fix unit tests in DevProject (#3586)

com.unity.ml-agents/Tests/Editor/Sensor/RenderTextureSensorComponentTests.cs

 
 namespace MLAgents.Tests
 {
-
     [TestFixture]
     public class RenderTextureSensorComponentTest
     {

com.unity.ml-agents/Tests/Editor/Sensor/RenderTextureSensorTests.cs

 
 namespace MLAgents.Tests
 {
-
-    public class RenderTextureSensorTest
+    public class RenderTextureSensorTests
     {
         [Test]
         public void TestRenderTextureSensor()
                     var writeAdapter = new WriteAdapter();
                     var obs = sensor.GetObservationProto(writeAdapter);
 
-                    Assert.AreEqual((int) compression, (int) obs.CompressionType);
+                    Assert.AreEqual((int)compression, (int)obs.CompressionType);
                     var expectedShape = new[] { height, width, grayscale ? 1 : 3 };
                     Assert.AreEqual(expectedShape, obs.Shape);
                 }

DevProject/Assets/placeholder.txt

+lorem ipsum