test: improve console coverage to check ignoreErrors

test/parallel/test-console-write-without-ignore-errors.js

@@ -0,0 +1,29 @@
+'use strict';
+const common = require('../common');
+const { Console } = require('console');
+const { Writable } = require('stream');
+const assert = require('assert');
+const ignoreErrors = false;
+const expected = 'foobarbaz';
+
+{
+  const out = new Writable({
+    write: common.mustCall((chunk, enc, callback) => {
+      const actual = chunk.toString();
+      assert.strictEqual(expected + '\n', actual);
+    })
+  });
+
+  const c = new Console(out, out, ignoreErrors);
+  c.log(expected);
+}
+
+assert.throws(() => {
+  const err = new Writable({
+    write: common.mustCall((chunk, enc, callback) => {
+      throw new Error('foobar');
+    })
+  });
+  const c = new Console(err, err, ignoreErrors);
+  c.log(expected);
+}, /^Error: foobar$/);