1 files changed, 84 insertions, 0 deletions
diff --git a/remote/test/puppeteer/test-d/JSHandle.test-d.ts b/remote/test/puppeteer/test-d/JSHandle.test-d.ts
new file mode 100644
index 0000000000..fa7348d28e
--- /dev/null
+++ b/remote/test/puppeteer/test-d/JSHandle.test-d.ts
@@ -0,0 +1,84 @@
+import {expectNotAssignable, expectNotType, expectType} from 'tsd';
+
+import type {ElementHandle, JSHandle} from 'puppeteer';
+
+declare const handle: JSHandle;
+
+{
+  expectType<unknown>(await handle.evaluate('document'));
+  expectType<number>(
+    await handle.evaluate(() => {
+      return 1;
+    })
+  );
+  expectType<HTMLElement>(
+    await handle.evaluate(() => {
+      return document.body;
+    })
+  );
+  expectType<string>(
+    await handle.evaluate(() => {
+      return '';
+    })
+  );
+  expectType<string>(
+    await handle.evaluate((value, str) => {
+      expectNotAssignable<never>(value);
+      expectType<string>(str);
+      return '';
+    }, '')
+  );
+}
+
+{
+  expectType<JSHandle>(await handle.evaluateHandle('document'));
+  expectType<JSHandle<number>>(
+    await handle.evaluateHandle(() => {
+      return 1;
+    })
+  );
+  expectType<JSHandle<string>>(
+    await handle.evaluateHandle(() => {
+      return '';
+    })
+  );
+  expectType<JSHandle<string>>(
+    await handle.evaluateHandle((value, str) => {
+      expectNotAssignable<never>(value);
+      expectType<string>(str);
+      return '';
+    }, '')
+  );
+  expectType<ElementHandle<HTMLElement>>(
+    await handle.evaluateHandle(() => {
+      return document.body;
+    })
+  );
+}
+
+declare const handle2: JSHandle<{test: number}>;
+
+{
+  {
+    expectType<JSHandle<number>>(await handle2.getProperty('test'));
+    expectNotType<JSHandle<unknown>>(await handle2.getProperty('test'));
+  }
+  {
+    expectType<JSHandle<unknown>>(
+      await handle2.getProperty('key-doesnt-exist')
+    );
+    expectNotType<JSHandle<string>>(
+      await handle2.getProperty('key-doesnt-exist')
+    );
+    expectNotType<JSHandle<number>>(
+      await handle2.getProperty('key-doesnt-exist')
+    );
+  }
+}
+
+{
+  void handle.evaluate((value, other) => {
+    expectType<unknown>(value);
+    expectType<{test: number}>(other);
+  }, handle2);
+}