// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. import { stripColor } from "@test_util/std/fmt/colors.ts"; import { assert, assertStrictEquals } from "@test_util/std/assert/mod.ts"; import { AssertionError } from "node:assert"; Deno.test({ name: "construct AssertionError() with given message", fn() { const err = new AssertionError( { message: "answer", actual: "42", expected: "42", operator: "notStrictEqual", }, ); assertStrictEquals(err.name, "AssertionError"); assertStrictEquals(err.message, "answer"); assertStrictEquals(err.generatedMessage, false); assertStrictEquals(err.code, "ERR_ASSERTION"); assertStrictEquals(err.actual, "42"); assertStrictEquals(err.expected, "42"); assertStrictEquals(err.operator, "notStrictEqual"); }, }); Deno.test({ name: "construct AssertionError() with generated message", fn() { const err = new AssertionError( { actual: 1, expected: 2, operator: "equal" }, ); assertStrictEquals(err.name, "AssertionError"); assertStrictEquals(stripColor(err.message), "1 equal 2"); assertStrictEquals(err.generatedMessage, true); assertStrictEquals(err.code, "ERR_ASSERTION"); assertStrictEquals(err.actual, 1); assertStrictEquals(err.expected, 2); assertStrictEquals(err.operator, "equal"); }, }); Deno.test({ name: "construct AssertionError() with stackStartFn", fn: function stackStartFn() { const expected = /node/; const err = new AssertionError({ actual: "deno", expected, operator: "match", stackStartFn, }); assertStrictEquals(err.name, "AssertionError"); assertStrictEquals(stripColor(err.message), `'deno' match /node/`); assertStrictEquals(err.generatedMessage, true); assertStrictEquals(err.code, "ERR_ASSERTION"); assertStrictEquals(err.actual, "deno"); assertStrictEquals(err.expected, expected); assertStrictEquals(err.operator, "match"); assert(err.stack, "error should have a stack"); assert( !err.stack?.includes("stackStartFn"), "stackStartFn() should not present in stack trace", ); }, });