Use minitest-reporters instead of minitest-ci

The win: there's a "spec" reporter that outputs one line per test. Since
docker-compose buffers log messages by line, this gives much quicker
feedback into the test framework, instead of simply showing a single line
once every test is done.

docker/Dockerfile

@@ -16,6 +16,7 @@ RUN set -x \
         ca-certificates \
         chromium \
         curl \
+        libffi-dev \
         libgconf2.0 \
         ruby \
         ruby-dev \

docker/Gemfile

@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'capybara'
-gem 'minitest-ci'
+gem 'minitest-reporters'
 gem 'selenium-webdriver'

docker/Gemfile.lock

@@ -3,6 +3,8 @@ GEM
   specs:
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
+    ansi (1.5.0)
+    builder (3.2.3)
     capybara (2.17.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -12,22 +14,26 @@ GEM
       xpath (>= 2.0, < 4.0)
     childprocess (0.8.0)
       ffi (~> 1.0, >= 1.0.11)
-    ffi (1.9.18)
+    ffi (1.9.21)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
-    minitest (5.11.1)
-    minitest-ci (3.3.0)
-      minitest (>= 5.0.6)
-    nokogiri (1.8.1)
+    minitest (5.11.3)
+    minitest-reporters (1.1.19)
+      ansi
+      builder
+      minitest (>= 5.0)
+      ruby-progressbar
+    nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.1)
-    rack (2.0.3)
+    rack (2.0.4)
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
+    ruby-progressbar (1.9.0)
     rubyzip (1.2.1)
-    selenium-webdriver (3.8.0)
+    selenium-webdriver (3.9.0)
       childprocess (~> 0.5)
-      rubyzip (~> 1.0)
+      rubyzip (~> 1.2)
     xpath (3.0.0)
       nokogiri (~> 1.8)
 
@@ -36,8 +42,8 @@ PLATFORMS
 
 DEPENDENCIES
   capybara
-  minitest-ci
+  minitest-reporters
   selenium-webdriver
 
 BUNDLED WITH
-   1.16.0
+   1.15.4

skeleton/spec/spec_helper.rb

@@ -1,5 +1,5 @@
 require 'minitest/autorun'
-require 'minitest/ci'
+require 'minitest/reporters'
 require 'minitest/spec'
 require 'capybara'
 require 'selenium-webdriver'
@@ -12,7 +12,10 @@
 WAIT_LOAD = 10 # 10s: how long to wait for a page to load
 WAIT_SLOW = 70 # 60s: how long to wait for Overview to complete an import job
 
-Minitest::Ci.report_dir = '/app/reports'
+Minitest::Reporters.use! [
+  Minitest::Reporters::SpecReporter.new,
+  Minitest::Reporters::JUnitReporter.new('/app/reports')
+]
 
 def chrome_args
   # Dynamic: each time we call this, create a new user-data-dir