Fixes OSS tests

Summary: Fixes OSS tests

Reviewed By: pentiumao

Differential Revision: D44869855

fbshipit-source-id: 1bf2d553a7d198eacad4232be687ab4f33e4fc55

litho-rendercore-testing/src/main/java/com/facebook/rendercore/testing/RenderCoreTestRule.java

@@ -26,6 +26,7 @@
 import androidx.annotation.Nullable;
 import androidx.test.core.app.ApplicationProvider;
 import com.facebook.rendercore.Host;
+import com.facebook.rendercore.MountItemsPool;
 import com.facebook.rendercore.Node;
 import com.facebook.rendercore.RenderResult;
 import com.facebook.rendercore.RenderState;
@@ -70,9 +71,9 @@ public void commitToUI(RenderTree tree, Object o) {}
   private @Nullable RenderTreeHost renderTreeHost;
   private @Nullable RenderState<?, ?> renderState;
   private @Nullable Node<?> rootNode;
+  private @Nullable RenderCoreExtension<?, ?>[] extensions;
   private int widthSpec = DEFAULT_WIDTH_SPEC;
   private int heightSpec = DEFAULT_HEIGHT_SPEC;
-  private RenderCoreExtension<?, ?>[] extensions;
 
   @Override
   public Statement apply(final Statement base, Description description) {
@@ -89,6 +90,8 @@ public void evaluate() throws Throwable {
           renderTreeHost = null;
           rootNode = null;
           extensions = null;
+          renderState = null;
+          MountItemsPool.clear();
         }
       }
     };

litho-rendercore/build.gradle

@@ -28,6 +28,18 @@ android {
 
     defaultConfig {
         minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+    }
+
+    testOptions {
+        unitTests.includeAndroidResources = true
+
+        unitTests.all {
+            // Because of native libraries loading (Yoga), we can never reuse a class loader and
+            // need to fork a new process per class.
+            forkEvery = 1
+            maxParallelForks = 4
+        }
     }
 
     buildTypes {
@@ -58,6 +70,15 @@ dependencies {
   // Android Support Library
   compileOnly deps.supportAnnotations
   implementation deps.supportCore
+
+  testImplementation deps.assertjCore
+  testImplementation deps.junit
+  testImplementation deps.robolectric
+  testImplementation deps.mockitoCore
+  testImplementation deps.mockitokotlin
+  testImplementation deps.supportAppCompat
+  testImplementation deps.supportTestCore
+  testImplementation project(":litho-rendercore-testing")
 }
 
 apply plugin: "com.vanniktech.maven.publish"

litho-rendercore/src/main/AndroidManifest.xml

@@ -17,4 +17,6 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.facebook.rendercore">
+  <uses-sdk
+      android:targetSdkVersion="33" />
 </manifest>