--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/util/Locale/bcp47u/CurrencyFormatTests.java	Thu Oct 17 20:53:35 2019 +0100
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ *
+ * @test
+ * @bug 8215181 8230284
+ * @summary Tests the "u-cf" extension
+ * @modules jdk.localedata
+ * @run testng/othervm -Djava.locale.providers=CLDR CurrencyFormatTests
+ */
+
+import static org.testng.Assert.assertEquals;
+
+import java.text.NumberFormat;
+import java.util.Locale;
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+/**
+ * Test NumberFormat with BCP47 u-cf extensions. Note that this test depends
+ * on the particular CLDR release. Results may vary on other CLDR releases.
+ */
+@Test
+public class CurrencyFormatTests {
+
+    @DataProvider(name="getInstanceData")
+    Object[][] getInstanceData() {
+        return new Object[][] {
+            // Locale, amount, expected
+            // US dollar
+            {Locale.US, -100, "-$100.00"},
+            {Locale.forLanguageTag("en-US-u-cf-standard"), -100, "-$100.00"},
+            {Locale.forLanguageTag("en-US-u-cf-account"), -100, "($100.00)"},
+            {Locale.forLanguageTag("en-US-u-cf-bogus"), -100, "-$100.00"},
+
+            // Euro
+            {Locale.forLanguageTag("en-AT"), -100, "-\u20ac\u00a0100,00"},
+            {Locale.forLanguageTag("en-AT-u-cf-standard"), -100, "-\u20ac\u00a0100,00"},
+            {Locale.forLanguageTag("en-AT-u-cf-account"), -100, "-\u20ac\u00a0100,00"},
+            {Locale.forLanguageTag("en-AT-u-cf-bogus"), -100, "-\u20ac\u00a0100,00"},
+
+            // Rupee
+            {Locale.forLanguageTag("en-IN"), -100, "-\u20b9\u00a0100.00"},
+            {Locale.forLanguageTag("en-IN-u-cf-standard"), -100, "-\u20b9\u00a0100.00"},
+            {Locale.forLanguageTag("en-IN-u-cf-account"), -100, "(\u20b9100.00)"},
+            {Locale.forLanguageTag("en-IN-u-cf-bogus"), -100, "-\u20b9\u00a0100.00"},
+
+            // Swiss franc
+            {Locale.forLanguageTag("en-CH"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-CH-u-cf-standard"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-CH-u-cf-account"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-CH-u-cf-bogus"), -100, "CHF-100.00"},
+
+            // Region override
+            {Locale.forLanguageTag("en-US-u-rg-CHZZZZ"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-US-u-rg-CHZZZZ-cf-standard"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-US-u-rg-CHZZZZ-cf-account"), -100, "CHF-100.00"},
+            {Locale.forLanguageTag("en-US-u-rg-CHZZZZ-cf-bogus"), -100, "CHF-100.00"},
+
+            // Numbering systems
+            // explicit
+            {Locale.forLanguageTag("zh-CN-u-nu-arab"), -100, "\u061c-\uffe5\u0661\u0660\u0660\u066b\u0660\u0660"},
+            {Locale.forLanguageTag("zh-CN-u-nu-arab-cf-standard"), -100, "\u061c-\uffe5\u0661\u0660\u0660\u066b\u0660\u0660"},
+            {Locale.forLanguageTag("zh-CN-u-nu-arab-cf-account"), -100, "\u061c-\uffe5\u0661\u0660\u0660\u066b\u0660\u0660"},
+            {Locale.forLanguageTag("zh-CN-u-nu-arab-cf-bogus"), -100, "\u061c-\uffe5\u0661\u0660\u0660\u066b\u0660\u0660"},
+            // implicit
+            {Locale.forLanguageTag("zh-CN"), -100, "-\uffe5100.00"},
+            {Locale.forLanguageTag("zh-CN-u-cf-standard"), -100, "-\uffe5100.00"},
+            {Locale.forLanguageTag("zh-CN-u-cf-account"), -100, "(\uffe5100.00)"},
+            {Locale.forLanguageTag("zh-CN-u-cf-bogus"), -100, "-\uffe5100.00"},
+            {Locale.forLanguageTag("ar-SA"), -100, "\u061c-\u0661\u0660\u0660\u066b\u0660\u0660\u00a0\u0631.\u0633.\u200f"},
+            {Locale.forLanguageTag("ar-SA-u-cf-standard"), -100, "\u061c-\u0661\u0660\u0660\u066b\u0660\u0660\u00a0\u0631.\u0633.\u200f"},
+            {Locale.forLanguageTag("ar-SA-u-cf-account"), -100, "\u061c-\u0661\u0660\u0660\u066b\u0660\u0660\u00a0\u0631.\u0633.\u200f"},
+            {Locale.forLanguageTag("ar-SA-u-cf-bogus"), -100, "\u061c-\u0661\u0660\u0660\u066b\u0660\u0660\u00a0\u0631.\u0633.\u200f"},
+        };
+    }
+
+    @Test(dataProvider="getInstanceData")
+    public void test_getInstance(Locale locale, int amount, String expected) {
+        assertEquals(NumberFormat.getCurrencyInstance(locale).format(amount), expected);
+    }
+}