Code coverage for smoke tests.

Allow non-circle people to build coverage reports.

prog/weaver/main.go

@@ -12,6 +12,7 @@ import (
 	"github.com/davecheney/profile"
 	"github.com/docker/docker/pkg/mflag"
 	"github.com/gorilla/mux"
+
 	. "github.com/weaveworks/weave/common"
 	"github.com/weaveworks/weave/common/docker"
 	"github.com/weaveworks/weave/ipam"

prog/weaver/main_test.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"testing"
+
+	weavetest "github.com/weaveworks/weave/testing"
+)
+
+func TestMain(t *testing.T) {
+	weavetest.TrimTestArgs()
+	main()
+}