run tests directly; try and fix appveyor build
diff --git a/appveyor.yml b/appveyor.yml
index 56e74eb..08a63c8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,4 +15,5 @@
 build: off
 
 test_script:
-  - pub run test -j1
+#  - pub run test -j1
+  - dart test\all.dart