1 files changed, 21 insertions, 1 deletions
diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 3497f6aae4..7fc4a396e4 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -629,7 +629,7 @@ class BasicsTest < ActiveRecord::TestCase
   end
 
   def test_readonly_attributes
-    assert_equal Set.new([ "title" , "comments_count" ]), ReadonlyTitlePost.readonly_attributes
+    assert_equal Set.new([ "title", "comments_count" ]), ReadonlyTitlePost.readonly_attributes
 
     post = ReadonlyTitlePost.create(title: "cannot change this", body: "changeable")
     post.reload
@@ -1495,4 +1495,24 @@ class BasicsTest < ActiveRecord::TestCase
     # regular column
     assert query.include?("name")
   end
+
+  test "column names are quoted when using #from clause and model has ignored columns" do
+    refute_empty Developer.ignored_columns
+    query = Developer.from("`developers`").to_sql
+    quoted_id = Developer.connection.quote_table_name("id")
+
+    assert_match(/SELECT #{quoted_id}.* FROM `developers`/, query)
+  end
+
+  test "protected environments by default is an array with production" do
+    assert_equal ["production"], ActiveRecord::Base.protected_environments
+  end
+
+  def test_protected_environments_are_stored_as_an_array_of_string
+    previous_protected_environments = ActiveRecord::Base.protected_environments
+    ActiveRecord::Base.protected_environments = [:staging, "production"]
+    assert_equal ["staging", "production"], ActiveRecord::Base.protected_environments
+  ensure
+    ActiveRecord::Base.protected_environments = previous_protected_environments
+  end
 end