reload_state: Add 100% test coverage.

This commit adds a new reload_state.js file to node_tests/ which
completes the missing coverage from reload_state.

frontend_tests/node_tests/reload_state.js

@@ -0,0 +1,20 @@
+"use strict";
+
+const {strict: assert} = require("assert");
+
+const {zrequire} = require("../zjsunit/namespace");
+const {run_test} = require("../zjsunit/test");
+
+const reload_state = zrequire("reload_state");
+
+run_test("set_state_to_pending", () => {
+    assert(!reload_state.is_pending());
+    reload_state.set_state_to_pending();
+    assert(reload_state.is_pending());
+});
+
+run_test("set_state_to_in_progress", () => {
+    assert(!reload_state.is_in_progress());
+    reload_state.set_state_to_in_progress();
+    assert(reload_state.is_in_progress());
+});