test: add tests for useKeysPressed

src/hooks/useKeysPressed/useKeysPressed.test.ts

@@ -0,0 +1,96 @@
+import { fireEvent, renderHook } from '@testing-library/react';
+
+import { useKeysPressed } from './useKeysPressed';
+
+describe('Should use keys pressed', () => {
+  it('Should set only unique keys', () => {
+    const props = {
+      enabled: true,
+      target: document
+    };
+    const { result } = renderHook(() => useKeysPressed(props));
+
+    fireEvent.keyDown(document, {
+      key: 'c',
+      code: 'KeyC'
+    });
+    fireEvent.keyDown(document, {
+      key: 'g',
+      code: 'KeyG'
+    });
+    fireEvent.keyDown(document, {
+      key: 'c',
+      code: 'KeyC'
+    });
+
+    expect(result.current).toEqual([
+      {
+        key: 'c',
+        code: 'KeyC'
+      },
+      {
+        key: 'g',
+        code: 'KeyG'
+      }
+    ]);
+  });
+
+  it("Shouldn't set keys", () => {
+    const props = {
+      enabled: false,
+      target: document
+    };
+    const { result } = renderHook(() => useKeysPressed(props));
+
+    fireEvent.keyDown(document, {
+      key: '2',
+      code: 'Numpad2'
+    });
+    fireEvent.keyDown(document, {
+      key: '/',
+      code: 'Slash'
+    });
+
+    expect(result.current).toHaveLength(0);
+  });
+
+  it('Should reset keys after disabling', () => {
+    const initialProps = {
+      enabled: true,
+      target: document
+    };
+    const { rerender, result } = renderHook((props) => useKeysPressed(props), {
+      initialProps
+    });
+
+    fireEvent.keyDown(document, {
+      key: 'Meta',
+      code: 'MetaLeft'
+    });
+    rerender({
+      target: document,
+      enabled: false
+    });
+
+    expect(result.current).toHaveLength(0);
+  });
+
+  it('Should clear keys after keyUp event', () => {
+    const props = {
+      enabled: true,
+      target: document
+    };
+    const { result } = renderHook(() => useKeysPressed(props));
+
+    fireEvent.keyDown(document, {
+      key: 'g',
+      code: 'KeyG'
+    });
+    fireEvent.keyUp(document, {
+      key: 'g',
+      code: 'KeyG'
+    });
+
+    expect(result.current).toHaveLength(0);
+  });
+});