diff --git a/test/conversionOfNumbers/test_conversionOfNumbers.c b/test/conversionOfNumbers/test_conversionOfNumbers.c
index 5659461..c3f6ffe 100644
--- a/test/conversionOfNumbers/test_conversionOfNumbers.c
+++ b/test/conversionOfNumbers/test_conversionOfNumbers.c
@@ -100,6 +100,18 @@ void test_convertBinaryStr1111ToInt15(){
     //act
     result = convertBinaryStrToInt("1111");
 
+    //assert
+    TEST_ASSERT_EQUAL_UINT(expected, result);
+}
+
+void test_convertBinaryStr1001ToInt9(){
+    //arrange
+    unsigned int result;
+    unsigned int expected = 9;
+
+    //act
+    result = convertBinaryStrToInt("1001");
+
     //assert
     TEST_ASSERT_EQUAL_UINT(expected, result);
 }
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