🥗 Journal: Test adding Entry#summary when Writing Entries

- #10
- #2

This is a quick line-of-action end-to-end test for setting an `Entry#summary`.

spec/furniture/journal/writing_entries_system_spec.rb

@@ -0,0 +1,30 @@
+require "rails_helper"
+
+# @see https://github.com/zinc-collective/convene-journal/issues/2
+RSpec.describe "Writing Entries", type: :system do
+  let(:space) { create(:space, :with_entrance, :with_members) }
+  let(:journal) { create(:journal, room: space.entrance) }
+
+  before do
+    sign_in(space.members.first, space)
+  end
+
+  it "saves the headline, summary and body" do # rubocop:disable RSpec/ExampleLength
+    visit(polymorphic_path(journal.location(:new, child: :entry)))
+
+    body = 1000.times.map { Faker::Books::Dune.quote }.join("\n\n")
+    fill_in("Headline", with: "1000 Dune Quotes")
+    fill_in("Body", with: body)
+    summary = %(
+      So you thought you wanted 1000 Dune Quotes?
+      Well, you were wrong. But here they are anyway!
+    )
+    fill_in("Summary", with: summary)
+
+    click_button("Create")
+    entry = journal.entries.last
+    expect(entry.headline).to eq("1000 Dune Quotes")
+    expect(entry.body).to eq(body)
+    expect(entry.summary).to eq(summary)
+  end
+end