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test for all overflow/underflow scenarios

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Adam Shaw 2024-03-20 22:43:16 -04:00 committed by Philip Chimento
parent 6c35fba9b2
commit 6c60904d42
1 changed files with 21 additions and 17 deletions
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38
test/built-ins/Temporal/ZonedDateTime/prototype/round/smallest-unit-day-rounding-modes.js vendored
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@ -40,21 +40,22 @@ class TimeZone extends Temporal.TimeZone {
#count = 0; #count = 0;
#nanoseconds; #nanoseconds;
constructor(nanoseconds) { constructor(todayEpochNanoseconds, tomorrowEpochNanoseconds) {
super("UTC"); super("UTC");
this.#nanoseconds = nanoseconds; this.#nanoseconds = [todayEpochNanoseconds, tomorrowEpochNanoseconds];
} }
getPossibleInstantsFor(dateTime) { getPossibleInstantsFor(dateTime) {
if (++this.#count === 2) { const nanoseconds = this.#nanoseconds[this.#count++];
return [new Temporal.Instant(this.#nanoseconds)]; if (nanoseconds === undefined) {
return super.getPossibleInstantsFor(dateTime);
} }
return super.getPossibleInstantsFor(dateTime); return [new Temporal.Instant(nanoseconds)];
} }
} }
function test(epochNanoseconds, tomorrowEpochNanoseconds, testCases) { function test(epochNanoseconds, todayEpochNanoseconds, tomorrowEpochNanoseconds, testCases) {
for (let [roundingMode, expected] of Object.entries(testCases)) { for (let [roundingMode, expected] of Object.entries(testCases)) {
let timeZone = new TimeZone(tomorrowEpochNanoseconds); let timeZone = new TimeZone(todayEpochNanoseconds, tomorrowEpochNanoseconds);
let zoned = new Temporal.ZonedDateTime(epochNanoseconds, timeZone); let zoned = new Temporal.ZonedDateTime(epochNanoseconds, timeZone);
let result = zoned.round({ smallestUnit: "days", roundingMode }); let result = zoned.round({ smallestUnit: "days", roundingMode });
assert.sameValue(result.epochNanoseconds, expected); assert.sameValue(result.epochNanoseconds, expected);
@ -63,14 +64,14 @@ function test(epochNanoseconds, tomorrowEpochNanoseconds, testCases) {
const oneDay = 24n * 60n * 60n * 1000n * 1000n * 1000n; const oneDay = 24n * 60n * 60n * 1000n * 1000n * 1000n;
test(3n, 10n, { test(3n, undefined, 10n, {
ceil: 10n, // end-of-day according to TimeZone protocol ceil: 10n, // end-of-day according to TimeZone protocol
floor: 0n, floor: 0n,
trunc: 0n, trunc: 0n,
halfExpand: 0n, halfExpand: 0n,
}); });
test(-3n, 10n, { test(-3n, undefined, 10n, {
ceil: 10n, // end-of-day according to TimeZone protocol ceil: 10n, // end-of-day according to TimeZone protocol
floor: -oneDay, floor: -oneDay,
trunc: -oneDay, trunc: -oneDay,
@ -78,16 +79,19 @@ test(-3n, 10n, {
}); });
assert.throws(RangeError, () => { assert.throws(RangeError, () => {
test(-3n, -10n, { test(-3n, 0n, 10n, { ceil: undefined });
ceil: oneDay, }, "instant is before TimeZone protocol's start-of-day");
floor: 0n,
trunc: 0n, assert.throws(RangeError, () => {
halfExpand: 0n, test(-3n, undefined, -10n, { ceil: undefined });
}); }, "instant is after TimeZone protocol's end-of-day");
}, "instant is after TimeZone protocol's end-of-day")
assert.throws(RangeError, () => {
test(0n, 0n, 0n, { ceil: undefined });
}, "instant is within zero-duration day");
// Test values at int64 boundaries. // Test values at int64 boundaries.
test(3n, /*INT64_MAX=*/ 9223372036854775807n, { test(3n, undefined, /*INT64_MAX=*/ 9223372036854775807n, {
ceil: /*INT64_MAX=*/ 9223372036854775807n, // end-of-day according to TimeZone protocol ceil: /*INT64_MAX=*/ 9223372036854775807n, // end-of-day according to TimeZone protocol
floor: 0n, floor: 0n,
trunc: 0n, trunc: 0n,