Fix segfault in test

Fail test suite if child process receives a signal.
Fixes segfault in test.

PR-URL: #148
Reviewed-By: Michael Dawson <[email protected]>

Author: rolftimmermans

test/index.js

@@ -28,5 +28,11 @@ if (typeof global.gc === 'function') {
   const child = require('./napi_child').spawnSync(process.argv[0], [ '--expose-gc', __filename ], {
     stdio: 'inherit',
   });
-  process.exitCode = child.status;
+
+  if (child.signal) {
+    console.log(`Tests aborted with ${child.signal}`);
+    process.exitCode = 1;
+  } else {
+    process.exitCode = child.status;
+  }
 }

test/objectwrap.cc

@@ -14,6 +14,8 @@ class TestIter : public Napi::ObjectWrap<TestIter> {
     Constructor = Napi::Persistent(DefineClass(env, "TestIter", {
       InstanceMethod("next", &TestIter::Next),
     }));
+
+    Constructor.SuppressDestruct();
   }
 
   static Napi::FunctionReference Constructor;