[erlang-questions] Eunit testing after starting the application

[Code Wiget]

Nathaniel,

Thank you - ensure_all_started is going to save me dozens of lines of code in other locations =).

Gleb,

Are you suggesting not doing eunit testing and just running with common tests and using init_per_testcase ? I get that EUnit is easy, but for an application that is already built, when we are trying to test system functionality, maybe it is better to just go full on with the common test suite?



On May 31, 2018, 11:42 AM -0400, Gleb Vinogradov <g.a.vinogradov@REDACTED>, wrote:
> You can use CommonTest to bootstrap your application. Set environment variables, start applications etc in CommonTest and run EUnit test then.
>
> > 2018-05-31 22:24 GMT+07:00 Code Wiget <codewiget95@REDACTED>:
> > > Hey everyone,
> > >
> > > How do you go about EUnit testing that requires the whole application to be running before the test ?
> > >
> > > For example, my erlang application starts one pool of processes that connects to a database and another that connects to another server in our backend. To run any real tests, I’m going to need to have one or both of those systems up and running. The way that I’m doing is right now is below, and it is very cluge-y feeling:
> > >
> > > ok = application:start(compiler),
> > > ok = application:start(syntax_tools),
> > > ok = application:start(goldrush),
> > > ok = application:start(gproc),
> > > ok = application:start(gen_logger),
> > > ok = application:start(pooler),
> > > ok = application:start(quickrand),
> > > ok = application:start(re2),
> > > ok = application:start(lz4),
> > > ok = application:start(uuid),
> > > ok = application:start(semver),
> > > ok = application:start(snappy),
> > > ok = application:start(cqerl),
> > > ok = application:start(ecpool),
> > > ok = application:start(esockd),
> > > ok = application:start(lager_syslog),
> > > ok = application:start(lager),
> > >
> > >
> > > This system works because none of the above applications require any environment variables from a config file. So some of my other applications can’t run using this. Is there any way to have eunit run the test after starting the whole application?
> > >
> > > Thanks!
> > >
> > >
> > >
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> > >
>
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