public void Iterators_TableSpool_ReturnsInput_AndPushes()
{
var rows = new object[, ]
{
{ 1, "One" },
{ 2, "Two" }
};
var expected = rows;
var tableSpoolStack = new TableSpoolStack(1);
using (var input = new MockedIterator(rows))
using (var iterator = new TableSpoolIterator(input, tableSpoolStack))
{
AssertProduces(iterator, expected);
var stackRows = new List <RowBuffer>();
while (!tableSpoolStack.IsEmpty)
{
stackRows.Add(tableSpoolStack.Pop());
}
for (var i = 0; i < rows.GetLength(0); i++)
{
var originalLine = rows.GetLength(0) - i - 1;
for (var j = 0; j < rows.GetLength(1); j++)
{
Assert.Equal(rows[originalLine, j], stackRows[i][j]);
}
}
}
}
public void Iterators_TableSpoolRef_ReturnsEmpty_IfStackIsEmpty()
{
var stack = new TableSpoolStack(1);
using (var iterator = new TableSpoolRefIterator(stack))
{
AssertEmpty(iterator);
}
}
public void Iterators_TableSpool_ReturnsEmpty_IfInputEmpty()
{
var rows = new object[0];
var tableSpoolStack = new TableSpoolStack(1);
using (var input = new MockedIterator(rows))
using (var iterator = new TableSpoolIterator(input, tableSpoolStack))
{
AssertEmpty(iterator);
Assert.True(tableSpoolStack.IsEmpty);
}
}
public void Iterators_TableSpoolRef_ReturnsStack_AndPops()
{
var stack = new TableSpoolStack(2);
stack.Push(new MockedRowBuffer(new object[] { 1, "One" }));
stack.Push(new MockedRowBuffer(new object[] { 2, "Two" }));
var expected = new object[, ]
{
{ 2, "Two" },
{ 1, "One" }
};
using (var iterator = new TableSpoolRefIterator(stack))
{
AssertProduces(iterator, expected);
Assert.True(stack.IsEmpty);
}
}
public void Iterators_TableSpool_ForwardsProperly()
{
var rows = new object[] { 1, 2 };
var expected = rows;
using (var input = new MockedIterator(rows))
{
var tableSpoolStack = new TableSpoolStack(1);
using (var iterator = new TableSpoolIterator(input, tableSpoolStack))
{
for (var i = 0; i < 2; i++)
{
AssertProduces(iterator, expected);
}
}
Assert.Equal(2, input.TotalOpenCount);
Assert.Equal(4, input.TotalReadCount);
Assert.Equal(1, input.DisposalCount);
}
}
