1 files changed, 35 insertions, 0 deletions
diff --git a/activerecord/test/cases/arel/nodes/as_test.rb b/activerecord/test/cases/arel/nodes/as_test.rb
new file mode 100644
index 0000000000..09c8aa8d62
--- /dev/null
+++ b/activerecord/test/cases/arel/nodes/as_test.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+require_relative '../helper'
+
+module Arel
+  module Nodes
+    describe 'As' do
+      describe '#as' do
+        it 'makes an AS node' do
+          attr = Table.new(:users)[:id]
+          as = attr.as(Arel.sql('foo'))
+          assert_equal attr, as.left
+          assert_equal 'foo', as.right
+        end
+
+        it 'converts right to SqlLiteral if a string' do
+          attr = Table.new(:users)[:id]
+          as = attr.as('foo')
+          assert_kind_of Arel::Nodes::SqlLiteral, as.right
+        end
+      end
+
+      describe 'equality' do
+        it 'is equal with equal ivars' do
+          array = [As.new('foo', 'bar'), As.new('foo', 'bar')]
+          assert_equal 1, array.uniq.size
+        end
+
+        it 'is not equal with different ivars' do
+          array = [As.new('foo', 'bar'), As.new('foo', 'baz')]
+          assert_equal 2, array.uniq.size
+        end
+      end
+    end
+  end
+end