feat(store): initial release (#279)

packages/store/test/slice.test.ts

@@ -0,0 +1,74 @@
+import { describe, expect, it, vi } from 'vitest';
+import { createSlice } from '../src/slice';
+
+describe('slice', () => {
+  describe('createSlice', () => {
+    it('creates slice with all required properties', () => {
+      interface Target {
+        value: number;
+      }
+
+      const slice = createSlice<Target>()({
+        initialState: { count: 0 },
+        getSnapshot: ({ target }) => ({ count: target.value }),
+        subscribe: vi.fn(),
+        request: {
+          increment: (amount: number, { target }) => {
+            target.value += amount;
+          },
+        },
+      });
+
+      expect(slice.id).toBeTypeOf('symbol');
+      expect(slice.initialState).toEqual({ count: 0 });
+      expect(slice.getSnapshot).toBeTypeOf('function');
+      expect(slice.subscribe).toBeTypeOf('function');
+      expect(slice.request.increment).toMatchObject({
+        key: 'increment',
+        guard: [],
+        handler: expect.any(Function),
+      });
+    });
+
+    it('resolves shorthand handlers', () => {
+      const slice = createSlice({
+        initialState: {},
+        getSnapshot: () => ({}),
+        subscribe: () => {},
+        request: {
+          simple: () => 'result',
+        },
+      });
+
+      expect(slice.request.simple.key).toBe('simple');
+      expect(slice.request.simple.guard).toEqual([]);
+      expect(slice.request.simple.cancel).toBeUndefined();
+    });
+
+    it('preserves full config options', () => {
+      const guard = () => true;
+
+      const schedule = (flush: () => void) => {
+        setTimeout(flush, 100);
+      };
+
+      const slice = createSlice({
+        initialState: {},
+        getSnapshot: () => ({}),
+        subscribe: () => {},
+        request: {
+          configured: {
+            key: 'custom-key',
+            guard: [guard],
+            schedule,
+            handler: () => {},
+          },
+        },
+      });
+
+      expect(slice.request.configured.key).toBe('custom-key');
+      expect(slice.request.configured.guard).toEqual([guard]);
+      expect(slice.request.configured.schedule).toBe(schedule);
+    });
+  });
+});