public void trig_PI()
{
clearCalcEngine();
CalcEngine.trig_fcns("pi");
Assert.IsTrue(Math.PI - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
CalcEngine.AppendNum(234);
Assert.IsTrue(Math.PI - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
}
public void appendDigit_multiple()
{
clearCalcEngine();
for (int i = 9; i >= 0; i--)
{
CalcEngine.AppendNum(i);
}
Assert.AreEqual(9876543210, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void appendDigit_0_9()
{
clearCalcEngine();
for (int i = 9; i >= 0; i--)
{
CalcEngine.AppendNum(i);
Assert.AreEqual(i, CalcEngine.GetDisplay());
clearCalcEngine();
}
}
public void recallMemory()
{
clearCalcEngine();
CalcEngine.AppendNum(526.42);
CalcEngine.Memory("memStore");
clearCalcEngine();
CalcEngine.Memory("memRecall");
Assert.IsTrue(526.42 - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
}
public void misc_INVERSE()
{
clearCalcEngine();
CalcEngine.AppendNum(5);
CalcEngine.other_fcns("inverse");
Assert.IsTrue(1 / 5 - Math.Abs(CalcEngine.GetDisplay()) < 0.0000001);
clearCalcEngine();
CalcEngine.AppendNum(0);
Assert.IsFalse(CalcEngine.other_fcns("inverse"));
clearCalcEngine();
}
public void clearMemory()
{
clearCalcEngine();
CalcEngine.AppendNum(526.42);
CalcEngine.Memory("memStore");
clearCalcEngine();
Assert.IsTrue(526.42 - Math.Abs(Convert.ToDouble(CalcEngine.m_memory)) < 0.000000001);
CalcEngine.Memory("memClear");
Assert.IsNull(CalcEngine.m_memory);
clearCalcEngine();
}
public void appendDigit_decimal()
{
clearCalcEngine();
CalcEngine.AppendNum(8);
CalcEngine.AppendNum(4);
CalcEngine.other_fcns("decimal");
CalcEngine.AppendNum(2);
CalcEngine.AppendNum(5);
Assert.AreEqual(84.25, CalcEngine.GetDisplay());
clearCalcEngine();
}
/// <summary>
/// When a key is pressed, the number is checked and we pass that value into the calculator engine
/// </summary>
private void number_btn(object sender, EventArgs e)
{
Button num = sender as Button;
if (num != null)
{
if (!CalcEngine.m_openParen)
{
status_txt.Text = "";
}
int numValue;
switch (num.Name)
{ // Convert the System.Windows.Forms.Button pressed into a number which is stored in a string
case "one":
numValue = 1; break;
case "two":
numValue = 2; break;
case "three":
numValue = 3; break;
case "four":
numValue = 4; break;
case "five":
numValue = 5; break;
case "six":
numValue = 6; break;
case "seven":
numValue = 7; break;
case "eight":
numValue = 8; break;
case "nine":
numValue = 9; break;
default:
numValue = 0; break;
}
CalcEngine.AppendNum(numValue);
UpdateScreen();
if (CalcEngine.m_operation == null)
{
operation_txt.Text = "";
}
}
}
public void clearAll()
{
clearCalcEngine();
CalcEngine.AppendNum(34.223);
CalcEngine.PrepareOperation("+");
CalcEngine.other_fcns("switchSign");
clearCalcEngine();
CalcEngine.other_fcns("open_paren");
CalcEngine.AppendNum(34.223);
CalcEngine.PrepareOperation("add");
clearCalcEngine();
}
public void appendNum_multiple()
{
clearCalcEngine();
CalcEngine.AppendNum(829);
Assert.AreEqual(829, CalcEngine.GetDisplay());
CalcEngine.AppendNum(204);
Assert.AreEqual(829204, CalcEngine.GetDisplay());
clearCalcEngine();
CalcEngine.AppendNum(5392.634);
Assert.AreEqual(5392.634, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void misc_SQRT()
{
clearCalcEngine();
CalcEngine.AppendNum(25);
CalcEngine.other_fcns("sqrt");
Assert.IsTrue(5 == CalcEngine.GetDisplay());
CalcEngine.other_fcns("sqrt");
Assert.IsTrue(Math.Sqrt(5) - Math.Abs(CalcEngine.GetDisplay()) < 0.0000001);
clearCalcEngine();
CalcEngine.AppendNum(-3);
Assert.IsFalse(CalcEngine.other_fcns("sqrt"));
clearCalcEngine();
}
public void sumToMemory()
{
clearCalcEngine();
CalcEngine.AppendNum(526.42);
CalcEngine.Memory("memStore");
clearCalcEngine();
CalcEngine.Memory("memRecall");
Assert.IsTrue(526.42 - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
CalcEngine.AppendNum(35.56);
CalcEngine.Memory("memAdd");
Assert.IsTrue((526.42 + 35.56) - (Convert.ToDouble(CalcEngine.m_memory) + CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
}
public void misc_clearEntry()
{
clearCalcEngine();
