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SimpleQueryTest.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NUnit.Framework;
namespace Simple.Data.UnitTest
{
[TestFixture]
public class SimpleQueryTest
{
[Test]
public void WhereShouldSetCriteria()
{
var query = new SimpleQuery(null, "foo");
var criteria = new SimpleExpression(1, 1, SimpleExpressionType.Equal);
query = query.Where(criteria);
Assert.AreSame(criteria, query.Clauses.OfType<WhereClause>().Single().Criteria);
}
[Test]
public void SkipShouldSetSkipCount()
{
var query = new SimpleQuery(null, "foo");
query = query.Skip(42);
Assert.IsNotNull(query.Clauses.OfType<SkipClause>().FirstOrDefault());
Assert.AreEqual(42, query.Clauses.OfType<SkipClause>().First().Count);
}
[Test]
public void TakeShouldSetTakeCount()
{
var query = new SimpleQuery(null, "foo");
query = query.Take(42);
Assert.IsNotNull(query.Clauses.OfType<TakeClause>().FirstOrDefault());
Assert.AreEqual(42, query.Clauses.OfType<TakeClause>().First().Count);
}
[Test]
public void OrderByShouldSetOrderAscending()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderBy(new ObjectReference("bar"));
Assert.AreEqual("bar", query.Clauses.OfType<OrderByClause>().Single().Reference.GetName());
Assert.AreEqual(OrderByDirection.Ascending, query.Clauses.OfType<OrderByClause>().Single().Direction);
}
[Test]
public void OrderByWithDescendingDirectionShouldSetOrderDescending()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderBy(new ObjectReference("bar"), OrderByDirection.Descending);
Assert.AreEqual("bar", query.Clauses.OfType<OrderByClause>().Single().Reference.GetName());
Assert.AreEqual(OrderByDirection.Descending, query.Clauses.OfType<OrderByClause>().Single().Direction);
}
[Test]
public void OrderByBarShouldSetOrderAscending()
{
dynamic query = new SimpleQuery(null, "foo");
SimpleQuery actual = query.OrderByBar();
Assert.AreEqual("bar", actual.Clauses.OfType<OrderByClause>().Single().Reference.GetName().ToLowerInvariant());
Assert.AreEqual(OrderByDirection.Ascending, actual.Clauses.OfType<OrderByClause>().Single().Direction);
}
[Test]
public void OrderByBarThenByQuuxShouldSetOrderAscending()
{
dynamic query = new SimpleQuery(null, "foo");
SimpleQuery actual = query.OrderByBar().ThenByQuux();
Assert.AreEqual("bar", actual.Clauses.OfType<OrderByClause>().First().Reference.GetName().ToLowerInvariant());
Assert.AreEqual("quux", actual.Clauses.OfType<OrderByClause>().Skip(1).First().Reference.GetName().ToLowerInvariant());
Assert.AreEqual(OrderByDirection.Ascending, actual.Clauses.OfType<OrderByClause>().First().Direction);
Assert.AreEqual(OrderByDirection.Ascending, actual.Clauses.OfType<OrderByClause>().Skip(1).First().Direction);
}
[Test]
public void OrderByBarThenQuxxShouldBeAbleToMixOrdering()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderBy(new ObjectReference("bar"), OrderByDirection.Ascending)
.ThenBy(new ObjectReference("quux"), OrderByDirection.Descending);
Assert.AreEqual("bar", query.Clauses.OfType<OrderByClause>().First().Reference.GetName());
Assert.AreEqual("quux", query.Clauses.OfType<OrderByClause>().Skip(1).First().Reference.GetName());
Assert.AreEqual(OrderByDirection.Ascending, query.Clauses.OfType<OrderByClause>().First().Direction);
Assert.AreEqual(OrderByDirection.Descending, query.Clauses.OfType<OrderByClause>().Skip(1).First().Direction);
}
[Test]
public void ThenByShouldModifyOrderAscending()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderBy(new ObjectReference("bar")).ThenBy(new ObjectReference("quux"));
var actual = query.Clauses.OfType<OrderByClause>().ToArray();
Assert.AreEqual(2, actual.Length);
Assert.AreEqual("bar", actual[0].Reference.GetName());
Assert.AreEqual(OrderByDirection.Ascending, actual[0].Direction);
Assert.AreEqual("quux", actual[1].Reference.GetName());
