Disable coverage/warnings output when passing in dev

.simplecov

@@ -49,21 +49,32 @@ Coverage.start
 
 ## ADD SOME CUSTOM REPORTING AT EXIT
 SimpleCov.at_exit do
+  next if $! and not ($!.kind_of? SystemExit and $!.success?)
+
   header = "#{'*' * 20} SimpleCov Results #{'*' * 20}"
-  @output.puts
-  @output.puts header
-  @output.puts SimpleCov.result.format!
+  results = SimpleCov.result.format!.join("\n")
+  exit_message = <<-EOF
+
+#{header}
+{{RESULTS}}
+{{FAILURE_MESSAGE}}
+
+#{'*' * header.size}
+  EOF
   percent = Float(SimpleCov.result.covered_percent)
   if percent < @minimum_coverage
-    @output.puts "Spec coverage was not high enough: "\
-    "#{percent.round(2)} is < #{@minimum_coverage}%\n"
-    exit 1 if @generate_report
-  else
-    @output.puts "Nice job! Spec coverage (#{percent.round(2)}) "\
-    "is still at or above #{@minimum_coverage}%\n"
+    failure_message = <<-EOF
+Spec coverage was not high enough: #{percent.round(2)}% is < #{@minimum_coverage}%
+    EOF
+    exit_message.sub!('{{RESULTS}}', results).sub!('{{FAILURE_MESSAGE}}', failure_message)
+    @output.puts exit_message
+    abort(failure_message) if @generate_report
+  elsif @running_ci
+    exit_message.sub!('{{RESULTS}}', results).sub!('{{FAILURE_MESSAGE}}', <<-EOF)
+Nice job! Spec coverage (#{percent.round(2)}%) is still at or above #{@minimum_coverage}%
+    EOF
+    @output.puts exit_message
   end
-  @output.puts
-  @output.puts '*' * header.size
 end
 
 ## CAPTURE CONFIG IN CLOSURE 'AppCoverage.start'