feat: 项目结构重构优化

tests/unit/composables/useTableSelection.test.ts

@@ -0,0 +1,88 @@
+import { describe, it, expect, beforeEach } from "vitest";
+import { useTableSelection } from "@/composables/table/useTableSelection";
+
+describe("useTableSelection", () => {
+  let selection: ReturnType<typeof useTableSelection>;
+
+  beforeEach(() => {
+    selection = useTableSelection();
+  });
+
+  it("应该初始化为空数组", () => {
+    expect(selection.selectedIds.value).toEqual([]);
+    expect(selection.selectedRows.value).toEqual([]);
+  });
+
+  describe("handleSelectionChange()", () => {
+    it("应该更新选中的行", () => {
+      const rows = [
+        { id: 1, name: "张三" },
+        { id: 2, name: "李四" },
+      ];
+
+      selection.handleSelectionChange(rows);
+
+      expect(selection.selectedRows.value).toEqual(rows);
+      expect(selection.selectedIds.value).toEqual([1, 2]);
+    });
+
+    it("应该处理空数组", () => {
+      selection.handleSelectionChange([]);
+
+      expect(selection.selectedRows.value).toEqual([]);
+      expect(selection.selectedIds.value).toEqual([]);
+    });
+
+    it("应该支持自定义 ID 字段", () => {
+      const customSelection = useTableSelection("userId");
+      const rows = [
+        { userId: "u1", name: "张三" },
+        { userId: "u2", name: "李四" },
+      ];
+
+      customSelection.handleSelectionChange(rows);
+
+      expect(customSelection.selectedIds.value).toEqual(["u1", "u2"]);
+    });
+  });
+
+  describe("clearSelection()", () => {
+    it("应该清空选中项", () => {
+      const rows = [{ id: 1, name: "张三" }];
+      selection.handleSelectionChange(rows);
+
+      selection.clearSelection();
+
+      expect(selection.selectedIds.value).toEqual([]);
+      expect(selection.selectedRows.value).toEqual([]);
+    });
+  });
+
+  describe("hasSelection", () => {
+    it("有选中项时应该返回 true", () => {
+      const rows = [{ id: 1, name: "张三" }];
+      selection.handleSelectionChange(rows);
+
+      expect(selection.hasSelection.value).toBe(true);
+    });
+
+    it("无选中项时应该返回 false", () => {
+      expect(selection.hasSelection.value).toBe(false);
+    });
+  });
+
+  describe("selectionCount", () => {
+    it("应该返回选中项数量", () => {
+      expect(selection.selectionCount.value).toBe(0);
+
+      const rows = [
+        { id: 1, name: "张三" },
+        { id: 2, name: "李四" },
+        { id: 3, name: "王五" },
+      ];
+      selection.handleSelectionChange(rows);
+
+      expect(selection.selectionCount.value).toBe(3);
+    });
+  });
+});