chore: import upstream snapshot with attribution

web/tests/node/test_module_load.js

@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+// Load Emscripten Module, need to change path to root/lib
+const path = require("path");
+const fs = require("fs");
+const assert = require("assert");
+const tvmjs = require("../../dist");
+
+const wasmPath = tvmjs.wasmPath();
+const wasmSource = fs.readFileSync(path.join(wasmPath, "test_addone.wasm"));
+
+const tvm = new tvmjs.Instance(
+  new WebAssembly.Module(wasmSource),
+  tvmjs.createPolyfillWASI()
+);
+
+
+function randomArray(length, max) {
+  return Array.apply(null, Array(length)).map(function () {
+    return Math.random() * max;
+  });
+}
+
+test("add one", () => {
+  tvm.beginScope();
+  // Load system library
+  const sysLib = tvm.systemLib();
+  // grab pre-loaded function
+  const faddOne = sysLib.getFunction("add_one");
+  tvm.detachFromCurrentScope(faddOne);
+
+  assert(tvm.isPackedFunc(faddOne));
+  const n = 124;
+  const A = tvm.empty(n).copyFrom(randomArray(n, 1));
+  const B = tvm.empty(n);
+  // call the function.
+  faddOne(A, B);
+  const AA = A.toArray(); // retrieve values in js array
+  const BB = B.toArray(); // retrieve values in js array
+  // verify
+  for (var i = 0; i < BB.length; ++i) {
+    assert(Math.abs(BB[i] - (AA[i] + 1)) < 1e-5);
+  }
+  tvm.endScope();
+
+  // assert auto release scope behavior
+  assert(sysLib.getHandle(false) == 0);
+  // fadd is not released because it is detached
+  assert(faddOne._tvmPackedCell.handle != 0);
+  faddOne.dispose();
+  assert(A.getHandle(false) == 0);
+  assert(B.getHandle(false) == 0);
+});