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test.ts
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test.ts
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import { describe, expect, it } from "vitest";
import { intervalToDuration } from "./index.js";
import { addMonths } from "../addMonths/index.js";
describe("intervalToDuration", () => {
it("returns correct duration for arbitrary dates", () => {
const start = new Date(1929, 0, 15, 12, 0, 0);
const end = new Date(1968, 3, 4, 19, 5, 0);
const result = intervalToDuration({ start, end });
expect(result).toEqual({
years: 39,
months: 2,
days: 20,
hours: 7,
minutes: 5,
});
});
it("returns correct duration (1 of everything)", () => {
const start = new Date(2020, 2, 1, 12, 0, 0);
const end = new Date(2021, 3, 2, 13, 1, 1);
const result = intervalToDuration({ start, end });
expect(result).toEqual({
years: 1,
months: 1,
days: 1,
hours: 1,
minutes: 1,
seconds: 1,
});
});
it("returns duration of 0 when the dates are the same", () => {
const start = new Date(2020, 2, 1, 12, 0, 0);
const end = new Date(2020, 2, 1, 12, 0, 0);
const result = intervalToDuration({ start, end });
expect(result).toEqual({});
});
it("returns a negative duration if interval's start date is greater than its end date", () => {
const interval = {
start: new Date(2020, 3, 1),
end: new Date(2020, 2, 1),
};
const result = intervalToDuration(interval);
expect(result).toEqual({ months: -1 });
});
it("returns an empty object if interval's start date invalid", () => {
const interval = {
start: new Date(NaN),
end: new Date(2020, 0, 1),
};
const result = intervalToDuration(interval);
expect(result).toEqual({});
});
it("returns an empty object if interval's end date invalid", () => {
const interval = {
start: new Date(2020, 0, 1),
end: new Date(NaN),
};
const result = intervalToDuration(interval);
expect(result).toEqual({});
});
describe("includeZeroValues", () => {
it("return zero value as properties", () => {
const start = new Date(1929, 0, 15, 12, 0, 0);
const end = new Date(1968, 3, 4, 19, 5, 0);
const result = intervalToDuration(
{ start, end },
{ includeZeroValues: true },
);
expect(result).toEqual({
years: 39,
months: 2,
days: 20,
hours: 7,
minutes: 5,
seconds: 0,
});
});
it("returns zero values when the dates are the same", () => {
const start = new Date(2020, 2, 1, 12, 0, 0);
const end = new Date(2020, 2, 1, 12, 0, 0);
const result = intervalToDuration(
{ start, end },
{ includeZeroValues: true },
);
expect(result).toEqual({
years: 0,
months: 0,
days: 0,
hours: 0,
minutes: 0,
seconds: 0,
});
});
it("exclude zero value when 'includeZeroValues' is false", () => {
const start = new Date(1929, 0, 15, 12, 0, 0);
const end = new Date(1968, 3, 4, 19, 5, 0);
const result = intervalToDuration(
{ start, end },
{ includeZeroValues: false },
);
expect(result).toEqual({
years: 39,
months: 2,
days: 20,
hours: 7,
minutes: 5,
});
});
it("returns duration of 0 when 'includeZeroValues' is false and the dates are the same", () => {
const start = new Date(2020, 2, 1, 12, 0, 0);
const end = new Date(2020, 2, 1, 12, 0, 0);
const result = intervalToDuration(
{ start, end },
{ includeZeroValues: false },
);
expect(result).toEqual({});
});
});
describe("edge cases", () => {
it("returns correct duration for dates in the end of Feb - issue 2255", () => {
expect(intervalToDuration({
start: new Date(2012, 1 /* Feb */, 28, 9, 0, 0),
end: new Date(2012, 1 /* Feb */, 29, 10, 0, 0),
})).toEqual({
days: 1,
hours: 1,
});
expect(intervalToDuration({
start: new Date(2012, 1 /* Feb */, 29, 9, 0, 0),
end: new Date(2012, 1 /* Feb */, 29, 10, 0, 0),
})).toEqual({
hours: 1,
});
expect(intervalToDuration({
start: new Date(2012, 1 /* Feb */, 28, 9, 0, 0),
end: new Date(2012, 1 /* Feb */, 28, 10, 0, 0),
})).toEqual({
hours: 1,
});
// Issue 2261
expect(intervalToDuration({
start: new Date(2021, 1 /* Feb */, 28, 7, 23, 7),
end: new Date(2021, 1 /* Feb */, 28, 7, 38, 18),
})).toEqual({
minutes: 15,
seconds: 11,
});
});
it("returns correct duration for end of month start dates - issue 2611", () => {
const start = new Date(2021, 7, 31);
const end = addMonths(start, 1);
expect(end).toEqual(new Date(2021, 8, 30));
const duration = intervalToDuration({ start, end });
const expectedDuration = {
months: 1,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 29 on leap year + 1 month - issue 1778", () => {
const duration = intervalToDuration({
start: new Date(2020, 1, 29),
end: new Date(2020, 2, 29),
});
const expectedDuration = {
months: 1,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 28 to Apr 30 interval - issue 2910", () => {
const duration = intervalToDuration({
start: new Date(2022, 1, 28),
end: new Date(2022, 3, 30),
});
const expectedDuration = {
months: 2,
days: 2,
};
expect(duration).toEqual(expectedDuration);
});
describe("issue 2470", () => {
it("returns correct duration for Feb 28 to Aug 31 interval", () => {
const duration = intervalToDuration({
start: new Date(2021, 1, 28),
end: new Date(2021, 7, 31),
});
const expectedDuration = {
months: 6,
days: 3,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 28 to Aug 30 interval", () => {
const duration = intervalToDuration({
start: new Date(2021, 1, 28),
end: new Date(2021, 7, 30),
});
const expectedDuration = {
months: 6,
days: 2,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 28 to Aug 29 interval", () => {
const duration = intervalToDuration({
start: new Date(2021, 1, 28),
end: new Date(2021, 7, 29),
});
const expectedDuration = {
months: 6,
days: 1,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 28 to Aug 28 interval", () => {
const duration = intervalToDuration({
start: new Date(2021, 1, 28),
end: new Date(2021, 7, 28),
});
const expectedDuration = {
months: 6,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Feb 28 to Aug 27 interval", () => {
// Feb 28 to July 28 is 5 months, July 28 to Aug 27 is 30 days
const duration = intervalToDuration({
start: new Date(2021, 1, 28),
end: new Date(2021, 7, 27),
});
const expectedDuration = {
months: 5,
days: 30,
};
expect(duration).toEqual(expectedDuration);
});
it("returns correct duration for Apr 30 to May 31 interval", () => {
const duration = intervalToDuration({
start: new Date(2021, 3, 30),
end: new Date(2021, 4, 31),
});
const expectedDuration = {
months: 1,
days: 1,
};
expect(duration).toEqual(expectedDuration);
});
});
});
});