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샘플

babel-plugin-istanbul 6.1.1

검증된 샘플 — npm babel-plugin-istanbul 6.1.1. node 22 · linux alpine/x64 · docker에서 contract를 실행해 통과했습니다: babel-plugin-istanbul default export is a Babel plugin…

sha256:1dca9522f2fbfd3a4eefeb8d6cbba570880c202234651872598c820470d6a069

이 네트워크가 제공하는 것은 하나입니다. 빌드되는 샘플. 샌드박스에서 돌리고 서명된 영수증을 보관합니다. 등급을 매기지 않고 무엇도 보증하지 않습니다 — 같은 코드가 당신 환경에서 빌드되는지는 측정한 적이 없습니다. 통과한 계약 영수증을 낸 서로 다른 서명 키의 수입니다. 하나면 작성자 혼자이고, 둘 이상이면 다른 사람도 빌드했다는 뜻입니다. 키는 스스로 만드는 것이고 뒤에 등록된 신원이 없으므로, 세는 것은 사람이 아니라 키입니다. MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

증거 기준
서명된 컨트랙트 통과
검증 영수증
1
빌드한 서명 키
1
선언된 환경 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

검증 실행 환경

환경 컨트랙트 단계 실행일
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

케이스

HOW
목표
verify pkg:npm/babel-plugin-istanbul@6.1.1
패키지
환경
node 22.23.2
생성일
2026-08-27T12:29:53Z

컨트랙트

  1. babel-plugin-istanbul default export is a Babel plugin function declaring Babel 7 compatibility
  2. Plugin visitor exposes Program enter and exit lifecycle handlers
  3. Program visitor initializes NYC configuration with default and custom options
  4. Program visitor respects include and exclude filter patterns to skip non-matching files
  5. Program visitor generates AST instrumentation and records coverage metrics on Program exit
  6. Program visitor invokes onCover callback with resolved file path and coverage metadata
  7. Program visitor supports custom coverageVariable configuration

파일

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

소스 아티팩트 내려받기 (tar.gz)

소스

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify pkg:npm/babel-plugin-istanbul@6.1.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/babel-plugin-istanbul@6.1.1
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:31d2b286da920d750f51bc00014ef81b1089e476493c3e0c9c3f2b094f96f522","constraints":{"executionContext":"node"},"contract":["babel-plugin-istanbul default export is a Babel plugin function declaring Babel 7 compatibility","Plugin visitor exposes Program enter and exit lifecycle handlers","Program visitor initializes NYC configuration with default and custom options","Program visitor respects include and exclude filter patterns to skip non-matching files","Program visitor generates AST instrumentation and records coverage metrics on Program exit","Program visitor invokes onCover callback with resolved file path and coverage metadata","Program visitor supports custom coverageVariable configuration"],"goal":"verify pkg:npm/babel-plugin-istanbul@6.1.1","kind":"HOW","packages":["pkg:npm/babel-plugin-istanbul@6.1.1"],"schemaVersion":1},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/babel-plugin-istanbul@6.1.1"],"schemaVersion":1,"subject":"pkg:npm/babel-plugin-istanbul@6.1.1","verifierAdapter":"node-typescript@1"}
package-lock.json
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        {
          "type": "opencollective",
          "url": "https://opencollective.com/browserslist"
        },
        {
          "type": "tidelift",
          "url": "https://tidelift.com/funding/github/npm/browserslist"
        },
        {
          "type": "github",
          "url": "https://github.com/sponsors/ai"
        }
      ],
      "license": "MIT",
      "dependencies": {
        "escalade": "^3.2.0",
        "picocolors": "^1.1.1"
      },
      "bin": {
        "update-browserslist-db": "cli.js"
      },
      "peerDependencies": {
        "browserslist": ">= 4.21.0"
      }
    },
    "node_modules/wrappy": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
      "license": "ISC"
    },
    "node_modules/yallist": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
      "license": "ISC"
    }
  }
}
package.json
{
  "name": "sample-babel-plugin-istanbul",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "babel-plugin-istanbul": "6.1.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/babel-plugin-istanbul@6.1.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/babel-plugin-istanbul@6.1.1"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
src/index.mjs
import babelPluginIstanbulModule from "babel-plugin-istanbul";

export const babelPluginIstanbul =
  typeof babelPluginIstanbulModule === "function"
    ? babelPluginIstanbulModule
    : babelPluginIstanbulModule.default || babelPluginIstanbulModule;

export function instantiatePlugin(api = {}, options = {}) {
  const normalizedApi = {
    assertVersion: (range) => {
      if (typeof api.assertVersion === "function") {
        api.assertVersion(range);
      }
    },
    types: api.types || createDefaultTypes(),
    ...api
  };
  return babelPluginIstanbul(normalizedApi, options);
}

