Added tests for LearningWorldCompletionModalBuilder

src/Components/CoreTest/Presentation/React/LearningSpaceMenu/LearningWorldCompletionModal/LearningWorldCompletionModalBuilder.test.ts

@@ -0,0 +1,42 @@
+import { mock } from "jest-mock-extended";
+import CoreDIContainer from "../../../../../Core/DependencyInjection/CoreDIContainer";
+import PRESENTATION_TYPES from "../../../../../Core/DependencyInjection/Presentation/PRESENTATION_TYPES";
+import ILearningWorldCompletionModalPresenter from "../../../../../Core/Presentation/React/LearningSpaceMenu/LearningWorldCompletionModal/ILearningWorldCompletionModalPresenter";
+import LearningWorldCompletionModalBuilder from "../../../../../Core/Presentation/React/LearningSpaceMenu/LearningWorldCompletionModal/LearningWorldCompletionModalBuilder";
+
+describe("LearningWorldCompletionModalBuilder", () => {
+  let systemUnderTest: LearningWorldCompletionModalBuilder;
+
+  beforeEach(() => {
+    systemUnderTest = new LearningWorldCompletionModalBuilder();
+  });
+
+  test("buildPresenter registers presenter with the CoreDIContainer", () => {
+    systemUnderTest.buildViewModel();
+    systemUnderTest.buildPresenter();
+
+    expect(
+      CoreDIContainer.isBound(
+        PRESENTATION_TYPES.ILearningWorldCompletionModalPresenter,
+      ),
+    ).toBe(true);
+    expect(
+      CoreDIContainer.get(
+        PRESENTATION_TYPES.ILearningWorldCompletionModalPresenter,
+      ),
+    ).toBe(systemUnderTest.getPresenter()!);
+  });
+
+  test("buildPresenter unbinds the presenter if it is already bound", () => {
+    CoreDIContainer.bind(
+      PRESENTATION_TYPES.ILearningWorldCompletionModalPresenter,
+    ).toConstantValue(mock<ILearningWorldCompletionModalPresenter>);
+
+    const unbindSpy = jest.spyOn(CoreDIContainer, "unbind");
+
+    systemUnderTest.buildViewModel();
+    systemUnderTest.buildPresenter();
+
+    expect(unbindSpy).toHaveBeenCalledTimes(1);
+  });
+});