fix: skip redefining global __static in tests

Signed-off-by: Roman <ixrock@gmail.com>

src/common/utils/defineGlobal.ts

@@ -0,0 +1,12 @@
+// Setup variable in global scope (top-level object)
+// Global type definition must be added separately to `mocks.d.ts` in form:
+// declare const __globalName: any;
+
+export function defineGlobal(propName: string, descriptor: PropertyDescriptor) {
+  const scope = typeof global !== "undefined" ? global : window;
+  if (scope.hasOwnProperty(propName)) {
+    console.info(`Global variable "${propName}" already exists. Skipping.`)
+    return;
+  }
+  Object.defineProperty(scope, propName, descriptor);
+}

src/common/vars.ts

@@ -1,6 +1,7 @@
 // App's common configuration for any process (main, renderer, build pipeline, etc.)
-import packageInfo from "../../package.json"
 import path from "path";
+import packageInfo from "../../package.json"
+import { defineGlobal } from "./utils/defineGlobal";
 
 export const isMac = process.platform === "darwin"
 export const isWindows = process.platform === "win32"
@@ -21,8 +22,7 @@ export const htmlTemplate = path.resolve(rendererDir, "template.html");
 export const sassCommonVars = path.resolve(rendererDir, "components/vars.scss");
 
 // Special runtime paths
-const globScope = typeof global !== "undefined" ? global : window;
+defineGlobal("__static", {
-Object.defineProperty(globScope, "__static", {
   get() {
     if (isDevelopment) {
       return path.resolve(contextDir, "static");