From c1eba16b84c5bba4f7fdf05beb6ccf5e0fd1da16 Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Wed, 15 Mar 2023 21:41:13 -0400
Subject: fix(repl): do not panic deleting `Deno` or deleting all its
 properties (#18211)

Closes #18194
Closes #12092
---
 cli/tests/integration/repl_tests.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'cli/tests/integration/repl_tests.rs')

diff --git a/cli/tests/integration/repl_tests.rs b/cli/tests/integration/repl_tests.rs
index efbde55c3..aafb3bb48 100644
--- a/cli/tests/integration/repl_tests.rs
+++ b/cli/tests/integration/repl_tests.rs
@@ -222,6 +222,36 @@ fn pty_assign_global_this() {
   });
 }
 
+#[test]
+fn pty_assign_deno_keys_and_deno() {
+  util::with_pty(&["repl"], |mut console| {
+    console.write_line(
+      "Object.keys(Deno).forEach((key)=>{try{Deno[key] = undefined} catch {}})",
+    );
+    console.write_line("delete globalThis.Deno");
+    console.write_line("console.log('testing ' + 'this out')");
+    console.write_line("close();");
+
+    let output = console.read_all_output();
+    assert_not_contains!(output, "panicked");
+    assert_contains!(output, "testing this out");
+  });
+}
+
+#[test]
+fn pty_internal_repl() {
+  util::with_pty(&["repl"], |mut console| {
+    console.write_line("globalThis");
+    console.write_line("__\t\t");
+    console.write_line("close();");
+    let output = console.read_all_output();
+    assert_contains!(output, "__defineGetter__");
+    // should not contain the internal repl variable
+    // in the `globalThis` or completions output
+    assert_not_contains!(output, "__DENO_");
+  });
+}
+
 #[test]
 fn pty_emoji() {
   // windows was having issues displaying this
-- 
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