From 7fa3a0c90a02d198d6058fb29507564539abdd6a Mon Sep 17 00:00:00 2001
From: Lucas Mazza <lucastmazza@gmail.com>
Date: Mon, 21 Dec 2015 22:13:00 -0200
Subject: Add colored output to the new test reporter.

---
 railties/lib/rails/test_unit/minitest_plugin.rb |  8 +++++
 railties/lib/rails/test_unit/reporter.rb        | 40 ++++++++++++++++++++++++-
 2 files changed, 47 insertions(+), 1 deletion(-)

(limited to 'railties/lib/rails')

diff --git a/railties/lib/rails/test_unit/minitest_plugin.rb b/railties/lib/rails/test_unit/minitest_plugin.rb
index d39d2f32bf..c1ea307f93 100644
--- a/railties/lib/rails/test_unit/minitest_plugin.rb
+++ b/railties/lib/rails/test_unit/minitest_plugin.rb
@@ -49,6 +49,12 @@ module Minitest
       options[:fail_fast] = true
     end
 
+    opts.on("-c", "--[no-]color",
+            "Enable color in the output") do |value|
+      options[:color] = value
+    end
+
+    options[:color] = true
     options[:output_inline] = true
     options[:patterns] = opts.order!
   end
@@ -80,6 +86,8 @@ module Minitest
     # Disable the extra failure output after a run, unless output is deferred.
     self.hide_aggregated_results = options[:output_inline]
 
+    self.reporter.reporters.clear
+    self.reporter << SummaryReporter.new(options[:io], options)
     self.reporter << ::Rails::TestUnitReporter.new(options[:io], options)
   end
 
diff --git a/railties/lib/rails/test_unit/reporter.rb b/railties/lib/rails/test_unit/reporter.rb
index 695c67756b..ba80dad2e3 100644
--- a/railties/lib/rails/test_unit/reporter.rb
+++ b/railties/lib/rails/test_unit/reporter.rb
@@ -6,13 +6,34 @@ module Rails
     class_attribute :executable
     self.executable = "bin/rails test"
 
+    COLOR_CODES_FOR_RESULTS = {
+      "." => :green,
+      "E" => :red,
+      "F" => :red,
+      "S" => :yellow
+    }
+
+    COLOR_CODES = {
+      red: 31,
+      green: 32,
+      yellow: 33,
+      blue: 34
+    }
+
     def record(result)
       super
+      color = COLOR_CODES_FOR_RESULTS[result.result_code]
+
+      if options[:verbose]
+        io.puts color(format_line(result), color)
+      else
+        io.print color(result.result_code, color)
+      end
 
       if output_inline? && result.failure && (!result.skipped? || options[:verbose])
         io.puts
         io.puts
-        io.puts format_failures(result)
+        io.puts format_failures(result).map { |line| color(line, :red) }
         io.puts
         io.puts format_rerun_snippet(result)
         io.puts
@@ -56,6 +77,10 @@ module Rails
         options[:fail_fast]
       end
 
+      def format_line(result)
+        "%s#%s = %.2f s = %s" % [result.class, result.name, result.time, result.result_code]
+      end
+
       def format_failures(result)
         result.failures.map do |failure|
           "#{failure.result_label}:\n#{result.class}##{result.name}:\n#{failure.message}\n"
@@ -76,5 +101,18 @@ module Rails
       def app_root
         @app_root ||= defined?(ENGINE_ROOT) ? ENGINE_ROOT : Rails.root
       end
+
+      def colored_output?
+        options[:color] && io.respond_to?(:tty?) && io.tty?
+      end
+
+      def color(string, color)
+        if colored_output?
+          color = COLOR_CODES[color]
+          "\e[#{color}m#{string}\e[0m"
+        else
+          string
+        end
+      end
   end
 end
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