Add default for scores.score

db/migrate/0000_create_schema.rb

@@ -92,7 +92,7 @@ class CreateSchema < ActiveRecord::Migration[5.2]
     end
 
     create_table :scores do |t|
-      t.integer :score, null: false
+      t.integer :score, default: 0
 
       t.belongs_to :match, index: true, null: false, foreign_key: { on_delete: :cascade }
       t.belongs_to :team, index: true, null: false, foreign_key: { on_delete: :cascade }

spec/models/score_spec.rb

@@ -3,10 +3,6 @@
 require 'rails_helper'
 
 RSpec.describe Score, type: :model do
-  describe 'validation' do
-    it { should validate_presence_of :score }
-  end
-
   describe 'association' do
     it { should belong_to :match }
     it { should belong_to :team }