fix(node): polyfill process.title (#20044)

Closes https://github.com/denoland/deno/issues/19777

2 files changed, 20 insertions, 0 deletions

diff --git a/cli/tests/unit_node/process_test.ts b/cli/tests/unit_node/process_test.ts
index 7e927a8ad..461afb9f6 100644
--- a/cli/tests/unit_node/process_test.ts
+++ b/cli/tests/unit_node/process_test.ts
@@ -764,3 +764,13 @@ Deno.test({
     assert(typeof process.stdout.isTTY === "boolean");
   },
 });
+
+Deno.test({
+  name: "process.title",
+  fn() {
+    assertEquals(process.title, "deno");
+    // Verify that setting the value has no effect.
+    process.title = "foo";
+    assertEquals(process.title, "deno");
+  },
+});
diff --git a/ext/node/polyfills/process.ts b/ext/node/polyfills/process.ts
index b0a4d04c8..2f1c2968f 100644
--- a/ext/node/polyfills/process.ts
+++ b/ext/node/polyfills/process.ts
@@ -364,6 +364,16 @@ class Process extends EventEmitter {
     return arch;
   }
 
+  get title() {
+    return "deno";
+  }
+
+  set title(_value) {
+    // NOTE(bartlomieju): this is a noop. Node.js doesn't guarantee that the
+    // process name will be properly set and visible from other tools anyway.
+    // Might revisit in the future.
+  }
+
   /**
    * https://nodejs.org/api/process.html#process_process_argv
    * Read permissions are required in order to get the executable route