cfg-test/dist/core/api.mjs.map

In-source testing using Node.js Test Runner

{
  "version": 3,
  "sources": ["../../src/core/api.ts"],
  "sourcesContent": ["import { existsSync, readFileSync } from \"node:fs\";\nimport { createRequire, register as load } from \"node:module\";\nimport { resolve } from \"node:path\";\nimport { sep } from \"node:path\";\nimport process from \"node:process\";\nimport { pathToFileURL } from \"node:url\";\nimport type { Config } from \"./config\";\nimport { testEnv } from \"./define\";\nimport * as log from \"./log\";\n\nconst ARGV = [\"/path/to/node\", \"/path/to/file\"];\nconst fileIndex = ARGV.indexOf(\"/path/to/file\");\n\nconst cwd = process.cwd();\nconst cwdUrl = pathToFileURL(\n  cwd.endsWith(sep) ? sep : (cwd + sep /*not file*/),\n);\nconst require = createRequire(cwdUrl);\nconst parentUrl = cwdUrl.toString();\n\nexport interface RegisterOptions {\n  readonly argv?: readonly string[] | undefined;\n  readonly execArgv?: readonly string[] | undefined;\n}\n\nexport function register(options: RegisterOptions | undefined = {}) {\n  const argv = options.argv || process.argv;\n\n  if (!(fileIndex in argv)) {\n    return;\n  }\n\n  const file = resolve(argv[fileIndex]!);\n  const execArgv = options.execArgv || process.execArgv;\n  const nodeOptions = `,${\n    process.env[\"NODE_OPTIONS\"]\n      ? execArgv.concat(process.env[\"NODE_OPTIONS\"].split(/\\s/g))\n      : execArgv\n  },`;\n  // ... --import cfg-test ...\n  const isEsmMode = /,--import,cfg-test[,/]/.test(nodeOptions);\n  const isWatchMode = /,--watch,/.test(nodeOptions);\n  const isDTsFile = file.endsWith(\".d.ts\");\n  const isTypeScript = /\\.[cm]?tsx?$/i.test(file);\n\n  log.debug(() => [\n    `esm mode -> ${isEsmMode}`,\n    `watch mode -> ${isWatchMode}`,\n    `typescript file -> ${isTypeScript}`,\n    `declare file -> ${isDTsFile}`,\n    `argv -> ${argv.map(a => JSON.stringify(a)).join(\" \")}`,\n    `execArgv -> ${execArgv.map(a => JSON.stringify(a)).join(\" \")}`,\n    `cwd -> ${JSON.stringify(cwd)}`,\n    `parentUrl -> ${JSON.stringify(parentUrl)}`,\n    `target file -> ${JSON.stringify(file)}`,\n  ]);\n\n  if (\n    isEsmMode\n    // @ts-expect-error\n    && true !== true\n  ) {\n    log.error(() => [\"Cannot import `cfg-test` in CommonJS\"]);\n    process.exit(1);\n  }\n\n  // env\n\n  const env = {\n    ...testEnv,\n    CFG_TEST_CFG: process.env.CFG_TEST_CFG ?? `${[\n      \".config/cfg-test\",\n      \".config/cfg-test/config\",\n      \"config/cfg-test\",\n      \"config/cfg-test/config\",\n      \"cfg-test\",\n    ]}`,\n    CFG_TEST_FILE: file,\n  };\n\n  if (isEsmMode) {\n    Object.assign(env, {\n      CFG_TEST_URL: pathToFileURL(file),\n    });\n  }\n\n  Object.assign(env, {\n    CFG_TEST_WATCH: `${isWatchMode}`,\n  });\n\n  const originalEnv = { ...process.env };\n\n  log.debug(() =>\n    Object.entries(env)\n      .filter(([k, v]) => [undefined, v].includes(originalEnv[k]))\n      .map(([k, v]) => `Added env.${k}=${JSON.stringify(v)} by cfg-test.`)\n  );\n  log.warn(() =>\n    Object.entries(env)\n      .filter(([k, v]) => [undefined, v].every(v => v !== originalEnv[k]))\n      .map(([k, v]) => `Updated env.${k}=${JSON.stringify(v)} by cfg-test.