Allow non-string types for applicant attributes

lib/proofer/base.rb

@@ -93,7 +93,7 @@ def proofer
     end
 
     def blank?(val)
-      !val || val.empty?
+      !val || val.to_s.empty?
     end
   end
 end

lib/proofer/version.rb

@@ -1,3 +1,3 @@
 module Proofer
-  VERSION = '2.7.1'.freeze
+  VERSION = '2.8.0'.freeze
 end

spec/lib/proofer/base_spec.rb

@@ -99,7 +99,7 @@ def hello(applicant, results)
 
   describe '#validate_attributes' do
     let(:required_attributes) { %i[first_name last_name] }
-    let(:optional_attributes) { %i[ssn] }
+    let(:optional_attributes) { %i[ssn some_boolean_feature] }
 
     before do
       impl.required_attributes(*required_attributes)
@@ -132,6 +132,14 @@ def hello(applicant, results)
         expect { subject }.not_to raise_exception
       end
     end
+
+    context 'when optional attributes are booleans' do
+      let(:applicant) { { first_name: 'Homer', last_name: 'Simpson', some_boolean_feature: true } }
+
+      it 'does not raise' do
+        expect { subject }.not_to raise_exception
+      end
+    end
   end
 
   describe '#proof' do