From c22abda79b7f0fbee5f0ef0e9648d52d7d483902 Mon Sep 17 00:00:00 2001
From: Shahbaz Javeed <sjaveed@gmail.com>
Date: Thu, 10 Dec 2015 16:50:28 -0500
Subject: * Support for bitwise operations as infix operators.  Tests included.

*** Individual commit messages included below ***
* Preliminary support for bitwise operations as infix operators.  Tests to follow.

* Added bitwise xor, shift left and shift right operators

* Fixed the BitwiseOr class so it uses the :| operator instead of :&
* All the methods for the bitwise operators in the Arel::Math module now wrap them up in Arel::Nodes::Grouping so the operation becomes isolated like addition and subtraction
* Preliminary set of tests for the new operators

* Updated README with examples of bitwise operations

* Added a new UnaryOperation class which is a riff on the InfixOperation class
* Added tests for UnaryOperation (inspired by InfixOperation tests)
* Added the bitwise not (~) operator as a UnaryOperation
* Added tests for the bitwise not operator

* Added documentation for the bitwise not operator

* Updated gemspec using `rake arel.gemspec`
---
 test/nodes/test_unary_operation.rb | 39 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 test/nodes/test_unary_operation.rb

(limited to 'test/nodes')

diff --git a/test/nodes/test_unary_operation.rb b/test/nodes/test_unary_operation.rb
new file mode 100644
index 0000000000..d89c10b431
--- /dev/null
+++ b/test/nodes/test_unary_operation.rb
@@ -0,0 +1,39 @@
+require 'helper'
+
+module Arel
+  module Nodes
+    class TestUnaryOperation < Minitest::Test
+      def test_construct
+        operation = UnaryOperation.new :-, 1
+        assert_equal :-, operation.operator
+        assert_equal 1, operation.expr
+      end
+
+      def test_operation_alias
+        operation = UnaryOperation.new :-, 1
+        aliaz = operation.as('zomg')
+        assert_kind_of As, aliaz
+        assert_equal operation, aliaz.left
+        assert_equal 'zomg', aliaz.right
+      end
+
+      def test_operation_ordering
+        operation = UnaryOperation.new :-, 1
+        ordering = operation.desc
+        assert_kind_of Descending, ordering
+        assert_equal operation, ordering.expr
+        assert ordering.descending?
+      end
+
+      def test_equality_with_same_ivars
+        array = [UnaryOperation.new(:-, 1), UnaryOperation.new(:-, 1)]
+        assert_equal 1, array.uniq.size
+      end
+
+      def test_inequality_with_different_ivars
+        array = [UnaryOperation.new(:-, 1), UnaryOperation.new(:-, 2)]
+        assert_equal 2, array.uniq.size
+      end
+    end
+  end
+end
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