import { assert, assertEquals } from "../assert/mod.ts";import { concat } from "./concat.ts";
Deno.test("concat()", () => { const encoder = new TextEncoder(); const u1 = encoder.encode("Hello "); const u2 = encoder.encode("World"); const joined = concat([u1, u2]); assertEquals(new TextDecoder().decode(joined), "Hello World"); assert(u1 !== joined); assert(u2 !== joined);});
Deno.test("concat() handles empty arrays", () => { const u1 = new Uint8Array(); const u2 = new Uint8Array(); const joined = concat([u1, u2]); assertEquals(joined.byteLength, 0); assert(u1 !== joined); assert(u2 !== joined);});
Deno.test("concat() handles multiple Uint8Array", () => { const encoder = new TextEncoder(); const u1 = encoder.encode("Hello "); const u2 = encoder.encode("W"); const u3 = encoder.encode("o"); const u4 = encoder.encode("r"); const u5 = encoder.encode("l"); const u6 = encoder.encode("d"); const joined = concat([u1, u2, u3, u4, u5, u6]); assertEquals(new TextDecoder().decode(joined), "Hello World"); assert(u1 !== joined); assert(u2 !== joined);});
Deno.test("concat() handles an array of Uint8Array", () => { const a = [ new Uint8Array([0, 1, 2, 3]), new Uint8Array([4, 5, 6]), new Uint8Array([7, 8, 9]), ]; const joined = concat(a); const expected = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]); assertEquals(joined, expected);});