Add coverage for ReportFilter and AccountFilter (#3236)

app/models/account.rb

@@ -89,6 +89,8 @@ class Account < ApplicationRecord
   scope :recent, -> { reorder(id: :desc) }
   scope :alphabetic, -> { order(domain: :asc, username: :asc) }
   scope :by_domain_accounts, -> { group(:domain).select(:domain, 'COUNT(*) AS accounts_count').order('accounts_count desc') }
+  scope :matches_username, ->(value) { where(arel_table[:username].matches("#{value}%")) }
+  scope :matches_display_name, ->(value) { where(arel_table[:display_name].matches("#{value}%")) }
 
   delegate :email,
            :current_sign_in_ip,

app/models/account_filter.rb

@@ -18,8 +18,6 @@ class AccountFilter
   private
 
   def scope_for(key, value)
-    accounts = Account.arel_table
-
     case key.to_s
     when 'local'
       Account.local
@@ -34,21 +32,26 @@ class AccountFilter
     when 'suspended'
       Account.suspended
     when 'username'
-      Account.where(accounts[:username].matches("#{value}%"))
+      Account.matches_username(value)
     when 'display_name'
-      Account.where(accounts[:display_name].matches("#{value}%"))
+      Account.matches_display_name(value)
     when 'email'
-      users = User.arel_table
-      Account.joins(:user).merge(User.where(users[:email].matches("#{value}%")))
+      accounts_with_users.merge User.matches_email(value)
     when 'ip'
-      return Account.default_scoped unless valid_ip?(value)
-      matches_ip = User.where(current_sign_in_ip: value).or(User.where(last_sign_in_ip: value))
-      Account.joins(:user).merge(matches_ip)
+      if valid_ip?(value)
+        accounts_with_users.merge User.with_recent_ip_address(value)
+      else
+        Account.default_scoped
+      end
     else
       raise "Unknown filter: #{key}"
     end
   end
 
+  def accounts_with_users
+    Account.joins(:user)
+  end
+
   def valid_ip?(value)
     IPAddr.new(value)
     true

app/models/user.rb

@@ -53,6 +53,8 @@ class User < ApplicationRecord
   scope :admins,    -> { where(admin: true) }
   scope :confirmed, -> { where.not(confirmed_at: nil) }
   scope :inactive, -> { where(arel_table[:current_sign_in_at].lt(ACTIVE_DURATION.ago)) }
+  scope :matches_email, ->(value) { where(arel_table[:email].matches("#{value}%")) }
+  scope :with_recent_ip_address, ->(value) { where(arel_table[:current_sign_in_ip].eq(value).or(arel_table[:last_sign_in_ip].eq(value))) }
 
   before_validation :sanitize_languages