diff --git a/config/environments/test.rb b/config/environments/test.rb
index abda6964d9..085bb94540 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -54,5 +54,33 @@ Openfoodnetwork::Application.configure do
   # Print deprecation notices to the stderr
   # config.active_support.deprecation = :stderr
 
+  # Fail tests on deprecated code unless it's a known case to solve.
+  Rails.application.deprecators.behavior = ->(message, callstack, deprecator) do
+    allowed_warnings = [
+      # List strings here to allow matching deprecations.
+      #
+      # https://guides.rubyonrails.org/upgrading_ruby_on_rails.html#new-activesupport-cache-serialization-format
+      "config.active_support.cache_format_version",
+
+      # `Rails.application.secrets` is deprecated in favor of `Rails.application.credentials` and will be removed in Rails 7.2
+      "Rails.application.secrets",
+
+      "Passing the class as positional argument",
+
+      # Spree::Order model aliases `bill_address`, but `bill_address` is not an attribute. Starting in Rails 7.2, alias_attribute with non-attribute targets will raise. Use `alias_method :billing_address, :bill_address` or define the method manually. (called from initialize at app/models/spree/order.rb:188)
+      "alias_attribute with non-attribute targets will raise",
+
+      # Spree::CreditCard model aliases `cc_type` and has a method called `cc_type=` defined. Starting in Rails 7.2 `brand=` will not be calling `cc_type=` anymore. You may want to additionally define `brand=` to preserve the current behavior.
+      "model aliases",
+
+      # Setting action_dispatch.show_exceptions to true is deprecated. Set to :all instead.
+      # spec/requests/errors_spec.rb
+      "action_dispatch.show_exceptions",
+    ]
+    unless allowed_warnings.any? { |pattern| message.match(pattern) }
+      ActiveSupport::Deprecation::DEFAULT_BEHAVIORS[:raise].call(message, callstack, deprecator)
+    end
+  end
+
   config.active_job.queue_adapter = :test
 end
diff --git a/spec/base_spec_helper.rb b/spec/base_spec_helper.rb
index adf32656f2..29431ee0ee 100644
--- a/spec/base_spec_helper.rb
+++ b/spec/base_spec_helper.rb
@@ -68,9 +68,6 @@ InvisibleCaptcha.timestamp_enabled = false
 InvisibleCaptcha.spinner_enabled = false
 
 RSpec.configure do |config|
-  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
-  config.fixture_path = Rails.root.join('spec/fixtures').to_s
-
   # If you're not using ActiveRecord, or you'd prefer not to run each of your
   # examples within a transaction, remove the following line or assign false
   # instead of true.