Merge Arel into Active Record

1 files changed, 51 insertions, 0 deletions

diff --git a/activerecord/test/cases/arel/delete_manager_test.rb b/activerecord/test/cases/arel/delete_manager_test.rb
new file mode 100644
index 0000000000..36d482f10b
--- /dev/null
+++ b/activerecord/test/cases/arel/delete_manager_test.rb
@@ -0,0 +1,51 @@
+# frozen_string_literal: true
+require_relative 'helper'
+
+module Arel
+  class DeleteManagerTest < Arel::Spec
+    describe 'new' do
+      it 'takes an engine' do
+        Arel::DeleteManager.new
+      end
+    end
+
+    it 'handles limit properly' do
+      table = Table.new(:users)
+      dm = Arel::DeleteManager.new
+      dm.take 10
+      dm.from table
+      assert_match(/LIMIT 10/, dm.to_sql)
+    end
+
+    describe 'from' do
+      it 'uses from' do
+        table = Table.new(:users)
+        dm = Arel::DeleteManager.new
+        dm.from table
+        dm.to_sql.must_be_like %{ DELETE FROM "users" }
+      end
+
+      it 'chains' do
+        table = Table.new(:users)
+        dm = Arel::DeleteManager.new
+        dm.from(table).must_equal dm
+      end
+    end
+
+    describe 'where' do
+      it 'uses where values' do
+        table = Table.new(:users)
+        dm = Arel::DeleteManager.new
+        dm.from table
+        dm.where table[:id].eq(10)
+        dm.to_sql.must_be_like %{ DELETE FROM "users" WHERE "users"."id" = 10}
+      end
+
+      it 'chains' do
+        table = Table.new(:users)
+        dm = Arel::DeleteManager.new
+        dm.where(table[:id].eq(10)).must_equal dm
+      end
+    end
+  end
+end