Fix some authors validations edge cases

app/models/author.rb

@@ -36,8 +36,8 @@ class Author < ActiveRecord::Base
   #################
 
   validates :slug, uniqueness: true
-  validates :forum_name, uniqueness: true
-  validates :name, presence: true, format: { with: /[a-z]/ }
+  validates :forum_name, allow_blank: true, uniqueness: true
+  validates :name, presence: true, format: { with: /[a-z]/i }
 
   private
 

spec/models/author_spec.rb

@@ -41,6 +41,17 @@ describe Author do
       expect(build :author, forum_name: 'rsarsa').to be_invalid
     end
 
+    it 'should allow an empty #forum_name' do
+      author = build :author, forum_name: ''
+      expect(author).to be_valid
+    end
+
+    it 'should not validate uniqueness with an empty forum name' do
+      create :author, forum_name: ''
+      author = build :author, forum_name: ''
+      expect(author).to be_valid
+    end
+
     it 'should not allow an empty #name' do
       author = build :author, name: ''
       expect(author).to be_invalid
@@ -64,6 +75,12 @@ describe Author do
       expect(author).to be_valid
       expect(author.errors[:name]).to be_empty
     end
+    
+    it 'should allow a single uppercase letter' do
+      author = build :author, name: '-0-A-0-'
+      expect(author).to be_valid
+      expect(author.errors[:name]).to be_empty
+    end
   end
 
   describe 'scopes and finders' do