test: refactor test-readline-interface to be shorter

PR-URL: #38691
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-readline-interface.js

@@ -87,34 +87,16 @@ function assertCursorRowsAndCols(rli, rows, cols) {
   const input = new FakeInput();
 
   // Constructor throws if completer is not a function or undefined
-  assert.throws(() => {
-    readline.createInterface({
-      input,
-      completer: 'string is not valid'
-    });
-  }, {
-    name: 'TypeError',
-    code: 'ERR_INVALID_ARG_VALUE'
-  });
-
-  assert.throws(() => {
-    readline.createInterface({
-      input,
-      completer: ''
-    });
-  }, {
-    name: 'TypeError',
-    code: 'ERR_INVALID_ARG_VALUE'
-  });
-
-  assert.throws(() => {
-    readline.createInterface({
-      input,
-      completer: false
+  ['not an array', 123, 123n, {}, true, Symbol(), null].forEach((invalid) => {
+    assert.throws(() => {
+      readline.createInterface({
+        input,
+        completer: invalid
+      });
+    }, {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_VALUE'
     });
-  }, {
-    name: 'TypeError',
-    code: 'ERR_INVALID_ARG_VALUE'
   });
 
   // Constructor throws if history is not an array