Add stand alone index and create tests

This is beneficial if you want to make sure you didn't break anything
without having to run 3k allocations 😁

Author: eileencodes

test/integration/documents_create_test.rb

@@ -0,0 +1,13 @@
+require 'test_helper'
+
+class DocumentsIntegrationTest < ActionDispatch::IntegrationTest
+  test "create" do
+    post '/documents', params: { document: { title: "New things", content: "Doing them" } }
+
+    document = Document.last
+    assert_equal 'New things', document.title
+    assert_equal 'Doing them', document.content
+  end
+end
+
+Minitest.run_one_method(DocumentsIntegrationTest, 'test_create')

test/integration/documents_index_test.rb

@@ -0,0 +1,11 @@
+require 'test_helper'
+
+class DocumentsIntegrationTest < ActionDispatch::IntegrationTest
+  # standard test
+  test "index" do
+    get '/documents'
+    assert_equal 200, response.status
+  end
+end
+
+Minitest.run_one_method(DocumentsIntegrationTest, 'test_index')