1 files changed, 77 insertions, 0 deletions
diff --git a/deps/v8/test/wasm-api-tests/finalize.cc b/deps/v8/test/wasm-api-tests/finalize.cc
new file mode 100644
index 0000000000..7b3b976ca7
--- /dev/null
+++ b/deps/v8/test/wasm-api-tests/finalize.cc
@@ -0,0 +1,77 @@
+// Copyright 2019 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "test/wasm-api-tests/wasm-api-test.h"
+
+namespace v8 {
+namespace internal {
+namespace wasm {
+
+namespace {
+
+int g_instances_finalized = 0;
+int g_functions_finalized = 0;
+int g_foreigns_finalized = 0;
+int g_modules_finalized = 0;
+
+void FinalizeInstance(void* data) {
+  int iteration = static_cast<int>(reinterpret_cast<intptr_t>(data));
+  g_instances_finalized += iteration;
+}
+
+void FinalizeFunction(void* data) {
+  int iteration = static_cast<int>(reinterpret_cast<intptr_t>(data));
+  g_functions_finalized += iteration;
+}
+
+void FinalizeForeign(void* data) {
+  int iteration = static_cast<int>(reinterpret_cast<intptr_t>(data));
+  g_foreigns_finalized += iteration;
+}
+
+void FinalizeModule(void* data) {
+  g_modules_finalized += static_cast<int>(reinterpret_cast<intptr_t>(data));
+}
+
+}  // namespace
+
+TEST_F(WasmCapiTest, InstanceFinalization) {
+  // Add a dummy function: f(x) { return x; }
+  byte code[] = {WASM_RETURN1(WASM_GET_LOCAL(0))};
+  AddExportedFunction(CStrVector("f"), code, sizeof(code), wasm_i_i_sig());
+  Compile();
+  g_instances_finalized = 0;
+  g_functions_finalized = 0;
+  g_foreigns_finalized = 0;
+  g_modules_finalized = 0;
+  module()->set_host_info(reinterpret_cast<void*>(42), &FinalizeModule);
+  static const int kIterations = 10;
+  for (int iteration = 0; iteration < kIterations; iteration++) {
+    void* finalizer_data = reinterpret_cast<void*>(iteration);
+    own<Instance*> instance = Instance::make(store(), module(), nullptr);
+    EXPECT_NE(nullptr, instance.get());
+    instance->set_host_info(finalizer_data, &FinalizeInstance);
+
+    own<Func*> func = instance->exports()[0]->func()->copy();
+    ASSERT_NE(func, nullptr);
+    func->set_host_info(finalizer_data, &FinalizeFunction);
+
+    own<Foreign*> foreign = Foreign::make(store());
+    foreign->set_host_info(finalizer_data, &FinalizeForeign);
+  }
+  Shutdown();
+  // Verify that (1) all finalizers were called, and (2) they passed the
+  // correct host data: the loop above sets {i} as data, and the finalizer
+  // callbacks add them all up, so the expected value is
+  // sum([0, 1, ..., kIterations - 1]), which per Gauss's formula is:
+  static const int kExpected = (kIterations * (kIterations - 1)) / 2;
+  EXPECT_EQ(g_instances_finalized, kExpected);
+  EXPECT_EQ(g_functions_finalized, kExpected);
+  EXPECT_EQ(g_foreigns_finalized, kExpected);
+  EXPECT_EQ(g_modules_finalized, 42);
+}
+
+}  // namespace wasm
+}  // namespace internal
+}  // namespace v8