refactor to allow switching ICategoryCollection context #40

tests/unit/stubs/EnvironmentStub.ts

@@ -0,0 +1,11 @@
+import { IEnvironment } from '@/application/Environment/IEnvironment';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+
+export class EnvironmentStub implements IEnvironment {
+    public isDesktop = true;
+    public os = OperatingSystem.Windows;
+    public withOs(os: OperatingSystem): EnvironmentStub {
+        this.os = os;
+        return this;
+    }
+}