testing for invalid combinations of numeric and non-numeric styles

test/intl402/DurationFormat/constructor-options-inconsistent-style-invalid.js

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+// Copyright 2023 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.DurationFormat
+description: Checks handling of a null options argument to the DurationFormat constructor.
+info: |
+  1.2.1 Intl.DurationFormat ( [ locales [ , options ] ] )
+    (...)
+    17. For each row of Table 3, except the header row, in table order, do
+      a. Let styleSlot be the Style Slot value of the current row.
+      b. Let displaySlot be the Display Slot value of the current row.
+      c. Let unit be the Unit value.
+      d. Let valueList be the Values value.
+      e. Let digitalBase be the Digital Default value.
+      f. Let unitOptions be ? GetDurationUnitOptions(unit, options, style, valueList, digitalBase, prevStyle).
+      
+  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]
+---*/
+
+var numericStyles = ['numeric', '2-digit'];
+
+for (var style of numericStyles){
+  assert.throws(RangeError, function() {
+    new Intl.DurationFormat(undefined, { hours: style, minutes: "long"});
+  });
+  assert.throws(RangeError, function() {
+    new Intl.DurationFormat(undefined, { minutes: style, milliseconds: "long"});
+  });
+}