Add tests for Post component

spec/system/post_spec.rb

@@ -0,0 +1,40 @@
+require 'rails_helper'
+
+feature 'post', type: :system, js: true do
+  let(:post) { FactoryBot.create(:post) }
+  let(:mod) { FactoryBot.create(:moderator) }
+
+  it 'renders post title, description and status' do
+    visit post_path(post)
+
+    expect(page).to have_content(/#{post.title}/i)
+    expect(page).to have_content(/#{post.description}/i)
+    expect(page).to have_content(/#{post.post_status.name}/i)
+  end
+
+  it 'enables admins and mods to edit post status' do
+    mod.confirm
+    sign_in mod
+    post_status1 = FactoryBot.create(:post_status)
+
+    visit post_path(post)
+
+    expect(post.post_status_id).not_to eq(post_status1.id)
+    expect(page).to have_select 'Status:',
+      selected: post.post_status.name,
+      options: [post.post_status.name, post_status1.name, 'None']
+
+    select post_status1.name, from: 'Status:'
+    expect(page).to have_select 'Status:', selected: post_status1.name
+    expect(post.reload.post_status_id).to eq(post_status1.id)
+
+    select 'None', from: 'Status:'
+    expect(page).to have_select 'Status:', selected: 'None'
+    expect(post.reload.post_status_id).to be_nil
+  end
+
+  it 'does not show status selection to users' do
+    visit post_path(post)
+    expect(page).to have_no_select 'Status:'
+  end
+end