Assert.AreEqual(OrderByDirection.Ascending, actual[1].Direction);
}
[Test]
public void OrderByDescendingShouldSetOrderDescending()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderByDescending(new ObjectReference("bar"));
Assert.AreEqual("bar", query.Clauses.OfType<OrderByClause>().Single().Reference.GetName());
Assert.AreEqual(OrderByDirection.Descending, query.Clauses.OfType<OrderByClause>().Single().Direction);
}
[Test]
public void OrderByBarDescendingShouldSetOrderDescending()
{
dynamic query = new SimpleQuery(null, "foo");
SimpleQuery actual = query.OrderByBarDescending();
Assert.AreEqual("bar", actual.Clauses.OfType<OrderByClause>().Single().Reference.GetName().ToLowerInvariant());
Assert.AreEqual(OrderByDirection.Descending, actual.Clauses.OfType<OrderByClause>().Single().Direction);
}
[Test]
public void ThenByDescendingShouldModifyOrderAscending()
{
var query = new SimpleQuery(null, "foo");
query = query.OrderBy(new ObjectReference("bar")).ThenByDescending(new ObjectReference("quux"));
var actual = query.Clauses.OfType<OrderByClause>().ToArray();
Assert.AreEqual(2, actual.Length);
Assert.AreEqual("bar", actual[0].Reference.GetName());
Assert.AreEqual(OrderByDirection.Ascending, actual[0].Direction);
Assert.AreEqual("quux", actual[1].Reference.GetName());
Assert.AreEqual(OrderByDirection.Descending, actual[1].Direction);
}
[Test]
[ExpectedException(typeof(InvalidOperationException))]
public void ThenByWithoutOrderByShouldThrow()
{
new SimpleQuery(null, "foo").ThenBy(new ObjectReference("bar"));
}
[Test]
[ExpectedException(typeof(InvalidOperationException))]
public void ThenByDescendingWithoutOrderByShouldThrow()
{
new SimpleQuery(null, "foo").ThenByDescending(new ObjectReference("bar"));
}
[Test]
public void JoinShouldCreateExpression()
{
dynamic q = new SimpleQuery(null, "foo");
q = q.Join(new ObjectReference("bar"), foo_id: new ObjectReference("id", new ObjectReference("foo")));
var query = (SimpleQuery) q;
Assert.AreEqual(1, query.Clauses.OfType<JoinClause>().Count());
var join = query.Clauses.OfType<JoinClause>().Single();
Assert.AreEqual("bar", join.Table.GetName());
}
[Test]
public void JoinOnShouldSetAJoin()
{
dynamic db = new Database(null);
dynamic quux;
SimpleQuery q = db.foo.Query().Join(new ObjectReference("bar").As("quux"), out quux).On(db.foo.id == quux.foo_id);
var join = q.Clauses.OfType<JoinClause>().Single();
Assert.AreEqual("quux", join.Name);
Assert.AreEqual(quux, join.Table);
Assert.AreEqual(db.foo.id, join.JoinExpression.LeftOperand);
Assert.AreEqual(quux.foo_id, join.JoinExpression.RightOperand);
Assert.AreEqual(SimpleExpressionType.Equal, join.JoinExpression.Type);
}
[Test]
public void ForUpdateShouldAddAClause()
{
var query = new SimpleQuery(null, "foo").ForUpdate(true);
Assert.AreEqual(1, query.Clauses.OfType<ForUpdateClause>().Count());
var forUpdate = query.Clauses.OfType<ForUpdateClause>().Single();
Assert.IsTrue(forUpdate.SkipLockedRows);
}
[Test]
public void SubsequentCallsToForUpdateShouldReplaceClause()
{
var query = new SimpleQuery(null, "foo").ForUpdate(false);
Assert.AreEqual(1, query.Clauses.OfType<ForUpdateClause>().Count());
var forUpdate = query.Clauses.OfType<ForUpdateClause>().Single();
Assert.IsFalse(forUpdate.SkipLockedRows);
query = query.ForUpdate(true);
Assert.AreEqual(1, query.Clauses.OfType<ForUpdateClause>().Count());
forUpdate = query.Clauses.OfType<ForUpdateClause>().Single();
Assert.IsTrue(forUpdate.SkipLockedRows);
}
[Test]
public void ClearForUpdateRemovesClause()
{
var query = new SimpleQuery(null, "foo").ForUpdate(false);
Assert.AreEqual(1, query.Clauses.OfType<ForUpdateClause>().Count());
var forUpdate = query.Clauses.OfType<ForUpdateClause>().Single();
Assert.IsFalse(forUpdate.SkipLockedRows);
query = query.ClearForUpdate();
Assert.AreEqual(0, query.Clauses.OfType<ForUpdateClause>().Count());
}
}
}