Add edit page for user profile

This adds a basic edit profile page. First, last and email can be
edited. Passwords can't be updated from this page yet.

app/views/users/edit.html.erb

@@ -0,0 +1,35 @@
+<div class="sign-up" id="clearance">
+  <h2>Edit Profile</h2>
+
+  <% if current_user.errors.present? %>
+    <div class="errors">
+      Please fill out all fields
+    </div>
+  <% end %>
+
+
+  <div class="form">
+    <%= form_for current_user, url: user_path, method: "put" do |form| %>
+
+      <div class="form-field">
+        <%= form.label :first_name %>
+        <%= form.text_field :first_name %>
+      </div>
+
+      <div class="form-field">
+        <%= form.label :last_name %>
+        <%= form.text_field :last_name %>
+      </div>
+
+      <div class="form-field">
+        <%= form.label :email %>
+        <%= form.text_field :email %>
+      </div>
+
+      <div class="form-field">
+        <%= form.submit %>
+      </div>
+
+    <% end %>
+  </div>
+</div>

spec/system/user_edits_profile_spec.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe "User edits their profile" do
+  context "as a signed in user" do
+    it "updates their profile" do
+      user = create(:user)
+      first_name = "new"
+      last_name = "name"
+      email = "new@example.com"
+
+      visit edit_user_path(as: user)
+      fill_in :user_first_name, with: first_name
+      fill_in :user_last_name, with: last_name
+      fill_in :user_email, with: email
+      click_on "Update User"
+
+      user.reload
+
+      expect(user.first_name).to eq first_name
+      expect(user.last_name).to eq last_name
+      expect(user.email).to eq email
+    end
+  end
+
+  context "without an authenticated session" do
+    it "redirects to the sign in page" do
+      visit edit_user_path
+
+      expect(current_path).to eq sign_in_path
+    end
+  end
+end