test: add flags for tests

Author: jmsjtu

packages/@lwc/integration-not-karma/configs/base.js

@@ -18,6 +18,7 @@ const env = {
         'ENGINE_SERVER',
         'FORCE_NATIVE_SHADOW_MODE_FOR_TEST',
         'NATIVE_SHADOW',
+        'DISABLE_DETACHED_REHYDRATION',
     ]),
     LWC_VERSION,
     NODE_ENV: options.NODE_ENV_FOR_TEST,
@@ -61,7 +62,10 @@ export default {
             <script type="module">
             globalThis.process = ${JSON.stringify({ env })};
             globalThis.lwcRuntimeFlags = ${JSON.stringify(
-                pluck(options, ['DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE'])
+                pluck(options, [
+                    'DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE',
+                    'DISABLE_DETACHED_REHYDRATION',
+                ])
             )};
 
             ${maybeImport('@lwc/synthetic-shadow', !options.DISABLE_SYNTHETIC)}

packages/@lwc/integration-not-karma/helpers/options.js

@@ -34,6 +34,8 @@ export const DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE = Boolean(
     process.env.DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE
 );
 
+export const DISABLE_DETACHED_REHYDRATION = Boolean(process.env.DISABLE_DETACHED_REHYDRATION);
+
 export const ENGINE_SERVER = Boolean(process.env.ENGINE_SERVER);
 
 // --- Test config --- //
@@ -62,6 +64,7 @@ export const COVERAGE_DIR_FOR_OPTIONS =
         NODE_ENV_FOR_TEST,
         DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE,
         ENGINE_SERVER,
+        DISABLE_DETACHED_REHYDRATION,
     })
         .filter(([, val]) => val)
         .map(([key, val]) => `${key}=${val}`)