diff --git a/factories/users.rb b/factories/users.rb
index d50eb0e..6c98ac9 100644
--- a/factories/users.rb
+++ b/factories/users.rb
@@ -4,5 +4,6 @@ FactoryBot.define do
   factory :user do
     email { Faker::Internet.email }
     password { Faker::Internet.password }
+    password_confirmation { password }
   end
 end
diff --git a/spec/requests/users/create_spec.rb b/spec/requests/users/create_spec.rb
new file mode 100644
index 0000000..f2a0ae7
--- /dev/null
+++ b/spec/requests/users/create_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'POST /users' do
+  let(:user_attributes) { attributes_for :user }
+
+  def make_request
+    post '/users', params: { user: user_attributes }
+  end
+
+  specify do
+    expect { make_request }.to change(User, :count).from(0).to(1)
+  end
+
+  context 'after request' do
+    before { make_request }
+
+    specify do
+      expect(request).to redirect_to root_url
+    end
+
+    specify do
+      expect(User.last).to have_attributes user_attributes.merge(
+        password:              nil,
+        password_confirmation: nil,
+      )
+    end
+  end
+end
diff --git a/spec/requests/users/sign_in/create_spec.rb b/spec/requests/users/sign_in/create_spec.rb
new file mode 100644
index 0000000..0549971
--- /dev/null
+++ b/spec/requests/users/sign_in/create_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'POST /users/sign_in' do
+  let!(:user) { create :user }
+
+  let(:user_attributes) { { email: user.email, password: user.password } }
+
+  def make_request
+    post '/users/sign_in', params: { user: user_attributes }
+  end
+
+  specify do
+    expect { make_request }.not_to change(User, :count).from(1)
+  end
+
+  context 'after request' do
+    before { make_request }
+
+    specify do
+      expect(response).to redirect_to root_url
+    end
+  end
+end