tests: fix App def to match new struct format

Follows from 01cbee824a.

config/env_test.go

@@ -28,6 +28,7 @@ var expectedApp = App{
 	Type:   expectedAppEnv["TYPE"],
 	Domain: expectedAppEnv["DOMAIN"],
 	Env:    expectedAppEnv,
+	File:   expectedAppFile,
 }
 
 var expectedAppFile = AppFile{
@@ -82,7 +83,7 @@ func TestReadEnv(t *testing.T) {
 }
 
 func TestMakeApp(t *testing.T) {
-	app, err := makeApp(expectedAppEnv, appName)
+	app, err := makeApp(expectedAppEnv, appName, expectedAppFile)
 	if err != nil {
 		t.Fatal(err)
 	}