fix tests for explain plan + binds

activerecord/test/cases/explain_test.rb

@@ -26,8 +26,8 @@ def test_collecting_queries_for_explain
 
       sql, binds = queries[0]
       assert_match "SELECT", sql
-      assert_match "honda", sql
-      assert_equal [], binds
+      assert_equal "honda", binds.flatten.last
+      assert_equal 1, binds.length
     end
 
     def test_exec_explain_with_no_binds

activerecord/test/cases/hot_compatibility_test.rb

@@ -15,7 +15,7 @@ def self.name; 'HotCompatibility'; end
   end
 
   teardown do
-    @klass.connection.drop_table :hot_compatibilities
+    ActiveRecord::Base.connection.drop_table :hot_compatibilities
   end
 
   test "insert after remove_column" do