Update tests

src/test/lib/useTheme.spec.tsx

@@ -0,0 +1,76 @@
+import { getTheme, IThemeProps, setScheme, setTheme } from "../../lib/useTheme";
+
+const props: IThemeProps = {
+  label: "Classic",
+  value: 0,
+  mainColor: "#000000",
+  accentColor: "#1e272e",
+  backgroundColor: "#ffffff",
+};
+
+const location: Location = window.location;
+const setup = () => {
+  Object.defineProperty(window, "localStorage", {
+    value: {
+      getItem: jest.fn(() => JSON.stringify(props)),
+      setItem: jest.fn(() => null),
+    },
+    writable: true,
+  });
+
+  // @ts-ignore
+  delete window.location;
+
+  window.location = {
+    ...location,
+    reload: jest.fn(),
+  };
+};
+
+describe("theme.tsx", () => {
+  it("Tests setScheme", () => {
+    setup();
+
+    let value = "dark";
+
+    setScheme(value);
+    expect(window.localStorage.setItem).toHaveBeenCalledTimes(1);
+    expect(window.localStorage.setItem).toHaveBeenCalledWith("theme", value);
+  });
+
+  it("setTheme light test", () => {
+    setup();
+
+    setTheme("light", props);
+    expect(window.localStorage.setItem).toHaveBeenCalledTimes(2);
+    expect(window.localStorage.setItem).toHaveBeenCalledWith(
+      "light-theme",
+      JSON.stringify(props),
+    );
+    expect(window.location.reload).toHaveBeenCalledTimes(1);
+  });
+
+  it("setTheme dark test", () => {
+    setup();
+
+    setTheme("dark", props);
+    expect(window.localStorage.setItem).toHaveBeenCalledTimes(2);
+    expect(window.localStorage.setItem).toHaveBeenCalledWith(
+      "dark-theme",
+      JSON.stringify(props),
+    );
+    expect(window.location.reload).toHaveBeenCalledTimes(1);
+  });
+
+  it("Tests getTheme", () => {
+    setup();
+
+    let themeTest = getTheme();
+    expect(themeTest).toEqual(props);
+  });
+
+  it("Tests getTheme with empty parameters", () => {
+    localStorage.setItem("theme", "");
+    expect(getTheme()).toEqual({});
+  });
+});