import { assertEquals } from "../testing/asserts.ts";import { findLastIndex } from "./find_last_index.ts";
function findLastIndexTest<I>( input: [Array<I>, (element: I) => boolean], expected: number | undefined, message?: string,) { const actual = findLastIndex(...input); assertEquals(actual, expected, message);}
Deno.test({ name: "[collections/findLastIndex] empty input", fn() { findLastIndexTest([[], (_) => true], undefined); },});
Deno.test({ name: "[collections/findLastIndex] no matches", fn() { findLastIndexTest([[9, 11, 13], (it) => it % 2 === 0], undefined); findLastIndexTest([["foo", "bar"], (it) => it.startsWith("z")], undefined); },});
Deno.test({ name: "[collections/findLastIndex] only match", fn() { findLastIndexTest([[9, 12, 13], (it) => it % 2 === 0], 1); findLastIndexTest([["zap", "foo", "bar"], (it) => it.startsWith("z")], 0); },});
Deno.test({ name: "[collections/findLastIndex] multiple matches", fn() { findLastIndexTest([[0, 1, 2, 3, 4, 5, 6], (it) => it % 2 === 0], 6); findLastIndexTest( [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], (it) => it % 2 === 0], 8, ); },});