path: root/activerecord/test/cases/arel/nodes/equality_test.rb

# frozen_string_literal: true

require_relative "../helper"

module Arel
  module Nodes
    describe "equality" do
      # FIXME: backwards compat
      describe "backwards compat" do
        describe "operator" do
          it "returns :==" do
            attr = Table.new(:users)[:id]
            left = attr.eq(10)
            left.operator.must_equal :==
          end
        end

        describe "operand1" do
          it "should equal left" do
            attr = Table.new(:users)[:id]
            left = attr.eq(10)
            left.left.must_equal left.operand1
          end
        end

        describe "operand2" do
          it "should equal right" do
            attr = Table.new(:users)[:id]
            left = attr.eq(10)
            left.right.must_equal left.operand2
          end
        end

        describe "to_sql" do
          it "takes an engine" do
            engine = FakeRecord::Base.new
            engine.connection.extend Module.new {
              attr_accessor :quote_count
              def quote(*args) @quote_count += 1; super; end
              def quote_column_name(*args) @quote_count += 1; super; end
              def quote_table_name(*args) @quote_count += 1; super; end
            }
            engine.connection.quote_count = 0

            attr = Table.new(:users)[:id]
            test = attr.eq(10)
            test.to_sql engine
            engine.connection.quote_count.must_equal 3
          end
        end
      end

      describe "or" do
        it "makes an OR node" do
          attr = Table.new(:users)[:id]
          left  = attr.eq(10)
          right = attr.eq(11)
          node  = left.or right
          node.expr.left.must_equal left
          node.expr.right.must_equal right
        end
      end

      describe "and" do
        it "makes and AND node" do
          attr = Table.new(:users)[:id]
          left  = attr.eq(10)
          right = attr.eq(11)
          node  = left.and right
          node.left.must_equal left
          node.right.must_equal right
        end
      end

      it "is equal with equal ivars" do
        array = [Equality.new("foo", "bar"), Equality.new("foo", "bar")]
        assert_equal 1, array.uniq.size
      end

      it "is not equal with different ivars" do
        array = [Equality.new("foo", "bar"), Equality.new("foo", "baz")]
        assert_equal 2, array.uniq.size
      end
    end
  end
end