4b52727976
- remove default for version - updates tests to specify version - add test for when version is not specified Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: https://github.com/nodejs/node/pull/47391 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
33 lines
1.3 KiB
JavaScript
33 lines
1.3 KiB
JavaScript
'use strict';
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const common = require('../common');
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const tmpdir = require('../common/tmpdir');
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const { strictEqual } = require('assert');
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const { closeSync, openSync, readFileSync, writeFileSync } = require('fs');
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const { join } = require('path');
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const { WASI } = require('wasi');
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const modulePath = join(__dirname, 'wasm', 'stdin.wasm');
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const buffer = readFileSync(modulePath);
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const stdinFile = join(tmpdir.path, 'stdin.txt');
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const stdoutFile = join(tmpdir.path, 'stdout.txt');
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const stderrFile = join(tmpdir.path, 'stderr.txt');
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tmpdir.refresh();
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// Write 33 x's. The test's buffer only holds 31 x's + a terminator.
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writeFileSync(stdinFile, 'x'.repeat(33));
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const stdin = openSync(stdinFile, 'r');
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const stdout = openSync(stdoutFile, 'a');
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const stderr = openSync(stderrFile, 'a');
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const wasi = new WASI({ version: 'preview1', stdin, stdout, stderr, returnOnExit: true });
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const importObject = { wasi_snapshot_preview1: wasi.wasiImport };
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(async () => {
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const { instance } = await WebAssembly.instantiate(buffer, importObject);
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strictEqual(wasi.start(instance), 0);
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closeSync(stdin);
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closeSync(stdout);
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closeSync(stderr);
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strictEqual(readFileSync(stdoutFile, 'utf8').trim(), 'x'.repeat(31));
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strictEqual(readFileSync(stderrFile, 'utf8').trim(), '');
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})().then(common.mustCall());
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