diff --git a/src/stores/counter.test.ts b/src/stores/counter.test.ts
new file mode 100644
index 0000000..a4634ab
--- /dev/null
+++ b/src/stores/counter.test.ts
@@ -0,0 +1,29 @@
+import { setActivePinia, createPinia } from 'pinia'
+import { describe, it, expect } from 'vitest'
+
+import { useCounterStore } from './counter'
+
+describe('Counter Store', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+  })
+
+  describe('increment', () => {
+    it('increments', () => {
+      const counter = useCounterStore()
+      expect(counter.count).toBe(0)
+      counter.increment()
+      expect(counter.count).toBe(1)
+    })
+  })
+
+  describe('resets', () => {
+    it('increments by amount', () => {
+      const counter = useCounterStore()
+      counter.increment()
+      expect(counter.count).toBe(1)
+      counter.reset()
+      expect(counter.count).toBe(0)
+    })
+  })
+})