2 files changed, 32 insertions, 5 deletions
diff --git a/railties/lib/rails/test_unit/minitest_plugin.rb b/railties/lib/rails/test_unit/minitest_plugin.rb
index 1923433c4a..b65d67b2a5 100644
--- a/railties/lib/rails/test_unit/minitest_plugin.rb
+++ b/railties/lib/rails/test_unit/minitest_plugin.rb
@@ -14,6 +14,8 @@ module Minitest
     opts.separator ""
     opts.separator "    bin/rails test test/controllers test/integration/login_test.rb"
     opts.separator ""
+    opts.separator "By default test failures and errors are reported inline during a run."
+    opts.separator ""
 
     opts.separator "Rails options:"
     opts.on("-e", "--environment ENV",
@@ -26,6 +28,11 @@ module Minitest
       options[:full_backtrace] = true
     end
 
+    opts.on("-d", "--defer-output",
+            "Output test failures and errors after the test run") do
+      options[:output_inline] = false
+    end
+
     options[:patterns] = opts.order!
   end
 
diff --git a/railties/lib/rails/test_unit/reporter.rb b/railties/lib/rails/test_unit/reporter.rb
index 09b8675cf8..c88e9aa60e 100644
--- a/railties/lib/rails/test_unit/reporter.rb
+++ b/railties/lib/rails/test_unit/reporter.rb
@@ -6,8 +6,21 @@ module Rails
     class_attribute :executable
     self.executable = "bin/rails test"
 
+    def record(result)
+      super
+
+      if output_inline? && result.failure && (!result.skipped? || options[:verbose])
+        io.puts
+        io.puts
+        io.puts result.failures.map(&:message)
+        io.puts
+        io.puts format_rerun_snippet(result)
+        io.puts
+      end
+    end
+
     def report
-      return if filtered_results.empty?
+      return if output_inline? || filtered_results.empty?
       io.puts
       io.puts "Failed tests:"
       io.puts
@@ -15,10 +28,7 @@ module Rails
     end
 
     def aggregated_results # :nodoc:
-      filtered_results.map do |result|
-        location, line = result.method(result.name).source_location
-        "#{self.executable} #{relative_path_for(location)}:#{line}"
-      end.join "\n"
+      filtered_results.map { |result| format_rerun_snippet(result) }.join "\n"
     end
 
     def filtered_results
@@ -32,5 +42,15 @@ module Rails
     def relative_path_for(file)
       file.sub(/^#{Rails.root}\/?/, '')
     end
+
+    private
+      def output_inline?
+        options.fetch(:output_inline, true)
+      end
+
+      def format_rerun_snippet(result)
+        location, line = result.method(result.name).source_location
+        "#{self.executable} #{relative_path_for(location)}:#{line}"
+      end
   end
 end