diff --git a/src/index.test.ts b/src/index.test.ts
index 71e1fa4..1ae86fc 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -3,9 +3,15 @@ import Index from "./index";
 test('test uncovered if', () => {
     const indexObj = new Index();
     expect(indexObj.uncovered_if()).toEqual(false);
+    expect(indexObj.uncovered_if(false)).toEqual(true);
 });
 
 test('fully covered', () => {
     const indexObj = new Index();
     expect(indexObj.fully_covered()).toEqual(true);
+});
+
+test('uncovered', () => {
+    const indexObj = new Index();
+    expect(indexObj.uncovered()).toEqual(true);
 });
\ No newline at end of file