[Reproducible-builds] Bug#794269: FTBFS: many test failures; "expected Exception but was not given a block"

[Chris West (Faux)]

Source: ruby-messagebus-api
Version: 3.0.7+git.20130130.97b34ece-1
Severity: serious
Tags: sid
Justification: fails to build from source
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs

Dear Maintainer,

The package fails to build:

FFFFFFFFFFF..FFFFFFFFFFFFFF....

Failures:

  1) MessagebusApi::Messagebus add cacert file to http communitcations raises error if cert file does not exist
     Failure/Error: expect do
       expected Exception but was not given a block
     # ./spec/messagebus_ruby_api/messagebus_spec.rb:96:in `block (3 levels) in <top (required)>'

  2) MessagebusApi::Messagebus add cacert file to http communitcations accepts a cert file that exists
     Failure/Error: expect do
       expected no Exception but was not given a block
     # ./spec/messagebus_ruby_api/messagebus_spec.rb:104:in `block (3 levels) in <top (required)>'

  3) MessagebusApi::Messagebus#add_message buffered send that adds to empty buffer
     Failure/Error: client.flushed?.should be_false
       expected false to respond to `false?` or perhaps you meant `be false` or `be_falsey`
     # ./spec/messagebus_ruby_api/messagebus_spec.rb:113:in `block (3 levels) in <top (required)>'

....

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/ruby-messagebus-api.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-23-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)