/
snapshot_preview1_test.ts
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/
snapshot_preview1_test.ts
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// Copyright 2018-2020 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/mod.ts";
import * as path from "../path/mod.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 (Deno.build.os == "windows") {
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",
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 Deno.writeAll(process.stdin, stdin);
}
process.stdin.close();
const stdout = await Deno.readAll(process.stdout);
if (options.stdout) {
assertEquals(new TextDecoder().decode(stdout), options.stdout);
} else {
await Deno.writeAll(Deno.stdout, stdout);
}
process.stdout.close();
const stderr = await Deno.readAll(process.stderr);
if (options.stderr) {
assertEquals(new TextDecoder().decode(stderr), options.stderr);
} else {
await Deno.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",
);
});