added another test
diff --git a/test/build/script_compactor_test.dart b/test/build/script_compactor_test.dart
index 69e6949..7ffed81 100644
--- a/test/build/script_compactor_test.dart
+++ b/test/build/script_compactor_test.dart
@@ -238,6 +238,20 @@
'https://www.dartlang.org/tools/pub/pubspec.html#name.'
], StringFormatter.noNewlinesOrSurroundingWhitespace);
+ testPhases('package names with double periods are not allowed', phases, {
+ 'a..b|web/a.html': '''
+ <!DOCTYPE html><html><head></head><body>
+ <script type="application/dart" src="a.dart"></script>
+ </body></html>''',
+ 'a..b|web/a.dart': '''
+ library a.a;
+ main(){}''',
+ }, {}, [
+ 'error: Invalid package name `a..b`. Package names should be '
+ 'valid dart identifiers, as indicated at '
+ 'https://www.dartlang.org/tools/pub/pubspec.html#name.'
+ ], StringFormatter.noNewlinesOrSurroundingWhitespace);
+
testPhases('package names with internal periods are allowed', phases, {
'a.b|web/a.html': '''
<!DOCTYPE html><html><head></head><body>
