Intl.NumberFormat Add tests for Intl.NumberFormat when using "curre…

…ncy" style and "compact", "engineering", and "scientific" notations.

Related PR: tc39/ecma402#925

test/intl402/NumberFormat/currency-digits-nonstandard-notation.js

@@ -0,0 +1,34 @@
+// Copyright 2024 Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.numberformat
+description: >
+  Checks that the special handling for number of fractional digits when formatting currency values in "standard" notation is ignored when using "compact", "engineering", or "scientific" notation.
+info: |
+  Intl.DateTimeFormat ( [ locales [ , options ] ] )
+
+  ...
+  19. If style is "currency" and "notation" is "standard", then
+  ...
+  20. Else,
+    a. mnfdDefault be 0.
+    b. If style is "percent", then
+      i. Let mxfdDefault be 0.
+    c. Else,
+      i. Let mxfdDefault be 3.
+---*/
+
+for (const notation of ["compact", "engineering", "scientific"]) {
+  for (const currency of ["JPY", "KWD", "USD"]) {
+    let nf = new Intl.NumberFormat('en-US', {style: "currency", currency, notation});
+    const resolvedOptions = nf.resolvedOptions();
+    const minimumFractionDigits = resolvedOptions.minimumFractionDigits;
+    const maximumFractionDigits = resolvedOptions.maximumFractionDigits;
+
+    assert.sameValue(minimumFractionDigits, 0, "Didn't get correct minimumFractionDigits for currency " + currency + ".");
+    assert.sameValue(maximumFractionDigits, 3, "Didn't get correct maximumFractionDigits for currency " + currency + ".");
+  }
+}
+
+