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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import Context from "./snapshot_preview1.ts";import { assertEquals, assertThrows } from "../testing/asserts.ts";import { copy } from "../fs/copy.ts";import * as path from "../path/mod.ts";import { readAll, writeAll } from "../streams/conversion.ts";import { isWindows } from "../_util/os.ts";
const tests = [ "testdata/std_env_args.wasm", "testdata/std_env_vars.wasm", "testdata/std_fs_create_dir.wasm", "testdata/std_fs_file_create.wasm", "testdata/std_fs_file_metadata.wasm", "testdata/std_fs_file_seek.wasm", "testdata/std_fs_file_set_len.wasm", "testdata/std_fs_file_sync_all.wasm", "testdata/std_fs_file_sync_data.wasm", "testdata/std_fs_hard_link.wasm", "testdata/std_fs_metadata.wasm", "testdata/std_fs_read.wasm", "testdata/std_fs_read_dir.wasm", "testdata/std_fs_remove_dir_all.wasm", "testdata/std_fs_rename.wasm", "testdata/std_fs_symlink_metadata.wasm", "testdata/std_fs_write.wasm", "testdata/std_io_stderr.wasm", "testdata/std_io_stdin.wasm", "testdata/std_io_stdout.wasm", "testdata/std_process_exit.wasm", "testdata/wasi_clock_res_get.wasm", "testdata/wasi_clock_time_get.wasm", "testdata/wasi_fd_fdstat_get.wasm", "testdata/wasi_fd_fdstat_get.wasm", "testdata/wasi_fd_fdstat_get.wasm", "testdata/wasi_fd_renumber.wasm", "testdata/wasi_fd_tell_file.wasm", "testdata/wasi_fd_write_file.wasm", "testdata/wasi_fd_write_stderr.wasm", "testdata/wasi_fd_write_stdout.wasm", "testdata/wasi_path_open.wasm", "testdata/wasi_proc_exit.wasm", "testdata/wasi_random_get.wasm", "testdata/wasi_sched_yield.wasm",];
const ignore = [];
// TODO(caspervonb) investigate why these tests are failing on windows and fix// them.// The failing tests all involve symlinks in some way, my best guess so far is// that there's something going wrong with copying the symlinks over to the// temporary working directory, but only in some cases.if (isWindows) { ignore.push("testdata/std_fs_metadata.wasm"); ignore.push("testdata/std_fs_read_dir.wasm"); ignore.push("testdata/wasi_path_open.wasm");}
const rootdir = path.dirname(path.fromFileUrl(import.meta.url));const testdir = path.join(rootdir, "testdata");
for (const pathname of tests) { Deno.test({ name: path.basename(pathname), ignore: ignore.includes(pathname), fn: async function () { const prelude = await Deno.readTextFile( path.resolve(rootdir, pathname.replace(/\.wasm$/, ".json")), ); const options = JSON.parse(prelude);
// TODO(caspervonb) investigate more. // On Windows creating a tempdir in the default directory breaks nearly // all the tests, possibly due to symlinks pointing to the original file // which crosses drive boundaries. const workdir = await Deno.makeTempDir({ dir: testdir, });
await copy( path.join(testdir, "fixtures"), path.join(workdir, "fixtures"), );
try { const process = await Deno.run({ cwd: workdir, cmd: [ `${Deno.execPath()}`, "run", "--quiet", "--unstable", "--allow-all", "--no-check", path.resolve(rootdir, "snapshot_preview1_test_runner.ts"), prelude, path.resolve(rootdir, pathname), ], stdin: "piped", stdout: "piped", stderr: "piped", });
if (options.stdin) { const stdin = new TextEncoder().encode(options.stdin); await writeAll(process.stdin, stdin); }
process.stdin.close();
const stdout = await readAll(process.stdout);
if (options.stdout) { assertEquals(new TextDecoder().decode(stdout), options.stdout); } else { await writeAll(Deno.stdout, stdout); }
process.stdout.close();
const stderr = await readAll(process.stderr);
if (options.stderr) { assertEquals(new TextDecoder().decode(stderr), options.stderr); } else { await writeAll(Deno.stderr, stderr); }
process.stderr.close();
const status = await process.status(); assertEquals(status.code, options.exitCode ? +options.exitCode : 0);
process.close(); } catch (err) { throw err; } finally { await Deno.remove(workdir, { recursive: true }); } }, });}
