Allow blank but not nil in validations

- The most common use case for qualified_domain_validator currently is
to allow blank ([]) but not allow nil. Modify the
qualified_domain_validator to support this use case.

1 files changed, 11 insertions, 19 deletions

diff --git a/spec/validators/qualified_domain_array_validator_spec.rb b/spec/validators/qualified_domain_array_validator_spec.rb
index a96b00bfd1d..6beb4c67f6f 100644
--- a/spec/validators/qualified_domain_array_validator_spec.rb
+++ b/spec/validators/qualified_domain_array_validator_spec.rb
@@ -19,20 +19,19 @@ describe QualifiedDomainArrayValidator do
 
   subject { validator.validate(record) }
 
-  shared_examples 'cannot be blank' do
-    it 'returns error when attribute is blank' do
-      record.domain_array = []
+  shared_examples 'can be nil' do
+    it 'allows when attribute is nil' do
+      record.domain_array = nil
 
       subject
 
-      expect(record.errors).to be_present
-      expect(record.errors.first[1]).to eq 'entries cannot be blank'
+      expect(record.errors).to be_empty
     end
   end
 
-  shared_examples 'can be nil' do
-    it 'allows when attribute is nil' do
-      record.domain_array = nil
+  shared_examples 'can be blank' do
+    it 'allows when attribute is blank' do
+      record.domain_array = []
 
       subject
 
@@ -43,7 +42,7 @@ describe QualifiedDomainArrayValidator do
   describe 'validations' do
     let(:validator) { described_class.new(attributes: [:domain_array]) }
 
-    it_behaves_like 'cannot be blank'
+    it_behaves_like 'can be blank'
 
     it 'returns error when attribute is nil' do
       record.domain_array = nil
@@ -51,6 +50,7 @@ describe QualifiedDomainArrayValidator do
       subject
 
       expect(record.errors).to be_present
+      expect(record.errors.first[1]).to eq('entries cannot be nil')
     end
 
     it 'allows when domain is valid' do
@@ -91,21 +91,13 @@ describe QualifiedDomainArrayValidator do
     let(:validator) { described_class.new(attributes: [:domain_array], allow_nil: true) }
 
     it_behaves_like 'can be nil'
-
-    it_behaves_like 'cannot be blank'
+    it_behaves_like 'can be blank'
   end
 
   context 'when allow_blank is set to true' do
     let(:validator) { described_class.new(attributes: [:domain_array], allow_blank: true) }
 
     it_behaves_like 'can be nil'
-
-    it 'allows when attribute is blank' do
-      record.domain_array = []
-
-      subject
-
-      expect(record.errors).to be_empty
-    end
+    it_behaves_like 'can be blank'
   end
 end