devextreme
Version:
JavaScript/TypeScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (cjs/__internal/scheduler/utils/macro_task_array/methods.test.js)
* Version: 25.2.7
* Build date: Tue May 05 2026
*
* Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var _globals = require("@jest/globals");
var _dispatcher = _interopRequireDefault(require("./dispatcher"));
var _methods = require("./methods");
function _interopRequireDefault(e) {
return e && e.__esModule ? e : {
default: e
}
}
_globals.jest.mock("./dispatcher", () => {
const actualModule = _globals.jest.requireActual("./dispatcher");
return Object.assign({}, actualModule.default, {
schedule: _globals.jest.fn()
})
});
const scheduleFnMock = _globals.jest.fn();
_globals.jest.useFakeTimers();
(0, _globals.describe)("Scheduler", () => {
(0, _globals.describe)("MacroTaskArray", () => {
(0, _globals.describe)("Methods", () => {
(0, _globals.beforeEach)(() => {
scheduleFnMock.mockReset();
_dispatcher.default.schedule = scheduleFnMock
});
(0, _globals.describe)("macroTaskArrayForEach", () => {
_globals.it.each([{
arraySize: 10,
step: 1,
expectedCalls: 10
}, {
arraySize: 10,
step: 2,
expectedCalls: 5
}, {
arraySize: 10,
step: 3,
expectedCalls: 4
}, {
arraySize: 3,
step: 4,
expectedCalls: 1
}, {
arraySize: 0,
step: 10,
expectedCalls: 0
}])("should split array into batches (arraySize = $arraySize | step = $step)", async _ref => {
let {
arraySize: arraySize,
step: step,
expectedCalls: expectedCalls
} = _ref;
await (0, _methods.macroTaskArrayForEach)(new Array(arraySize), _globals.jest.fn(), step);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledTimes(expectedCalls)
});
_globals.it.each([{
arraySize: 10,
step: 1
}, {
arraySize: 10,
step: 2
}, {
arraySize: 10,
step: 3
}, {
arraySize: 3,
step: 4
}, {
arraySize: 0,
step: 10
}])("should call callback for each array item (arraySize = $arraySize | step = $step)", async _ref2 => {
let {
arraySize: arraySize,
step: step
} = _ref2;
const callbackMock = _globals.jest.fn();
scheduleFnMock.mockImplementation(callback => {
callback();
return Promise.resolve()
});
const array = new Array(arraySize).fill(0).map((_, idx) => idx);
await (0, _methods.macroTaskArrayForEach)(array, callbackMock, step);
(0, _globals.expect)(callbackMock).toHaveBeenCalledTimes(arraySize);
(0, _globals.expect)(callbackMock.mock.calls).toEqual(array.map(item => [item]))
});
(0, _globals.it)("should pass macroTaskTimeoutMs to dispatcher", async () => {
await (0, _methods.macroTaskArrayForEach)(new Array(10), _globals.jest.fn(), 100, 12345);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledTimes(1);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledWith(_globals.expect.anything(), 12345)
})
});
(0, _globals.describe)("macroTaskArrayMap", () => {
_globals.it.each([{
arraySize: 10,
step: 1,
expectedCalls: 10
}, {
arraySize: 10,
step: 2,
expectedCalls: 5
}, {
arraySize: 10,
step: 3,
expectedCalls: 4
}, {
arraySize: 3,
step: 4,
expectedCalls: 1
}, {
arraySize: 0,
step: 10,
expectedCalls: 0
}])("should split array into batches (arraySize = $arraySize | step = $step)", async _ref3 => {
let {
arraySize: arraySize,
step: step,
expectedCalls: expectedCalls
} = _ref3;
await (0, _methods.macroTaskArrayMap)(new Array(arraySize), _globals.jest.fn(), step);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledTimes(expectedCalls)
});
_globals.it.each([{
arraySize: 10,
step: 1
}, {
arraySize: 10,
step: 2
}, {
arraySize: 10,
step: 3
}, {
arraySize: 3,
step: 4
}, {
arraySize: 0,
step: 10
}])("should call callback for each array item (arraySize = $arraySize | step = $step)", async _ref4 => {
let {
arraySize: arraySize,
step: step
} = _ref4;
const callbackMock = _globals.jest.fn();
scheduleFnMock.mockImplementation(callback => {
callback();
return Promise.resolve()
});
const array = new Array(arraySize).fill(0).map((_, idx) => idx);
await (0, _methods.macroTaskArrayMap)(array, callbackMock, step);
(0, _globals.expect)(callbackMock).toHaveBeenCalledTimes(arraySize);
(0, _globals.expect)(callbackMock.mock.calls).toEqual(array.map(item => [item]))
});
(0, _globals.it)("should return mapped result", async () => {
const callbackFn = item => `${item}_processed`;
scheduleFnMock.mockImplementation(callback => {
callback();
return Promise.resolve()
});
const array = new Array(10).fill(0).map((_, idx) => idx);
const result = await (0, _methods.macroTaskArrayMap)(array, callbackFn, 10);
(0, _globals.expect)(result).toEqual(array.map(callbackFn))
});
(0, _globals.it)("should pass macroTaskTimeoutMs to dispatcher", async () => {
await (0, _methods.macroTaskArrayMap)(new Array(10), _globals.jest.fn(), 100, 12345);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledTimes(1);
(0, _globals.expect)(scheduleFnMock).toHaveBeenCalledWith(_globals.expect.anything(), 12345)
})
})
})
})
});