Restore solidus/tax_category_deprecated warning cop

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## main (unreleased)
 
+### New features
+
+* [#25](https://github.com/solidusio/rubocop-solidus/issues/25): Add solidus/tax_category_deprecated warning cop. ([@safafa][])
+
 ## 0.2.0 (2023-11-02)
 
 ### New features
@@ -36,3 +40,4 @@
 
 - Initial release
 [@MassimilianoLattanzio]: https://github.com/MassimilianoLattanzio
+[@safafa]: https://github.com/safafa

config/default.yml

@@ -73,3 +73,9 @@ Solidus/SpreeTDeprecated:
   Enabled: true
   VersionAdded: '0.1'
   Reference: 'https://github.com/solidusio/rubocop-solidus/issues/22'
+
+Solidus/TaxCategoryDeprecated:
+  Description: 'Checks if tax_category is being used and issue a warning'
+  Enabled: true
+  VersionAdded: '<<next>>'
+  Reference: 'https://github.com/solidusio/rubocop-solidus/issues/25'

docs/cops_solidus.md

@@ -305,3 +305,25 @@ I18n.t('bar', scope: 'spree.admin.city')
 ### References
 
 * [https://github.com/solidusio/rubocop-solidus/issues/22](https://github.com/solidusio/rubocop-solidus/issues/22)
+
+## Solidus/TaxCategoryDeprecated
+
+Enabled by default | Safe | Supports autocorrection | VersionAdded | VersionChanged | Required Solidus Version
+--- | --- | --- | --- | --- | ---
+Enabled | Yes | No | <<next>> | - | 2.2
+
+This cop finds .tax_category occurrences and suggest using .tax_categories instead.
+
+### Examples
+
+```ruby
+# bad
+  model.tax_category = data
+
+# good
+  model.tax_categories = [data]
+```
+
+### References
+
+* [https://github.com/solidusio/rubocop-solidus/issues/25](https://github.com/solidusio/rubocop-solidus/issues/25)

docs/index.md

@@ -14,5 +14,6 @@ In the following sections, you will find all available cops:
 * [Solidus/SpreeIconDeprecated](cops_solidus.md#solidusspreeicondeprecated)
 * [Solidus/SpreeRefundCallPerform](cops_solidus.md#solidusspreerefundcallperform)
 * [Solidus/SpreeTDeprecated](cops_solidus.md#solidusspreetdeprecated)
+* [Solidus/TaxCategoryDeprecated](cops_solidus.md#solidustaxcategorydeprecated)
 
 <!-- END_COP_LIST -->

lib/rubocop/cop/solidus/tax_category_deprecated.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Solidus
+      # This cop finds .tax_category occurrences and suggest using .tax_categories instead.
+      #
+      # @example
+      #
+      #   # bad
+      #     model.tax_category = data
+      #
+      #   # good
+      #     model.tax_categories = [data]
+      #
+      #
+      #
+      class TaxCategoryDeprecated < Base
+        include TargetSolidusVersion
+        minimum_solidus_version 2.2
+
+        MSG = 'If you are Using Taxrate model use `.tax_categories = [data]` instead of `.tax_category = data`'
+
+        def_node_matcher :existing_tax_category?, <<~PATTERN
+          (send ... :tax_category)
+        PATTERN
+
+        def on_send(node)
+          return unless existing_tax_category?(node)
+
+          add_offense(node, severity: :warning)
+        end
+      end
+    end
+  end
+end

lib/rubocop/cop/solidus_cops.rb

@@ -13,3 +13,4 @@
 require_relative 'solidus/spree_icon_deprecated'
 require_relative 'solidus/spree_refund_call_perform'
 require_relative 'solidus/spree_t_deprecated'
+require_relative 'solidus/tax_category_deprecated'

spec/rubocop/cop/solidus/tax_category_deprecated_spec.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+RSpec.describe RuboCop::Cop::Solidus::TaxCategoryDeprecated, :config do
+  let(:config) { RuboCop::Config.new }
+  it 'registers an offense when using `tax_category`' do
+    expect_offense(<<~RUBY)
+      model.tax_category
+      ^^^^^^^^^^^^^^^^^^ Solidus/TaxCategoryDeprecated: If you are Using Taxrate model use `.tax_categories = [data]` instead of `.tax_category = data`
+    RUBY
+  end
+
+  it 'does not register an offense when using `tax_categories`' do
+    expect_no_offenses(<<~RUBY)
+      model.tax_categories
+    RUBY
+  end
+end