test/polynomial_test.rb in polynomials-0.1.2 vs test/polynomial_test.rb in polynomials-0.1.4

@@ -54,9 +54,12 @@
     polynomial = Polynomial.parse('1 x^4')
     assert_equal({ left: Set[-1.0/0..+1.0/0] }, polynomial.curvature_behaviour)
 
     polynomial = Polynomial.parse('-1 x^4')
     assert_equal({ right: Set[-1.0/0..+1.0/0] }, polynomial.curvature_behaviour)
+
+    polynomial = Polynomial.parse('5x^2')
+    assert_equal({ left: Set[-1.0/0..+1.0/0] }, polynomial.curvature_behaviour)
   end
 
   def test_no_curve_and_no_inflection_points
     polynomials = []
     polynomials << Polynomial.parse('5 x + 4')