chore: add test to ensure parsing only happens once on first load (de…

…noland#23837)

cli/cache/parsed_source.rs

@@ -77,6 +77,8 @@ impl ParsedSourceCache {
  if parsed_source.media_type() == media_type
  && parsed_source.text_info().text_str() == source.as_ref()
  {
+ // note: message used tests
+ log::debug!("Removed parsed source: {}", specifier);
  return Ok(parsed_source);
  }
  }

tests/specs/run/no_reparse_first_load/__test__.jsonc

@@ -0,0 +1,6 @@
+// ensures we don't reparse a source file when transpiling
+// because it should have already been parsed by module analysis
+{
+ "args": "run --log-level=debug main.ts",
+ "output": "main.out"
+}

tests/specs/run/no_reparse_first_load/main.out

@@ -0,0 +1,2 @@
+[WILDCARD]Removed parsed source: file:https:///[WILDLINE]/main.ts
+[WILDCARD]

tests/specs/run/no_reparse_first_load/main.ts

@@ -0,0 +1 @@
+console.log("Hello");