diff --git a/test/test_inputHandling.c b/test/test_inputHandling.c
index 3ba48da..0b666e9 100644
--- a/test/test_inputHandling.c
+++ b/test/test_inputHandling.c
@@ -99,6 +99,7 @@ void test_inputHandling_getNumbersAddFormular(void)
     char* pnt = NULL;
     char add[] = "4+5";
     formula.functionsType = detectFunctionOperator(add,3);
+    TEST_ASSERT_TRUE(formula.functionsType == opAdd);
     pnt = getNumbers(add, 3, &formula);
     showStruct(&formula);
     TEST_ASSERT_NULL(pnt);
@@ -110,9 +111,24 @@ void test_inputHandling_getNumbersAddFormular(void)
 void test_inputHandling_getNumbersSubFormular(void)
 {
     char* pnt = NULL;
-    char add[] = "4-5";
-    formula.functionsType = detectFunctionOperator(add,3);
-    pnt = getNumbers(add, 3, &formula);
+    char sub[] = "4-5";
+    formula.functionsType = detectFunctionOperator(sub,3);
+    TEST_ASSERT_TRUE(formula.functionsType == opSub);
+    pnt = getNumbers(sub, 3, &formula);
+    showStruct(&formula);
+    TEST_ASSERT_NULL(pnt);
+    TEST_ASSERT_EQUAL_DOUBLE(4.0, formula.inputNumbers[0]);
+    TEST_ASSERT_EQUAL_DOUBLE(5.0, formula.inputNumbers[1]);
+    TEST_ASSERT_EQUAL_INT(2, formula.arrayLength);
+}
+
+void test_inputHandling_getNumbersMultiFormular(void)
+{
+    char* pnt = NULL;
+    char multi[] = "4*5";
+    formula.functionsType = detectFunctionOperator(multi,3);
+    TEST_ASSERT_TRUE(formula.functionsType == opMult);
+    pnt = getNumbers(multi, 3, &formula);
     showStruct(&formula);
     TEST_ASSERT_NULL(pnt);
     TEST_ASSERT_EQUAL_DOUBLE(4.0, formula.inputNumbers[0]);