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import { describe, it, expect, vi, beforeEach } from "vitest";
import { render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { server } from "../../mocks/server";
import { errorHandlers } from "../../mocks/handlers";
import { CaseSelector } from "../CaseSelector";
describe("CaseSelector", () => {
const mockOnSelectCase = vi.fn();
beforeEach(() => {
mockOnSelectCase.mockClear();
});
it("shows loading state initially", () => {
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
expect(screen.getByText(/loading/i)).toBeInTheDocument();
});
it("renders select after loading", async () => {
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toBeInTheDocument();
});
});
it("displays all cases as options", async () => {
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toBeInTheDocument();
});
expect(
screen.getByRole("option", { name: /sub-stroke0001/i }),
).toBeInTheDocument();
expect(
screen.getByRole("option", { name: /sub-stroke0002/i }),
).toBeInTheDocument();
expect(
screen.getByRole("option", { name: /sub-stroke0003/i }),
).toBeInTheDocument();
});
it("has placeholder option", async () => {
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toBeInTheDocument();
});
expect(
screen.getByRole("option", { name: /choose a case/i }),
).toBeInTheDocument();
});
it("calls onSelectCase when case selected", async () => {
const user = userEvent.setup();
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toBeInTheDocument();
});
await user.selectOptions(screen.getByRole("combobox"), "sub-stroke0001");
expect(mockOnSelectCase).toHaveBeenCalledWith("sub-stroke0001");
});
it("shows selected case value", async () => {
render(
<CaseSelector
selectedCase="sub-stroke0002"
onSelectCase={mockOnSelectCase}
/>,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toHaveValue("sub-stroke0002");
});
});
it("shows error state on API failure", async () => {
server.use(errorHandlers.casesServerError);
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByText(/failed to load/i)).toBeInTheDocument();
});
});
it("applies correct styling", async () => {
render(
<CaseSelector selectedCase={null} onSelectCase={mockOnSelectCase} />,
);
await waitFor(() => {
expect(screen.getByRole("combobox")).toBeInTheDocument();
});
const container = screen.getByRole("combobox").closest("div");
expect(container).toHaveClass("bg-gray-800");
});
});
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