Update

src/test/c/test_calculator.c

@@ -199,3 +199,15 @@ void test_performOperation_division_by_zero(void) {
     TEST_ASSERT_EQUAL_INT(0, performOperation(10, '/', 0));
 
 }
+void test_DecToBin(void) {
+    // Arrange
+    long long int result;
+
+    // Act
+    result = DecToBin(8);
+
+    // Assert
+    TEST_ASSERT_EQUAL_INT64(100, result);
+}
+
+