export function createDefaultTypes() {
  return {
    valueToNode: (v) => ({ type: "ObjectExpression", value: v }),
    program: (body) => ({ type: "Program", body }),
    stringLiteral: (v) => ({ type: "StringLiteral", value: v }),
    numericLiteral: (v) => ({ type: "NumericLiteral", value: v }),
    identifier: (name) => ({ type: "Identifier", name }),
    booleanLiteral: (v) => ({ type: "BooleanLiteral", value: v }),
    nullLiteral: () => ({ type: "NullLiteral" }),
    callExpression: (callee, args) => ({ type: "CallExpression", callee, arguments: args }),
    expressionStatement: (expression) => ({ type: "ExpressionStatement", expression }),
    variableDeclaration: (kind, declarations) => ({ type: "VariableDeclaration", kind, declarations }),
    isStatement: () => false,
    isExpression: () => true
  };
}

export function createMockProgramPath(filename = "sample.js") {
  const body = [];
  const comments = [];
  const scope = {
    hasBinding: () => false,
    getBinding: () => null
  };

  const path = {
    node: {
      type: "Program",
      body,
      comments
    },
    scope,
    isProgram() {
      return true;
    },
    find(fn) {
      return fn(this) ? this : null;
    },
    traverse(visitor, state) {
      // traversal simulation
    },
    unshiftContainer(listKey, nodes) {
      const arr = Array.isArray(nodes) ? nodes : [nodes];
      this.node.body.unshift(...arr);
    }
  };

  return path;
}

export function createVisitorContext(filename, options = {}) {
  return {
    opts: {
      cwd: process.cwd(),
      ...options
    },
    file: {
      opts: {
        filename
      }
    }
  };
}

export function simulatePluginExecution(pluginInstance, context, path) {
  if (!pluginInstance?.visitor?.Program) {
    throw new Error("Invalid plugin instance: missing Program visitor");
  }

  pluginInstance.visitor.Program.enter.call(context, path);
  pluginInstance.visitor.Program.exit.call(context, path);

  return {
    instrumented: Boolean(context.__dv__),
    nycConfig: context.nycConfig,
    body: path.node.body
  };
}
test/contract.mjs
import assert from "node:assert/strict";
import babelPluginIstanbulModule from "babel-plugin-istanbul";
import {
  babelPluginIstanbul,
  instantiatePlugin,
  createDefaultTypes,
  createMockProgramPath,
  createVisitorContext,
  simulatePluginExecution
} from "../src/index.mjs";

const rawPlugin =
  typeof babelPluginIstanbulModule === "function"
    ? babelPluginIstanbulModule
    : babelPluginIstanbulModule.default || babelPluginIstanbulModule;

// Contract 1: babel-plugin-istanbul default export is a Babel plugin function declaring Babel 7 compatibility
{
  assert.equal(typeof babelPluginIstanbul, "function");
  assert.equal(typeof rawPlugin, "function");

  let assertedVersion = null;
  const mockApi = {
    assertVersion: (v) => {
      assertedVersion = v;
    },
    types: createDefaultTypes()
  };

  const instance = rawPlugin(mockApi, {});
  assert.equal(assertedVersion, 7);
  assert.ok(instance && typeof instance === "object");
  assert.ok(instance.visitor);
}

// Contract 2: Plugin visitor exposes Program enter and exit lifecycle handlers
{
  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };

  const instance = instantiatePlugin(mockApi, {});
  assert.ok(instance.visitor.Program);
  assert.equal(typeof instance.visitor.Program.enter, "function");
  assert.equal(typeof instance.visitor.Program.exit, "function");
}

// Contract 3: Program visitor initializes NYC configuration with default and custom options
{
  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };
  const instance = instantiatePlugin(mockApi, {});

  const customOptions = {
    cwd: process.cwd(),
    include: ["src/**/*.js"],
    exclude: ["**/*.spec.js"],
    extension: [".js", ".jsx"]
  };

  const context = createVisitorContext(process.cwd() + "/src/sample.js", customOptions);
  const path = createMockProgramPath("src/sample.js");

  instance.visitor.Program.enter.call(context, path);
  assert.ok(context.nycConfig);
  assert.equal(context.nycConfig.cwd, process.cwd());
  assert.deepEqual(context.nycConfig.include, ["src/**/*.js"]);
  assert.deepEqual(context.nycConfig.exclude, ["**/*.spec.js"]);
  assert.deepEqual(context.nycConfig.extension, [".js", ".jsx"]);
}

// Contract 4: Program visitor respects include and exclude filter patterns to skip non-matching files
{
  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };

