Rspec fails when testing view edit form

Question

I'm working on my first rails app here and two of the generated tests don't pass:

Failures:

  1) gardens/edit renders the edit garden form
     Failure/Error: assert_select "inputgarden_name[name=?]", "garden[name]"

     Minitest::Assertion:
       Expected at least 1 element matching "inputgarden_name[name="garden[name]"]", found 0..
       Expected 0 to be >= 1.
     # ./spec/views/gardens/edit.html.haml_spec.rb:20:in `block (3 levels) in <top (required)>'
     # ./spec/views/gardens/edit.html.haml_spec.rb:18:in `block (2 levels) in <top (required)>'

  2) gardens/new renders new garden form
     Failure/Error: assert_select "inputgarden_name[name=?]", "garden[name]"

     Minitest::Assertion:
       Expected at least 1 element matching "inputgarden_name[name="garden[name]"]", found 0..
       Expected 0 to be >= 1.
     # ./spec/views/gardens/new.html.haml_spec.rb:19:in `block (3 levels) in <top (required)>'
     # ./spec/views/gardens/new.html.haml_spec.rb:17:in `block (2 levels) in <top (required)>'

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34 examples, 2 failures, 17 pending

Failed examples:

rspec ./spec/views/gardens/edit.html.haml_spec.rb:15 # gardens/edit renders the edit garden form
rspec ./spec/views/gardens/new.html.haml_spec.rb:14 # gardens/new renders new garden form

I'm not sure why this is. When I look at the test, I'm kind of surprised the path doesn't contain an id to edit (something like /gardens/#{@garden.id}/edit). When I try to edit the test accordingly rspec fails to run telling me that @garden isn't instantiated yet.

spec/views/gardens/edit.html.haml_spec.rb:

  1 require 'rails_helper'
  2
  3
  4 RSpec.describe "gardens/edit", type: :view do
  5   before(:each) do
  6     @garden = assign(:garden, Garden.create!(
  7       :name => "MyString",
  8       :square_feet => 1,
  9       :zone => 1,
 10       :garden_type => "MyString",
 11       :user => nil
 12     ))
 13   end
 14
 15   it "renders the edit garden form" do
 16     render
 17
 18      assert_select "form[action=?][method=?]", garden_path(@garden), "post" do
 19 
 20        assert_select "input#garden_name[name=?]", "garden[name]"
 21 
 22        assert_select "input#garden_square_feet[name=?]", "garden[square_feet]"
 23 
 24        assert_select "input#garden_zone[name=?]", "garden[zone]"
 25 
 26        assert_select "input#garden_garden_type[name=?]", "garden[garden_type]"
 27 
 28        assert_select "input#garden_user_id[name=?]", "garden[user_id]"
 29      end
 30   end
 31 end

What do I have to do to make these tests pass?

EDIT: here's the edit views

/app/views/gardens/edit.html.haml:

%h1 Editing garden

= render 'form'

= link_to 'Show', @garden
\|
= link_to 'Back', gardens_path

/app/views/gardens/_form.html.haml:

= simple_form_for(@garden) do |f|
  = f.error_notification

  .form-inputs
    = f.input :name
    = f.input :square_feet
    = f.input :zone
    = f.input :garden_type
    = f.association :user

  .form-actions
    = f.button :submit

Answer 1

The error message that you included indicates that an html element for the given matcher was not found.

For associations Simple Form gem generates select elements instead of input elements by default. https://github.com/plataformatec/simple_form#associations

You need to change the last assertion to: assert_select "select#garden_user_id[name=?]", "garden[user_id]"

I am guessing the issue is occurring in the spec for the new view?