test: add test/it options precedence suite

This adds a test suite which proves the behavior of `test`/`it`'s
options; specifically how the `name` and `fn` options take precedence
over their associated parameters, and how a test can be named and run
using only a single "options" parameter.

Signed-off-by: Christopher Hiller <boneskull@boneskull.com>

Author: boneskull

test/parallel/test-runner-option-precedence.js

@@ -0,0 +1,41 @@
+'use strict';
+require('../common');
+const { test, suite } = require('node:test');
+
+suite('test runner option precedence', () => {
+  test(
+    'overridden test name',
+    { name: 'options.name overrides test name', plan: 1 },
+    (t) => {
+      t.assert.strictEqual(t.name, 'options.name overrides test name');
+    },
+  );
+
+  test(
+    'options.fn overrides test function',
+    {
+      fn: (t) => {
+        t.assert.ok(true);
+      },
+      plan: 1,
+    },
+    (t) => {
+      t.assert.fail('should not be called');
+    },
+  );
+
+  test('options.fn only', {
+    plan: 1,
+    fn: (t) => {
+      t.assert.ok(true);
+    },
+  });
+
+  test({
+    name: 'single parameter options',
+    plan: 1,
+    fn: (t) => {
+      t.assert.ok(true);
+    },
+  });
+});