require webmock and use it to stub out trefle data

spec/models/plant_spec.rb

@@ -16,8 +16,17 @@
   end
 
   describe '#trefle_data' do
-    it do
+    before(:each) do
+      stub_request(:get, "https://trefle.io/api/v1/plants/search")
+        .with(query: { q: Plant.first.name })
+        .to_return(status: 404, headers: { 'Content-Type' => 'application/json' })
+
     end
 
+    subject { Plant.first.trefle_data }
+
+    it do
+      expect(subject).to be_instance_of(Hash)
+    end
   end
 end

spec/rails_helper.rb

@@ -1,5 +1,6 @@
 # This file is copied to spec/ when you run 'rails generate rspec:install'
 require 'spec_helper'
+require 'webmock/rspec'
 ENV['RAILS_ENV'] ||= 'test'
 require_relative '../config/environment'
 # Prevent database truncation if the environment is production