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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertThrows } from "../assert/mod.ts";import { slidingWindows } from "./sliding_windows.ts";
function slidingWindowsTest<T>(  input: [    collection: T[],    size: number,    config?: { step?: number; partial?: boolean },  ],  expected: T[][],  message?: string,) {  const actual = slidingWindows(...input);  assertEquals(actual, expected, message);}
function slidingWindowsThrowsTest<T>(  input: [    collection: T[],    size: number,    config?: { step?: number; partial?: boolean },  ],  ErrorClass: ErrorConstructor,  msgIncludes?: string,  msg?: string | undefined,) {  assertThrows(    () => {      slidingWindows(...input);    },    ErrorClass,    msgIncludes,    msg,  );}
Deno.test({  name: "slidingWindows() handles no mutation",  fn() {    const numbers = [1, 2, 3, 4, 5];    slidingWindows(numbers, 3);    assertEquals(numbers, [1, 2, 3, 4, 5]);  },});
Deno.test({  name: "slidingWindows() handles empty input",  fn() {    slidingWindowsTest([[], 3], []);    slidingWindowsTest([[], 3, {}], []);    slidingWindowsTest([[], 3, { step: 2 }], []);    slidingWindowsTest([[], 3, { partial: true }], []);    slidingWindowsTest([[], 3, { step: 2, partial: true }], []);  },});
Deno.test({  name: "slidingWindows() handles default option",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 5], [      [1, 2, 3, 4, 5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 3], [      [1, 2, 3],      [2, 3, 4],      [3, 4, 5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 1], [      [1],      [2],      [3],      [4],      [5],    ]);  },});
Deno.test({  name: "slidingWindows() handles step option",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 5, { step: 2 }], [      [1, 2, 3, 4, 5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 3, { step: 2 }], [      [1, 2, 3],      [3, 4, 5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 1, { step: 2 }], [      [1],      [3],      [5],    ]);  },});
Deno.test({  name: "slidingWindows() handles partial option",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 5, { partial: true }], [      [1, 2, 3, 4, 5],      [2, 3, 4, 5],      [3, 4, 5],      [4, 5],      [5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 3, { partial: true }], [      [1, 2, 3],      [2, 3, 4],      [3, 4, 5],      [4, 5],      [5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 1, { partial: true }], [      [1],      [2],      [3],      [4],      [5],    ]);  },});
Deno.test({  name: "slidingWindows() handles step and partial option",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 5, { step: 2, partial: true }], [      [1, 2, 3, 4, 5],      [3, 4, 5],      [5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 3, { step: 2, partial: true }], [      [1, 2, 3],      [3, 4, 5],      [5],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 1, { step: 2, partial: true }], [      [1],      [3],      [5],    ]);  },});
Deno.test({  name: "slidingWindows() handles invalid size or step: other than number",  fn() {    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], NaN],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: NaN }],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      // @ts-ignore: for test      [[1, 2, 3, 4, 5], "invalid"],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      // @ts-ignore: for test      [[1, 2, 3, 4, 5], 3, { step: "invalid" }],      RangeError,      "Both size and step must be positive integer.",    );  },});
Deno.test({  name: "slidingWindows() handles invalid size or step: not integer number",  fn() {    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 0.5],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: 0.5 }],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 1.5],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: 1.5 }],      RangeError,      "Both size and step must be positive integer.",    );  },});
Deno.test({  name: "slidingWindows() handles invalid size or step: not positive number",  fn() {    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 0],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: 0 }],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], -1],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: -1 }],      RangeError,      "Both size and step must be positive integer.",    );  },});
Deno.test({  name: "slidingWindows() handles invalid size or step: infinity",  fn() {    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], Number.NEGATIVE_INFINITY],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: Number.NEGATIVE_INFINITY }],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], Number.POSITIVE_INFINITY],      RangeError,      "Both size and step must be positive integer.",    );    slidingWindowsThrowsTest(      [[1, 2, 3, 4, 5], 3, { step: Number.POSITIVE_INFINITY }],      RangeError,      "Both size and step must be positive integer.",    );  },});
Deno.test({  name: "slidingWindows() handles large size",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 100], []);    slidingWindowsTest([[1, 2, 3, 4, 5], 100, { step: 2 }], []);    slidingWindowsTest([[1, 2, 3, 4, 5], 100, { step: 2, partial: true }], [      [1, 2, 3, 4, 5],      [3, 4, 5],      [5],    ]);  },});
Deno.test({  name: "slidingWindows() handles large step",  fn() {    slidingWindowsTest([[1, 2, 3, 4, 5], 3, { step: 100 }], [      [1, 2, 3],    ]);    slidingWindowsTest([[1, 2, 3, 4, 5], 3, { step: 100, partial: true }], [      [1, 2, 3],    ]);  },});
Deno.test({  name: "slidingWindows() handles empty Array",  fn() {    slidingWindowsTest([Array(5), 5], [      Array(5),    ]);    slidingWindowsTest([Array(5), 3], [      Array(3),      Array(3),      Array(3),    ]);    slidingWindowsTest([Array(5), 1], [      Array(1),      Array(1),      Array(1),      Array(1),      Array(1),    ]);  },});