Merge Arel into Active Record

1 files changed, 64 insertions, 0 deletions

diff --git a/activerecord/test/cases/arel/crud_test.rb b/activerecord/test/cases/arel/crud_test.rb
new file mode 100644
index 0000000000..38a956b9dd
--- /dev/null
+++ b/activerecord/test/cases/arel/crud_test.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+require_relative 'helper'
+
+module Arel
+  class FakeCrudder < SelectManager
+    class FakeEngine
+      attr_reader :calls, :connection_pool, :spec, :config
+
+      def initialize
+        @calls = []
+        @connection_pool = self
+        @spec = self
+        @config =  { :adapter => 'sqlite3' }
+      end
+
+      def connection; self end
+
+      def method_missing name, *args
+        @calls << [name, args]
+      end
+    end
+
+    include Crud
+
+    attr_reader :engine
+    attr_accessor :ctx
+
+    def initialize engine = FakeEngine.new
+      super
+    end
+  end
+
+  describe 'crud' do
+    describe 'insert' do
+      it 'should call insert on the connection' do
+        table = Table.new :users
+        fc = FakeCrudder.new
+        fc.from table
+        im = fc.compile_insert [[table[:id], 'foo']]
+        assert_instance_of Arel::InsertManager, im
+      end
+    end
+
+    describe 'update' do
+      it 'should call update on the connection' do
+        table = Table.new :users
+        fc = FakeCrudder.new
+        fc.from table
+        stmt = fc.compile_update [[table[:id], 'foo']], Arel::Attributes::Attribute.new(table, 'id')
+        assert_instance_of Arel::UpdateManager, stmt
+      end
+    end
+
+    describe 'delete' do
+      it 'should call delete on the connection' do
+        table = Table.new :users
+        fc = FakeCrudder.new
+        fc.from table
+        stmt = fc.compile_delete
+        assert_instance_of Arel::DeleteManager, stmt
+      end
+    end
+  end
+end