js/src/tests/test262/built-ins/Temporal/ZonedDateTime/prototype/round/order-of-operations.js

   1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
   2 // Copyright (C) 2022 Igalia, S.L. All rights reserved.
   3 // This code is governed by the BSD license found in the LICENSE file.
   4
   5 /*---
   6 esid: sec-temporal.zoneddatetime.prototype.round
   7 description: Properties on objects passed to round() are accessed in the correct order
   8 includes: [compareArray.js, temporalHelpers.js]
   9 features: [Temporal]
  10 ---*/
  11
  12 const expected = [
  13   "get options.roundingIncrement",
  14   "get options.roundingIncrement.valueOf",
  15   "call options.roundingIncrement.valueOf",
  16   "get options.roundingMode",
  17   "get options.roundingMode.toString",
  18   "call options.roundingMode.toString",
  19   "get options.smallestUnit",
  20   "get options.smallestUnit.toString",
  21   "call options.smallestUnit.toString",
  22   // lookup
  23   "get this.timeZone.getOffsetNanosecondsFor",
  24   "get this.timeZone.getPossibleInstantsFor",
  25   // GetPlainDateTimeFor on receiver's instant
  26   "call this.timeZone.getOffsetNanosecondsFor",
  27   // GetInstantFor on preceding midnight
  28   "call this.timeZone.getPossibleInstantsFor",
  29   // AddDaysToZonedDateTime
  30   "call this.timeZone.getPossibleInstantsFor",
  31   // InterpretISODateTimeOffset
  32   "call this.timeZone.getPossibleInstantsFor",
  33   "call this.timeZone.getOffsetNanosecondsFor",
  34 ];
  35 const actual = [];
  36
  37 const options = TemporalHelpers.propertyBagObserver(actual, {
  38   smallestUnit: "nanoseconds",
  39   roundingMode: "halfExpand",
  40   roundingIncrement: 2,
  41 }, "options");
  42
  43 const nextHourOptions = TemporalHelpers.propertyBagObserver(actual, {
  44   smallestUnit: "hour",
  45   roundingMode: "ceil",
  46   roundingIncrement: 1,
  47 }, "options");
  48
  49 const calendar = TemporalHelpers.calendarObserver(actual, "this.calendar");
  50 const instance = new Temporal.ZonedDateTime(
  51   988786472_987_654_321n,  /* 2001-05-02T06:54:32.987654321Z */
  52   TemporalHelpers.timeZoneObserver(actual, "this.timeZone"),
  53   calendar,
  54 );
  55
  56 const fallBackTimeZone = TemporalHelpers.oneShiftTimeZone(Temporal.Instant.fromEpochSeconds(1800), -3600_000_000_000);
  57 const fallBackTimeZoneObserver = TemporalHelpers.timeZoneObserver(actual, "this.timeZone", {
  58   getOffsetNanosecondsFor: fallBackTimeZone.getOffsetNanosecondsFor.bind(fallBackTimeZone),
  59   getPossibleInstantsFor: fallBackTimeZone.getPossibleInstantsFor.bind(fallBackTimeZone),
  60 });
  61 const fallBackInstance = new Temporal.ZonedDateTime(0n, fallBackTimeZoneObserver, calendar);
  62 const beforeFallBackInstance = new Temporal.ZonedDateTime(-3599_000_000_000n, fallBackTimeZoneObserver, calendar);
  63
  64 const springForwardTimeZone = TemporalHelpers.oneShiftTimeZone(Temporal.Instant.fromEpochSeconds(-1800), 3600_000_000_000);
  65 const springForwardTimeZoneObserver = TemporalHelpers.timeZoneObserver(actual, "this.timeZone", {
  66   getOffsetNanosecondsFor: springForwardTimeZone.getOffsetNanosecondsFor.bind(springForwardTimeZone),
  67   getPossibleInstantsFor: springForwardTimeZone.getPossibleInstantsFor.bind(springForwardTimeZone),
  68 });
  69 const springForwardInstance = new Temporal.ZonedDateTime(0n, springForwardTimeZoneObserver, calendar);
  70 const beforeSpringForwardInstance = new Temporal.ZonedDateTime(-3599_000_000_000n, springForwardTimeZoneObserver, calendar);
  71 // clear any observable operations that happen due to time zone or calendar
