test: component tests with jsdom and Testing Library

First tests cover the library search debounce (fails on the old looping
version), the Pile of Shame states and the backlog save body. jsdom is
enabled per test file, so the plain util tests stay in the node environment.

package-lock.json

@@ -27,8 +27,11 @@
         "zod": "^3.25.76"
       },
       "devDependencies": {
+        "@testing-library/dom": "^10.4.2",
+        "@testing-library/react": "^16.3.3",
         "@vitejs/plugin-react": "^6.1.1",
         "autoprefixer": "~10.6.1",
+        "jsdom": "^30.1.1",
         "postcss": "~8.5.28",
         "tailwindcss": "~4.3.3",
         "tw-animate-css": "^1.4.0",
@@ -36,6 +39,64 @@
         "vitest": "^5.0.1"
       }
     },
+    "node_modules/@asamuzakjp/css-color": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-7.0.1.tgz",
+      "integrity": "sha512-C9duntabagkBZ1LebM7FKmphR4Q1pBclLxVbZETQV0akkFjV0ooFxo8FlvAQyKj9F6l8rEnmidgcTlpyxFYizg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/css-calc": "^3.4.0",
+        "@csstools/css-color-parser": "^4.2.3",
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.1",
+        "lru-cache": "^11.5.3"
+      },
+      "engines": {
+        "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/@asamuzakjp/dom-selector/-/dom-selector-9.2.1.tgz",
+      "integrity": "sha512-NT4s3yZLjovPpliRpTvdsdzyPjqRqiCZj9MxnarBihbaY5MbAG7DWAJcrLlhmC7xKTNCXsTELcqB8YsqpLnUFQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "bidi-js": "^1.1.0",
+        "css-tree": "^3.2.1",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.5.3"
+      },
+      "engines": {
+        "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.7.tgz",
+      "integrity": "sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-validator-identifier": "^7.29.7",
+        "js-tokens": "^4.0.0",
+        "picocolors": "^1.1.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-validator-identifier": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.29.7.tgz",
+      "integrity": "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@babel/runtime": {
       "version": "7.29.7",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.29.7.tgz",
@@ -45,6 +106,159 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@bramus/specificity": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/@bramus/specificity/-/specificity-2.4.2.tgz",
+      "integrity": "sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "css-tree": "^3.0.0"
+      },
+      "bin": {
+        "specificity": "bin/cli.js"
+      }
+    },
+    "node_modules/@csstools/color-helpers": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-6.1.1.tgz",
+      "integrity": "sha512-gLNsunvwf3mCi5u5o46/Z/JcJMnhbHSaZ69rkgPzNM3J4s8hWwpPUQB6/tt0EDFyCiWzxANlx+2LJwpYj4zS1w==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=20.19.0"
+      }
+    },
+    "node_modules/@csstools/css-calc": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-calc/-/css-calc-3.4.0.tgz",
+      "integrity": "sha512-XQKj5B7QiZcHiegCOCAzcAOJdhGgWOHbbu62h5e5mkHnn8lWcfiJhllkqWmxu5zWR9jucPHuo1iTB56P033hcg==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-color-parser": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/@csstools/css-color-parser/-/css-color-parser-4.2.3.tgz",
+      "integrity": "sha512-y4LpL+lmpuyKDiEFq2PnZUVFdAjsoB/qQJod79yLNokXyW7jewi+/WJ69EfItj8A2unWtxXnGjw6LYXgXu5ZjA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/color-helpers": "^6.1.1",
+        "@csstools/css-calc": "^3.4.0"
+      },
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-parser-algorithms": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-4.0.0.tgz",
+      "integrity": "sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-syntax-patches-for-csstree": {
+      "version": "1.1.14",
