1 files changed, 147 insertions, 0 deletions
diff --git a/libdeno/libdeno_test.js b/libdeno/libdeno_test.js
new file mode 100644
index 000000000..10905494c
--- /dev/null
+++ b/libdeno/libdeno_test.js
@@ -0,0 +1,147 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+
+// A simple runtime that doesn't involve typescript or protobufs to test
+// libdeno. Invoked by libdeno_test.cc
+
+const global = this;
+
+function assert(cond) {
+  if (!cond) throw Error("libdeno_test.js assert failed");
+}
+
+global.CanCallFunction = () => {
+  libdeno.print("Hello world from foo");
+  return "foo";
+};
+
+// This object is created to test snapshotting.
+// See DeserializeInternalFieldsCallback and SerializeInternalFieldsCallback.
+const snapshotted = new Uint8Array([1, 3, 3, 7]);
+
+global.TypedArraySnapshots = () => {
+  assert(snapshotted[0] === 1);
+  assert(snapshotted[1] === 3);
+  assert(snapshotted[2] === 3);
+  assert(snapshotted[3] === 7);
+};
+
+global.SendSuccess = () => {
+  libdeno.recv(msg => {
+    libdeno.print("SendSuccess: ok");
+  });
+};
+
+global.SendWrongByteLength = () => {
+  libdeno.recv(msg => {
+    assert(msg.byteLength === 3);
+  });
+};
+
+global.RecvReturnEmpty = () => {
+  const m1 = new Uint8Array("abc".split("").map(c => c.charCodeAt(0)));
+  const m2 = m1.slice();
+  const r1 = libdeno.send(m1);
+  assert(r1 == null);
+  const r2 = libdeno.send(m2);
+  assert(r2 == null);
+};
+
+global.RecvReturnBar = () => {
+  const m = new Uint8Array("abc".split("").map(c => c.charCodeAt(0)));
+  const r = libdeno.send(m);
+  assert(r instanceof Uint8Array);
+  assert(r.byteLength === 3);
+  const rstr = String.fromCharCode(...r);
+  assert(rstr === "bar");
+};
+
+global.DoubleRecvFails = () => {
+  // libdeno.recv is an internal function and should only be called once from the
+  // runtime.
+  libdeno.recv((channel, msg) => assert(false));
+  libdeno.recv((channel, msg) => assert(false));
+};
+
+global.SendRecvSlice = () => {
+  const abLen = 1024;
+  let buf = new Uint8Array(abLen);
+  for (let i = 0; i < 5; i++) {
+    // Set first and last byte, for verification by the native side.
+    buf[0] = 100 + i;
+    buf[buf.length - 1] = 100 - i;
+    // On the native side, the slice is shortened by 19 bytes.
+    buf = libdeno.send(buf);
+    assert(buf.byteOffset === i * 11);
+    assert(buf.byteLength === abLen - i * 30 - 19);
+    assert(buf.buffer.byteLength == abLen);
+    // Look for values written by the backend.
+    assert(buf[0] === 200 + i);
+    assert(buf[buf.length - 1] === 200 - i);
+    // On the JS side, the start of the slice is moved up by 11 bytes.
+    buf = buf.subarray(11);
+    assert(buf.byteOffset === (i + 1) * 11);
+    assert(buf.byteLength === abLen - (i + 1) * 30);
+  }
+};
+
+global.JSSendArrayBufferViewTypes = () => {
+  // Test that ArrayBufferView slices are transferred correctly.
+  // Send Uint8Array.
+  const ab1 = new ArrayBuffer(4321);
+  const u8 = new Uint8Array(ab1, 2468, 1000);
+  u8[0] = 1;
+  libdeno.send(u8);
+  // Send Uint32Array.
+  const ab2 = new ArrayBuffer(4321);
+  const u32 = new Uint32Array(ab2, 2468, 1000 / Uint32Array.BYTES_PER_ELEMENT);
+  u32[0] = 0x02020202;
+  libdeno.send(u32);
+  // Send DataView.
+  const ab3 = new ArrayBuffer(4321);
+  const dv = new DataView(ab3, 2468, 1000);
+  dv.setUint8(0, 3);
+  libdeno.send(dv);
+};
+
+global.JSSendNeutersBuffer = () => {
+  // Buffer should be neutered after transferring it to the native side.
+  const u8 = new Uint8Array([42]);
+  assert(u8.byteLength === 1);
+  assert(u8.buffer.byteLength === 1);
+  assert(u8[0] === 42);
+  const r = libdeno.send(u8);
+  assert(u8.byteLength === 0);
+  assert(u8.buffer.byteLength === 0);
+  assert(u8[0] === undefined);
+};
+
+// The following join has caused SnapshotBug to segfault when using kKeep.
+[].join("");
+
+global.SnapshotBug = () => {
+  assert("1,2,3" === String([1, 2, 3]));
+};
+
+global.ErrorHandling = () => {
+  global.onerror = (message, source, line, col, error) => {
+    libdeno.print(`line ${line} col ${col}`);
+    assert("ReferenceError: notdefined is not defined" === message);
+    assert(source === "helloworld.js");
+    assert(line === 3);
+    assert(col === 1);
+    assert(error instanceof Error);
+    libdeno.send(new Uint8Array([42]));
+  };
+  eval("\n\n notdefined()\n//# sourceURL=helloworld.js");
+};
+
+global.SendNullAllocPtr = () => {
+  libdeno.recv(msg => {
+    assert(msg instanceof Uint8Array);
+    assert(msg.byteLength === 4);
+    assert(msg[0] === "a".charCodeAt(0));
+    assert(msg[1] === "b".charCodeAt(0));
+    assert(msg[2] === "c".charCodeAt(0));
+    assert(msg[3] === "d".charCodeAt(0));
+  });
+};