Add SDK constraint to a pubspec (flutter#22375)

This appears to be blocking the Dart SDK roll.
caizongchao · Nov 7, 2020 · f042181 · f042181
1 parent e231e3b
commit f042181
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/testing/dart/pubspec.yaml b/testing/dart/pubspec.yaml
@@ -1,4 +1,8 @@
 name: engine_tests
+
+environment:
+  sdk: '>=2.8.0 <3.0.0'
+
 dependencies:
   test: 1.3.0
   path: 1.6.2