From d2ef2877918fa6d78592cafb1c6c7d0075928af4 Mon Sep 17 00:00:00 2001
From: Bedis Nbiba <bedisnbiba@gmail.com>
Date: Tue, 29 Jul 2025 00:45:41 +0100
Subject: [PATCH] Add runnable support for Deno.test (#34593)

example of detected code:
```ts
Deno.test("t", () => {
  console.log("Hello, World!");
});

Deno.test(function azaz() {
  console.log("Hello, World!");
});
```

I can't build zed locally so I didn't test this, but I think the code is
straightforward enough, hopefully someone else can verify it

Closes #ISSUE

Release Notes:

- N/A
---
 crates/languages/src/typescript/runnables.scm | 41 ++++++++++++++++++-
 docs/src/languages/deno.md                    | 34 +++++++++++++++
 2 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/crates/languages/src/typescript/runnables.scm b/crates/languages/src/typescript/runnables.scm
index 85702cf99d..6bfc536329 100644
--- a/crates/languages/src/typescript/runnables.scm
+++ b/crates/languages/src/typescript/runnables.scm
@@ -1,4 +1,4 @@
-; Add support for (node:test, bun:test and Jest) runnable
+; Add support for (node:test, bun:test, Jest and Deno.test) runnable
 ; Function expression that has `it`, `test` or `describe` as the function name
 (
     (call_expression
@@ -44,3 +44,42 @@
 
     (#set! tag js-test)
 )
+
+; Add support for Deno.test with string names
+(
+    (call_expression
+        function: (member_expression
+            object: (identifier) @_namespace
+            property: (property_identifier) @_method
+        )
+        (#eq? @_namespace "Deno")
+        (#eq? @_method "test")
+        arguments: (
+            arguments . [
+                (string (string_fragment) @run @DENO_TEST_NAME)
+                (identifier) @run @DENO_TEST_NAME
+            ]
+        )
+    ) @_js-test
+
+    (#set! tag js-test)
+)
+
+; Add support for Deno.test with named function expressions
+(
+    (call_expression
+        function: (member_expression
+            object: (identifier) @_namespace
+            property: (property_identifier) @_method
+        )
+        (#eq? @_namespace "Deno")
+        (#eq? @_method "test")
+        arguments: (
+            arguments . (function_expression
+                name: (identifier) @run @DENO_TEST_NAME
+            )
+        )
+    ) @_js-test
+
+    (#set! tag js-test)
+)
diff --git a/docs/src/languages/deno.md b/docs/src/languages/deno.md
index c18b112326..c40b6531e6 100644
--- a/docs/src/languages/deno.md
+++ b/docs/src/languages/deno.md
@@ -57,6 +57,40 @@ See [Configuring supported languages](../configuring-languages.md) in the Zed do
 TBD: Deno Typescript REPL instructions [docs/repl#typescript-deno](../repl.md#typescript-deno)
 -->
 
+## DAP support
+
+To debug deno programs, add this to `.zed/debug.json`
+
+```json
+[
+  {
+    "adapter": "JavaScript",
+    "label": "Deno",
+    "request": "launch",
+    "type": "pwa-node",
+    "cwd": "$ZED_WORKTREE_ROOT",
+    "program": "$ZED_FILE",
+    "runtimeExecutable": "deno",
+    "runtimeArgs": ["run", "--allow-all", "--inspect-wait"],
+    "attachSimplePort": 9229
+  }
+]
+```
+
+## Runnable support
+
+To run deno tasks like tests from the ui, add this to `.zed/tasks.json`
+
+```json
+[
+  {
+    "label": "deno test",
+    "command": "deno test -A --filter '/^$ZED_CUSTOM_DENO_TEST_NAME$/' $ZED_FILE",
+    "tags": ["js-test"]
+  }
+]
+```
+
 ## See also:
 
 - [TypeScript](./typescript.md)