  // Matching file in include pattern: should be instrumented
  {
    const instance = instantiatePlugin(mockApi, {});
    const context = createVisitorContext(process.cwd() + "/src/feature.js", {
      cwd: process.cwd(),
      include: ["src/**/*.js"]
    });
    const path = createMockProgramPath("src/feature.js");
    const result = simulatePluginExecution(instance, context, path);
    assert.equal(result.instrumented, true);
    assert.ok(result.body.length > 0);
  }

  // Excluded file in exclude pattern: should be skipped
  {
    const instance = instantiatePlugin(mockApi, {});
    const context = createVisitorContext(process.cwd() + "/src/feature.spec.js", {
      cwd: process.cwd(),
      include: ["src/**/*.js"],
      exclude: ["**/*.spec.js"]
    });
    const path = createMockProgramPath("src/feature.spec.js");
    const result = simulatePluginExecution(instance, context, path);
    assert.equal(result.instrumented, false);
    assert.equal(result.body.length, 0);
  }

  // File outside include pattern: should be skipped
  {
    const instance = instantiatePlugin(mockApi, {});
    const context = createVisitorContext(process.cwd() + "/test/my-test.js", {
      cwd: process.cwd(),
      include: ["src/**/*.js"]
    });
    const path = createMockProgramPath("test/my-test.js");
    const result = simulatePluginExecution(instance, context, path);
    assert.equal(result.instrumented, false);
    assert.equal(result.body.length, 0);
  }

  // node_modules file: should be skipped by default node_modules exclusion
  {
    const instance = instantiatePlugin(mockApi, {});
    const context = createVisitorContext(process.cwd() + "/node_modules/dep/index.js", {
      cwd: process.cwd(),
      include: ["**/*.js"]
    });
    const path = createMockProgramPath("node_modules/dep/index.js");
    const result = simulatePluginExecution(instance, context, path);
    assert.equal(result.instrumented, false);
    assert.equal(result.body.length, 0);
  }
}

// Contract 5: Program visitor generates AST instrumentation and records coverage metrics on Program exit
{
  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };
  const instance = instantiatePlugin(mockApi, {});
  const filePath = process.cwd() + "/src/calculator.js";
  const context = createVisitorContext(filePath, {
    cwd: process.cwd(),
    include: ["src/**/*.js"]
  });
  const path = createMockProgramPath("src/calculator.js");

  instance.visitor.Program.enter.call(context, path);
  assert.ok(context.__dv__);

  const initialBodyCount = path.node.body.length;
  instance.visitor.Program.exit.call(context, path);

  // Program body should have prepended coverage template nodes
  assert.ok(path.node.body.length > initialBodyCount);
  const firstStatement = path.node.body[0];
  assert.ok(firstStatement);
}

// Contract 6: Program visitor invokes onCover callback with resolved file path and coverage metadata
{
  let onCoverCalled = false;
  let receivedFilename = null;
  let receivedCoverage = null;

  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };
  const instance = instantiatePlugin(mockApi, {});
  const filePath = process.cwd() + "/src/service.js";

  const context = createVisitorContext(filePath, {
    cwd: process.cwd(),
    include: ["src/**/*.js"],
    onCover: (filename, coverage) => {
      onCoverCalled = true;
      receivedFilename = filename;
      receivedCoverage = coverage;
    }
  });
  const path = createMockProgramPath("src/service.js");

  simulatePluginExecution(instance, context, path);

  assert.equal(onCoverCalled, true);
  assert.equal(receivedFilename, filePath);
  assert.ok(receivedCoverage);
  assert.equal(receivedCoverage.path, filePath);
  assert.ok(typeof receivedCoverage.statementMap === "object");
  assert.ok(typeof receivedCoverage.fnMap === "object");
  assert.ok(typeof receivedCoverage.branchMap === "object");
  assert.ok(typeof receivedCoverage.s === "object");
  assert.ok(typeof receivedCoverage.f === "object");
  assert.ok(typeof receivedCoverage.b === "object");
}

// Contract 7: Program visitor supports custom coverageVariable configuration
{
  let receivedCoverageVar = null;
  const mockApi = {
    assertVersion: () => {},
    types: createDefaultTypes()
  };
  const instance = instantiatePlugin(mockApi, {});
  const customVarName = "__CUSTOM_ISTANBUL_COVERAGE__";

  const context = createVisitorContext(process.cwd() + "/src/custom-var.js", {
    cwd: process.cwd(),
    include: ["src/**/*.js"],
    coverageVariable: customVarName,
    onCover: (filename, coverage) => {
      receivedCoverageVar = context.nycConfig?.coverageVariable;
    }
  });
  const path = createMockProgramPath("src/custom-var.js");

  simulatePluginExecution(instance, context, path);

  assert.equal(receivedCoverageVar, customVarName);
}

console.log("All babel-plugin-istanbul contract tests passed successfully.");

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