mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 12:05:07 +00:00
d4d9222eea
The constructor with a string argument isn't implemented yet, but this implements the other variants. The timestamp constructor doens't handle negative timestamps correctly. Out-of-bound and invalid arguments aren't handled correctly.
47 lines
2.2 KiB
JavaScript
47 lines
2.2 KiB
JavaScript
test("basic functionality", () => {
|
|
expect(Date).toHaveLength(7);
|
|
expect(Date.name === "Date");
|
|
expect(Date.prototype).not.toHaveProperty("length");
|
|
});
|
|
|
|
test("timestamp constructor", () => {
|
|
// The timestamp constructor takes a timestamp in milliseconds since the start of the epoch, in UTC.
|
|
|
|
// 50 days and 1234 milliseconds after the start of the epoch.
|
|
// Most Date methods return values in local time, but since timezone offsets are less than 17 days,
|
|
// these checks will pass in all timezones.
|
|
let timestamp = 50 * 24 * 60 * 60 * 1000 + 1234;
|
|
|
|
let date = new Date(timestamp);
|
|
expect(date.getTime()).toBe(timestamp); // getTime() returns the timestamp in UTC.
|
|
expect(date.getMilliseconds()).toBe(234);
|
|
expect(date.getSeconds()).toBe(1);
|
|
expect(date.getFullYear()).toBe(1970);
|
|
expect(date.getMonth()).toBe(1); // Feb
|
|
});
|
|
|
|
test("tuple constructor", () => {
|
|
// The tuple constructor takes a date in local time.
|
|
expect(new Date(2019, 11).getFullYear()).toBe(2019);
|
|
expect(new Date(2019, 11).getMonth()).toBe(11);
|
|
expect(new Date(2019, 11).getDate()).toBe(1); // getDay() returns day of week, getDate() returnsn day in month
|
|
expect(new Date(2019, 11).getHours()).toBe(0);
|
|
expect(new Date(2019, 11).getMinutes()).toBe(0);
|
|
expect(new Date(2019, 11).getSeconds()).toBe(0);
|
|
expect(new Date(2019, 11).getMilliseconds()).toBe(0);
|
|
|
|
let date = new Date(2019, 11, 15, 9, 16, 14, 123); // Note: Month is 0-based.
|
|
expect(date.getFullYear()).toBe(2019);
|
|
expect(date.getMonth()).toBe(11);
|
|
expect(date.getDate()).toBe(15);
|
|
expect(date.getHours()).toBe(9);
|
|
expect(date.getMinutes()).toBe(16);
|
|
expect(date.getSeconds()).toBe(14);
|
|
expect(date.getMilliseconds()).toBe(123);
|
|
|
|
// getTime() returns a time stamp in UTC, but we can at least check it's in the right interval, which will be true independent of the local timezone if the range is big enough.
|
|
let timestamp_lower_bound = 1575072000000; // 2019-12-01T00:00:00Z
|
|
let timestamp_upper_bound = 1577750400000; // 2019-12-31T00:00:00Z
|
|
expect(date.getTime()).toBeGreaterThan(timestamp_lower_bound);
|
|
expect(date.getTime()).toBeLessThan(timestamp_upper_bound);
|
|
});
|