+      "resolved": "https://registry.npmjs.org/@csstools/css-syntax-patches-for-csstree/-/css-syntax-patches-for-csstree-1.1.14.tgz",
+      "integrity": "sha512-HpbVXyrofRXpHpgkNIjU/3EWR4WJvOkO3emNK/L6X/mTJU7bGUI3AkkpoTNXznQLp0KRjLHELTGeKI5dIkI9JQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "peerDependencies": {
+        "css-tree": "^3.2.1"
+      },
+      "peerDependenciesMeta": {
+        "css-tree": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@csstools/css-tokenizer": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-4.0.1.tgz",
+      "integrity": "sha512-bPlN9S9O1A0euCpEWE4qnvB5YDuyYVsUTrxSgmAM1Is0j4tICHoVyOVAXfWMP/kS9ZrjvyIXWV2PmomiAXXqOw==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      }
+    },
     "node_modules/@emnapi/core": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.10.0.tgz",
@@ -76,6 +290,24 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@exodus/bytes": {
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/@exodus/bytes/-/bytes-1.16.0.tgz",
+      "integrity": "sha512-IcpW84uEn3N7ETtNZMlxKhfl6Pec8rUNGOTBtWbK1FKhJxIFAptZyVrvVRVBimAJxJCgc3PxepxkdWWG4DVzfA==",
+      "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
+        }
+      }
+    },
     "node_modules/@floating-ui/core": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.8.0.tgz",
@@ -2203,6 +2435,54 @@
         "vite": "^5.2.0 || ^6 || ^7 || ^8"
       }
     },
+    "node_modules/@testing-library/dom": {
+      "version": "10.4.2",
+      "resolved": "https://registry.npmjs.org/@testing-library/dom/-/dom-10.4.2.tgz",
+      "integrity": "sha512-yzr2S9HyAIdhz2/6qHgbs665Q7PKVcDF05vsOlHPxG1mo36gKVesdYVeDLnXgfjJ03CrKRk08knc6+E/9m8v2Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/code-frame": "^7.10.4",
+        "@babel/runtime": "^7.12.5",
+        "@types/aria-query": "^5.0.1",
+        "aria-query": "5.3.0",
+        "dom-accessibility-api": "^0.5.9",
+        "lz-string": "^1.5.0",
+        "picocolors": "1.1.1",
+        "pretty-format": "^27.0.2"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@testing-library/react": {
+      "version": "16.3.3",
+      "resolved": "https://registry.npmjs.org/@testing-library/react/-/react-16.3.3.tgz",
+      "integrity": "sha512-Uo193NgQbPMz6lrrhtRQQFcMC6Re/ELLFbbuVL30WDlZxlpZf9/lMHTAVxPRLw1q1iu9OJmR1c2BLiENRstdBg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.12.5"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@testing-library/dom": "^10.0.0",
+        "@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"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@tybys/wasm-util": {
       "version": "0.10.1",
       "resolved": "https://registry.npmjs.org/@tybys/wasm-util/-/wasm-util-0.10.1.tgz",
@@ -2213,6 +2493,13 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@types/aria-query": {
+      "version": "5.0.4",
+      "resolved": "https://registry.npmjs.org/@types/aria-query/-/aria-query-5.0.4.tgz",
+      "integrity": "sha512-rfT93uj5s0PRL7EzccGMs3brplhcrghnDoV26NqKhCAS1hVo+WdNsPvE/yb6ilfr5hi2MEk6d5EWJTKdxg8jVw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/chai": {
       "version": "5.2.3",
       "resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.2.3.tgz",
@@ -2316,6 +2603,29 @@
         "url": "https://opencollective.com/vitest"
       }
     },
+    "node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/ansi-styles": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
+      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
     "node_modules/aria-hidden": {
       "version": "1.2.6",
       "resolved": "https://registry.npmjs.org/aria-hidden/-/aria-hidden-1.2.6.tgz",
@@ -2328,6 +2638,16 @@
         "node": ">=10"
       }
     },
+    "node_modules/aria-query": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-5.3.0.tgz",
