From de786cddbc3572e9d455fdb3bfa956a463a02097 Mon Sep 17 00:00:00 2001
From: David Vacca <dvacca@meta.com>
Date: Mon, 26 Jun 2023 16:58:14 -0700
Subject: [PATCH] Create test that verifies ReactHost.destroy() works as
 expected (#37983)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/37983

Create test ReactHostTest.testDestroy() that verifies ReactHost.destroy() works as expected

changelog: [internal] internal

Reviewed By: cortinico

Differential Revision: D46813611

fbshipit-source-id: 65432dae1b69412af3dec23265f57f73d49cca68
---
 .../facebook/react/bridgeless/ReactHostTest.java    | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridgeless/ReactHostTest.java b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridgeless/ReactHostTest.java
index aa520036f52..77913e95429 100644
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridgeless/ReactHostTest.java
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridgeless/ReactHostTest.java
@@ -124,6 +124,10 @@ public class ReactHostTest {
 
   @Test
   public void testStart() throws Exception {
+    statAndTestReactHost();
+  }
+
+  private void statAndTestReactHost() throws Exception {
     TaskCompletionSource<Boolean> taskCompletionSource = new TaskCompletionSource<>();
     taskCompletionSource.setResult(true);
     whenNew(TaskCompletionSource.class).withAnyArguments().thenReturn(taskCompletionSource);
@@ -137,6 +141,15 @@ public class ReactHostTest {
     verify(mMemoryPressureRouter).addMemoryPressureListener((MemoryPressureListener) any());
   }
 
+  @Test
+  public void testDestroy() throws Exception {
+    statAndTestReactHost();
+
+    waitForTaskUIThread(mReactHost.destroy("Destroying from testing infra", null));
+    assertThat(mReactHost.isInstanceInitialized()).isFalse();
+    assertThat(mReactHost.getCurrentReactContext()).isNull();
+  }
+
   private static <T> void waitForTaskUIThread(Task<T> task) throws InterruptedException {
     boolean isTaskCompleted = false;
     while (!isTaskCompleted) {