chore: add upgrade prompt integration test (denoland#21273)

1. Adds an upgrade prompt integration test.
1. Adds a test for when the upgrade check takes a long time in the repl.

cli/tests/integration/upgrade_tests.rs

@@ -2,8 +2,10 @@
 
 use std::process::Command;
 use std::process::Stdio;
+use std::time::Instant;
 use test_util as util;
 use test_util::TempDir;
+use util::TestContextBuilder;
 
 // Warning: this test requires internet access.
 // TODO(#7412): reenable. test is flaky
@@ -192,3 +194,62 @@ fn upgrade_invalid_canary_version() {
     util::strip_ansi_codes(&String::from_utf8(output.stderr).unwrap())
   );
 }
+
+#[test]
+fn upgrade_prompt() {
+  let context = TestContextBuilder::new()
+    .use_http_server()
+    .use_temp_cwd()
+    .env(
+      "DENO_DONT_USE_INTERNAL_BASE_UPGRADE_URL",
+      "https://localhost:4545",
+    )
+    .build();
+  let temp_dir = context.temp_dir();
+  // start a task that goes indefinitely in order to allow
+  // the upgrade check to occur
+  temp_dir.write("main.js", "setInterval(() => {}, 1_000)");
+  let cmd = context
+    .new_command()
+    .args("run --log-level=debug main.js")
+    .env_remove("DENO_NO_UPDATE_CHECK");
+  // run once and wait for the version to be stored
+  cmd.with_pty(|mut pty| {
+    pty.expect("Finished upgrade checker.");
+  });
+  // now check that the upgrade prompt is shown the next time this is run
+  temp_dir.write("main.js", "");
+  cmd.with_pty(|mut pty| {
+    // - We need to use a pty here because the upgrade prompt
+    //   doesn't occur except when there's a pty.
+    // - Version comes from the test server.
+    pty.expect(" 99999.99.99 Run `deno upgrade` to install it.");
+  });
+}
+
+#[test]
+fn upgrade_lsp_repl_sleeps() {
+  let context = TestContextBuilder::new()
+    .use_http_server()
+    .use_temp_cwd()
+    .env(
+      "DENO_DONT_USE_INTERNAL_BASE_UPGRADE_URL",
+      "https://localhost:4545/upgrade/sleep",
+    )
+    .build();
+  let start_instant = Instant::now();
+  // ensure this works even though the upgrade check is taking
+  // a long time to complete
+  context
+    .new_command()
+    .args("repl")
+    .env_remove("DENO_NO_UPDATE_CHECK")
+    .with_pty(|mut pty| {
+      pty.write_line("123 + 456\n");
+      pty.expect("579");
+    });
+
+  // the test server will sleep for 45 seconds, so ensure this is less
+  let elapsed_secs = start_instant.elapsed().as_secs();
+  assert!(elapsed_secs < 30, "elapsed_secs: {}", elapsed_secs);
+}

cli/tools/upgrade.rs

@@ -263,6 +263,9 @@ pub fn check_for_upgrades(
       tokio::time::sleep(UPGRADE_CHECK_FETCH_DELAY).await;
 
       fetch_and_store_latest_version(&env, &version_provider).await;
+
+      // text is used by the test suite
+      log::debug!("Finished upgrade checker.")
     });
   }
 
@@ -597,7 +600,7 @@ fn get_url(
 }
 
 fn base_upgrade_url() -> Cow<'static, str> {
-  // this is used to get the current version
+  // this is used by the test suite
   if let Ok(url) = env::var("DENO_DONT_USE_INTERNAL_BASE_UPGRADE_URL") {
     Cow::Owned(url)
   } else {

test_util/src/builders.rs

@@ -635,6 +635,9 @@ impl TestCommandBuilder {
     if !envs.contains_key("NPM_CONFIG_REGISTRY") {
       envs.insert("NPM_CONFIG_REGISTRY".to_string(), npm_registry_unset_url());
     }
+    if !envs.contains_key("DENO_NO_UPDATE_CHECK") {
+      envs.insert("DENO_NO_UPDATE_CHECK".to_string(), "1".to_string());
+    }
     for key in &self.envs_remove {
       envs.remove(key);
     }

test_util/src/lib.rs

@@ -1273,6 +1273,24 @@ async fn main_server(
           .unwrap(),
       )
     }
+    (&hyper::Method::GET, "/upgrade/sleep/release-latest.txt") => {
+      tokio::time::sleep(Duration::from_secs(45)).await;
+      return Ok(
+        Response::builder()
+          .status(StatusCode::OK)
+          .body(Body::from("99999.99.99"))
+          .unwrap(),
+      );
+    }
+    (&hyper::Method::GET, "/release-latest.txt") => {
+      return Ok(
+        Response::builder()
+          .status(StatusCode::OK)
+          // use a deno version that will never happen
+          .body(Body::from("99999.99.99"))
+          .unwrap(),
+      );
+    }
     _ => {
       let mut file_path = testdata_path().to_path_buf();
       file_path.push(&req.uri().path()[1..].replace("%2f", "/"));