[wasm] Block compile/instantiate of large array buffers

third_party/WebKit/LayoutTests/fast/wasm/wasm-limits-tests.js

Index: third_party/WebKit/LayoutTests/fast/wasm/wasm-limits-tests.js
diff --git a/third_party/WebKit/LayoutTests/fast/wasm/wasm-limits-tests.js b/third_party/WebKit/LayoutTests/fast/wasm/wasm-limits-tests.js
new file mode 100644
index 0000000000000000000000000000000000000000..4603ade16114834981e5fb1683b98cf3b20153eb
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/fast/wasm/wasm-limits-tests.js
@@ -0,0 +1,67 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var limit = Math.pow(2, 12);
+
+function TestBuffersAreCorrect() {
+  var buffs = createTestBuffers(limit);
+  assert_equals(buffs.small.byteLength, limit);
+  assert_equals(buffs.large.byteLength, limit + 1);
+}
+
+function compileFailsWithError(buffer, error_type) {
+  try {
+    new WebAssembly.Module(buffer);
+  } catch (e) {
+    assert_true(e instanceof error_type);
+  }
+}
+
+function TestSyncCompile() {
+  var buffs = createTestBuffers(limit);
+  assert_true(new WebAssembly.Module(buffs.small)
+              instanceof WebAssembly.Module);
+  compileFailsWithError(buffs.large, RangeError);
+}
+
+function TestPromiseCompile() {
+  return WebAssembly.compile(createTestBuffers(limit).large)
+    .then(m => assert_true(m instanceof WebAssembly.Module));
+}
+
+function TestWorkerCompileAndInstantiate() {
+  var worker = new Worker("wasm-limits-worker.js");
+  return new Promise((resolve, reject) => {
+    worker.postMessage(createTestBuffers(limit).large);
+    worker.onmessage = function(event) {
+      resolve(event.data);
+    }
+  })
+    .then(ans => assert_true(ans),
+          assert_unreached);
+}
+
+function TestPromiseCompileSyncInstantiate() {
+  return WebAssembly.compile(createTestBuffers(limit).large)
+    .then (m => new WebAssembly.Instance(m))
+    .then(assert_unreached,
+          e => assert_true(e instanceof RangeError));
+}
+
+function TestPromiseCompileAsyncInstantiateFromBuffer() {
+  return WebAssembly.instantiate(createTestBuffers(limit).large)
+    .then(i => assert_true(i.instance instanceof WebAssembly.Instance),
+          assert_unreached);
+}
+
+function TestPromiseCompileAsyncInstantiateFromModule() {
+  return WebAssembly.compile(createTestBuffers(limit).large)
+    .then(m => {
+      assert_true(m instanceof WebAssembly.Module);
+      return WebAssembly.instantiate(m).
+        then(i => assert_true(i instanceof WebAssembly.Instance),
+             assert_unreached);
+    },
+    assert_unreached);
+}