WIP - add extractor, generate snippet_data

node_modules/pnp-webpack-plugin/index.test.js

@@ -0,0 +1,63 @@
+const path = require(`path`);
+let PnpWebpackPlugin = require(`./index`);
+
+function makeResolver(resolverPlugins, options = {}) {
+  const {
+    NodeJsInputFileSystem,
+    CachedInputFileSystem,
+    ResolverFactory
+  } = require('enhanced-resolve');
+
+  const resolver = ResolverFactory.createResolver({
+    fileSystem: new CachedInputFileSystem(new NodeJsInputFileSystem(), 4000),
+    extensions: ['.js', '.json'],
+    ... options,
+  });
+
+  for (const {apply} of resolverPlugins)
+    apply(resolver);
+
+  return resolver;
+}
+
+function makeRequest(resolver, request, issuer) {
+  return new Promise((resolve, reject) => {
+    resolver.resolve({}, issuer, request, {}, (err, filepath) => {
+      if (err) {
+        reject(err);
+      } else {
+        resolve(filepath);
+      }
+    });
+  });
+}
+
+describe(`Regular Plugin`, () => {
+  it(`should correctly resolve a relative require`, async () => {
+    const resolver = makeResolver([PnpWebpackPlugin]);
+    const resolution = await makeRequest(resolver, `./index.js`, __dirname);
+
+    expect(resolution).toEqual(path.normalize(`${__dirname}/index.js`));
+  });
+
+  it(`shouldn't prevent the 'extensions' option from working`, async () => {
+    const resolver = makeResolver([PnpWebpackPlugin]);
+    const resolution = await makeRequest(resolver, `./index`, __dirname);
+
+    expect(resolution).toEqual(path.normalize(`${__dirname}/index.js`));
+  });
+
+  it(`shouldn't prevent the 'alias' option from working`, async () => {
+    const resolver = makeResolver([PnpWebpackPlugin], {alias: {[`foo`]: `./fixtures/index.js`}});
+    const resolution = await makeRequest(resolver, `foo`, __dirname);
+
+    expect(resolution).toEqual(path.normalize(`${__dirname}/fixtures/index.js`));
+  });
+
+  it(`shouldn't prevent the 'modules' option from working`, async () => {
+    const resolver = makeResolver([PnpWebpackPlugin], {modules: [`./fixtures`]});
+    const resolution = await makeRequest(resolver, `file`, __dirname);
+
+    expect(resolution).toEqual(path.normalize(`${__dirname}/fixtures/file.js`));
+  });
+});