Fix google translate and add specs

CHANGELOG.md

@@ -1,6 +1,7 @@
 # CHANGELOG
 
 ### Unreleased - [View Diff](https://github.com/westonganger/rails_i18n_manager/compare/v1.0.0...master)
+- [#11](https://github.com/westonganger/rails_i18n_manager/pull/11) - Fix google translate and add specs
 - [#10](https://github.com/westonganger/rails_i18n_manager/pull/10) - Add missing pagination links to index pages
 
 ### v1.0.0 - [View Diff](https://github.com/westonganger/rails_i18n_manager/compare/9c8305c...v1.0.0)

app/controllers/rails_i18n_manager/translations_controller.rb

@@ -142,7 +142,7 @@ def translate_missing
         locales = (app_locales || key_record.translation_app.additional_locales_array)
 
         ### Filter to just google translate supported languages
-        locales = locales.intersection(GoogleTranslate.supported_locales)
+        locales = locales.intersection(GoogleTranslate::SUPPORTED_LOCALES)
 
         default_translation_text = key_record.default_translation
 

app/lib/rails_i18n_manager/google_translate.rb

@@ -4,69 +4,31 @@ module GoogleTranslate
     def self.translate(text, from:, to:)
       api_key = RailsI18nManager.config.google_translate_api_key
 
-      if !supported_locales.include?(to.to_s) || Rails.env.test? || (api_key.blank? && Rails.env.development?)
+      if !SUPPORTED_LOCALES.include?(to.to_s) || Rails.env.test? || (api_key.blank? && Rails.env.development?)
         return false
       end
 
       if text.include?("<") && text.include?(">")
         ### Dont translate any HTML strings
-        return nil
+        return false
       end
 
-      EasyTranslate.translate(text, from: from, to: to, key: api_key)
-
-      if translation
-        str = translation.to_s
-
-        if str.present?
-          ### Replace single quote html entity with single quote character
-          str = str.gsub("&#39;", "'")
+      translated_text = EasyTranslate.translate(text, from: from, to: to, key: api_key)
 
-          if to.to_s == "es"
-            str = str.gsub("% {", " %{").strip
-          end
+      if translated_text.present?
+        ### Replace single quote html entity with single quote character
+        translated_text = translated_text.gsub("&#39;", "'")
 
-          return str
+        if to.to_s == "es"
+          translated_text = translated_text.gsub("% {", " %{").strip
         end
+
+        return translated_text
       end
     end
 
     ### List retrieved from Google Translate (2022)
-    @@supported_locales = ["af", "am", "ar", "az", "be", "bg", "bn", "bs", "ca", "ceb", "co", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fa", "fi", "fr", "fy", "ga", "gd", "gl", "gu", "ha", "haw", "he", "hi", "hmn", "hr", "ht", "hu", "hy", "id", "ig", "is", "it", "iw", "ja", "jw", "ka", "kk", "km", "kn", "ko", "ku", "ky", "la", "lb", "lo", "lt", "lv", "mg", "mi", "mk", "ml", "mn", "mr", "ms", "mt", "my", "ne", "nl", "no", "ny", "or", "pa", "pl", "ps", "pt", "ro", "ru", "rw", "sd", "si", "sk", "sl", "sm", "sn", "so", "sq", "sr", "st", "su", "sv", "sw", "ta", "te", "tg", "th", "tk", "tl", "tr", "tt", "ug", "uk", "ur", "uz", "vi", "xh", "yi", "yo", "zh", "zh-CN", "zh-TW", "zu"].freeze
-    mattr_reader :supported_locales
-
-    ### FOR official client
-    # require "google/cloud/translate/v2" ### Offical Google Translate with API Key
-    # def self.client
-    #   @@client ||= begin
-    #     api_key = RailsI18nManager.config.google_translate_api_key
-    #     if Rails.env.test? || (api_key.blank? && Rails.env.development?)
-    #       ### Skip Client
-    #       nil
-    #     else
-    #       Google::Cloud::Translate::V2.new(key: api_key)
-    #     end
-    #   end
-    # end
-    # def self.supported_locales
-    #   @@suported_locales ||= begin
-    #     if client
-    #       @@supported_locales = client.languages.map{|x| x.code}
-    #     else
-    #       []
-    #     end
-    #   end
-    # end
-    # def self.translate(text, from:, to:)
-    #   if client
-    #    begin
-    #       translation = client.translate(text, from: from, to: to)
-    #     rescue Google::Cloud::InvalidArgumentError
-    #       ### Error usually caused by an unsupported locale
-    #       return nil
-    #     end
-    #   end
-    # end
+    SUPPORTED_LOCALES = ["af", "am", "ar", "az", "be", "bg", "bn", "bs", "ca", "ceb", "co", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fa", "fi", "fr", "fy", "ga", "gd", "gl", "gu", "ha", "haw", "he", "hi", "hmn", "hr", "ht", "hu", "hy", "id", "ig", "is", "it", "iw", "ja", "jw", "ka", "kk", "km", "kn", "ko", "ku", "ky", "la", "lb", "lo", "lt", "lv", "mg", "mi", "mk", "ml", "mn", "mr", "ms", "mt", "my", "ne", "nl", "no", "ny", "or", "pa", "pl", "ps", "pt", "ro", "ru", "rw", "sd", "si", "sk", "sl", "sm", "sn", "so", "sq", "sr", "st", "su", "sv", "sw", "ta", "te", "tg", "th", "tk", "tl", "tr", "tt", "ug", "uk", "ur", "uz", "vi", "xh", "yi", "yo", "zh", "zh-CN", "zh-TW", "zu"].freeze
 
