Merge pull request #15172 from notEthan/active_record_pretty_print

implement ActiveRecord::Base#pretty_print

Conflicts:
	activerecord/CHANGELOG.md

1 files changed, 68 insertions, 0 deletions

diff --git a/activerecord/test/cases/core_test.rb b/activerecord/test/cases/core_test.rb
index 2a52bf574c..715d92af99 100644
--- a/activerecord/test/cases/core_test.rb
+++ b/activerecord/test/cases/core_test.rb
@@ -1,6 +1,8 @@
 require 'cases/helper'
 require 'models/person'
 require 'models/topic'
+require 'pp'
+require 'active_support/core_ext/string/strip'
 
 class NonExistentTable < ActiveRecord::Base; end
 
@@ -30,4 +32,70 @@ class CoreTest < ActiveRecord::TestCase
   def test_inspect_class_without_table
     assert_equal "NonExistentTable(Table doesn't exist)", NonExistentTable.inspect
   end
+
+  def test_pretty_print_new
+    topic = Topic.new
+    actual = ''
+    PP.pp(topic, StringIO.new(actual))
+    expected = <<-PRETTY.strip_heredoc
+    #<Topic:0xXXXXXX
+     id: nil,
+     title: nil,
+     author_name: nil,
+     author_email_address: "test@test.com",
+     written_on: nil,
+     bonus_time: nil,
+     last_read: nil,
+     content: nil,
+     important: nil,
+     approved: true,
+     replies_count: 0,
+     unique_replies_count: 0,
+     parent_id: nil,
+     parent_title: nil,
+     type: nil,
+     group: nil,
+     created_at: nil,
+     updated_at: nil>
+    PRETTY
+    assert actual.start_with?(expected.split('XXXXXX').first)
+    assert actual.end_with?(expected.split('XXXXXX').last)
+  end
+
+  def test_pretty_print_persisted
+    topic = topics(:first)
+    actual = ''
+    PP.pp(topic, StringIO.new(actual))
+    expected = <<-PRETTY.strip_heredoc
+    #<Topic:0x\\w+
+     id: 1,
+     title: "The First Topic",
+     author_name: "David",
+     author_email_address: "david@loudthinking.com",
+     written_on: 2003-07-16 14:28:11 UTC,
+     bonus_time: 2000-01-01 14:28:00 UTC,
+     last_read: Thu, 15 Apr 2004,
+     content: "Have a nice day",
+     important: nil,
+     approved: false,
+     replies_count: 1,
+     unique_replies_count: 0,
+     parent_id: nil,
+     parent_title: nil,
+     type: nil,
+     group: nil,
+     created_at: [^,]+,
+     updated_at: [^,>]+>
+    PRETTY
+    assert_match(/\A#{expected}\z/, actual)
+  end
+
+  def test_pretty_print_uninitialized
+    topic = Topic.allocate
+    actual = ''
+    PP.pp(topic, StringIO.new(actual))
+    expected = "#<Topic:XXXXXX not initialized>\n"
+    assert actual.start_with?(expected.split('XXXXXX').first)
+    assert actual.end_with?(expected.split('XXXXXX').last)
+  end
 end