feat(publish): add `npm:` suggestion for esm.sh specifiers (#22343)

![image](https://github.com/denoland/deno/assets/34997667/f32642ed-c109-4519-84c5-6f78e9452703)

Co-authored-by: David Sherret <dsherret@users.noreply.github.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/integration/publish_tests.rs b/tests/integration/publish_tests.rs
index befd3826e..ec5345553 100644
--- a/tests/integration/publish_tests.rs
+++ b/tests/integration/publish_tests.rs
@@ -63,6 +63,15 @@ itest!(invalid_import {
   http_server: true,
 });
 
+itest!(invalid_import_esm_sh_suggestion {
+  args: "publish --token 'sadfasdf' --dry-run",
+  output: "publish/invalid_import_esm_sh_suggestion.out",
+  cwd: Some("publish/invalid_import_esm_sh_suggestion"),
+  envs: env_vars_for_npm_tests(),
+  exit_code: 1,
+  http_server: true,
+});
+
 #[test]
 fn publish_non_exported_files_using_import_map() {
   let context = publish_context_builder().build();