Successfully added unit test cases for usePathsInternal (tjtanjin#244)

__tests__/hooks/internal/usePathsInternal.test.ts

@@ -0,0 +1,97 @@
+import { renderHook, act } from "@testing-library/react";
+import { usePathsInternal } from "../../../src/hooks/internal/usePathsInternal";
+import { useSettingsContext } from "../../../src/context/SettingsContext";
+import { usePathsContext } from "../../../src/context/PathsContext";
+import { useBotStatesContext } from "../../../src/context/BotStatesContext";
+import { useBotRefsContext } from "../../../src/context/BotRefsContext";
+import { emitRcbEvent } from "../../../src/services/RcbEventService";
+import { RcbEvent } from "../../../src/constants/RcbEvent";
+
+// Mock the necessary contexts and services
+jest.mock("../../../src/context/SettingsContext");
+jest.mock("../../../src/context/PathsContext");
+jest.mock("../../../src/context/BotStatesContext");
+jest.mock("../../../src/context/BotRefsContext");
+jest.mock("../../../src/services/RcbEventService");
+
+describe("usePathsInternal Hook", () => {
+  const mockSetPaths = jest.fn();
+  const mockSetIsBotTyping = jest.fn();
+  const mockSetTextAreaDisabled = jest.fn();
+  const mockSetTextAreaSensitiveMode = jest.fn();
+  const mockSetBlockAllowsAttachment = jest.fn();
+  const mockBotIdRef = { current: "bot-1" };
+  const mockPaths = ["path1", "path2"];
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    (useSettingsContext as jest.Mock).mockReturnValue({
+      settings: {
+        event: { rcbChangePath: true },
+        chatInput: { blockSpam: true },
+      },
+    });
+    (usePathsContext as jest.Mock).mockReturnValue({
+      paths: mockPaths,
+      setPaths: mockSetPaths,
+    });
+    (useBotStatesContext as jest.Mock).mockReturnValue({
+      setIsBotTyping: mockSetIsBotTyping,
+      setTextAreaDisabled: mockSetTextAreaDisabled,
+      setTextAreaSensitiveMode: mockSetTextAreaSensitiveMode,
+      blockAllowsAttachment: false,
+      setBlockAllowsAttachment: mockSetBlockAllowsAttachment,
+    });
+    (useBotRefsContext as jest.Mock).mockReturnValue({
+      botIdRef: mockBotIdRef,
+    });
+
+    // Mock emitRcbEvent to return an object with defaultPrevented
+    (emitRcbEvent as jest.Mock).mockReturnValue({
+      defaultPrevented: false,
+    });
+  });
+
+ it("should go to a new path and emit the rcbChangePath event", async () => {
+  const { result } = renderHook(() => usePathsInternal());
+
+  await act(async () => {
+    const success = result.current.goToPath("newPath");
+    expect(success).toBe(true);
+  });
+
+  // Check that mockSetPaths was called with a function
+  expect(mockSetPaths).toHaveBeenCalledWith(expect.any(Function));
+
+  // Simulate calling the function with previous state
+  const setPathsCallback = mockSetPaths.mock.calls[0][0]; // Get the first call's first argument
+  const newState = setPathsCallback(mockPaths); // Simulate previous state being passed to the function
+
+  // Check that the function returns the correct new state
+  expect(newState).toEqual([...mockPaths, "newPath"]);
+
+  expect(mockSetIsBotTyping).toHaveBeenCalledWith(true);
+  expect(mockSetTextAreaDisabled).toHaveBeenCalledWith(true);
+  expect(mockSetTextAreaSensitiveMode).toHaveBeenCalledWith(false);
+  expect(emitRcbEvent).toHaveBeenCalledWith(
+    RcbEvent.CHANGE_PATH,
+    { botId: mockBotIdRef.current, currPath: "path2", prevPath: "path1" },
+    { currPath: "path2", prevPath: "path1", nextPath: "newPath" }
+  );
+});
+
+
+  it("should prevent going to a new path if the event is defaultPrevented", async () => {
+    // Mocking the event being prevented
+    (emitRcbEvent as jest.Mock).mockReturnValue({ defaultPrevented: true });
+
+    const { result } = renderHook(() => usePathsInternal());
+
+    await act(async () => {
+      const success = result.current.goToPath("blockedPath");
+      expect(success).toBe(false);
+    });
+
+    expect(mockSetPaths).not.toHaveBeenCalled();
+  });
+});