+      "integrity": "sha512-b0P0sZPKtyu8HkeRAfCq0IfURZK+SuwMjY1UXGBU27wpAiTwQAIlq56IbIO+ytk/JjS1fMR14ee5WBBfKi5J6A==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "dequal": "^2.0.3"
+      }
+    },
     "node_modules/assertion-error": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
@@ -2388,6 +2708,16 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/bidi-js": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/bidi-js/-/bidi-js-1.1.0.tgz",
+      "integrity": "sha512-fX1Onk0tdVPC7obPWB5EbJ1z7NVhLq4m2xZLq2YXBkxzMXIGRpNMU88n0EPgWseKl12J7zXs7qrDxPK4sRs2fg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "require-from-string": "^2.0.2"
+      }
+    },
     "node_modules/browserslist": {
       "version": "4.29.0",
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.29.0.tgz",
@@ -2496,6 +2826,89 @@
         "node-fetch": "^2.7.0"
       }
     },
+    "node_modules/css-tree": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-3.2.1.tgz",
+      "integrity": "sha512-X7sjQzceUhu1u7Y/ylrRZFU2FS6LRiFVp6rKLPg23y3x3c3DOKAwuXGDp+PAGjh6CSnCjYeAul8pcT8bAl+lSA==",
+      "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"
+      }
+    },
+    "node_modules/data-urls": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-7.0.0.tgz",
+      "integrity": "sha512-23XHcCF+coGYevirZceTVD7NdJOqVn+49IHyxgszm+JIiHLoB2TkmPtsYkNWT1pvRSGkc35L6NHs0yHkN2SumA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-mimetype": "^5.0.0",
+        "whatwg-url": "^16.0.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
+    "node_modules/data-urls/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/data-urls/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/data-urls/node_modules/whatwg-url": {
+      "version": "16.0.1",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-16.0.1.tgz",
+      "integrity": "sha512-1to4zXBxmXHV3IiSSEInrreIlu02vUOvrhxJJH5vcxYTBDAx51cqZiKdyTxlecdKNSjj8EcxGBxNf6Vg+945gw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.11.0",
+        "tr46": "^6.0.0",
+        "webidl-conversions": "^8.0.1"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
+    "node_modules/decimal.js": {
+      "version": "10.6.0",
+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.6.0.tgz",
+      "integrity": "sha512-YpgQiITW3JXGntzdUmyUR1V812Hn8T1YVXhCu+wO3OpS4eU9l4YdD3qjyiKdV6mvV29zapkMeD390UVEf2lkUg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/dequal": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/dequal/-/dequal-2.0.3.tgz",
+      "integrity": "sha512-0je+qPKHEMohvfRTCEo3CrPG6cAzAYgmzKyxRiYSSDkS6eGJdyVJm7WaYA5ECaAD9wLB2T4EEeymA5aFVcYXCA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/detect-libc": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
@@ -2511,6 +2924,13 @@
       "integrity": "sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==",
       "license": "MIT"
     },
+    "node_modules/dom-accessibility-api": {
+      "version": "0.5.16",
+      "resolved": "https://registry.npmjs.org/dom-accessibility-api/-/dom-accessibility-api-0.5.16.tgz",
+      "integrity": "sha512-X7BJ2yElsnOJ30pZF4uIIDfBEVgF4XEBxL9Bxhy6dnrm5hkzqmsWHGTiHqRiITNhMyFLyAiWndIJP7Z1NTteDg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.5.438",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.438.tgz",
@@ -2531,6 +2951,19 @@
         "node": ">=10.13.0"
       }
     },
+    "node_modules/entities": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-8.1.0.tgz",
+      "integrity": "sha512-kxL7msIffSuh9aaFAMD7rxAIuTRMAHMeBtgHW2yUdWw732ZNh4MehkF2gdjvtdmikkaIP9bFDDJOPlsvm7avrA==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "node_modules/es-module-lexer": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/es-module-lexer/-/es-module-lexer-2.3.2.tgz",
@@ -2628,6 +3061,19 @@
       "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
       "license": "ISC"
     },
+    "node_modules/html-encoding-sniffer": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-7.0.0.tgz",
