diff --git a/src/test/c/test_taschenrechner.c b/src/test/c/test_calculator.c
similarity index 94%
rename from src/test/c/test_taschenrechner.c
rename to src/test/c/test_calculator.c
index cf6c739..5206a76 100644
--- a/src/test/c/test_taschenrechner.c
+++ b/src/test/c/test_calculator.c
@@ -1,113 +1,113 @@
-#ifdef TEST
-
-#include "unity.h"
-
-#include "taschenrechner.h"
-
-void setUp(void)
-{
-}
-
-void tearDown(void)
-{
-}
-
-void test_addition(void)
-{
-    doulbe result = add(1, 2);
-    TEST_ASSERT_EQUAL(3, result);
-}
-
-void test_minus(void)
-{
-    doulbe result = minus(3, 1);
-    TEST_ASSERT_EQUAL(2, result);
-}
-
-void test_multiply(void)
-{
-    doulbe result = multiply(1, 2);
-    TEST_ASSERT_EQUAL(2, result);
-}
-
-void test_divide(void)
-{
-    doulbe result = divide(4, 2);
-    TEST_ASSERT_EQUAL(2, result);
-
-    doulbe result1 = divide(4, 0);
-    TEST_ASSERT_EQUAL(0, result1);
-}
-
-void test_ConMeter(void) {//5 mm to cm
-    double result = ConMeter(5, 0, 1);
-    TEST_ASSERT_EQUAL(50, result);
-}
-
-void test_ConMeterToFoot(void) {//5 m to foot
-    double result = ConMeterToFoot(5, 0, 1);
-    TEST_ASSERT_EQUAL(16.4042, result);
-}
-void test_ConKilometerToMiles(void) {//5 miles to km
-    double result = ConKilometerToMiles(5, 0, 1);
-    TEST_ASSERT_EQUAL(3.10686, result);
-}
-
-void test_ConGram(void) {//5 mg to g
-    double result = ConGram(5, 0, 1);
-    TEST_ASSERT_EQUAL(5000, result);
-}
-
-void test_ConGramToPounds(void) {//5 kg to pounds
-    double result = ConGramToPounds(5, 0, 1);
-    TEST_ASSERT_EQUAL(11.0231, result);
-}
-
-void test_ConTemp(void) {//5 celsius to fahrenheit
-    double result = ConTemp(5, 0, 1);
-    TEST_ASSERT_EQUAL(41, result);
-}
-
-void test_ConSpeed(void) {//5 kmh to mph
-    double result = ConTemp(5, 0, 1);
-    TEST_ASSERT_EQUAL(3.10686, result);
-}
-
-void test_ConLiter(void) {//5 l to ml
-    double result = ConTemp(5, 1, 0);
-    TEST_ASSERT_EQUAL(5000, result);
-}
-
-void test_ConLiterToGallon(void) {//5 l to gallon
-    double result = ConTemp(5, 0, 1);
-    TEST_ASSERT_EQUAL(1.32086, result);
-}
-
-void test_ConData(void) {//5 b to kb
-    double result = ConData(5, 0, 1);
-    TEST_ASSERT_EQUAL(0.005, result);
-}
-
-void test_ConArea(void) {//5 mm to cm
-    double result = ConData(5, 0, 1);
-    TEST_ASSERT_EQUAL(0.05), result);
-}
-
-void test_ConVolume(void) {//5 mm to cm
-    double result = ConData(5, 0, 1);
-    TEST_ASSERT_EQUAL(0.005), result);
-}
-
-void test_ConClock(void) {//5:00 to 5AM
-    double result = ConData(5, 0, 1);
-    TEST_ASSERT_EQUAL(5), result);
-}
-
-void test_ConTime(void) {//5 ms to s
-    double result = ConData(5, 0, 1);
-    TEST_ASSERT_EQUAL(0.005), result);
-}
-
-
-
-#endif // TEST
+#ifdef TEST
+
+#include "unity.h"
+
+#include "calculator.h"
+
+void setUp(void)
+{
+}
+
+void tearDown(void)
+{
+}
+
+void test_addition(void)
+{
+    doulbe result = add(1, 2);
+    TEST_ASSERT_EQUAL(3, result);
+}
+
+void test_minus(void)
+{
+    doulbe result = minus(3, 1);
+    TEST_ASSERT_EQUAL(2, result);
+}
+
+void test_multiply(void)
+{
+    doulbe result = multiply(1, 2);
+    TEST_ASSERT_EQUAL(2, result);
+}
+
+void test_divide(void)
+{
+    doulbe result = divide(4, 2);
+    TEST_ASSERT_EQUAL(2, result);
+
+    doulbe result1 = divide(4, 0);
+    TEST_ASSERT_EQUAL(0, result1);
+}
+
+void test_ConMeter(void) {//5 mm to cm
+    double result = ConMeter(5, 0, 1);
+    TEST_ASSERT_EQUAL(50, result);
+}
+
+void test_ConMeterToFoot(void) {//5 m to foot
+    double result = ConMeterToFoot(5, 0, 1);
+    TEST_ASSERT_EQUAL(16.4042, result);
+}
+void test_ConKilometerToMiles(void) {//5 miles to km
+    double result = ConKilometerToMiles(5, 0, 1);
+    TEST_ASSERT_EQUAL(3.10686, result);
+}
+
+void test_ConGram(void) {//5 mg to g
+    double result = ConGram(5, 0, 1);
+    TEST_ASSERT_EQUAL(5000, result);
+}
+
+void test_ConGramToPounds(void) {//5 kg to pounds
+    double result = ConGramToPounds(5, 0, 1);
+    TEST_ASSERT_EQUAL(11.0231, result);
+}
+
+void test_ConTemp(void) {//5 celsius to fahrenheit
+    double result = ConTemp(5, 0, 1);
+    TEST_ASSERT_EQUAL(41, result);
+}
+
+void test_ConSpeed(void) {//5 kmh to mph
+    double result = ConTemp(5, 0, 1);
+    TEST_ASSERT_EQUAL(3.10686, result);
+}
+
+void test_ConLiter(void) {//5 l to ml
+    double result = ConTemp(5, 1, 0);
+    TEST_ASSERT_EQUAL(5000, result);
+}
+
+void test_ConLiterToGallon(void) {//5 l to gallon
+    double result = ConTemp(5, 0, 1);
+    TEST_ASSERT_EQUAL(1.32086, result);
+}
+
+void test_ConData(void) {//5 b to kb
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005, result);
+}
+
+void test_ConArea(void) {//5 mm to cm
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.05), result);
+}
+
+void test_ConVolume(void) {//5 mm to cm
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005), result);
+}
+
+void test_ConClock(void) {//5:00 to 5AM
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(5), result);
+}
+
+void test_ConTime(void) {//5 ms to s
+    double result = ConData(5, 0, 1);
+    TEST_ASSERT_EQUAL(0.005), result);
+}
+
+
+
+#endif // TEST