Add tests for useBoolean and useStateWithReset

src/useBoolean.test.ts

@@ -0,0 +1,125 @@
+import { renderHook, act } from "@testing-library/react-hooks";
+
+import useBoolean from "./useBoolean";
+
+test("useBoolean should return correct initial values", () => {
+  const { result } = renderHook(() => useBoolean(true));
+
+  expect(result.current.value).toBe(true);
+  expect(typeof result.current.setValue).toBe("function");
+  expect(typeof result.current.toggle).toBe("function");
+  expect(typeof result.current.setTrue).toBe("function");
+  expect(typeof result.current.setFalse).toBe("function");
+});
+
+test("useBoolean should have proper setValue", () => {
+  const { result } = renderHook(() => useBoolean(true));
+
+  // Ensure it can set to false
+  {
+    act(() => {
+      result.current.setValue(false);
+    });
+
+    expect(result.current.value).toBe(false);
+  }
+
+  // Ensure it can set to true
+  {
+    act(() => {
+      result.current.setValue(true);
+    });
+
+    expect(result.current.value).toBe(true);
+  }
+
+  // Ensure it is not just toggling values
+  {
+    act(() => {
+      result.current.setValue(true);
+    });
+
+    expect(result.current.value).toBe(true);
+  }
+});
+
+test("useBoolean should have proper toggle", () => {
+  const { result } = renderHook(() => useBoolean(false));
+
+  // Ensure it does toggle
+  {
+    act(() => {
+      result.current.toggle();
+    });
+
+    expect(result.current.value).toBe(true);
+
+    act(() => {
+      result.current.toggle();
+    });
+
+    expect(result.current.value).toBe(false);
+  }
+});
+
+test("useBoolean should have proper setTrue", () => {
+  const { result } = renderHook(() => useBoolean(false));
+
+  // Ensure setTrue basic works
+  {
+    act(() => {
+      result.current.setTrue();
+    });
+
+    expect(result.current.value).toBe(true);
+  }
+
+  // Ensure setTrue is not toggling
+  {
+    act(() => {
+      result.current.setTrue();
+    });
+
+    expect(result.current.value).toBe(true);
+  }
+
+  // Ensure setTrue ignores input values
+  {
+    act(() => {
+      (result.current.setTrue as any)(false);
+    });
+
+    expect(result.current.value).toBe(true);
+  }
+});
+
+test("useBoolean should have proper setFalse", () => {
+  const { result } = renderHook(() => useBoolean(false));
+
+  // Ensure setFalse basic works
+  {
+    act(() => {
+      result.current.setFalse();
+    });
+
+    expect(result.current.value).toBe(false);
+  }
+
+  // Ensure setFalse is not toggling
+  {
+    act(() => {
+      result.current.setFalse();
+    });
+
+    expect(result.current.value).toBe(false);
+  }
+
+  // Ensure setFalse ignores input values
+  {
+    act(() => {
+      (result.current.setFalse as any)(false);
+    });
+
+    expect(result.current.value).toBe(false);
+  }
+});