unrs-resolver/napi/tests/resolver.test.mjs

import { join } from "node:path";
import { fileURLToPath } from "node:url";

import { assert, test } from "vite-plus/test";

let ResolverFactory;

if (process.env.WASI_TEST) {
  const wasi = await import("../resolver.wasi.cjs");
  ResolverFactory = wasi.ResolverFactory;
} else {
  const napi = await import("../index.js");
  ResolverFactory = napi.ResolverFactory;
}

const currentDir = join(fileURLToPath(import.meta.url), "..");

const rootDir = join(currentDir, "..", "..");

const fixturesDir = join(rootDir, "fixtures");

const enhancedResolveRoot = join(fixturesDir, "enhanced-resolve", "test", "fixtures");

// https://github.com/webpack/enhanced-resolve/blob/main/test/resolve.test.js

for (const [title, context, request, expected] of [
  [
    "absolute path",
    enhancedResolveRoot,
    join(enhancedResolveRoot, "main1.js"),
    join(enhancedResolveRoot, "main1.js"),
  ],
  ["file with .js", enhancedResolveRoot, "./main1.js", join(enhancedResolveRoot, "main1.js")],
  ["file without extension", enhancedResolveRoot, "./main1", join(enhancedResolveRoot, "main1.js")],
  ["another file with .js", enhancedResolveRoot, "./a.js", join(enhancedResolveRoot, "a.js")],
  ["another file without extension", enhancedResolveRoot, "./a", join(enhancedResolveRoot, "a.js")],
  [
    "file in module with .js",
    enhancedResolveRoot,
    "m1/a.js",
    join(enhancedResolveRoot, "node_modules/m1/a.js"),
  ],
  [
    "file in module without extension",
    enhancedResolveRoot,
    "m1/a",
    join(enhancedResolveRoot, "node_modules/m1/a.js"),
  ],
  [
    "another file in module without extension",
    enhancedResolveRoot,
    "complexm/step1",
    join(enhancedResolveRoot, "node_modules/complexm/step1.js"),
  ],
  [
    "from submodule to file in sibling module",
    join(enhancedResolveRoot, "node_modules/complexm"),
    "m2/b.js",
    join(enhancedResolveRoot, "node_modules/m2/b.js"),
  ],
  [
    "from nested directory to overwritten file in module",
    join(enhancedResolveRoot, "multiple-modules"),
    "m1/a.js",
    join(enhancedResolveRoot, "multiple-modules/node_modules/m1/a.js"),
  ],
  [
    "from nested directory to not overwritten file in module",
    join(enhancedResolveRoot, "multiple-modules"),
    "m1/b.js",
    join(enhancedResolveRoot, "node_modules/m1/b.js"),
  ],
  [
    "file with query",
    enhancedResolveRoot,
    "./main1.js?query",
    join(enhancedResolveRoot, "main1.js?query"),
  ],
  [
    "file with fragment",
    enhancedResolveRoot,
    "./main1.js#fragment",
    join(enhancedResolveRoot, "main1.js#fragment"),
  ],
  [
    "file with fragment and query",
    enhancedResolveRoot,
    "./main1.js#fragment?query",
    join(enhancedResolveRoot, "main1.js#fragment?query"),
  ],
  [
    "file with query and fragment",
    enhancedResolveRoot,
    "./main1.js?#fragment",
    join(enhancedResolveRoot, "main1.js?#fragment"),
  ],

  [
    "file with query (unicode)",
    enhancedResolveRoot,
    "./测试.js?query",
    join(enhancedResolveRoot, "测试.js?query"),
  ],
  [
    "file with fragment (unicode)",
    enhancedResolveRoot,
    "./测试.js#fragment",
    join(enhancedResolveRoot, "测试.js#fragment"),
  ],
  [
    "file with fragment and query (unicode)",
    enhancedResolveRoot,
    "./测试.js#fragment?query",
    join(enhancedResolveRoot, "测试.js#fragment?query"),
  ],
  [
    "file with query and fragment (unicode)",
    enhancedResolveRoot,
    "./测试.js?#fragment",
    join(enhancedResolveRoot, "测试.js?#fragment"),
  ],

