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-rw-r--r--devtools/server/tests/xpcshell/test_promise_state-03.js58
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diff --git a/devtools/server/tests/xpcshell/test_promise_state-03.js b/devtools/server/tests/xpcshell/test_promise_state-03.js
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+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+/* eslint-disable max-nested-callbacks */
+
+"use strict";
+
+/**
+ * Test that the preview in a Promise's grip is correct when the Promise is
+ * rejected.
+ */
+
+add_task(
+ threadFrontTest(async ({ threadFront, debuggee }) => {
+ const packet = await executeOnNextTickAndWaitForPause(
+ () => evalCode(debuggee),
+ threadFront
+ );
+
+ const environment = await packet.frame.getEnvironment();
+ const grip = environment.bindings.variables.p.value;
+ ok(grip.preview);
+ equal(grip.class, "Promise");
+ equal(grip.preview.ownProperties["<state>"].value, "rejected");
+ equal(
+ grip.preview.ownProperties["<reason>"].value.actorID,
+ packet.frame.arguments[0].actorID,
+ "The promise's rejected state reason in the preview should be the same " +
+ "value passed to the then function"
+ );
+
+ const objClient = threadFront.pauseGrip(grip);
+ const { promiseState } = await objClient.getPromiseState();
+ equal(promiseState.state, "rejected");
+ equal(
+ promiseState.reason.getGrip().actorID,
+ packet.frame.arguments[0].actorID,
+ "The promise's rejected state value in getPromiseState() should be " +
+ "the same value passed to the then function"
+ );
+ })
+);
+
+function evalCode(debuggee) {
+ /* eslint-disable mozilla/var-only-at-top-level, no-unused-vars */
+ // prettier-ignore
+ Cu.evalInSandbox(
+ "doTest();\n" +
+ function doTest() {
+ var resolved = Promise.reject(new Error("uh oh"));
+ resolved.catch(() => {
+ var p = resolved;
+ debugger;
+ });
+ },
+ debuggee
+ );
+ /* eslint-enable mozilla/var-only-at-top-level, no-unused-vars */
+}