polylines tooltip content

__tests__/unit/hooks/useLineData.test.js

@@ -0,0 +1,42 @@
+import { renderHook, act, waitFor } from "@testing-library/react";
+import useLineData from "../../../hooks/useLineData";
+import React from "react";
+
+const mockUrl = "http://mockurl.com";
+const mockData1 = {
+  Statis: [{ IdLD: 1, Modul: "mod1", PrioColor: "red", ModulName: "Module 1", ModulTyp: "Type 1", Message: "Message 1", PrioName: "High", DpName: "DP 1", Value: "Value 1" }],
+};
+const mockData2 = [{ idLD: 1, idModul: "mod1" }];
+
+global.fetch = jest.fn((url) => {
+  if (url === mockUrl) {
+    return Promise.resolve({
+      json: () => Promise.resolve(mockData1),
+    });
+  } else {
+    return Promise.resolve({
+      json: () => Promise.resolve(mockData2),
+    });
+  }
+});
+
+describe("useLineData", () => {
+  test("should fetch line data and set line colors and tooltip contents", async () => {
+    const setLineStatusData = jest.fn();
+
+    const { result } = renderHook(() => useLineData(mockUrl, setLineStatusData));
+
+    await waitFor(
+      () => {
+        expect(setLineStatusData).toHaveBeenCalledWith(expect.any(Array));
+        expect(result.current).toEqual(
+          expect.objectContaining({
+            lineColors: expect.any(Object),
+            tooltipContents: expect.any(Object),
+          })
+        );
+      },
+      { timeout: 5000 } // Increase the timeout to 5000ms
+    );
+  });
+});