Function testAllowedExtensions

src/test/index.spec.ts:1048–1066

(
      t: ExecutionContext<ctxTsNode.Ctx>,
      compilerOptions: CreateOptions['compilerOptions'],
      allowed: string[]
    )

  test.suite('issue #1098', (test) => {
    function testAllowedExtensions(
      t: ExecutionContext<ctxTsNode.Ctx>,
      compilerOptions: CreateOptions['compilerOptions'],
      allowed: string[]
    ) {
      const disallowed = allExtensions.filter((ext) => !allowed.includes(ext));
      const { ignored } = t.context.tsNodeUnderTest.create({
        compilerOptions,
        skipProject: true,
      });
      for (const ext of allowed) {
        t.log(`Testing that ${ext} files are allowed`);
        expect(ignored(join(DIST_DIR, `index${ext}`))).toBe(false);
      }
      for (const ext of disallowed) {
        t.log(`Testing that ${ext} files are ignored`);
        expect(ignored(join(DIST_DIR, `index${ext}`))).toBe(true);
      }
    }

    const allExtensions = [
      '.ts',