Add tests for AccountRelationshipsPresenter (#5805)

spec/presenters/account_relationships_presenter_spec.rb

+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe AccountRelationshipsPresenter do
+  describe '.initialize' do
+    before do
+      allow(Account).to receive(:following_map).with(account_ids, current_account_id).and_return(default_map)
+      allow(Account).to receive(:followed_by_map).with(account_ids, current_account_id).and_return(default_map)
+      allow(Account).to receive(:blocking_map).with(account_ids, current_account_id).and_return(default_map)
+      allow(Account).to receive(:muting_map).with(account_ids, current_account_id).and_return(default_map)
+      allow(Account).to receive(:requested_map).with(account_ids, current_account_id).and_return(default_map)
+      allow(Account).to receive(:domain_blocking_map).with(account_ids, current_account_id).and_return(default_map)
+    end
+
+    let(:presenter)          { AccountRelationshipsPresenter.new(account_ids, current_account_id, options) }
+    let(:current_account_id) { Fabricate(:account).id }
+    let(:account_ids)        { [Fabricate(:account).id] }
+    let(:default_map)        { { 1 => true } }
+
+    context 'options are not set' do
+      let(:options) { {} }
+
+      it 'sets default maps' do
+        expect(presenter.following).to       eq default_map
+        expect(presenter.followed_by).to     eq default_map
+        expect(presenter.blocking).to        eq default_map
+        expect(presenter.muting).to          eq default_map
+        expect(presenter.requested).to       eq default_map
+        expect(presenter.domain_blocking).to eq default_map
+      end
+    end
+
+    context 'options[:following_map] is set' do
+      let(:options) { { following_map: { 2 => true } } }
+
+      it 'sets @following merged with default_map and options[:following_map]' do
+        expect(presenter.following).to eq default_map.merge(options[:following_map])
+      end
+    end
+
+    context 'options[:followed_by_map] is set' do
+      let(:options) { { followed_by_map: { 3 => true } } }
+
+      it 'sets @followed_by merged with default_map and options[:followed_by_map]' do
+        expect(presenter.followed_by).to eq default_map.merge(options[:followed_by_map])
+      end
+    end
+
+    context 'options[:blocking_map] is set' do
+      let(:options) { { blocking_map: { 4 => true } } }
+
+      it 'sets @blocking merged with default_map and options[:blocking_map]' do
+        expect(presenter.blocking).to eq default_map.merge(options[:blocking_map])
+      end
+    end
+
+    context 'options[:muting_map] is set' do
+      let(:options) { { muting_map: { 5 => true } } }
+
+      it 'sets @muting merged with default_map and options[:muting_map]' do
+        expect(presenter.muting).to eq default_map.merge(options[:muting_map])
+      end
+    end
+
+    context 'options[:requested_map] is set' do
+      let(:options) { { requested_map: { 6 => true } } }
+
+      it 'sets @requested merged with default_map and options[:requested_map]' do
+        expect(presenter.requested).to eq default_map.merge(options[:requested_map])
+      end
+    end
+
+    context 'options[:domain_blocking_map] is set' do
+      let(:options) { { domain_blocking_map: { 7 => true } } }
+
+      it 'sets @domain_blocking merged with default_map and options[:domain_blocking_map]' do
+        expect(presenter.domain_blocking).to eq default_map.merge(options[:domain_blocking_map])
+      end
+    end
+  end
+end