ResizeObserverStub as unknown as typeof ResizeObserver;
+
+Element.prototype.scrollIntoView ??= function scrollIntoView() {};
+
+// radix 的焦点/拖拽逻辑会探测 pointer capture API，jsdom 未实现
+Element.prototype.hasPointerCapture ??= (() => false) as never;
+Element.prototype.setPointerCapture ??= (() => {}) as never;
+Element.prototype.releasePointerCapture ??= (() => {}) as never;

frontend/vitest.config.ts

@@ -2,5 +2,22 @@ import { defineConfig } from "vitest/config";
 
 export default defineConfig({
   resolve: { alias: { "@": new URL("./src", import.meta.url).pathname } },
-  test: { include: ["test/**/*.test.ts", "test/**/*.test.tsx"], passWithNoTests: true },
+  test: {
+    passWithNoTests: true,
+    projects: [
+      {
+        extends: true,
+        test: { name: "unit", include: ["test/**/*.test.ts"], environment: "node" },
+      },
+      {
+        extends: true,
+        test: {
+          name: "components",
+          include: ["src/**/*.test.tsx"],
+          environment: "jsdom",
+          setupFiles: ["test/setup.ts"],
+        },
+      },
+    ],
+  },
 });