public void ShouldReturnStringExpressionWhenToString()
{
var filter = FilterInfo.CreateOr(
FilterInfo.CreateAnd(
new FilterInfo("Age", FilterType.GreaterThan, 1),
new FilterInfo("Name", FilterType.StartsWith, "Zhang")),
FilterInfo.CreateAnd(
new FilterInfo("Id", FilterType.In, new[] { 1, 3, 4 }),
new FilterInfo("Tel", FilterType.Contains, "135")));
Assert.AreEqual("((Age > 1) and (Name starts \"Zhang\")) or ((Id in [1,3,4]) and (Tel contains \"135\"))", filter.ToString());
Assert.AreEqual("((Age <= 1) or (Name not starts \"Zhang\")) and ((Id not in [1,3,4]) or (Tel not contains \"135\"))", filter.Not().ToString());
}
public void ShouldAppendItemsWhenOrElseAndGivenOpTypeIsOrItemsAndOtherOpTypeIsOrItems()
{
var filter = FilterInfo.CreateItem("Age", FilterType.GreaterThan, 1)
.OrElse("Name", FilterType.StartsWith, "Zhang");
Assert.AreEqual(OpType.OrItems, filter.OpType);
Assert.AreEqual(2, filter.Items.Count);
var otherAndItems = FilterInfo.CreateOr(
new FilterInfo("Id", FilterType.StartsWith, "0"),
new FilterInfo("Tel", FilterType.Contains, "135"));
filter.OrElse(otherAndItems);
Assert.AreEqual(OpType.OrItems, filter.OpType);
Assert.AreEqual(4, filter.Items.Count);
}
public void ShouldConvertToStringAndConvertFromString()
{
var filter = FilterInfo.CreateOr(
FilterInfo.CreateAnd(
new FilterInfo("Age", FilterType.GreaterThan, 1),
new FilterInfo("Name", FilterType.StartsWith, "Zhang")),
FilterInfo.CreateAnd(
new FilterInfo("Id", FilterType.StartsWith, "0"),
new FilterInfo("Tel", FilterType.Contains, "135")));
var converter = System.ComponentModel.TypeDescriptor.GetConverter(typeof(FilterInfo));
Assert.IsTrue(converter.CanConvertTo(typeof(string)));
Assert.IsTrue(converter.CanConvertFrom(typeof(string)));
var plainText = converter.ConvertTo(filter, typeof(string)) as string;
Assert.IsNotNull(plainText);
var filter2 = converter.ConvertFrom(plainText) as FilterInfo;
Assert.AreEqual(OpType.OrItems, filter2.OpType);
Assert.AreEqual(2, filter2.Items.Count);
}