feat: `deno init --serve` (#24897)

This commit adds "--serve" flag to "deno init" subcommand,
that provides a template for quick starting a project using
"deno serve".

---------

Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/integration/init_tests.rs b/tests/integration/init_tests.rs
index 65a57eeea..757dcb021 100644
--- a/tests/integration/init_tests.rs
+++ b/tests/integration/init_tests.rs
@@ -170,3 +170,50 @@ Run these commands to get started
   output.assert_exit_code(0);
   output.assert_matches_text("Log from main.ts that already exists\n");
 }
+
+#[tokio::test]
+async fn init_subcommand_serve() {
+  let context = TestContextBuilder::for_jsr().use_temp_cwd().build();
+  let cwd = context.temp_dir().path();
+
+  let output = context
+    .new_command()
+    .args("init --serve")
+    .split_output()
+    .run();
+
+  output.assert_exit_code(0);
+
+  let stderr = output.stderr();
+  assert_contains!(stderr, "Project initialized");
+  assert_contains!(stderr, "deno serve -R main.ts");
+  assert_contains!(stderr, "deno task dev");
+  assert_contains!(stderr, "deno -R test");
+
+  assert!(cwd.join("deno.json").exists());
+
+  let mut child = context
+    .new_command()
+    .env("NO_COLOR", "1")
+    .args("serve -R --port 9500 main.ts")
+    .spawn_with_piped_output();
+
+  tokio::time::sleep(std::time::Duration::from_millis(1000)).await;
+  let resp = reqwest::get("http://127.0.0.1:9500").await.unwrap();
+
+  let body = resp.text().await.unwrap();
+  assert_eq!(body, "Home page");
+
+  let _ = child.kill();
+
+  let output = context
+    .new_command()
+    .env("NO_COLOR", "1")
+    .args("-R test")
+    .split_output()
+    .run();
+
+  output.assert_exit_code(0);
+  assert_contains!(output.stdout(), "4 passed");
+  output.skip_output_check();
+}