Implement equality for `BindParam`

It is impossible to test equality of things constructing trees with bind
params otherwise.

1 files changed, 15 insertions, 0 deletions

diff --git a/test/nodes/test_bind_param.rb b/test/nodes/test_bind_param.rb
new file mode 100644
index 0000000000..ea008f4c99
--- /dev/null
+++ b/test/nodes/test_bind_param.rb
@@ -0,0 +1,15 @@
+require 'helper'
+
+module Arel
+  module Nodes
+    describe 'BindParam' do
+      it 'is equal to other bind params' do
+        BindParam.new.must_equal(BindParam.new)
+      end
+
+      it 'is not equal to other nodes' do
+        BindParam.new.wont_equal(Node.new)
+      end
+    end
+  end
+end