   end
 end

lib/rails_i18n_manager/engine.rb

@@ -4,6 +4,7 @@
 require "zip"
 require "activerecord-import"
 require "csv"
+require "easy_translate"
 
 module RailsI18nManager
   class Engine < ::Rails::Engine

spec/unit/google_translate_spec.rb

@@ -0,0 +1,55 @@
+require 'spec_helper'
+
+RSpec.describe RailsI18nManager::GoogleTranslate, type: :model do
+
+  before do
+    allow(Rails.env).to receive(:test?).and_return(false)
+    allow(RailsI18nManager.config).to receive(:google_translate_api_key).and_return("some-api-key")
+  end
+
+  context "translate" do
+    it "returns false for unsupported locales" do
+      expect(RailsI18nManager::GoogleTranslate.translate("foo", from: "bar", to: "baz")).to eq(false)
+    end
+
+    it "returns false in test environment" do
+      allow(Rails.env).to receive(:test?).and_return(true)
+      expect(RailsI18nManager::GoogleTranslate.translate("foo", from: "en", to: "es")).to eq(false)
+    end
+
+    it "returns false in development environment if api key is missing" do
+      allow(RailsI18nManager.config).to receive(:google_translate_api_key).and_return(nil)
+      allow(Rails.env).to receive(:development?).and_return(true)
+      expect(RailsI18nManager::GoogleTranslate.translate("foo", from: "en", to: "es")).to eq(false)
+    end
+
+    it "returns false if HTML string provided" do
+      expect(RailsI18nManager::GoogleTranslate.translate("<foo>", from: "en", to: "es")).to eq(false)
+
+      allow(EasyTranslate).to receive(:translate).and_return("foo")
+      expect(RailsI18nManager::GoogleTranslate.translate("<foo", from: "en", to: "es")).to eq("foo")
+      expect(RailsI18nManager::GoogleTranslate.translate("foo>", from: "en", to: "es")).to eq("foo")
+    end
+
+    it "replaces single quote HTML entities with actual single quotes" do
+      allow(EasyTranslate).to receive(:translate).and_return("&#39;foo&#39;")
+      expect(RailsI18nManager::GoogleTranslate.translate("unrelated", from: "en", to: "es")).to eq("'foo'")
+    end
+
+    it "replaces '% {' with ' %{' for es locale" do
+      allow(EasyTranslate).to receive(:translate).and_return("% {foo")
+      expect(RailsI18nManager::GoogleTranslate.translate("unrelated", from: "en", to: "es")).to eq("%{foo")
+    end
+
+    it "returns nil if text was not able to be translated" do
+      allow(EasyTranslate).to receive(:translate).and_return(nil)
+      expect(RailsI18nManager::GoogleTranslate.translate("unrelated", from: "en", to: "es")).to eq(nil)
+    end
+
+    it "returns translated text" do
+      allow(EasyTranslate).to receive(:translate).and_return("bonjour")
+      expect(RailsI18nManager::GoogleTranslate.translate("hello", from: "en", to: "fr")).to eq("bonjour")
+    end
+  end
+
+end