Add PostStatus model

spec/factories/post_statuses.rb

@@ -0,0 +1,6 @@
+FactoryBot.define do
+  factory :post_status do
+    sequence(:name) { |n| "Post Status #{n}" }
+    color { "#ffffff" }
+  end
+end

spec/models/post_status_spec.rb

@@ -0,0 +1,37 @@
+require 'rails_helper'
+
+RSpec.describe PostStatus, type: :model do
+  let(:post_status) { FactoryBot.create(:post_status) }
+
+  it 'must have a name' do
+    emptyname = FactoryBot.build(:post_status, name: "")
+    nilname = FactoryBot.build(:post_status, name: nil)
+
+    expect(emptyname.valid?).to be_falsy
+    expect(nilname.valid?).to be_falsy
+    expect(post_status.valid?).to be_truthy
+  end
+
+  it 'has a unique name' do
+    post_status2 = FactoryBot.build(:post_status, name: post_status.name)
+    
+    expect(post_status2.valid?).to be_falsy
+    expect(post_status.valid?).to be_truthy
+  end
+
+  it 'has a valid hex color' do
+    nilcolor = FactoryBot.build(:post_status, color: nil)
+    emptycolor = FactoryBot.build(:post_status, color: "")
+    invalidcolor = FactoryBot.build(:post_status, color: "ffffff")
+    invalidcolor2 = FactoryBot.build(:post_status, color: "#ffff")
+    validcolor = FactoryBot.build(:post_status, color: "#fff")
+    validcolor2 = FactoryBot.build(:post_status, color: "#ffffff")
+
+    expect(nilcolor.valid?).to be_falsy
+    expect(emptycolor.valid?).to be_falsy
+    expect(invalidcolor.valid?).to be_falsy
+    expect(invalidcolor2.valid?).to be_falsy
+    expect(validcolor.valid?).to be_truthy
+    expect(validcolor2.valid?).to be_truthy
+  end
+end