test: migrate to vitest and colocate tests (#58)

Author: gnapse

.oxlintrc.jsonc

@@ -5,22 +5,4 @@
   "rules": {
     "react/react-in-jsx-scope": "off",
   },
-  "overrides": [
-    {
-      // These suites use assertion helpers and no-throw checks, which trip Jest's static
-      // expect detection without indicating a real test quality problem here.
-      "files": ["__test__/**/*.{ts,tsx}"],
-      "rules": {
-        "jest/expect-expect": "off",
-      },
-    },
-    {
-      // The parser fixture strings make dynamic test titles more readable than duplicated
-      // literal prefixes.
-      "files": ["__test__/parser.test.ts"],
-      "rules": {
-        "jest/valid-title": "off",
-      },
-    },
-  ],
 }

__test__/Interpolate.test.tsx

@@ -8,5 +8,5 @@
     "noEmit": true,
     "types": ["node", "react"]
   },
-  "files": ["package-types.cts"]
+  "files": ["./types.cts"]
 }

jest.config.cjs

@@ -8,5 +8,5 @@
     "noEmit": true,
     "types": ["node", "react"]
   },
-  "files": ["package-types.mts"]
+  "files": ["./types.mts"]
 }