Make webpack respect dependencies vs peerDependencies when deciding dependency is external (#7545)

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

packages/infrastructure/webpack/src/plugins/to-module-matcher-reg-exp/to-module-matcher-reg-exp.js

@@ -0,0 +1,3 @@
+const toModuleMatcherRegExp = x => new RegExp(`^${x}(/.*)*$`);
+
+module.exports = { toModuleMatcherRegExp };

packages/infrastructure/webpack/src/plugins/to-module-matcher-reg-exp/to-module-matcher-reg-exp.test.js

@@ -0,0 +1,57 @@
+import { toModuleMatcherRegExp } from "./to-module-matcher-reg-exp";
+
+describe('to-module-matcher-reg-exp', () => {
+  let regExp;
+
+  beforeEach(() => {
+    regExp = toModuleMatcherRegExp("some-package");
+  });
+
+  it('given exactly matching package, matches', () => {
+    const targetString = 'some-package';
+
+    const [match] = targetString.match(regExp);
+
+    expect(match).toBeTruthy()
+  });
+
+  it('given matching package with entrypoint, matches', () => {
+    const targetString = 'some-package/some-entrypoint';
+
+    const [match] = targetString.match(regExp);
+
+    expect(match).toBeTruthy()
+  });
+
+  it('given matching package with directory, matches', () => {
+    const targetString = 'some-package/some-directory/some-other-directory';
+
+    const [match] = targetString.match(regExp);
+
+    expect(match).toBeTruthy()
+  });
+
+  it('given package that starts with same name but is still different, does not match', () => {
+    const targetString = 'some-package-but-still-different';
+
+    const actual = targetString.match(regExp);
+
+    expect(actual).toBeNull()
+  });
+
+  it('given package that starts with something else, does not match', () => {
+    const targetString = 'different-some-package';
+
+    const actual = targetString.match(regExp);
+
+    expect(actual).toBeNull()
+  });
+
+  it('given irrelevant package, does not match', () => {
+    const targetString = 'some-other-package';
+
+    const actual = targetString.match(regExp);
+
+    expect(actual).toBeNull()
+  });
+});