feat(test): Represent uncaught errors (#14513)

This commit adds better reporting of uncaught errors
in top level scope of testing files. This change affects
both console runner as well as LSP runner.

1 files changed, 14 insertions, 3 deletions

diff --git a/cli/tests/testdata/test/no_check.out b/cli/tests/testdata/test/no_check.out
index 9daab7ac4..3e1c93535 100644
--- a/cli/tests/testdata/test/no_check.out
+++ b/cli/tests/testdata/test/no_check.out
@@ -1,8 +1,19 @@
+Uncaught error from ./test/no_check.ts FAILED
 
-test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out ([WILDCARD])
+ ERRORS 
 
-error: Uncaught TypeError: Cannot read properties of undefined (reading 'fn')
+./test/no_check.ts (uncaught error)
+error: TypeError: Cannot read properties of undefined (reading 'fn')
 Deno.test();
      ^
-    at [WILDCARD]
     at [WILDCARD]/test/no_check.ts:1:6
+This error was not caught from a test and caused the test runner to fail on the referenced module.
+It most likely originated from a dangling promise, event/timeout handler or top-level code.
+
+ FAILURES 
+
+./test/no_check.ts (uncaught error)
+
+test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out ([WILDCARD])
+
+error: Test failed