PlainDate.from.js 1.8 KB

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  1. describe("correct behavior", () => {
  2. test("length is 1", () => {
  3. expect(Temporal.PlainDate.from).toHaveLength(1);
  4. });
  5. test("PlainDate instance argument", () => {
  6. const plainDate = new Temporal.PlainDate(2021, 7, 26);
  7. const createdPlainDate = Temporal.PlainDate.from(plainDate);
  8. expect(createdPlainDate.year).toBe(2021);
  9. expect(createdPlainDate.month).toBe(7);
  10. expect(createdPlainDate.day).toBe(26);
  11. });
  12. test("PlainDateTime instance argument", () => {
  13. const plainDateTime = new Temporal.PlainDateTime(2021, 7, 26, 1, 2, 3);
  14. const createdPlainDate = Temporal.PlainDate.from(plainDateTime);
  15. expect(createdPlainDate.year).toBe(2021);
  16. expect(createdPlainDate.month).toBe(7);
  17. expect(createdPlainDate.day).toBe(26);
  18. });
  19. test("ZonedDateTime instance argument", () => {
  20. const timeZone = new Temporal.TimeZone("UTC");
  21. const zonedDateTime = new Temporal.ZonedDateTime(1627318123456789000n, timeZone);
  22. const createdPlainDate = Temporal.PlainDate.from(zonedDateTime);
  23. expect(createdPlainDate.year).toBe(2021);
  24. expect(createdPlainDate.month).toBe(7);
  25. expect(createdPlainDate.day).toBe(26);
  26. });
  27. test("PlainDate string argument", () => {
  28. const createdPlainDate = Temporal.PlainDate.from("2021-07-26");
  29. expect(createdPlainDate.year).toBe(2021);
  30. expect(createdPlainDate.month).toBe(7);
  31. expect(createdPlainDate.day).toBe(26);
  32. });
  33. });
  34. describe("errors", () => {
  35. test("custom time zone doesn't have a getOffsetNanosecondsFor function", () => {
  36. const zonedDateTime = new Temporal.ZonedDateTime(0n, {});
  37. expect(() => {
  38. Temporal.PlainDate.from(zonedDateTime);
  39. }).toThrowWithMessage(TypeError, "null is not a function");
  40. });
  41. });