+      "integrity": "sha512-UikN5yr7xsCDAq87Or5or0PAlD3HJJOKVzM05az588WnpDJ4Ux7a2A53Qi6gofGg2/EtvF/H4hCi/TXfCW4Y6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.15.1"
+      },
+      "engines": {
+        "node": "^22.13.0 || >=24.0.0"
+      }
+    },
     "node_modules/html-parse-stringify": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/html-parse-stringify/-/html-parse-stringify-4.0.1.tgz",
@@ -2674,6 +3120,13 @@
         "cross-fetch": "4.1.0"
       }
     },
+    "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/jiti": {
       "version": "2.7.0",
       "resolved": "https://registry.npmjs.org/jiti/-/jiti-2.7.0.tgz",
@@ -2683,6 +3136,91 @@
         "jiti": "lib/jiti-cli.mjs"
       }
     },
+    "node_modules/js-tokens": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/jsdom": {
+      "version": "30.1.1",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-30.1.1.tgz",
+      "integrity": "sha512-FahmoPK5vbPc+jxV1iErMHmAZypCZ942NHF4+qqaWAuvaKKTBZxawnmAtrbGWLU7MtlxfqIP0qw6aSI+aWGtLg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@asamuzakjp/css-color": "^7.0.0",
+        "@asamuzakjp/dom-selector": "^9.2.1",
+        "@bramus/specificity": "^2.4.2",
+        "@csstools/css-syntax-patches-for-csstree": "^1.1.13",
+        "@exodus/bytes": "^1.15.1",
+        "css-tree": "^3.2.1",
+        "data-urls": "^7.0.0",
+        "decimal.js": "^10.6.0",
+        "html-encoding-sniffer": "^7.0.0",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.5.2",
+        "parse5": "^8.0.1",
+        "saxes": "^6.0.0",
+        "tough-cookie": "^6.0.2",
+        "undici": "^8.10.2",
+        "w3c-xmlserializer": "^6.0.0",
+        "webidl-conversions": "^8.0.1",
+        "whatwg-mimetype": "^5.0.0",
+        "whatwg-url": "^17.1.1",
+        "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/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/jsdom/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/jsdom/node_modules/whatwg-url": {
+      "version": "17.1.2",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-17.1.2.tgz",
+      "integrity": "sha512-TEZA+Zqxin7Jjsm2cjRohCmen5awh+hT6Zi3VZdqZlNRk7zvOI/9WpBFg/DWlA56bWnzwm6DuB8NS0EsxQH9uQ==",
+      "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/lightningcss": {
       "version": "1.32.0",
       "resolved": "https://registry.npmjs.org/lightningcss/-/lightningcss-1.32.0.tgz",
@@ -2932,6 +3470,16 @@
         "url": "https://opencollective.com/parcel"
       }
     },
+    "node_modules/lru-cache": {
+      "version": "11.5.3",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.3.tgz",
+      "integrity": "sha512-U4N8FgzmWxc8k1VH8Kr6lQg18U7Fjvby6wXHVRX/ZZ7IwWbRMgrRbP0Wrb5q5NVinryp4SQampHKdvtecItxUg==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
     "node_modules/lucide-react": {
       "version": "1.48.0",
       "resolved": "https://registry.npmjs.org/lucide-react/-/lucide-react-1.48.0.tgz",
@@ -2941,6 +3489,16 @@
         "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
+    "node_modules/lz-string": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.5.0.tgz",
+      "integrity": "sha512-h5bgJWpxJNswbU7qCrV0tIKQCaS3blPDrqKWx+QxzuzL1zGUzij9XCWLrSLsJPu5t+eWA/ycetzYAO5IOMcWAQ==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "lz-string": "bin/bin.js"
+      }
+    },
     "node_modules/magic-string": {
       "version": "0.30.21",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
@@ -2950,6 +3508,13 @@
         "@jridgewell/sourcemap-codec": "^1.5.5"
       }
     },
+    "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/nanoid": {
       "version": "3.3.19",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.19.tgz",
@@ -3012,6 +3577,19 @@
         "node": ">=12.20.0"
       }
     },
