From 0bfebc4cee5af592095df56809a55f48432b239b Mon Sep 17 00:00:00 2001
From: Jeff Hemphill <jthemphill@gmail.com>
Date: Sat, 8 Nov 2025 22:47:54 -0800
Subject: [PATCH] New test to make sure `inlayHints` works with tuples as
 function parameters

---
 .../inlayHintsTupleParameter.baseline          | 18 ++++++++++++++++++
 .../fourslash/inlayHintsTupleParameter.ts      | 11 +++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 tests/baselines/reference/inlayHintsTupleParameter.baseline
 create mode 100644 tests/cases/fourslash/inlayHintsTupleParameter.ts

diff --git a/tests/baselines/reference/inlayHintsTupleParameter.baseline b/tests/baselines/reference/inlayHintsTupleParameter.baseline
new file mode 100644
index 0000000000000..e1cdc34786c19
--- /dev/null
+++ b/tests/baselines/reference/inlayHintsTupleParameter.baseline
@@ -0,0 +1,18 @@
+// === Inlay Hints ===
+    tuples.forEach((t) => {})
+                   ^
+{
+  "text": "callbackfn:",
+  "position": 72,
+  "kind": "Parameter",
+  "whitespaceAfter": true
+}
+
+    tuples.forEach((t) => {})
+                     ^
+{
+  "text": ": [string, string]",
+  "position": 74,
+  "kind": "Type",
+  "whitespaceBefore": true
+}
\ No newline at end of file
diff --git a/tests/cases/fourslash/inlayHintsTupleParameter.ts b/tests/cases/fourslash/inlayHintsTupleParameter.ts
new file mode 100644
index 0000000000000..00dd036ddd22b
--- /dev/null
+++ b/tests/cases/fourslash/inlayHintsTupleParameter.ts
@@ -0,0 +1,11 @@
+/// <reference path="fourslash.ts" />
+
+//// function iterateTuples(tuples: [string, string][]) {
+////     tuples.forEach((t) => {})
+//// }
+
+verify.baselineInlayHints(undefined, {
+  includeInlayVariableTypeHints: true,
+  includeInlayParameterNameHints: "all",
+  includeInlayFunctionParameterTypeHints: true,
+});