Merge remote branch 'mainstream/master'

Conflicts:
	activerecord/lib/active_record/base.rb
	railties/lib/rails/configuration.rb
	railties/lib/rails/log_subscriber.rb

1 files changed, 25 insertions, 0 deletions

diff --git a/activemodel/test/cases/conversion_test.rb b/activemodel/test/cases/conversion_test.rb
new file mode 100644
index 0000000000..7669bf5f65
--- /dev/null
+++ b/activemodel/test/cases/conversion_test.rb
@@ -0,0 +1,25 @@
+require 'cases/helper'
+require 'models/contact'
+
+class ConversionTest < ActiveModel::TestCase
+  test "to_model default implementation returns self" do
+    contact = Contact.new
+    assert_equal contact, contact.to_model
+  end
+
+  test "to_key default implementation returns nil for new records" do
+    assert_nil Contact.new.to_key
+  end
+
+  test "to_key default implementation returns the id in an array for persisted records" do
+    assert_equal [1], Contact.new(:id => 1).to_key
+  end
+
+  test "to_param default implementation returns nil for new records" do
+    assert_nil Contact.new.to_param
+  end
+
+  test "to_param default implementation returns a string of ids for persisted records" do
+    assert_equal "1", Contact.new(:id => 1).to_param
+  end
+end
\ No newline at end of file