test: add test of policy about parse error

PR-URL: https://github.com/nodejs/node/pull/26873
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-policy-parse-integrity.js

@@ -0,0 +1,86 @@
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto) common.skip('missing crypto');
+
+const tmpdir = require('../common/tmpdir');
+const assert = require('assert');
+const { spawnSync } = require('child_process');
+const crypto = require('crypto');
+const fs = require('fs');
+const path = require('path');
+const { pathToFileURL } = require('url');
+
+tmpdir.refresh();
+
+function hash(algo, body) {
+  const h = crypto.createHash(algo);
+  h.update(body);
+  return h.digest('base64');
+}
+
+const policyFilepath = path.join(tmpdir.path, 'policy');
+
+const parentFilepath = path.join(tmpdir.path, 'parent.js');
+const parentBody = "require('./dep.js')";
+
+const depFilepath = path.join(tmpdir.path, 'dep.js');
+const depURL = pathToFileURL(depFilepath);
+const depBody = '';
+
+fs.writeFileSync(parentFilepath, parentBody);
+fs.writeFileSync(depFilepath, depBody);
+
+const tmpdirURL = pathToFileURL(tmpdir.path);
+if (!tmpdirURL.pathname.endsWith('/')) {
+  tmpdirURL.pathname += '/';
+}
+
+function test({ shouldFail, integrity }) {
+  const resources = {
+    [depURL]: {
+      body: depBody,
+      integrity
+    }
+  };
+  const manifest = {
+    resources: {},
+  };
+  for (const [url, { body, integrity }] of Object.entries(resources)) {
+    manifest.resources[url] = {
+      integrity,
+    };
+    fs.writeFileSync(new URL(url, tmpdirURL.href), body);
+  }
+  fs.writeFileSync(policyFilepath, JSON.stringify(manifest, null, 2));
+  const { status } = spawnSync(process.execPath, [
+    '--experimental-policy',
+    policyFilepath,
+    depFilepath
+  ]);
+  if (shouldFail) {
+    assert.notStrictEqual(status, 0);
+  } else {
+    assert.strictEqual(status, 0);
+  }
+}
+
+test({
+  shouldFail: false,
+  integrity: `sha256-${hash('sha256', depBody)}`,
+});
+test({
+  shouldFail: true,
+  integrity: `1sha256-${hash('sha256', depBody)}`,
+});
+test({
+  shouldFail: true,
+  integrity: 'hoge',
+});
+test({
+  shouldFail: true,
+  integrity: `sha256-${hash('sha256', depBody)}sha256-${hash(
+    'sha256',
+    depBody
+  )}`,
+});