  [
    "file in module with query",
    enhancedResolveRoot,
    "m1/a?query",
    join(enhancedResolveRoot, "node_modules/m1/a.js?query"),
  ],
  [
    "file in module with fragment",
    enhancedResolveRoot,
    "m1/a#fragment",
    join(enhancedResolveRoot, "node_modules/m1/a.js#fragment"),
  ],
  [
    "file in module with fragment and query",
    enhancedResolveRoot,
    "m1/a#fragment?query",
    join(enhancedResolveRoot, "node_modules/m1/a.js#fragment?query"),
  ],
  [
    "file in module with query and fragment",
    enhancedResolveRoot,
    "m1/a?#fragment",
    join(enhancedResolveRoot, "node_modules/m1/a.js?#fragment"),
  ],
  [
    "differ between directory and file, resolve file",
    enhancedResolveRoot,
    "./dirOrFile",
    join(enhancedResolveRoot, "dirOrFile.js"),
  ],
  [
    "differ between directory and file, resolve directory",
    enhancedResolveRoot,
    "./dirOrFile/",
    join(enhancedResolveRoot, "dirOrFile/index.js"),
  ],
  [
    "find node_modules outside of node_modules",
    join(enhancedResolveRoot, "browser-module/node_modules"),
    "m1/a",
    join(enhancedResolveRoot, "node_modules/m1/a.js"),
  ],
  [
    "don't crash on main field pointing to self",
    enhancedResolveRoot,
    "./main-field-self",
    join(enhancedResolveRoot, "./main-field-self/index.js"),
  ],
  [
    "don't crash on main field pointing to self (2)",
    enhancedResolveRoot,
    "./main-field-self2",
    join(enhancedResolveRoot, "./main-field-self2/index.js"),
  ],
  // enhanced-resolve has `#` prepended with a `\0`, they are removed from the
  // following 3 expected test results.
  // See https://github.com/webpack/enhanced-resolve#escaping
  [
    "handle fragment edge case (no fragment)",
    enhancedResolveRoot,
    "./no#fragment/#/#",
    join(enhancedResolveRoot, "no#fragment", "#", "#.js"),
  ],
  [
    "handle fragment edge case (fragment)",
    enhancedResolveRoot,
    "./no#fragment/#/",
    join(enhancedResolveRoot, "no.js#fragment") + "/#/",
  ],
  [
    "handle fragment escaping",
    enhancedResolveRoot,
    "./no\0#fragment/\0#/\0##fragment",
    join(enhancedResolveRoot, "no#fragment", "#", "#.js#fragment"),
  ],
]) {
  test(title, () => {
    const resolver = new ResolverFactory({
      modules: ["src/a", "src/b", "src/common", "node_modules"],
      extensions: [".js", ".jsx", ".ts", ".tsx"],
    });

    assert.equal(resolver.sync(context, request).path, expected);
  });
}

const pnpmDir = join(rootDir, "node_modules", ".pnpm");

test("resolve pnpm package", () => {
  const pnpmProjectPath = join(fixturesDir, "pnpm");
  const resolver = new ResolverFactory({
    aliasFields: ["browser"],
  });

  const styledComponents = resolver.sync(pnpmProjectPath, "styled-components");
  assert.deepEqual(
    styledComponents.path,
    join(
      pnpmDir,
      "[email protected][email protected][email protected][email protected]/node_modules/styled-components/dist/styled-components.browser.cjs.js",
    ),
  );

  const react = resolver.sync(
    join(
      pnpmDir,
      "[email protected][email protected][email protected][email protected]/node_modules/styled-components",
    ),
    "react",
  );
  assert.deepEqual(react.path, join(pnpmDir, "[email protected]/node_modules/react/index.js"));
});

test("resolve recursive symbol link", () => {
  const workspaceProjectPath = join(fixturesDir, "pnpm/pnpm-workspace");
  const resolver = new ResolverFactory({});

  const react = resolver.sync(
    join(workspaceProjectPath, "./packages/app"),
    "./node_modules/@monorepo/lib/node_modules/react/package.json",
  );

  assert.deepEqual(react.path, join(pnpmDir, "[email protected]/node_modules/react/package.json"));
});