func TestCalculatesDiameter(t *testing.T) { wheel := gear1.NewWheel(26, 1.5) if wheel.Diameter() < 28.99 || wheel.Diameter() > 29.01 { t.Errorf("Expected diameter %f to be 29", wheel.Diameter()) } }
func (s *MySuite) TestCalculatesDiameter(c *C) { wheel := gear1.NewWheel(26, 1.5) c.Assert(wheel.Diameter(), Within, 0.01, 29.0) }