CalcEngine.AppendNum(83);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(17);
CalcEngine.clear();
CalcEngine.AppendNum(27); //Chagne 17 to 27
CalcEngine.Solve();
Assert.AreEqual(110, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(137, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void misc_PARENTHESES()
{
clearCalcEngine();
CalcEngine.other_fcns("open_paren");
Assert.IsTrue(CalcEngine.m_openParen);
Assert.IsFalse(CalcEngine.m_closeParen);
CalcEngine.AppendNum(1);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(-2);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(88);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(54);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(36);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(21);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(2);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(-13);
CalcEngine.other_fcns("close_paren");
Assert.IsTrue(CalcEngine.m_closeParen);
Assert.IsFalse(CalcEngine.m_openParen);
Assert.AreEqual(-40, CalcEngine.GetDisplay());
//Try Again
CalcEngine.other_fcns("open_paren");
Assert.IsTrue(CalcEngine.m_openParen);
Assert.IsFalse(CalcEngine.m_closeParen);
CalcEngine.AppendNum(1);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(-2);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(88);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(54);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(36);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(21);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(2);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(-13);
CalcEngine.other_fcns("close_paren");
Assert.IsTrue(CalcEngine.m_closeParen);
Assert.IsFalse(CalcEngine.m_openParen);
Assert.AreEqual(-40, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void math_DIVIDE()
{
clearCalcEngine();
CalcEngine.AppendNum(500);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(2);
CalcEngine.Solve();
Assert.AreEqual(250, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(125, CalcEngine.GetDisplay());
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(0.5);
CalcEngine.PrepareOperation("multiply");
Assert.AreEqual(250, CalcEngine.GetDisplay());
clearCalcEngine();
//-+
CalcEngine.AppendNum(-500);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(5);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-20, CalcEngine.GetDisplay());
clearCalcEngine();
//+-
CalcEngine.AppendNum(500);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(-5);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(20, CalcEngine.GetDisplay());
clearCalcEngine();
//--
CalcEngine.AppendNum(-500);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(-5);
CalcEngine.Solve();
Assert.AreEqual(100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-20, CalcEngine.GetDisplay());
clearCalcEngine();
//Check divide by Zero
CalcEngine.AppendNum(5);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(0);
Assert.IsFalse(CalcEngine.Solve());
}
public void math_ADD()
{
clearCalcEngine();
CalcEngine.AppendNum(83);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(17);
CalcEngine.Solve();
Assert.AreEqual(100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(117, CalcEngine.GetDisplay());
//If you don't hit the add button again after hitting '=', then it assumes you're typing a new number
CalcEngine.PrepareOperation("add");
//Now you may append a numbers
CalcEngine.AppendNum(3);
CalcEngine.PrepareOperation("subtract");
//Make sure display got updated after changing operation
Assert.AreEqual(120, CalcEngine.GetDisplay());
clearCalcEngine();
//Now try every combination of negative values
//-+
CalcEngine.AppendNum(-83);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(13);
CalcEngine.Solve();
Assert.AreEqual(-70, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-57, CalcEngine.GetDisplay());
clearCalcEngine();
//+-
CalcEngine.AppendNum(83);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(-13);
CalcEngine.Solve();
Assert.AreEqual(70, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(57, CalcEngine.GetDisplay());
