fix: don't blow up when there is a term inside an each like

This will probably break something else, as I can't remember why the unpack_regexps was in there in the first place.

Closes: pact-foundation/pact-ruby-standalone#47

Author: bethesque

lib/pact/matchers/matchers.rb

@@ -120,7 +120,11 @@ def actual_array_diff expected, actual, options
     def array_like_diff array_like, actual, options
       if actual.is_a? Array
         expected_size = [array_like.min, actual.size].max
-        expected_array = expected_size.times.collect{ Pact::Term.unpack_regexps(array_like.contents) }
+        # I know changing this is going to break something, but I don't know what it is, as there's no
+        # test that fails when I make this change. I know the unpack regexps was there for a reason however.
+        # Guess we'll have to change it and see!
+        # expected_array = expected_size.times.collect{ Pact::Term.unpack_regexps(array_like.contents) }
+        expected_array = expected_size.times.collect{ array_like.contents }
         actual_array_diff expected_array, actual, options.merge(:type => true)
       else
         Difference.new array_like.generate, actual, type_difference_message(array_like.generate, actual)

spec/lib/pact/matchers/matchers_spec.rb

@@ -569,6 +569,24 @@ module Pact::Matchers
           expect(diff(subject, actual)).to eq({})
         end
       end
+
+      context "when there is a term inside an each like and the expected array is empty" do
+        subject do
+          {
+            data: Pact.each_like({ href: Pact.term('https://example.com/path/to/2019document.pdf', /http.*/ ) })
+          }
+        end
+
+        let(:actual) { { data: [] } }
+
+        it 'should not blow up' do
+          expect(diff(subject, actual)).to eq ({
+            data: [
+              Difference.new({ href: 'https://example.com/path/to/2019document.pdf' }, Pact::IndexNotFound.new)
+            ]
+          })
+        end
+      end
     end
   end
 end