CODEWITHSUNDEEP
rubyregexchef-infraserverspec
localhostv6
localhostv6

Reputation: 47

Chef ServerSpec Regex Match Not Working

I'm trying to math a regex to the stdout of a command. Even though the regex should match it doesn't seem to be doing as such:

> [#]        Command "pm2 list"
> [#]          stdout
> [#]            should match /.*online.*/ (FAILED - 1)
> [#]
> [#]        Failures:
> [#]
> [#]          1) Command "pm2 list" stdout should match /.*online.*/
> [#]             Failure/Error: its(:stdout) { should match /.*online.*/}
> [#]             ArgumentError:
> [#]               invalid byte sequence in US-ASCII
> [#]               /bin/sh -c pm2\ list
> [#]               ┌──────────┬────┬──────┬──────┬────────┬───────────┬────────┬─────────────┬─────────────┐
> [#]        │ App name │ id │ mode │ PID  │ status │ restarted │ uptime │      memory │    watching │
> [#]        ├──────────┼────┼──────┼──────┼────────┼───────────┼────────┼─────────────┼─────────────┤
> [#]        │ app      │ 0  │ fork │ 3684 │ online │         0 │ 5m     │ 13.898 MB   │ unactivated │
> [#]        └──────────┴────┴──────┴──────┴────────┴───────────┴────────┴─────────────┴─────────────┘
> [#]         Use `pm2 desc[ribe] <id>` to get more details
> [#]
> [#]             # /tmp/busser/suites/serverspec/localhost/nodejs_spec.rb:10:in `block (2 levels) in <top (required)>'
> [#]
> [#]        Finished in 0.77549 seconds (files took 0.19867 seconds to load)
> [#]        3 examples, 1 failure

Why is the regex not matching?

A similar regex running inside the cookbook works just fine:

...
process_check = Mixlib::ShellOut.new("pm2 list")
process_check.run_command
if process_check.stdout =~ /(stopped|online)/
...

Upvotes: 0

Views: 1162

Answers (1)

coderanger
coderanger

Reputation: 54251

The actual error is the invalid byte sequence in US-ASCII. Mixlib-shellout is very careful to be encoding-aware, but this isn't what Serverspec uses to run commands AFAIK. The matcher is trying to convert (probably) UTF-8 data to an ASCII string, which is failing. Try should include('online') perhaps? You would have to dive the matcher code in rspec to be certain of how they process strings.

Upvotes: 1

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