diff --git a/tests/test_catmath.py b/tests/test_catmath.py
index ced6358..eb59735 100644
--- a/tests/test_catmath.py
+++ b/tests/test_catmath.py
@@ -2,15 +2,15 @@
 
 
 def test__cat_years_to_hooman_years__middle_age__succeeds():
-    assert True
+    assert catmath.cat_years_to_hooman_years(10) == 50
 
 
 def test__cat_years_to_hooman_years__less_than_one_year__succeeds():
-    assert True
+    assert catmath.cat_years_to_hooman_years(0.2) == 1
 
 
 def test__cat_years_to_hooman_years__0__returns_0():
-    assert True
+    assert catmath.cat_years_to_hooman_years(0) == 0
 
 
 # BONUS MATERIAL FOR STEP 2