clearCalcEngine();
//--
CalcEngine.AppendNum(-83);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(-17);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-117, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void trig_TAN()
{
clearCalcEngine();
CalcEngine.m_useRadians = true;
Assert.IsTrue(CalcEngine.m_useRadians);
CalcEngine.AppendNum(55);
CalcEngine.trig_fcns("tan");
Assert.IsTrue(Math.Tan(55) - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
clearCalcEngine();
CalcEngine.m_useRadians = false;
Assert.IsFalse(CalcEngine.m_useRadians);
CalcEngine.AppendNum(55);
CalcEngine.trig_fcns("tan");
Assert.IsTrue(Math.Tan(55 * Math.PI / 180) - Math.Abs(CalcEngine.GetDisplay()) < 0.000000001);
clearCalcEngine();
}
public void math_SUBTRACT()
{
clearCalcEngine();
CalcEngine.AppendNum(83);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(3);
CalcEngine.Solve();
Assert.AreEqual(80, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(77, CalcEngine.GetDisplay());
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(7);
CalcEngine.PrepareOperation("add");
Assert.AreEqual(70, CalcEngine.GetDisplay());
clearCalcEngine();
//-+
CalcEngine.AppendNum(-83);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(17);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-117, CalcEngine.GetDisplay());
clearCalcEngine();
//+-
CalcEngine.AppendNum(83);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(-17);
CalcEngine.Solve();
Assert.AreEqual(100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(117, CalcEngine.GetDisplay());
clearCalcEngine();
//--
CalcEngine.AppendNum(-83);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(-13);
CalcEngine.Solve();
Assert.AreEqual(-70, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-57, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void math_MULTIPLY()
{
clearCalcEngine();
CalcEngine.AppendNum(10);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(5);
CalcEngine.Solve();
Assert.AreEqual(50, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(250, CalcEngine.GetDisplay());
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(2);
CalcEngine.PrepareOperation("divide");
Assert.AreEqual(500, CalcEngine.GetDisplay());
clearCalcEngine();
//-+
CalcEngine.AppendNum(-20);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(5);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-500, CalcEngine.GetDisplay());
clearCalcEngine();
//+-
CalcEngine.AppendNum(20);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(-5);
CalcEngine.Solve();
Assert.AreEqual(-100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(500, CalcEngine.GetDisplay());
clearCalcEngine();
//--
CalcEngine.AppendNum(-20);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(-5);
CalcEngine.Solve();
Assert.AreEqual(100, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(-500, CalcEngine.GetDisplay());
clearCalcEngine();
}
public void misc_PERCENT()
{
//(+)
clearCalcEngine();
CalcEngine.AppendNum(50);
CalcEngine.PrepareOperation("add");
CalcEngine.AppendNum(25);
CalcEngine.other_fcns("percent");
Assert.AreEqual(12.5, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(62.5, CalcEngine.GetDisplay());
//(-)
clearCalcEngine();
CalcEngine.AppendNum(50);
CalcEngine.PrepareOperation("subtract");
CalcEngine.AppendNum(25);
CalcEngine.other_fcns("percent");
Assert.AreEqual(12.5, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(37.5, CalcEngine.GetDisplay());
//(*)
clearCalcEngine();
CalcEngine.AppendNum(50);
CalcEngine.PrepareOperation("multiply");
CalcEngine.AppendNum(25);
CalcEngine.other_fcns("percent");
Assert.AreEqual(12.5, CalcEngine.GetDisplay());
CalcEngine.other_fcns("percent");
Assert.AreEqual(6.25, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(312.5, CalcEngine.GetDisplay());
//(/)
clearCalcEngine();
CalcEngine.AppendNum(50);
CalcEngine.PrepareOperation("divide");
CalcEngine.AppendNum(25);
CalcEngine.other_fcns("percent");
Assert.AreEqual(12.5, CalcEngine.GetDisplay());
CalcEngine.Solve();
Assert.AreEqual(4, CalcEngine.GetDisplay());
clearCalcEngine();
}
