<p dir="auto">It looks like the <code class="notranslate">compatibility</code> mode is broken in 1.25.2 <a href="https://deno.land/manual@v1.25.2/node/compatibility_mode" rel="nofollow">https://deno.land/manual@v1.25.2/node/compatibility_mode</a></p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="&gt; deno run --unstable --compat --allow-read --allow-env ./test.f.cjs
PS C:\github.com\functionalscript\functionalscript&gt; deno run --unstable --compat --allow-read --allow-env ./test.f.cjs
error: Found argument '--compat' which wasn't expected, or isn't valid in this context

        If you tried to supply `--compat` as a value rather than a flag, use `-- --compat`

USAGE:
    deno run --unstable &lt;SCRIPT_ARG&gt;...

For more information try --help"><pre class="notranslate"><code class="notranslate">&gt; deno run --unstable --compat --allow-read --allow-env ./test.f.cjs
PS C:\github.com\functionalscript\functionalscript&gt; deno run --unstable --compat --allow-read --allow-env ./test.f.cjs
error: Found argument '--compat' which wasn't expected, or isn't valid in this context

        If you tried to supply `--compat` as a value rather than a flag, use `-- --compat`

USAGE:
    deno run --unstable &lt;SCRIPT_ARG&gt;...

For more information try --help
</code></pre></div>
<p dir="auto">Example: <a href="https://github.com/functionalscript/functionalscript/runs/8286749568?check_suite_focus=true">https://github.com/functionalscript/functionalscript/runs/8286749568?check_suite_focus=true</a></p>
<p dir="auto"><code class="notranslate">Deno.test({ name: "a", ignore: undefined, fn() {}})</code> works in Deno 1.32.4 and breaks in Deno 1.32.5</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="/m/a/P/g/d/x ❯❯❯ deno test test.ts
Check file:///mnt/artemis/Projects/github.com/denoland/x/test.ts
Uncaught error from ./test.ts FAILED

 ERRORS 

./test.ts (uncaught error)
error: TypeError: Error parsing args at position 0: missing field `ignore`
Deno.test({ name: &quot;a&quot;, ignore: undefined, fn() {}})
     ^
    at Object.test (ext:cli/40_testing.js:675:30)
    at file:///mnt/artemis/Projects/github.com/denoland/x/test.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.ts (uncaught error)

FAILED | 0 passed | 1 failed (11ms)

error: Test failed"><pre class="notranslate"><code class="notranslate">/m/a/P/g/d/x ❯❯❯ deno test test.ts
Check file:///mnt/artemis/Projects/github.com/denoland/x/test.ts
Uncaught error from ./test.ts FAILED

 ERRORS 

./test.ts (uncaught error)
error: TypeError: Error parsing args at position 0: missing field `ignore`
Deno.test({ name: "a", ignore: undefined, fn() {}})
     ^
    at Object.test (ext:cli/40_testing.js:675:30)
    at file:///mnt/artemis/Projects/github.com/denoland/x/test.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.ts (uncaught error)

FAILED | 0 passed | 1 failed (11ms)

error: Test failed
</code></pre></div>
<p dir="auto">I suspect <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1650769232" data-permission-text="Title is private" data-url="https://github.com/denoland/deno/issues/18563" data-hovercard-type="pull_request" data-hovercard-url="/denoland/deno/pull/18563/hovercard" href="https://github.com/denoland/deno/pull/18563">#18563</a></p>