public void MemSubTest()
{
OwnMath.memDel();
//check memSub(int a)
OwnMath.memSub(10);
Assert.AreEqual(-10, OwnMath.memLoad());
OwnMath.memAdd(-5);
Assert.AreEqual(-15, OwnMath.memLoad());
//check memSub(double a)
OwnMath.memDel();
OwnMath.memSub(10.5);
Assert.AreEqual(-10.5, OwnMath.memLoad());
OwnMath.memSub(5.5);
Assert.AreEqual(-16, OwnMath.memLoad());
OwnMath.memDel();
}
private void ButtonMemoryminus_Click(object sender, EventArgs e)
{
OwnMath.memSub(ParseNumber(UserInput.Text));
}