1 files changed, 81 insertions, 0 deletions
diff --git a/devtools/client/shared/test/xpcshell/test_VariablesView_getString_promise.js b/devtools/client/shared/test/xpcshell/test_VariablesView_getString_promise.js
new file mode 100644
index 0000000000..feaec04fd0
--- /dev/null
+++ b/devtools/client/shared/test/xpcshell/test_VariablesView_getString_promise.js
@@ -0,0 +1,81 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const { VariablesView } = ChromeUtils.importESModule(
+  "resource://devtools/client/storage/VariablesView.sys.mjs"
+);
+
+const PENDING = {
+  type: "object",
+  class: "Promise",
+  actor: "conn0.obj35",
+  extensible: true,
+  frozen: false,
+  sealed: false,
+  promiseState: {
+    state: "pending",
+  },
+  preview: {
+    kind: "Object",
+    ownProperties: {},
+    ownPropertiesLength: 0,
+    safeGetterValues: {},
+  },
+};
+
+const FULFILLED = {
+  type: "object",
+  class: "Promise",
+  actor: "conn0.obj35",
+  extensible: true,
+  frozen: false,
+  sealed: false,
+  promiseState: {
+    state: "fulfilled",
+    value: 10,
+  },
+  preview: {
+    kind: "Object",
+    ownProperties: {},
+    ownPropertiesLength: 0,
+    safeGetterValues: {},
+  },
+};
+
+const REJECTED = {
+  type: "object",
+  class: "Promise",
+  actor: "conn0.obj35",
+  extensible: true,
+  frozen: false,
+  sealed: false,
+  promiseState: {
+    state: "rejected",
+    reason: 10,
+  },
+  preview: {
+    kind: "Object",
+    ownProperties: {},
+    ownPropertiesLength: 0,
+    safeGetterValues: {},
+  },
+};
+
+function run_test() {
+  equal(VariablesView.getString(PENDING, { concise: true }), "Promise");
+  equal(VariablesView.getString(PENDING), 'Promise {<state>: "pending"}');
+
+  equal(VariablesView.getString(FULFILLED, { concise: true }), "Promise");
+  equal(
+    VariablesView.getString(FULFILLED),
+    'Promise {<state>: "fulfilled", <value>: 10}'
+  );
+
+  equal(VariablesView.getString(REJECTED, { concise: true }), "Promise");
+  equal(
+    VariablesView.getString(REJECTED),
+    'Promise {<state>: "rejected", <reason>: 10}'
+  );
+}