`)\n  );\n\n  Object.assign(process.env, env);\n\n  // utils\n\n  const cfgTest: CfgTest = new Proxy(require(\"node:test\"), {\n    get(target, p, receiver) {\n      switch (p) {\n        case \"url\":\n          return process.env.CFG_TEST_URL;\n\n        case \"file\":\n          return process.env.CFG_TEST_FILE;\n\n        case \"watch\":\n          return process.env.CFG_TEST_WATCH === \"true\";\n\n        case \"assert\":\n          return require(\"node:assert/strict\");\n\n        default:\n          return Reflect.get(target, p, receiver);\n      }\n    },\n  });\n\n  global.cfgTest = cfgTest;\n\n  // config\n\n  let cfg: Config | undefined;\n\n  for (const id of process.env.CFG_TEST_CFG!.split(\",\")) {\n    const cfgPath = id.endsWith(\".json\") ? id : `${id}.json`;\n\n    if (existsSync(cfgPath)) {\n      cfg = JSON.parse(readFileSync(cfgPath, \"utf8\"));\n      break;\n    }\n  }\n\n  if (cfg && cfg.env) {\n    for (const [key, value] of Object.entries(cfg.env)) {\n      if (typeof value !== \"string\") {\n        continue;\n      }\n\n      if (process.env[key] === undefined) {\n        log.debug(() => [`Added env.${key} by config file.`]);\n      } else {\n        log.warn(() => [`Updated env.${key} by config file.`]);\n      }\n\n      process.env[key] = value;\n    }\n  }\n\n  if (cfg && cfg.globals) {\n    for (const [key, value] of Object.entries(cfg.globals)) {\n      if (key in global) {\n        log.warn(() => [`Updated global.${key} by config file.`]);\n      } else {\n        log.debug(() => [`Added global.${key} by config file.`]);\n        // @ts-expect-error\n        global[key] = value;\n      }\n    }\n  }\n\n  if (cfg && cfg.import) {\n    if (!Array.isArray(cfg.import)) {\n      cfg.import = [cfg.import];\n    }\n\n    for (const id of cfg.import) {\n      log.debug(() => [`Imported module ${id} by config file.`]);\n      load(id, parentUrl);\n    }\n  }\n\n  if (cfg && cfg.require) {\n    if (!Array.isArray(cfg.require)) {\n      cfg.require = [cfg.require];\n    }\n\n    for (const id of cfg.require) {\n      log.debug(() => [`Required module ${id} by config file.`]);\n      require(id);\n    }\n  }\n\n  const ctx = {\n    log,\n    argv,\n    file,\n    execArgv,\n    isEsmMode,\n    parentUrl,\n    isWatchMode,\n    isTypeScript,\n    import(id: string): void {\n      try {\n        log.debug(() => [`Register ESM module ${id}.`]);\n        load(id, parentUrl);\n        log.debug(() => [`Registered ESM module ${id}.`]);\n      } catch (e) {\n        log.error(() => [`Cannot register ESM module ${id}.`]);\n        throw e;\n      }\n    },\n    require(id: string, onLoad: (mod: any) => void): void {\n      try {\n        log.debug(() => [`Register CJS module ${id}`]);\n        const mod = require(id);\n        log.debug(() => [`Loaded CJS module ${id}`]);\n        onLoad(mod);\n        log.debug(() => [`Registered CJS module ${id}`]);\n      } catch (e) {\n        log.error(() => [`Cannot register CJS module ${id}.`]);\n        throw e;\n      }\n    },\n  };\n\n  if (isDTsFile) {\n    if (ctx.isEsmMode) {\n      ctx.import(\"cfg-test/dts-loader\");\n    } else {\n      // CommonJS implementation of `cfg-test/dts-loader`\n      require(\"node:module\")._extensions[\".ts\"] = () => \"\";\n      ctx.log.debug(() => [\"Registered CJS module cfg-test/dts-loader.\"]);\n    }\n\n    return;\n  }\n\n  return ctx;\n}\n"],
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