Add support for using an ARCONFIG environment variable to specify the location of the config.yml file for running the tests

1 files changed, 7 insertions, 4 deletions

diff --git a/activerecord/test/support/config.rb b/activerecord/test/support/config.rb
index 3b1598e368..c7ac077599 100644
--- a/activerecord/test/support/config.rb
+++ b/activerecord/test/support/config.rb
@@ -10,13 +10,16 @@ module ARTest
 
     private
 
+    def config_file
+      Pathname.new(ENV['ARCONFIG'] || TEST_ROOT + '/config.yml')
+    end
+
     def read_config
-      unless File.exist?(TEST_ROOT + '/config.yml')
-        FileUtils.cp TEST_ROOT + '/config.example.yml', TEST_ROOT + '/config.yml'
+      unless config_file.exist?
+        FileUtils.cp TEST_ROOT + '/config.example.yml', config_file
       end
 
-      raw = File.read(TEST_ROOT + '/config.yml')
-      erb = Erubis::Eruby.new(raw)
+      erb = Erubis::Eruby.new(config_file.read)
       expand_config(YAML.parse(erb.result(binding)).transform)
     end