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std/node/module_test.ts

Deno standard library
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals, assertStringIncludes,} from "../testing/asserts.ts";
import * as path from "../path/mod.ts";import { createRequire } from "./module.ts";
const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));const testdataDir = path.resolve(moduleDir, path.join("_fs", "testdata"));
const require = createRequire(import.meta.url);
Deno.test("requireSuccess", function () { // Relative to import.meta.url const result = require("./tests/cjs/cjs_a.js"); assert("helloA" in result); assert("helloB" in result); assert("C" in result); assert("leftPad" in result); assertEquals(result.helloA(), "A"); assertEquals(result.helloB(), "B"); assertEquals(result.C, "C"); assertEquals(result.leftPad("pad", 4), " pad");});
Deno.test("requireCycle", function () { const resultA = require("./tests/cjs/cjs_cycle_a"); const resultB = require("./tests/cjs/cjs_cycle_b"); assert(resultA); assert(resultB);});
Deno.test("requireBuiltin", function () { const fs = require("fs"); assert("readFileSync" in fs); const { readFileSync, isNull, extname } = require("./tests/cjs/cjs_builtin");
const testData = path.relative( Deno.cwd(), path.join(testdataDir, "hello.txt"), ); assertEquals( readFileSync(testData, { encoding: "utf8" }), "hello world", ); assert(isNull(null)); assertEquals(extname("index.html"), ".html");});
Deno.test("requireIndexJS", function () { const { isIndex } = require("./tests/cjs"); assert(isIndex);});
Deno.test("requireNodeOs", function () { const os = require("os"); assert(os.arch); assert(typeof os.arch() == "string");});
Deno.test("requireStack", function () { const { hello } = require("./tests/cjs/cjs_throw"); try { hello(); } catch (e) { assertStringIncludes(e.stack, "/tests/cjs/cjs_throw.js"); }});