  72 // calls in the constructors
  73 actual.splice(0);
  74
  75 instance.round(options);
  76 assert.compareArray(actual, expected, "order of operations");
  77 actual.splice(0); // clear
  78
  79 fallBackInstance.round(options);
  80 assert.compareArray(actual, expected, "order of operations with preceding midnight at repeated wall-clock time");
  81 actual.splice(0); // clear
  82
  83 beforeFallBackInstance.round(nextHourOptions);
  84 assert.compareArray(actual, expected, "order of operations with rounding result at repeated wall-clock time");
  85 actual.splice(0); // clear
  86
  87 const expectedSkippedDateTime = [
  88   "get options.roundingIncrement",
  89   "get options.roundingIncrement.valueOf",
  90   "call options.roundingIncrement.valueOf",
  91   "get options.roundingMode",
  92   "get options.roundingMode.toString",
  93   "call options.roundingMode.toString",
  94   "get options.smallestUnit",
  95   "get options.smallestUnit.toString",
  96   "call options.smallestUnit.toString",
  97   // lookup
  98   "get this.timeZone.getOffsetNanosecondsFor",
  99   "get this.timeZone.getPossibleInstantsFor",
 100   // GetPlainDateTimeFor on receiver's instant
 101   "call this.timeZone.getOffsetNanosecondsFor",
 102   // GetInstantFor on preceding midnight
 103   "call this.timeZone.getPossibleInstantsFor",
 104   // DisambiguatePossibleInstants
 105   "call this.timeZone.getOffsetNanosecondsFor",
 106   "call this.timeZone.getOffsetNanosecondsFor",
 107   "call this.timeZone.getPossibleInstantsFor",
 108   // AddZonedDateTime
 109   "call this.timeZone.getPossibleInstantsFor",
 110   // InterpretISODateTimeOffset
 111   "call this.timeZone.getPossibleInstantsFor",
 112   "call this.timeZone.getOffsetNanosecondsFor",
 113 ];
 114
 115 springForwardInstance.round(options);
 116 assert.compareArray(actual, expectedSkippedDateTime, "order of operations with preceding midnight at skipped wall-clock time");
 117 actual.splice(0); // clear
 118
 119 const expectedSkippedResult = [
 120   "get options.roundingIncrement",
 121   "get options.roundingIncrement.valueOf",
 122   "call options.roundingIncrement.valueOf",
 123   "get options.roundingMode",
 124   "get options.roundingMode.toString",
 125   "call options.roundingMode.toString",
 126   "get options.smallestUnit",
 127   "get options.smallestUnit.toString",
 128   "call options.smallestUnit.toString",
 129   // lookup
 130   "get this.timeZone.getOffsetNanosecondsFor",
 131   "get this.timeZone.getPossibleInstantsFor",
 132   // GetPlainDateTimeFor on receiver's instant
 133   "call this.timeZone.getOffsetNanosecondsFor",
 134   // GetInstantFor on preceding midnight
 135   "call this.timeZone.getPossibleInstantsFor",
 136   // AddDaysToZonedDateTime
 137   "call this.timeZone.getPossibleInstantsFor",
 138   // DisambiguatePossibleInstants
 139   "call this.timeZone.getOffsetNanosecondsFor",
 140   "call this.timeZone.getOffsetNanosecondsFor",
 141   "call this.timeZone.getPossibleInstantsFor",
 142   // InterpretISODateTimeOffset
 143   "call this.timeZone.getPossibleInstantsFor",
 144   // DisambiguatePossibleInstants
 145   "call this.timeZone.getOffsetNanosecondsFor",
 146   "call this.timeZone.getOffsetNanosecondsFor",
 147   "call this.timeZone.getPossibleInstantsFor",
 148 ];
 149
 150 beforeSpringForwardInstance.round(nextHourOptions);
 151 assert.compareArray(
 152   actual,
 153   expectedSkippedResult,
 154   "order of operations with following midnight and rounding result at skipped wall-clock time"
 155 );
 156 actual.splice(0); // clear
 157
 158 reportCompare(0, 0);