test: add NumberFormat resolvedOptions test

richardlau · richardlau · commit 45c2ea3b7208 · 2021-07-20T07:11:42.000-04:00
Add a regression test for NumberFormat resolvedOptions. PR-URL: #39401 Refs: #39050 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Backport-PR-URL: #39051
diff --git a/test/parallel/test-intl.js b/test/parallel/test-intl.js
@@ -104,6 +104,13 @@ if (!common.hasIntl) {
     const numberFormat = new Intl.NumberFormat(['en']).format(12345.67890);
     assert.strictEqual(numberFormat, '12,345.679');
   }
+  // Number format resolved options
+  {
+    const numberFormat = new Intl.NumberFormat('en-US', { style: 'percent' });
+    const resolvedOptions = numberFormat.resolvedOptions();
+    assert.strictEqual(resolvedOptions.locale, 'en-US');
+    assert.strictEqual(resolvedOptions.style, 'percent');
+  }
   // Significant Digits
   {
     const loc = ['en-US'];

Original file line number	Diff line number	Diff line change
`@@ -104,6 +104,13 @@ if (!common.hasIntl) {`
`104`	`104`	`const numberFormat = new Intl.NumberFormat(['en']).format(12345.67890);`
`105`	`105`	`assert.strictEqual(numberFormat, '12,345.679');`
`106`	`106`	`}`
	`107`	`+ // Number format resolved options`
	`108`	`+ {`
	`109`	`+ const numberFormat = new Intl.NumberFormat('en-US', { style: 'percent' });`
	`110`	`+ const resolvedOptions = numberFormat.resolvedOptions();`
	`111`	`+ assert.strictEqual(resolvedOptions.locale, 'en-US');`
	`112`	`+ assert.strictEqual(resolvedOptions.style, 'percent');`
	`113`	`+ }`
`107`	`114`	`// Significant Digits`
`108`	`115`	`{`
`109`	`116`	`const loc = ['en-US'];`