Add tests for no_speech_prob

Author: KitaitiMakoto

bindings/ruby/tests/test_segment.rb

@@ -32,6 +32,14 @@ def test_end_time
     end
   end
 
+  def test_no_speech_prob
+    no_speech_prob = nil
+    whisper.each_segment do |segment|
+      no_speech_prob = segment.no_speech_prob
+    end
+    assert no_speech_prob > 0.0
+  end
+
   def test_on_new_segment
     params = Whisper::Params.new
     seg = nil

bindings/ruby/tests/test_whisper.rb

@@ -55,6 +55,12 @@ def test_full_get_segment_speaker_turn_next
     def test_full_get_segment_text
       assert_match /ask not what your country can do for you, ask what you can do for your country/, whisper.full_get_segment_text(0)
     end
+
+    def test_full_get_segment_no_speech_prob
+      prob = whisper.full_get_segment_no_speech_prob(0)
+      assert prob > 0.0
+      assert prob < 1.0
+    end
   end
 
   def test_lang_max_id