Deno.test("context_start", function () { assertThrows( () => { const context = new Context({}); context.start({ exports: { _start() {}, }, }); }, TypeError, "must provide a memory export", );
assertThrows( () => { const context = new Context({}); context.start({ exports: { _initialize() {}, memory: new WebAssembly.Memory({ initial: 1 }), }, }); }, TypeError, "export _initialize must not be a function", );
assertThrows( () => { const context = new Context({}); context.start({ exports: { memory: new WebAssembly.Memory({ initial: 1 }), }, }); }, TypeError, "export _start must be a function", );
{ const context = new Context({ exitOnReturn: false, }); const exitCode = context.start({ exports: { _start() { }, memory: new WebAssembly.Memory({ initial: 1 }), }, }); assertEquals(exitCode, null); }
{ const context = new Context({ exitOnReturn: false, }); const exitCode = context.start({ exports: { _start() { const exit = context.exports["proc_exit"] as CallableFunction; exit(0); }, memory: new WebAssembly.Memory({ initial: 1 }), }, }); assertEquals(exitCode, 0); }
assertThrows( () => { const context = new Context({}); context.start({ exports: { memory: new WebAssembly.Memory({ initial: 1 }), _start() {}, }, }); context.start({ exports: {}, }); }, Error, "WebAssembly.Instance has already started", );});
Deno.test("context_initialize", function () { assertThrows( () => { const context = new Context({}); context.initialize({ exports: { _initialize() {}, }, }); }, TypeError, "must provide a memory export", );
assertThrows( () => { const context = new Context({}); context.initialize({ exports: { _start() {}, memory: new WebAssembly.Memory({ initial: 1 }), }, }); }, TypeError, "export _start must not be a function", );
assertThrows( () => { const context = new Context({}); context.initialize({ exports: { memory: new WebAssembly.Memory({ initial: 1 }), }, }); }, TypeError, "export _initialize must be a function", ); assertThrows( () => { const context = new Context({}); context.initialize({ exports: { memory: new WebAssembly.Memory({ initial: 1 }), _initialize() {}, }, }); context.initialize({ exports: {}, }); }, Error, "WebAssembly.Instance has already started", );});
Deno.test("std_io_stdin.wasm with stdin as file", function () { const stdinPath = Deno.makeTempFileSync(); Deno.writeTextFileSync(stdinPath, "Hello, stdin!");
const stdinFile = Deno.openSync(stdinPath);
const context = new Context({ exitOnReturn: false, stdin: stdinFile.rid, });
const binary = Deno.readFileSync(path.join(testdir, "std_io_stdin.wasm")); const module = new WebAssembly.Module(binary); const instance = new WebAssembly.Instance(module, { wasi_snapshot_preview1: context.exports, });
context.start(instance);
stdinFile.close();});
Deno.test("std_io_stdout.wasm with stdout as file", function () { const stdoutPath = Deno.makeTempFileSync(); const stdoutFile = Deno.openSync(stdoutPath, { create: true, write: true });
const context = new Context({ exitOnReturn: false, stdout: stdoutFile.rid, });
const binary = Deno.readFileSync(path.join(testdir, "std_io_stdout.wasm")); const module = new WebAssembly.Module(binary); const instance = new WebAssembly.Instance(module, { wasi_snapshot_preview1: context.exports, });
context.start(instance);
stdoutFile.close();
assertEquals(Deno.readTextFileSync(stdoutPath), "Hello, stdout!");});
Deno.test("std_io_stderr.wasm with stderr as file", function () { const stderrPath = Deno.makeTempFileSync(); const stderrFile = Deno.openSync(stderrPath, { create: true, write: true });
const context = new Context({ exitOnReturn: false, stderr: stderrFile.rid, });
const binary = Deno.readFileSync(path.join(testdir, "std_io_stderr.wasm")); const module = new WebAssembly.Module(binary); const instance = new WebAssembly.Instance(module, { wasi_snapshot_preview1: context.exports, });
context.start(instance);
stderrFile.close();
assertEquals(Deno.readTextFileSync(stderrPath), "Hello, stderr!");});