diff --git a/src/patterns/state.ts b/src/patterns/state.ts
index 66319d5..6e2639b 100644
--- a/src/patterns/state.ts
+++ b/src/patterns/state.ts
@@ -32,9 +32,10 @@ class Context {
     }
 }
 
-export const state = () => {
+export const state = (): true => {
     const context: Context = new Context()
     context.request()
     context.setState(new ConcreteStateB())
     context.request()
+    return true
 }
diff --git a/tests/state.test.ts b/tests/state.test.ts
new file mode 100644
index 0000000..bfb7ad4
--- /dev/null
+++ b/tests/state.test.ts
@@ -0,0 +1,8 @@
+import {state} from "../src/patterns"
+
+describe('KAN_T1_State Test', () => {
+    it('should return true working with the instance', () => {
+        const result = state()
+        expect(result).toBe(true)
+    })
+})