[DRE-maint] Bug#834686: ruby-httpclient: FTBFS too much often (failing tests)

[Santiago Vila]

Package: src:ruby-httpclient
Version: 2.7.1-1
Severity: serious

Dear maintainer:

I tried to build this package with "dpkg-buildpackage -A"
(which is what the "Arch: all" autobuilder would do to build it)
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --buildsystem=ruby --with ruby
   dh_testdir -i -O--buildsystem=ruby
   dh_update_autotools_config -i -O--buildsystem=ruby
   dh_auto_configure -i -O--buildsystem=ruby
	dh_ruby --configure
   dh_auto_build -i -O--buildsystem=ruby
	dh_ruby --build
   dh_ruby --build
   dh_auto_test -i -O--buildsystem=ruby
	dh_ruby --test
 fakeroot debian/rules binary-indep
dh binary-indep --buildsystem=ruby --with ruby

[... snipped ...]

  test_debug_dev:					.: (1.147961)
  test_no_sslv3:					F
===============================================================================
Failure: test_no_sslv3(TestSSL)
/<<PKGBUILDDIR>>/test/test_ssl.rb:221:in `test_no_sslv3'
     218: 
     219:   def test_no_sslv3
     220:     teardown_server
  => 221:     assert_raise(ArgumentError) do
     222:       setup_server_with_ssl_version(:SSLv3)
     223:       @client.ssl_config.verify_mode = nil
     224:       @client.get("https://localhost:#{serverport}/hello")

<ArgumentError> expected but was
<Errno::EADDRINUSE(<Address already in use - listen(2)>)>

diff:
? ArgumentErrno::EADDRINUSE(<Address already in use - listen(2)>)
===============================================================================
: (1.109614)
  test_options:						.: (0.101632)
  test_proxy_ssl:					.: (1.284714)
  test_set_default_paths:				.: (1.151999)
  test_sync:						.: (1.191771)
  test_use_higher_TLS:					O
===============================================================================
TODO: it does not pass with Java 7 or old openssl  [test_use_higher_TLS(TestSSL)]
/<<PKGBUILDDIR>>/test/test_ssl.rb:238:in `test_use_higher_TLS'
===============================================================================
: (1.102445)
  test_verification:					.: (0.197484)

Finished in 183.685536657 seconds.
------
221 tests, 747 assertions, 1 failures, 7 errors, 0 pendings, 1 omissions, 0 notifications
96.3636% passed
------
1.20 tests/s, 4.07 assertions/s
rake aborted!
Command failed with status (1): [ruby -I"test"  "/usr/lib/ruby/vendor_ruby/rake/rake_test_loader.rb" "test/test_auth.rb" "test/test_cookie.rb" "test/test_hexdump.rb" "test/test_http-access2.rb" "test/test_httpclient.rb" "test/test_include_client.rb" "test/test_jsonclient.rb" "test/test_ssl.rb" "test/test_webagent-cookie.rb" -v]

Tasks: TOP => default
(See full trace by running task with --trace)
ERROR: Test "ruby2.3" failed. Exiting.
dh_auto_install: dh_ruby --install /<<PKGBUILDDIR>>/debian/ruby-httpclient returned exit code 1
debian/rules:6: recipe for target 'binary-indep' failed
make: *** [binary-indep] Error 1
dpkg-buildpackage: error: fakeroot debian/rules binary-indep gave error exit status 2
--------------------------------------------------------------------------------

Because this source package only generates "Arch: all" packages, this
is the same as a FTBFS bug in the usual sense and the fact that I was
using "dpkg-buildpackage -A" is quite irrelevant.

For this particular package, I've also checked that it fails to build
from source in the reproducible builds site:

https://tests.reproducible-builds.org/

Thanks.