+    "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/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -3065,6 +3643,31 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/pretty-format": {
+      "version": "27.5.1",
+      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.5.1.tgz",
+      "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^5.0.1",
+        "ansi-styles": "^5.0.0",
+        "react-is": "^17.0.1"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/punycode": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
+      "integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/radix-ui": {
       "version": "1.6.7",
       "resolved": "https://registry.npmjs.org/radix-ui/-/radix-ui-1.6.7.tgz",
@@ -3206,6 +3809,13 @@
         }
       }
     },
+    "node_modules/react-is": {
+      "version": "17.0.2",
+      "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
+      "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/react-remove-scroll": {
       "version": "2.7.2",
       "resolved": "https://registry.npmjs.org/react-remove-scroll/-/react-remove-scroll-2.7.2.tgz",
@@ -3313,6 +3923,16 @@
         }
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/rolldown": {
       "version": "1.2.10",
       "resolved": "https://registry.npmjs.org/rolldown/-/rolldown-1.2.10.tgz",
@@ -3346,6 +3966,19 @@
         "@rolldown/binding-win32-x64-msvc": "1.2.10"
       }
     },
+    "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": "0.28.0",
       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.28.0.tgz",
@@ -3469,6 +4102,39 @@
         "url": "https://github.com/sponsors/SuperchupuDev"
       }
     },
+    "node_modules/tldts": {
+      "version": "7.4.15",
+      "resolved": "https://registry.npmjs.org/tldts/-/tldts-7.4.15.tgz",
+      "integrity": "sha512-SJVBeHOxDbNoq14CvpAoA2mLEWdbldGK8nR+yumpjY5nrlZxOflcA7p1Qj1gbTGmbu9DY9qLj/bENSWhBzjxRQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tldts-core": "^7.4.15"
+      },
+      "bin": {
+        "tldts": "bin/cli.js"
+      }
+    },
+    "node_modules/tldts-core": {
+      "version": "7.4.15",
+      "resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-7.4.15.tgz",
+      "integrity": "sha512-ERuv0p98XgSzmlSLJr8vDNxX+uATGInlN97V3R+JpYWaSqn5IG3ewWgCwczk4bkOpgth/o8Nt5FOi4B4w0n/1A==",
+      "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": "0.0.3",
       "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
@@ -3491,6 +4157,16 @@
         "url": "https://github.com/sponsors/Wombosvideo"
       }
     },
+    "node_modules/undici": {
+      "version": "8.11.2",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-8.11.2.tgz",
+      "integrity": "sha512-u4UB2/IrKdU6lFxumHmmo1a3fCQO5tzQllRorfoRS63txhrB7xTpSn1PftwC4qEHkOaqP95fCWW4lJzwErwzhQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=22.19.0"
+      }
+    },
     "node_modules/update-browserslist-db": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.3.3.tgz",
@@ -3993,12 +4669,35 @@
         "@jridgewell/sourcemap-codec": "^1.6.0"
       }
     },
+    "node_modules/w3c-xmlserializer": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-6.0.0.tgz",
+      "integrity": "sha512-4Nsy8K5Tr6SPDH9jhKJOHf7ChDrc1zufZTVSF7x72hwuEXBqxqk9G6cK+K2NRUtB3iELRJqjXb4JPDMBjMTl2Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
+      }
+    },
     "node_modules/webidl-conversions": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
       "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
       "license": "BSD-2-Clause"
     },
+    "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": "5.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
@@ -4026,6 +4725,23 @@
         "node": ">=8"
       }
     },
+    "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/zod": {
       "version": "3.25.76",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",

