diff --git a/test/test_logarithmus.c b/test/test_logarithmus.c
index e39c8c9..d606c97 100644
--- a/test/test_logarithmus.c
+++ b/test/test_logarithmus.c
@@ -79,5 +79,23 @@ void test_logarithmic_function_with_decimals(void){
     TEST_ASSERT_DOUBLE_WITHIN(0.000001, 2.070919, r4);
 }
 
+void test_logarithmic_function_to_base_10(void){
+    double r1, r2, r3, r4, r5, r6;
+
+    r1 = logDec(100.0);
+    r2 = logDec(100.6479);
+    r3 = logDec(10.587);
+    r4 = logDec(4.341);
+    r5 = logDec(0.34979);
+    r6 = logDec(1.0);
+
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 2.0, r1);
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 2.002804, r2);
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 1.024772, r3);
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.637589, r4);
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, -0.456192, r5);
+    TEST_ASSERT_DOUBLE_WITHIN(0.000001, 0.0, r6);
+}
+
 
 #endif // TEST
\ No newline at end of file