public void CannotPeekEmpty_Peek_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
// Assert
Assert.Throws <NutmegException>(() => stack.Peek());
}
public void StartsEmpty_IsEmpty_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
// Act
var isEmpty = stack.IsEmpty();
// Assert
Assert.True(isEmpty);
}
public void CannotPopEmptyLocked_Pop_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
stack.Push("p");
stack.Push("q");
stack.Lock(); // Assert
Assert.Throws <NutmegException>(() => stack.Pop());
}
//public void Lock( int n ) {
// this.EnsureRoom( n );
// this.dump.Push( this.layer );
// this.layer = this.top;
// Array.Fill( this.items, default( T ), this.top, n );
// this.top += n;
//}
public int RawLock(int nlocals, CheckedLayeredStack <T> src)
{
this.EnsureRoom(nlocals);
this.Lock();
var nargs = src.RawSend(this);
Array.Fill(this.items, default(T), this.top + nargs, nlocals - nargs);
this.top += nlocals;
return(nargs);
}
public void CanPeekOrElseEmpty_PeekOrElse_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
var arbitrary = "foobar";
// Act
var x = stack.PeekOrElse(orElse: arbitrary);
var y = stack.PeekItemOrElse(0, orElse: arbitrary);
// Assert
Assert.Equal(arbitrary, x);
Assert.Equal(arbitrary, y);
}
public void CanUnlock_Unlock_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
stack.Push("p");
stack.Push("q");
stack.Lock();
// Act
stack.Unlock();
// Assert
Assert.Equal(0, stack.LockCount());
Assert.Equal(2, stack.Size());
}
public void Simple_PeekAndPeekItem_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
// Act
stack.Push("a");
stack.Push("b");
var b = stack.Peek();
var a = stack.PeekItem(1);
// Assert
Assert.Equal("b", b);
Assert.Equal("a", a);
}
public void StartsEmptyLocked_IsEmpty_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
stack.Push("p");
stack.Push("q");
stack.Lock();
// Act
var isEmpty = stack.IsEmpty();
var k = stack.LockCount();
// Assert
Assert.True(isEmpty);
Assert.Equal(1, k);
}
public void SimplePop_Pop_Test()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
stack.Push("a");
stack.Push("b");
// Act
var b = stack.Pop();
var a = stack.Pop();
// Assert
Assert.True(stack.IsEmpty());
Assert.Equal(0, stack.Size());
Assert.Equal("b", b);
Assert.Equal("a", a);
}
public void UncheckedLayeredStack()
{
// Arrange
var stack = new CheckedLayeredStack <string>();
// Act
stack.Lock();
// Assert
Assert.True(stack.IsEmpty());
Assert.Equal(1, stack.LockCount());
// Act
stack.Unlock();
// Assert
Assert.True(stack.IsEmpty());
Assert.Equal(0, stack.LockCount());
// Assert
Assert.Throws <NutmegException>(() => stack.Unlock());
}
public void Simple_RawLock_Test()
{
// Arrange
var vstack = new CheckedLayeredStack <string>();
vstack.Lock();
vstack.Push("a");
vstack.Push("b");
var cstack = new UncheckedLayeredStack <string>();
// Act
cstack.RawLock(4, vstack);
// Assert
Assert.Equal(1, vstack.LockCount());
Assert.Equal(0, vstack.Size());
Assert.Equal(1, cstack.LockCount());
Assert.Equal(4, cstack.Size());
Assert.Equal("a", cstack[0]);
Assert.Equal("b", cstack[1]);
Assert.Null(cstack[2]);
Assert.Null(cstack[3]);
}
