Add tests to RubyLLM::Chat (instead of RubyLLM::ActiveRecord::ActsAs); Update capabilities

Author: arnodirlam

docs/index.md

@@ -95,7 +95,7 @@ RubyLLM gives you one beautiful API for all of them. Same interface whether you'
 
 ```ruby
 # Just ask questions
-chat = RubyLLM.chat
+chat = RubyLLM.chat(model: "gemini-2.0-flash")
 chat.ask "What's the best way to learn Ruby?"
 ```
 

lib/ruby_llm/providers/gemini/capabilities.rb

@@ -214,6 +214,7 @@ def modalities_for(model_id)
 
           if supports_vision?(model_id)
             modalities[:input] << 'image'
+            modalities[:input] << 'video'
             modalities[:input] << 'pdf'
           end
 

spec/fixtures/vcr_cassettes/chat_video_models_gemini_gemini-2_0-flash_can_understand_local_videos.yml

@@ -89,9 +89,9 @@ def uploaded_file(path, type)
       expect(attachment.type).to eq(:image)
     end
 
-    it 'handles videos' do # rubocop:disable RSpec/ExampleLength
+    it 'handles videos' do
       video_path = File.expand_path('../../fixtures/ruby.mp4', __dir__)
-      chat = Chat.create!(model_id: model)
+      chat = Chat.create!(model: model)
       message = chat.messages.create!(role: 'user', content: 'Video test')
 
       message.attachments.attach(

spec/fixtures/vcr_cassettes/chat_video_models_gemini_gemini-2_0-flash_can_understand_remote_videos_without_extension.yml

@@ -6,12 +6,14 @@
   include_context 'with configured RubyLLM'
 
   let(:image_path) { File.expand_path('../fixtures/ruby.png', __dir__) }
+  let(:video_path) { File.expand_path('../fixtures/ruby.mp4', __dir__) }
   let(:audio_path) { File.expand_path('../fixtures/ruby.wav', __dir__) }
   let(:mp3_path) { File.expand_path('../fixtures/ruby.mp3', __dir__) }
   let(:pdf_path) { File.expand_path('../fixtures/sample.pdf', __dir__) }
   let(:text_path) { File.expand_path('../fixtures/ruby.txt', __dir__) }
   let(:xml_path) { File.expand_path('../fixtures/ruby.xml', __dir__) }
   let(:image_url) { 'https://upload.wikimedia.org/wikipedia/commons/f/f1/Ruby_logo.png' }
+  let(:video_url) { 'https://filesamples.com/samples/video/mp4/sample_640x360.mp4' }
   let(:audio_url) { 'https://commons.wikimedia.org/wiki/File:LL-Q1860_(eng)-AcpoKrane-ruby.wav' }
   let(:pdf_url) { 'https://pdfobject.com/pdf/sample.pdf' }
   let(:text_url) { 'https://www.ruby-lang.org/en/about/license.txt' }
@@ -96,6 +98,35 @@
     end
   end
 
+  describe 'video models' do # rubocop:disable RSpec/MultipleMemoizedHelpers
+    VIDEO_MODELS.each do |model_info|
+      provider = model_info[:provider]
+      model = model_info[:model]
+
+      it "#{provider}/#{model} can understand local videos" do # rubocop:disable RSpec/MultipleExpectations,RSpec/ExampleLength
+        chat = RubyLLM.chat(model: model, provider: provider)
+        response = chat.ask('What do you see in this video?', with: { video: video_path })
+
+        expect(response.content).to be_present
+        expect(response.content).not_to include('RubyLLM::Content')
+        expect(chat.messages.first.content).to be_a(RubyLLM::Content)
+        expect(chat.messages.first.content.attachments.first.filename).to eq('ruby.mp4')
+        expect(chat.messages.first.content.attachments.first.mime_type).to eq('video/mp4')
+      end
+
+      it "#{provider}/#{model} can understand remote videos without extension" do # rubocop:disable RSpec/MultipleExpectations,RSpec/ExampleLength
+        chat = RubyLLM.chat(model: model, provider: provider)
+        response = chat.ask('What do you see in this video?', with: video_url)
+
+        expect(response.content).to be_present
+        expect(response.content).not_to include('RubyLLM::Content')
+        expect(chat.messages.first.content).to be_a(RubyLLM::Content)
+        expect(chat.messages.first.content.attachments.first.filename).to eq('sample_640x360.mp4')
+        expect(chat.messages.first.content.attachments.first.mime_type).to eq('video/mp4')
+      end
+    end
+  end
+
   describe 'audio models' do # rubocop:disable RSpec/MultipleMemoizedHelpers
     AUDIO_MODELS.each do |model_info|
       model = model_info[:model]