package.json

@@ -29,8 +29,11 @@
     "zod": "^3.25.76"
   },
   "devDependencies": {
+    "@testing-library/dom": "^10.4.2",
+    "@testing-library/react": "^16.3.3",
     "@vitejs/plugin-react": "^6.1.1",
     "autoprefixer": "~10.6.1",
+    "jsdom": "^30.1.1",
     "postcss": "~8.5.28",
     "tailwindcss": "~4.3.3",
     "tw-animate-css": "^1.4.0",

src/components/BacklogCard.test.jsx

@@ -0,0 +1,48 @@
+// @vitest-environment jsdom
+import {afterEach, beforeEach, describe, expect, it, vi} from 'vitest';
+import {cleanup, fireEvent, render, screen, waitFor} from '@testing-library/react';
+import {MemoryRouter} from 'react-router-dom';
+import BacklogCard from './BacklogCard.jsx';
+
+vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+vi.mock('sonner', () => ({toast: {success: vi.fn(), error: vi.fn()}}));
+
+const game = {appid: 220, status: 'PLAYING', rating: 4, notes: 'old', priority: null};
+const saveButton = () => screen.getByRole('button', {name: 'BACKLOG.SAVE'});
+
+describe('BacklogCard', () => {
+    beforeEach(() => {
+        localStorage.setItem('tbp_jwt', 'token');
+        globalThis.fetch = vi.fn(async (url, init) => ({ok: true, status: 200, json: async () => JSON.parse(init.body)}));
+    });
+
+    afterEach(() => {
+        cleanup();
+        localStorage.clear();
+    });
+
+    it('enables saving only after a change', () => {
+        render(<MemoryRouter><BacklogCard game={game}/></MemoryRouter>);
+        expect(saveButton().disabled).toBe(true);
+
+        fireEvent.click(screen.getByRole('button', {name: 'BACKLOG.RATING_STARS:5'}));
+
+        expect(saveButton().disabled).toBe(false);
+    });
+
+    it('clears the rating on a click on the current star and sends blank notes as null', async () => {
+        const onSaved = vi.fn();
+        render(<MemoryRouter><BacklogCard game={game} onSaved={onSaved}/></MemoryRouter>);
+
+        fireEvent.click(screen.getByRole('button', {name: 'BACKLOG.RATING_STARS:4'}));
+        fireEvent.change(screen.getByRole('textbox'), {target: {value: '   '}});
+        fireEvent.click(saveButton());
+
+        await waitFor(() => expect(onSaved).toHaveBeenCalled());
+        const [url, init] = fetch.mock.calls[0];
+        expect(url).toMatch(/\/api\/library\/games\/220\/backlog$/);
+        expect(init.method).toBe('PUT');
+        expect(JSON.parse(init.body)).toEqual({status: 'PLAYING', rating: null, notes: null, priority: null});
+        expect(saveButton().disabled).toBe(true);
+    });
+});

src/components/PileOfShameCard.test.jsx

@@ -0,0 +1,50 @@
+// @vitest-environment jsdom
+import {afterEach, describe, expect, it, vi} from 'vitest';
+import {cleanup, fireEvent, render, screen} from '@testing-library/react';
+import {MemoryRouter} from 'react-router-dom';
+import PileOfShameCard from './PileOfShameCard.jsx';
+
+vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+
+const summary = (backlog, extra = {}) => ({
+    total: backlog + 3,
+    neverPlayed: 1,
+    byStatus: {BACKLOG: backlog, PLAYING: 3, FINISHED: 0, COMPLETED: 0, DROPPED: 0},
+    suggestion: backlog > 0 ? {appid: 220, name: 'Half-Life 2'} : null,
+    ...extra,
+});
+
+const renderCard = (props) => render(<MemoryRouter><PileOfShameCard onShuffle={() => {}} {...props}/></MemoryRouter>);
+
+describe('PileOfShameCard', () => {
+    afterEach(cleanup);
+
+    it('shows the first-sync text instead of empty numbers while the first sync runs', () => {
+        renderCard({summary: {...summary(0), total: 0, byStatus: {BACKLOG: 0}}, syncing: true});
+
+        expect(screen.getByText('LIBRARY.SYNCING_FIRST_TIME')).toBeTruthy();
+        expect(screen.queryByText('DASHBOARD.BACKLOG_EMPTY')).toBeNull();
+    });
+
+    it('hides the shuffle button when there is nothing else to pick', () => {
+        renderCard({summary: summary(1)});
+
+        expect(screen.getByText('Half-Life 2')).toBeTruthy();
+        expect(screen.queryByRole('button', {name: /DASHBOARD.OTHER_SUGGESTION/})).toBeNull();
+    });
+
+    it('shuffles when the backlog has more than one game', () => {
+        const onShuffle = vi.fn();
+        renderCard({summary: summary(2), onShuffle});
+
+        fireEvent.click(screen.getByRole('button', {name: /DASHBOARD.OTHER_SUGGESTION/}));
+
+        expect(onShuffle).toHaveBeenCalledOnce();
+    });
+
+    it('says the backlog is empty when there is no suggestion', () => {
+        renderCard({summary: summary(0)});
+
+        expect(screen.getByText('DASHBOARD.BACKLOG_EMPTY')).toBeTruthy();
+    });
+});

