diff --git a/tests/test_catmath.py b/tests/test_catmath.py
index ced6358..72e0dc8 100644
--- a/tests/test_catmath.py
+++ b/tests/test_catmath.py
@@ -3,14 +3,23 @@
 
 def test__cat_years_to_hooman_years__middle_age__succeeds():
     assert True
+    cat_year = 6
+    hooman_years = catmath.cat_years_to_hooman_years(cat_year)
+    assert hooman_years == 30
 
 
 def test__cat_years_to_hooman_years__less_than_one_year__succeeds():
     assert True
+    cat_year = 0.3
+    hooman_years = catmath.cat_years_to_hooman_years(cat_year)
+    assert hooman_years == 1.5
 
 
 def test__cat_years_to_hooman_years__0__returns_0():
     assert True
+    cat_year = 0
+    hooman_years = catmath.cat_years_to_hooman_years(cat_year)
+    assert hooman_years == 0
 
 
 # BONUS MATERIAL FOR STEP 2