Add type-test for View imperative handle methods

packages/react-native/__typetests__/component-refs.tsx

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import * as React from 'react';
+import {View} from 'react-native';
+
+// A ref to a host component resolves to its imperative handle, which exposes
+// the native measurement and mutation methods. `React.ComponentRef<typeof View>`
+// is the pattern that resolves to that handle under both the legacy and the
+// strict public types; the `View` component type itself is not the handle.
+type ViewHandle = React.ComponentRef<typeof View>;
+
+export function ViewImperativeHandle() {
+  const viewRef = React.useRef<ViewHandle>(null);
+  const targetRef = React.useRef<ViewHandle>(null);
+
+  const measure = () => {
+    const view = viewRef.current;
+    const target = targetRef.current;
+    if (view == null || target == null) {
+      return;
+    }
+
+    view.measure(
+      (
+        x: number,
+        y: number,
+        width: number,
+        height: number,
+        pageX: number,
+        pageY: number,
+      ) => {},
+    );
+
+    view.measureInWindow(
+      (x: number, y: number, width: number, height: number) => {},
+    );
+
+    view.measureLayout(
+      target,
+      (left: number, top: number, width: number, height: number) => {},
+      () => {},
+    );
+
+    view.setNativeProps({});
+  };
+
+  return (
+    <View ref={viewRef}>
+      <View ref={targetRef} />
+    </View>
+  );
+}