Validate that a single library has the same name as the package.

utils/tests/pub/validator_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library validator_test;
 
 import 'dart:io';
 import 'dart:json';
 
 import 'test_pub.dart';
@@ skipping 192 matching lines @@
       expectValidationError(name);
       run();
     });
 
     test('has a package name that contains upper-case letters', () {
       dir(appPath, [libPubspec("TestPkg", "1.0.0")]).scheduleCreate();
       expectValidationWarning(name);
       run();
     });
 
-    test('has a package name that is a Dart identifier', () {
+    test('has a package name that is a Dart reserved word', () {
       dir(appPath, [libPubspec("operator", "1.0.0")]).scheduleCreate();
       expectValidationError(name);
       run();
     });
 
     test('has a library name with an invalid character', () {
       dir(appPath, [
         libPubspec("test_pkg", "1.0.0"),
         dir("lib", [file("test-pkg.dart", "int i = 0;")])
       ]).scheduleCreate();
@@ skipping 12 matching lines @@
 
     test('has a library name that contains upper-case letters', () {
       dir(appPath, [
         libPubspec("test_pkg", "1.0.0"),
         dir("lib", [file("TestPkg.dart", "int i = 0;")])
       ]).scheduleCreate();
       expectValidationWarning(name);
       run();
     });
 
-    test('has a library name that is a Dart identifier', () {
+    test('has a library name that is a Dart reserved word', () {
       dir(appPath, [
         libPubspec("test_pkg", "1.0.0"),
         dir("lib", [file("operator.dart", "int i = 0;")])
       ]).scheduleCreate();
       expectValidationError(name);
       run();
     });
 
+    test('has a single library named differently than the package', () {
+      file(join(appPath, "lib", "test_pkg.dart"), '').scheduleDelete();
+      dir(appPath, [
+        dir("lib", [file("best_pkg.dart", "int i = 0;")])
+      ]).scheduleCreate();
+      expectValidationWarning(name);
+      run();
+    });
+
     test('has no lib directory', () {
       dir(join(appPath, "lib")).scheduleDelete();
       expectValidationError(lib);
       run();
     });
 
     test('has an empty lib directory', () {
       file(join(appPath, "lib", "test_pkg.dart"), '').scheduleDelete();
       expectValidationError(lib);
       run();
     });
 
     test('has a lib directory containing only src', () {
       file(join(appPath, "lib", "test_pkg.dart"), '').scheduleDelete();
       dir(appPath, [
         dir("lib", [
           dir("src", [file("test_pkg.dart", "int i = 0;")])
         ])
       ]).scheduleCreate();
       expectValidationError(lib);
       run();
     });
   });
 }