Add libdeno test

denoland · Oct 11, 2018 · 93a9ee1 · 93a9ee1
1 parent 2b3a928
commit 93a9ee1
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diff --git a/libdeno/libdeno_test.cc b/libdeno/libdeno_test.cc
@@ -193,3 +193,16 @@ TEST(LibDenoTest, DataBuf) {
   EXPECT_EQ(data_buf_copy.data_ptr[1], 8);
   deno_delete(d);
 }
+
+TEST(LibDenoTest, PromiseRejectCatchHandling) {
+  static int count = 0;
+  Deno* d = deno_new([](auto _, int req_id, auto buf, auto data_buf) {
+    // If no error, nothing should be sent, and count should not increment
+    count++;
+  });
+  EXPECT_TRUE(
+      deno_execute(d, nullptr, "a.js", "PromiseRejectCatchHandling()"));
+
+  EXPECT_EQ(count, 0);
+  deno_delete(d);
+}
diff --git a/libdeno/libdeno_test.js b/libdeno/libdeno_test.js
@@ -133,3 +133,43 @@ global.DataBuf = () => {
   b[0] = 9;
   b[1] = 8;
 };
+
+global.PromiseRejectCatchHandling = () => {
+  let count = 0;
+  let promiseRef = null;
+  // When we have an error, libdeno sends something
+  function assertOrSend(cond) {
+    if (!cond) {
+      libdeno.send(new Uint8Array([42]));
+    }
+  }
+  libdeno.setPromiseExaminer(() => {
+    assertOrSend(count === 2);
+  });
+  libdeno.setPromiseRejectHandler((error, event, promise) => {
+    count++;
+    if (event === libdeno.constants.promiseRejectEvents.kPromiseRejectWithNoHandler) {
+      assertOrSend(error instanceof Error);
+      assertOrSend(error.message === "message");
+      assertOrSend(count === 1);
+      promiseRef = promise;
+    } else if (event === libdeno.constants.promiseRejectEvents.kPromiseHandlerAddedAfterReject) {
+      assertOrSend(count === 2);
+      assertOrSend(promiseRef === promise);
+    }
+    // Should never reach 3!
+    assertOrSend(count !== 3);
+  });
+
+  async function fn() {
+    throw new Error("message");
+  }
+
+  (async () => {
+    try {
+      await fn();
+    } catch (e) {
+      assertOrSend(count === 2);
+    }
+  })();
+}