Temporal: Port staging tests that use next/previousTransition

See: tc39/proposal-temporal#2826

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/offset-timezone-no-transitions.js

@@ -0,0 +1,12 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: An offset time zone has no transitions.
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "-10:00");
+assert.sameValue(zdt.getTimeZoneTransition("next"), null, "An offset time zone has no next transition");
+assert.sameValue(zdt.getTimeZoneTransition("previous"), null, "An offset time zone has no previous transition");

test/built-ins/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/utc-no-transitions.js

@@ -0,0 +1,12 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: The UTC time zone has no transitions.
+features: [Temporal]
+---*/
+
+const zdt = new Temporal.ZonedDateTime(0n, "UTC");
+assert.sameValue(zdt.getTimeZoneTransition("next"), null, "The UTC time zone has no next transition");
+assert.sameValue(zdt.getTimeZoneTransition("previous"), null, "The UTC time zone has no previous transition");

test/intl402/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/result-type.js

@@ -0,0 +1,24 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: Next and previous transition in a named time zone has the correct return type
+features: [Temporal]
+---*/
+
+let zdt = new Temporal.ZonedDateTime(0n, "America/Los_Angeles");
+for (let count = 0; count < 4; count++) {
+  const transition = zdt.getTimeZoneTransition("next");
+  assert(transition instanceof Temporal.ZonedDateTime, "getTimeZoneTransition(next) returns Temporal.ZonedDateTime");
+  assert(!transition.equals(zdt), "getTimeZoneTransition(next) does not return its input");
+  zdt = transition;
+}
+
+zdt = new Temporal.ZonedDateTime(1_000_000_000_000_000_000n, "America/Los_Angeles");
+for (let count = 0; count < 4; count++) {
+  const transition = zdt.getTimeZoneTransition("previous");
+  assert(transition instanceof Temporal.ZonedDateTime, "getTimeZoneTransition(previous) returns Temporal.ZonedDateTime");
+  assert(!transition.equals(zdt), "getTimeZoneTransition(previous) does not return its input");
+  zdt = transition;
+}

test/intl402/Temporal/ZonedDateTime/prototype/getTimeZoneTransition/specific-tzdb-values.js

@@ -0,0 +1,20 @@
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.gettimezonetransition
+description: Smoke test specific values from time zone database
+features: [Temporal]
+---*/
+
+const a1 = new Temporal.ZonedDateTime(1555448460_000_000_000n /* = 2019-04-16T21:01Z */, "America/New_York");
+assert.sameValue(a1.getTimeZoneTransition("next").epochNanoseconds, 1572760800_000_000_000n /* = 2019-11-03T06:00:00Z */);
+
+const a2 = new Temporal.ZonedDateTime(-5364662400_000_000_000n /* = 1800-01-01T00:00Z */, "America/New_York");
+assert.sameValue(a2.getTimeZoneTransition("next").epochNanoseconds, -2717650800_000_000_000n /* = 1883-11-18T17:00:00Z */);
+
+const a3 = new Temporal.ZonedDateTime(1591909260_000_000_000n /* = 2020-06-11T21:01Z */, "Europe/London");
+assert.sameValue(a3.getTimeZoneTransition("previous").epochNanoseconds, 1585443600_000_000_000n /* = 2020-03-29T01:00:00Z */);
+
+const a4 = new Temporal.ZonedDateTime(-3849984000_000_000_000n /* = 1848-01-01T00:00Z */, "Europe/London");
+assert.sameValue(a4.getTimeZoneTransition("previous").epochNanoseconds, -3852662325_000_000_000n, /* = 1847-12-01T00:01:15Z */);

test/staging/Intl402/Temporal/old/timezone-america-la.js

@@ -14,15 +14,3 @@ assert.sameValue(zone.id, `${ zone }`)
 assert.sameValue(zone.getOffsetNanosecondsFor(inst), -8 * 3600000000000)
 assert.sameValue(zone.getOffsetStringFor(inst), "-08:00")
 assert(zone.getInstantFor(dtm) instanceof Temporal.Instant)
-for (var i = 0, txn = inst; i < 4; i++) {
-  var transition = zone.getNextTransition(txn);
-  assert(transition instanceof Temporal.Instant);
-  assert(!transition.equals(txn));
-  txn = transition;
-}
-for (var i = 0, txn = inst; i < 4; i++) {
-  var transition = zone.getPreviousTransition(txn);
-  assert(transition instanceof Temporal.Instant);
-  assert(!transition.equals(txn));
-  txn = transition;
-}

test/staging/Temporal/TimeZone/old/timezone-offset.js

@@ -14,8 +14,6 @@ assert.sameValue(zone.id, `${ zone }`)
 assert.sameValue(zone.getOffsetNanosecondsFor(inst), 3600000000000)
 assert(zone.getPlainDateTimeFor(inst) instanceof Temporal.PlainDateTime)
 assert(zone.getInstantFor(dtm) instanceof Temporal.Instant)
-assert.sameValue(zone.getNextTransition(inst), null)
-assert.sameValue(zone.getPreviousTransition(inst), null)
 
 // wraps around to the next day
 assert.sameValue(`${ zone.getPlainDateTimeFor(Temporal.Instant.from("2020-02-06T23:59Z")) }`, "2020-02-07T00:59:00")

test/staging/Temporal/TimeZone/old/timezone-utc-offset.js

@@ -14,5 +14,3 @@ assert.sameValue(zone.id, `${ zone }`)
 assert.sameValue(zone.getOffsetNanosecondsFor(inst), 0)
 assert(zone.getPlainDateTimeFor(inst) instanceof Temporal.PlainDateTime)
 assert(zone.getInstantFor(dtm) instanceof Temporal.Instant)
-assert.sameValue(zone.getNextTransition(inst), null)
-assert.sameValue(zone.getPreviousTransition(inst), null)