Use dope.sh to generate a testable app from production template

template-test/app_diff/main.wasp.diff

@@ -0,0 +1,28 @@
+--- /Users/ilakovac/dev/open-saas/template-test/tools/../../template-test/base-app/app/main.wasp
++++ template-test/app/main.wasp
+@@ -39,7 +39,7 @@
+       email: {
+         fromField: {
+           name: "Open SaaS App",
+-          email: "me@example.com"
++          email: "opensaastemplate@mg.wasp.sh"
+         },
+         emailVerification: {
+           clientRoute: EmailVerificationRoute,
+@@ -84,14 +84,11 @@
+   },
+ 
+   emailSender: {
+-    // NOTE: "Dummy" provider is just for local development purposes.
+-    //   Make sure to check the server logs for the email confirmation url (it will not be sent to an address)!
+-    //   Once you are ready for production, switch to e.g. "SendGrid" or "Mailgun" providers. Check out https://docs.opensaas.sh/guides/email-sending/ .
+-    provider: Dummy,
++    provider: SMTP,
+     defaultFrom: {
+       name: "Open SaaS App",
+       // When using a real provider, e.g. SendGrid, you must use the same email address that you configured your account to send out emails with!
+-      email: "me@example.com"
++      email: "opensaastemplate@mg.wasp.sh"
+     },
+   },
+ }