diff --git a/pyRCV2/numbers/native_py.py b/pyRCV2/numbers/native_py.py
index 155b050..c6908ee 100644
--- a/pyRCV2/numbers/native_py.py
+++ b/pyRCV2/numbers/native_py.py
@@ -30,11 +30,11 @@ class Native(BasePyNum):
 		factor = 10 ** dps
 		if mode == Native.ROUND_DOWN:
 			return Native._from_impl(math.floor(self.impl * factor) / factor)
-		elif mode == Native.ROUND_HALF_UP:
+		elif mode == Native.ROUND_HALF_UP: # pragma: no cover
 			raise NotImplementedError('ROUND_HALF_UP is not implemented in Python Native context')
 		elif mode == Native.ROUND_HALF_EVEN:
 			return Native._from_impl(round(self.impl * factor) / factor)
 		elif mode == Native.ROUND_UP:
 			return Native._from_impl(math.ceil(self.impl * factor) / factor)
-		else:
+		else: # pragma: no cover
 			raise ValueError('Invalid rounding mode')
diff --git a/pyRCV2/numbers/rational_py.py b/pyRCV2/numbers/rational_py.py
index cfc5b6c..9b4de4c 100644
--- a/pyRCV2/numbers/rational_py.py
+++ b/pyRCV2/numbers/rational_py.py
@@ -36,11 +36,11 @@ class Rational(BasePyNum):
 		factor = Fraction(10) ** dps
 		if mode == Rational.ROUND_DOWN:
 			return Rational._from_impl(math.floor(self.impl * factor) / factor)
-		elif mode == Rational.ROUND_HALF_UP:
+		elif mode == Rational.ROUND_HALF_UP: # pragma: no cover
 			raise NotImplementedError('ROUND_HALF_UP is not implemented in Python Rational context')
 		elif mode == Rational.ROUND_HALF_EVEN:
 			return Rational._from_impl(round(self.impl * factor) / factor)
 		elif mode == Rational.ROUND_UP:
 			return Rational._from_impl(math.ceil(self.impl * factor) / factor)
-		else:
+		else: # pragma: no cover
 			raise ValueError('Invalid rounding mode')
diff --git a/tests/test_numbers.py b/tests/test_numbers.py
index b76b6c4..f2cc405 100644
--- a/tests/test_numbers.py
+++ b/tests/test_numbers.py
@@ -67,7 +67,15 @@ def maketst_round(numbers, dps, num, dps_round, mode_round, result):
 
 test_fixed_round1_py, test_fixed_round1_js = maketst_round('Fixed', 5, '3141.59', 1, 'ROUND_DOWN', '3141.5')
 test_fixed_round2_py, test_fixed_round2_js = maketst_round('Fixed', 5, '3141.59', 1, 'ROUND_UP', '3141.6')
+test_fixed_round3_py, test_fixed_round3_js = maketst_round('Fixed', 5, '3141.45', 1, 'ROUND_HALF_EVEN', '3141.4')
+test_fixed_round4_py, test_fixed_round4_js = maketst_round('Fixed', 5, '3141.45', 1, 'ROUND_HALF_UP', '3141.5')
+
 test_native_round1_py, test_native_round1_js = maketst_round('Native', 0, '3141.59', 1, 'ROUND_DOWN', '3141.5')
 test_native_round2_py, test_native_round2_js = maketst_round('Native', 0, '3141.59', 1, 'ROUND_UP', '3141.6')
+test_native_round3_py, _ = maketst_round('Native', 0, '3141.45', 1, 'ROUND_HALF_EVEN', '3141.4')
+_, test_native_round4_js = maketst_round('Native', 0, '3141.45', 1, 'ROUND_HALF_UP', '3141.5')
+
 test_rational_round1_py, test_rational_round1_js = maketst_round('Rational', 0, '3141.59', 1, 'ROUND_DOWN', '3141.5')
 test_rational_round2_py, test_rational_round2_js = maketst_round('Rational', 0, '3141.59', 1, 'ROUND_UP', '3141.6')
+test_rational_round3_py, _ = maketst_round('Rational', 0, '3141.45', 1, 'ROUND_HALF_EVEN', '3141.4')
+_, test_rational_round4_js = maketst_round('Rational', 0, '3141.45', 1, 'ROUND_HALF_UP', '3141.5')