src/pages/GameLibrary.test.jsx

@@ -0,0 +1,95 @@
+// @vitest-environment jsdom
+import {afterEach, beforeEach, describe, expect, it, vi} from 'vitest';
+import {act, cleanup, fireEvent, render, screen, waitFor} from '@testing-library/react';
+import {MemoryRouter, Route, Routes, useLocation, useNavigate} from 'react-router-dom';
+import GameLibrary from './GameLibrary.jsx';
+
+vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+vi.mock('../hooks/useLibrarySync.js', () => ({default: () => ({status: 'OK', lastSyncedAt: null, isRunning: false})}));
+vi.mock('../hooks/useForceSync.js', () => ({default: () => ({trigger: vi.fn(), busy: false})}));
+
+const DEBOUNCE_WAIT_MS = 700;
+const page = {content: [{appid: 220, name: 'Half-Life 2', playtimeMinutes: 0, status: 'BACKLOG'}], page: 0, size: 20, totalElements: 1, totalPages: 1};
+
+const wait = (ms) => act(() => new Promise((resolve) => setTimeout(resolve, ms)));
+
+// MemoryRouter, not createMemoryRouter: it pushes like the BrowserRouter in main.jsx, also for an unchanged URL.
+function renderLibrary(initialEntry = '/library') {
+    const lib = {navigations: 0, location: null, navigate: null};
+    function Spy() {
+        const location = useLocation();
+        lib.navigate = useNavigate();
+        if (lib.location?.key !== location.key) {
+            lib.navigations++;
+            lib.location = location;
+        }
+        return null;
+    }
+    render(
+        <MemoryRouter initialEntries={[initialEntry]}>
+            <Routes><Route path="/library" element={<><GameLibrary/><Spy/></>}/></Routes>
+        </MemoryRouter>,
+    );
+    return {
+        navigations: () => lib.navigations,
+        params: () => new URLSearchParams(lib.location.search),
+        back: () => lib.navigate(-1),
+    };
+}
+
+const typeInto = (value) => fireEvent.change(screen.getByRole('searchbox'), {target: {value}});
+
+describe('GameLibrary search', () => {
+    beforeEach(() => {
+        localStorage.setItem('tbp_jwt', 'token');
+        globalThis.fetch = vi.fn(async () => ({ok: true, status: 200, json: async () => page}));
+    });
+
+    afterEach(() => {
+        cleanup();
+        localStorage.clear();
+    });
+
+    it('writes the trimmed search to the URL after the delay and resets the page', async () => {
+        const lib = renderLibrary('/library?page=3');
+
+        typeInto('half');
+
+        await waitFor(() => expect(lib.params().get('q')).toBe('half'));
+        expect(lib.params().get('page')).toBe('0');
+        await waitFor(() => expect(fetch.mock.calls.at(-1)[0]).toMatch(/[?&]q=half(&|$)/));
+    });
+
+    it('does not keep navigating and keeps a trailing space while the user types', async () => {
+        const lib = renderLibrary();
+        typeInto('half');
+        await waitFor(() => expect(lib.params().get('q')).toBe('half'));
+        const navigationsBefore = lib.navigations();
+
+        typeInto('half ');
+        await wait(DEBOUNCE_WAIT_MS);
+
+        expect(lib.navigations()).toBe(navigationsBefore);
+        expect(screen.getByRole('searchbox').value).toBe('half ');
+    });
+
+    it('keeps a status picked during the delay', async () => {
+        const lib = renderLibrary();
+
+        typeInto('half');
+        fireEvent.click(screen.getByRole('button', {name: 'BACKLOG.STATUS.DROPPED'}));
+
+        await waitFor(() => expect(lib.params().get('q')).toBe('half'));
+        expect(lib.params().get('status')).toBe('DROPPED');
+    });
+
+    it('shows the URL search again after back navigation', async () => {
+        const lib = renderLibrary();
+        typeInto('half');
+        await waitFor(() => expect(lib.params().get('q')).toBe('half'));
+
+        act(() => lib.back());
+
+        await waitFor(() => expect(screen.getByRole('searchbox').value).toBe(''));
+    });
+});

src/test/i18n-mock.js

@@ -0,0 +1,6 @@
+// Module mock for react-i18next: t() returns the key (plus ":<count>" for plurals), so tests do not depend on the texts.
+// Use in a test file: vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+const t = (key, options) => (options?.count === undefined ? key : `${key}:${options.count}`);
+const i18n = {language: 'de'};
+
+export const useTranslation = () => ({t, i18n});