From 63f3c47964e9ced42a87c9412bef8be151ee6ff6 Mon Sep 17 00:00:00 2001
From: Micah Geisel <micah@botandrose.com>
Date: Wed, 23 May 2018 01:25:42 -0700
Subject: [PATCH] .available_strategies should be part of the adapter contract.

---
 lib/database_cleaner/base.rb           | 6 +-----
 lib/database_cleaner/ohm/truncation.rb | 4 ++++
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/database_cleaner/base.rb b/lib/database_cleaner/base.rb
index 8ce49f0..9691cf6 100644
--- a/lib/database_cleaner/base.rb
+++ b/lib/database_cleaner/base.rb
@@ -168,11 +168,7 @@ module DatabaseCleaner
       begin
         require "database_cleaner/#{orm.to_s}/#{strategy.to_s}"
       rescue LoadError
-        if orm_module.respond_to?(:available_strategies)
-          raise UnknownStrategySpecified, "The '#{strategy}' strategy does not exist for the #{orm} ORM!  Available strategies: #{orm_module.available_strategies.join(', ')}"
-        else
-          raise UnknownStrategySpecified, "The '#{strategy}' strategy does not exist for the #{orm} ORM!"
-        end
+        raise UnknownStrategySpecified, "The '#{strategy}' strategy does not exist for the #{orm} ORM!  Available strategies: #{orm_module.available_strategies.join(', ')}"
       end
       retry
     end
diff --git a/lib/database_cleaner/ohm/truncation.rb b/lib/database_cleaner/ohm/truncation.rb
index 1747a32..a0d0adf 100644
--- a/lib/database_cleaner/ohm/truncation.rb
+++ b/lib/database_cleaner/ohm/truncation.rb
@@ -2,6 +2,10 @@ require 'database_cleaner/redis/truncation'
 
 module DatabaseCleaner
   module Ohm
+    def self.available_strategies
+      %w(truncation)
+    end
+
     class Truncation < ::DatabaseCleaner::Redis::Truncation
 
       private