test: cover Node SEA compatibility

test/sea.test.js

@@ -0,0 +1,51 @@
+'use strict'
+
+const fs = require('fs')
+const Module = require('module')
+const path = require('path')
+const vm = require('vm')
+const test = require('tape')
+
+test('loads and hooks modules when require.resolve is unavailable', function (t) {
+  const filename = path.join(__dirname, '..', 'index.js')
+  const source = fs.readFileSync(filename, 'utf8')
+  const indexModule = {
+    exports: {},
+    filename,
+    paths: Module._nodeModulePaths(path.dirname(filename))
+  }
+  const requireFromIndex = require('module').createRequire
+    ? require('module').createRequire(filename)
+    : require
+  const seaRequire = function (id) {
+    return requireFromIndex(id)
+  }
+
+  // Node SEA does not expose require.resolve. Keep the other properties used
+  // by the module loader so this only models that SEA-specific difference.
+  seaRequire.cache = require.cache
+
+  const wrapper = vm.runInThisContext(Module.wrap(source), { filename })
+  t.doesNotThrow(function () {
+    wrapper.call(
+      indexModule.exports,
+      indexModule.exports,
+      seaRequire,
+      indexModule,
+      filename,
+      path.dirname(filename)
+    )
+  })
+
+  t.equal(typeof indexModule.exports.Hook, 'function')
+
+  const hook = new indexModule.exports.Hook(['path'], function (exports) {
+    return exports
+  })
+  t.doesNotThrow(function () {
+    requireFromIndex('path')
+  })
+  hook.unhook()
+
+  t.end()
+})