[New] Added test cases for tooltip

app/javascript/components/tooltip/component.spec.js

@@ -0,0 +1,28 @@
+import { mountedComponent, screen } from "../../test-utils";
+
+import Tooltip from "./component";
+
+describe("components/tooltip", () => {
+  it("renders tooltip", () => {
+    const TooltipComponent = () => (
+      <Tooltip title="wrapper content" data-testid="wrapper-content">
+        <div>wrapped children</div>
+      </Tooltip>
+    );
+
+    mountedComponent(<TooltipComponent />);
+    expect(screen.getByText(/wrapped children/i)).toBeInTheDocument();
+  });
+
+  it("does not render tooltip without title", () => {
+    const TooltipComponent = () => (
+      <Tooltip title="">
+        <div>wrapped children</div>
+      </Tooltip>
+    );
+
+    mountedComponent(<TooltipComponent />);
+    expect(screen.getByText(/wrapped children/i)).toBeInTheDocument();
+    expect(screen.queryAllByRole("tooltip")).toHaveLength(0);
+  });
+});