public void Compare_ReturnsZero_IfFirstAndSecondItemMaterialIdIsNull()
{
var comparer = new StockItemComparer();
var stockItem1 = new StockItem();
var stockItem2 = new StockItem();
var result = comparer.Compare(stockItem1, stockItem2);
Assert.Equal(0, result);;
}
public void Compare_ReturnsGreaterThanZero_IfSecondItemIsNull()
{
var comparer = new StockItemComparer();
var stockItem1 = new StockItem {
MaterialId = "A"
};
var result = comparer.Compare(stockItem1, null);
Assert.True(result > 0);;
}
public void Compare_ReturnsLessThanZero_IfFirstItemIsNull()
{
var comparer = new StockItemComparer();
var stockItem2 = new StockItem {
MaterialId = "A"
};
var result = comparer.Compare(null, stockItem2);
Assert.True(result < 0);;
}
public void Compare_ReturnsLessThanZero_IfFirstItemMaterialIdIsLessThenSecondItemMaterialId()
{
var comparer = new StockItemComparer();
var stockItem1 = new StockItem {
MaterialId = "A"
};
var stockItem2 = new StockItem {
MaterialId = "B"
};
var result = comparer.Compare(stockItem1, stockItem2);
Assert.True(result < 0);
}
public void Compare_ReturnsZero_IfFirstItemMaterialIdIsEqualToSecondItemMaterialId()
{
var comparer = new StockItemComparer();
var stockItem1 = new StockItem {
MaterialId = "A"
};
var stockItem2 = new StockItem {
MaterialId = "A"
};
var result = comparer.Compare(stockItem1, stockItem2);
Assert.Equal(0, result);
}
