Added ruby test for skipped tests

Author: toote

ruby/tests/annotate_test.rb

@@ -581,4 +581,22 @@
 
     assert_equal 0, status.exitstatus
   end
+
+  it "correctly parses skipped tests" do
+    stdout, stderr, status = Open3.capture3("#{__dir__}/../bin/annotate", "#{__dir__}/skipped-test/")
+
+    assert_equal stderr, <<~OUTPUT
+      Parsing junit.xml
+      --- ✍️ Preparing annotation
+    OUTPUT
+
+    assert_equal stdout, <<~OUTPUT
+      Failures: 0
+      Errors: 0
+      Skipped: 1
+      Total tests: 2
+    OUTPUT
+
+    assert_equal 0, status.exitstatus
+  end
 end

ruby/tests/skipped-test/junit.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuite name="rspec" tests="2" skipped="1" failures="0" errors="0" time="49.290713" timestamp="2018-04-18T23:29:42+00:00" hostname="626d214475e4">
+  <testcase classname="spec.models.account_spec" name="Account#maximum_jobs_added_by_pipeline_changer returns 500 if the account is ABC" file="./spec/models/account_spec.rb" time="0.020013"/>
+  <testcase classname="spec.models.account_spec" name="Account#maximum_jobs_added_by_pipeline_changer returns 250 by default" file="./spec/models/account_spec.rb" time="0">
+    <skipped message="because of reasons" />
+  </testcase>
+</testsuite>