Index: pkg/unittest/string_matchers.dart |
diff --git a/pkg/unittest/string_matchers.dart b/pkg/unittest/string_matchers.dart |
index 11ed087bcc28276505a240b3e049502598724c1e..33ab285d1afa9875cc168e8a7b4b0c458af5f878 100644 |
--- a/pkg/unittest/string_matchers.dart |
+++ b/pkg/unittest/string_matchers.dart |
@@ -171,7 +171,7 @@ class _MatchesRegExp extends _StringMatcher { |
} else if (re is RegExp) { |
_regexp = re; |
} else { |
- throw new IllegalArgumentException('matches requires a regexp or string'); |
+ throw new ArgumentError('matches requires a regexp or string'); |
} |
} |