Enable testing of multiple packages

.travis.yml

@@ -13,5 +13,10 @@ before_install:
   - if ! go get code.google.com/p/go.tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi
 
 script:
-  - go test -v -covermode=count -coverprofile=coverage.out
+  - echo "mode: count" > coverage.out
+  - go test -v -covermode=count -coverprofile=magic_packet.out
+  - go test -v ./cmd/wol -covermode=count -coverprofile=wol.out
+  - cat magic_packet.out | tail -n +2 >> coverage.out
+  - cat wol.out | tail -n +2 >> coverage.out
+  - rm magic_packet.out wol.out
   - goveralls -coverprofile=coverage.out -service travis-ci -repotoken $COVERALLS_TOKEN

cmd/wol/alias_test.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+    "github.com/stretchr/testify/assert"
+    "testing"
+)
+
+// This is just a dummy test to enable cross package coverage
+func TestDecodeToMacIface(test *testing.T) {
+    assert.Equal(test, 1, 1)
+}