fix(cli): tolerate #2702 stderr noise

packages/cli/test/_section.js

@@ -6,6 +6,12 @@
  * Transforms a testRoutine into an ava test.
  * The testCommand function asserts that a given awaitable command produces the expected stdout and stderr.
  *
+ * An absent `expectation.stdout` defaults to the empty string.
+ * An absent `expectation.stderr` now defaults to an accept-anything regexp
+ * in order to tolerate extra tool-generated noise that happens, for example,
+ * when run under a vscode JavaScript Debug Terminal
+ * @see https://github.com/endojs/endo/issues/2702
+ *
  * @param {Execa} execa - the command execution environment
  * @param {TestRoutine} testRoutine - the test logic implementation
  * @returns {(t: t) => Promise<void>}
@@ -15,16 +21,16 @@ export function makeSectionTest(execa, testRoutine) {
     const matchExpecation = (expectation, result, errMsg) => {
       (expectation instanceof RegExp ? t.regex : t.is)(
         result,
-        expectation ?? '',
+        expectation,
         errMsg,
       );
     };
     const testCommand = async (command, expectation) => {
       const result = await command;
       if (expectation !== undefined) {
         const errMsg = JSON.stringify({ expectation, result }, null, 2);
-        matchExpecation(expectation.stdout, result.stdout, errMsg);
-        matchExpecation(expectation.stderr, result.stderr, errMsg);
+        matchExpecation(expectation.stdout ?? '', result.stdout, errMsg);
+        matchExpecation(expectation.stderr ?? /.*/, result.stderr, errMsg);
       }
     };
     await testRoutine(execa, testCommand);