Searchable dropdown (#2312)

* Searchable dropdown * format fix * Refactor SearchableDropdown with Fluent UI components, extract styles, and add tests (#2329) * Initial plan * Refactor SearchableDropdown with Fluent UI components and add tests - Replace native HTML elements with Fluent UI components (Stack, DefaultButton, Text) - Extract inline styles to SearchableDropdown.styles.ts - Add comprehensive unit tests (14 test cases) - Verify behavior consistency with AccountSwitcher tests Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> * Optimize SearchableDropdown with useMemo for filteredItems Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> * Fix text alignment to match original UI - ensure left alignment - Add flexContainer.justifyContent: "flex-start" to button styles - Add textAlign: "left" to button label, item styles, and empty message - Restore original left-aligned appearance for placeholder and selected text Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> * Fix TypeScript implicit type errors in SearchableDropdown tests (#2355) * Initial plan * Fix TypeScript compilation errors in SearchableDropdown.test.tsx Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: nishthaAhujaa <45535788+nishthaAhujaa@users.noreply.github.com> * ui fixes minor * format fix * added search icon and updated the text * removed callbacks * added mocked playwright data * fixed formatting --------- Co-authored-by: nishthaAhujaa <nishtha17354@iiittd.ac.in> Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: Sakshi Gupta <sakshig@microsoft.com> Co-authored-by: sakshigupta12feb <sakshigupta12feb1@gmail.com>
2026-05-16 02:07:43 +01:00 · 2026-03-12 20:35:59 +05:30
parent 1dce9c1f37
commit 3c97778da5
10 changed files with 842 additions and 40 deletions
@@ -0,0 +1,200 @@
+import { fireEvent, render, screen } from "@testing-library/react";
+import "@testing-library/jest-dom";
+import React from "react";
+import { SearchableDropdown } from "./SearchableDropdown";
+
+interface TestItem {
+  id: string;
+  name: string;
+}
+
+describe("SearchableDropdown", () => {
+  const mockItems: TestItem[] = [
+    { id: "1", name: "Item One" },
+    { id: "2", name: "Item Two" },
+    { id: "3", name: "Item Three" },
+  ];
+
+  const defaultProps = {
+    label: "Test Label",
+    items: mockItems,
+    selectedItem: null as TestItem | null,
+    onSelect: jest.fn(),
+    getKey: (item: TestItem) => item.id,
+    getDisplayText: (item: TestItem) => item.name,
+    placeholder: "Select an item",
+    filterPlaceholder: "Filter items",
+    className: "test-dropdown",
+  };
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("should render with label and placeholder", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+    expect(screen.getByText("Test Label")).toBeInTheDocument();
+    expect(screen.getByText("Select an item")).toBeInTheDocument();
+  });
+
+  it("should display selected item", () => {
+    const propsWithSelection = {
+      ...defaultProps,
+      selectedItem: mockItems[0],
+    };
+    render(<SearchableDropdown {...propsWithSelection} />);
+    expect(screen.getByText("Item One")).toBeInTheDocument();
+  });
+
+  it("should show 'No items found' when items array is empty", () => {
+    const propsWithEmptyItems = {
+      ...defaultProps,
+      items: [] as TestItem[],
+    };
+    render(<SearchableDropdown {...propsWithEmptyItems} />);
+    expect(screen.getByText("No Test Labels Found")).toBeInTheDocument();
+  });
+
+  it("should open dropdown when button is clicked", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+    expect(screen.getByPlaceholderText("Filter items")).toBeInTheDocument();
+  });
+
+  it("should filter items based on search text", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    const searchBox = screen.getByPlaceholderText("Filter items");
+    fireEvent.change(searchBox, { target: { value: "Two" } });
+
+    expect(screen.getByText("Item Two")).toBeInTheDocument();
+    expect(screen.queryByText("Item One")).not.toBeInTheDocument();
+    expect(screen.queryByText("Item Three")).not.toBeInTheDocument();
+  });
+
+  it("should call onSelect when an item is clicked", () => {
+    const onSelectMock = jest.fn();
+    const propsWithMock = {
+      ...defaultProps,
+      onSelect: onSelectMock,
+    };
+    render(<SearchableDropdown {...propsWithMock} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    const item = screen.getByText("Item Two");
+    fireEvent.click(item);
+
+    expect(onSelectMock).toHaveBeenCalledWith(mockItems[1]);
+  });
+
+  it("should close dropdown after selecting an item", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    expect(screen.getByPlaceholderText("Filter items")).toBeInTheDocument();
+
+    const item = screen.getByText("Item One");
+    fireEvent.click(item);
+
+    expect(screen.queryByPlaceholderText("Filter items")).not.toBeInTheDocument();
+  });
+
+  it("should disable button when disabled prop is true", () => {
+    const propsWithDisabled = {
+      ...defaultProps,
+      disabled: true,
+    };
+    render(<SearchableDropdown {...propsWithDisabled} />);
+
+    const button = screen.getByRole("button");
+    expect(button).toBeDisabled();
+  });
+
+  it("should not open dropdown when disabled", () => {
+    const propsWithDisabled = {
+      ...defaultProps,
+      disabled: true,
+    };
+    render(<SearchableDropdown {...propsWithDisabled} />);
+
+    const button = screen.getByRole("button");
+    fireEvent.click(button);
+
+    expect(screen.queryByPlaceholderText("Filter items")).not.toBeInTheDocument();
+  });
+
+  it("should show 'No items found' when search yields no results", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    const searchBox = screen.getByPlaceholderText("Filter items");
+    fireEvent.change(searchBox, { target: { value: "Nonexistent" } });
+
+    expect(screen.getByText("No items found")).toBeInTheDocument();
+  });
+
+  it("should handle case-insensitive filtering", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    const searchBox = screen.getByPlaceholderText("Filter items");
+    fireEvent.change(searchBox, { target: { value: "two" } });
+
+    expect(screen.getByText("Item Two")).toBeInTheDocument();
+    expect(screen.queryByText("Item One")).not.toBeInTheDocument();
+  });
+
+  it("should clear filter text when dropdown is closed and reopened", () => {
+    render(<SearchableDropdown {...defaultProps} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    const searchBox = screen.getByPlaceholderText("Filter items");
+    fireEvent.change(searchBox, { target: { value: "Two" } });
+
+    // Close dropdown by selecting an item
+    const item = screen.getByText("Item Two");
+    fireEvent.click(item);
+
+    // Reopen dropdown
+    fireEvent.click(button);
+
+    // Filter text should be cleared
+    const reopenedSearchBox = screen.getByPlaceholderText("Filter items");
+    expect(reopenedSearchBox).toHaveValue("");
+  });
+
+  it("should use custom placeholder text", () => {
+    const propsWithCustomPlaceholder = {
+      ...defaultProps,
+      placeholder: "Choose an option",
+    };
+    render(<SearchableDropdown {...propsWithCustomPlaceholder} />);
+    expect(screen.getByText("Choose an option")).toBeInTheDocument();
+  });
+
+  it("should use custom filter placeholder text", () => {
+    const propsWithCustomFilterPlaceholder = {
+      ...defaultProps,
+      filterPlaceholder: "Search here",
+    };
+    render(<SearchableDropdown {...propsWithCustomFilterPlaceholder} />);
+
+    const button = screen.getByText("Select an item");
+    fireEvent.click(button);
+
+    expect(screen.getByPlaceholderText("Search here")).toBeInTheDocument();
+  });
+});