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Diffstat (limited to 'js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/repeated-throw.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/repeated-throw.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/repeated-throw.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/repeated-throw.js new file mode 100644 index 0000000000..58bb67dc6c --- /dev/null +++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/repeated-throw.js @@ -0,0 +1,58 @@ +// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally +// Copyright (C) 2021 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-temporal.calendar.prototype.fields +description: > + Temporal.Calendar.prototype.fields will throw if its input iterable yields + the same value twice. +info: | + ## 12.4.21 Temporal.Calendar.prototype.fields ( fields ) + 1. Let calendar be the this value. + 2. Perform ? RequireInternalSlot(calendar, [[InitializedTemporalCalendar]]). + 4. Let iteratorRecord be ? Getiterator(fields, sync). + 5. Let fieldNames be a new empty List. + 6. Let next be true. + 7. Repeat, while next is not false, + a. Set next to ? IteratorStep(iteratorRecord). + b. If next is not false, then + i. Let nextValue be ? IteratorValue(next). + iii. If fieldNames contains nextValue, then + 1. Let completion be ThrowCompletion(a newly created RangeError object). + 2. Return ? IteratorClose(iteratorRecord, completion). +features: [Symbol, Symbol.iterator, Temporal, computed-property-names, generators] +---*/ +let cal = new Temporal.Calendar("iso8601") +let i = 0; +const fields = { + *[Symbol.iterator]() { + yield "month"; + i++; + yield "year"; + i++; + yield "year"; + i++; + } +} +assert.throws( + RangeError, () => cal.fields(fields), "repeated valid value should throw"); +assert.sameValue(i, 2, "Should stop at 2"); + +// Test all valid values will throw when repeated +[ "day", "monthCode", "month", "year" ].forEach((f) => { + i = 0; + const fields2 = { + *[Symbol.iterator]() { + yield f; + i++; + yield f; + i++; + } + } + assert.throws( + RangeError, () => cal.fields(fields2), "repeated valid value should throw"); + assert.sameValue(i, 1, "Should stop at 1"); +}); + +reportCompare(0, 0); |