Added tests to verify that use of "long", "short", or "narrow" styles for units following units using "numeric" or "2-digit" styles throws

test/intl402/DurationFormat/constructor-options-style-conflict.js

@@ -0,0 +1,43 @@
+// Copyright 2023 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-isvaliddurationrecord
+description: Checks that the "long", "short", and "narrow" styles can't be used for units following a unit using the "numeric" or "2-digit" style.
+info: |
+    GetDurationUnitOptions (unit, options, baseStyle, stylesList, digitalBase, prevStyle)
+    (...)
+    6. If prevStyle is "numeric" or "2-digit", then
+    a. If style is not "numeric" or "2-digit", then
+        i. Throw a RangeError exception.
+features: [Intl.DurationFormat]
+---*/
+
+let invalidOptions = {};
+for (const timeUnit of ["hours", "minutes", "seconds", "milliseconds", "microseconds", "nanoseconds"]){
+  invalidOptions[timeUnit] = "numeric";
+}
+
+for (const timeUnit of ["minutes", "seconds", "milliseconds", "microseconds", "nanoseconds"]){
+  for (const invalidStyle of ["long", "short", "narrow"]){
+    invalidOptions[timeUnit] = invalidStyle;
+    assert.throws(RangeError, function() {
+      new Intl.DurationFormat([], invalidOptions);
+    }, `${invalidStyle} is an invalid style option value when following a unit with \"numeric\" style`);
+  }
+  invalidOptions[timeUnit] = "numeric";
+}
+
+for (const timeUnit of ["hours", "minutes", "seconds"]){
+  invalidOptions[timeUnit] = "2-digit";
+}
+
+for (const timeUnit of ["minutes", "seconds", "milliseconds"]){
+  for (const invalidStyle of ["long", "short", "narrow"]){
+    invalidOptions[timeUnit] = invalidStyle;
+    assert.throws(RangeError, function() {
+      new Intl.DurationFormat([], invalidOptions);
+    }, `${invalidStyle} is an invalid style option value when following a unit with \"2-digit\" style`);
+  }
+  invalidOptions[timeUnit] = "2-digit";
+}