Rails MiniTest 'post' method not found - ruby-on-rails

Question

I'm receiving the following error when I try to run my request specs:
POST :: /users/:id/authentications request::successful request#test_0001_Adds an authentication record to a user:
NoMethodError: undefined method `post' for #<#<Class:0x007fa607163028>:0x007fa6070012c0>
test/requests/authentications_test.rb:9:in `block (3 levels) in <main>'
Here's the test itself:
require "minitest_helper"
describe "POST :: /users/:id/authentications request" do
describe "successful request" do
it "Adds an authentication record to a user" do
user = create_user
post user_authentications_path(user)
response.status.must_equal "200"
end
end
end
Here's the minitest_helper.rb file:
ENV["RAILS_ENV"] = "test"
require File.expand_path("../../config/environment", __FILE__)
require "rails/test_help"
require "minitest/autorun"
require "minitest/rails"
require "minitest/rails/capybara"
Dir[Rails.root.join("test/support/**/*.rb")].each {|f| require f}
class ActiveSupport::TestCase
end
# database cleaner
DatabaseCleaner.strategy = :transaction
class MiniTest::Spec
before :each do
DatabaseCleaner.start
end
after :each do
DatabaseCleaner.clean
end
end
class RequestTest < MiniTest::Spec
include Rails.application.routes.url_helpers
register_spec_type(/request$/, self)
end
Relevant versions of things:
Rails: 3.2.13
minitest-rails: 0.9.2
minitest-rails-capybara: 0.9.0
It really doesn't make sense that I can't call post. It looks like every other example out the web can do it just fine.
Any help with this is greatly appreciated.

Answer 1

You have a lot going on in your test helper. It seems that you have copied several different approaches to running minitest in your rails tests. I suggest the following:
Remove the following from your test helper:
# database cleaner
DatabaseCleaner.strategy = :transaction
class MiniTest::Spec
before :each do
DatabaseCleaner.start
end
after :each do
DatabaseCleaner.clean
end
end
class RequestTest < MiniTest::Spec
include Rails.application.routes.url_helpers
register_spec_type(/request$/, self)
end
Add the following to your test helper:
class ActionDispatch::IntegrationTest
# Register "request" tests to be handled by IntegrationTest
register_spec_type(/Request( ?Test)?\z/i, self)
end