public void ShouldApplyLimitUsingTop()
{
var sql = "select a,b,c from d where a = 1 order by c";
var expected = new[] { "select top(5) a,b,c from d where a = 1 order by c" };
var pagedSql = new SqlCe40QueryPager().ApplyLimit(sql, 5);
var modified = pagedSql.Select(x => Normalize.Replace(x, " ").ToLowerInvariant());
Assert.IsTrue(expected.SequenceEqual(modified));
}
public void ShouldApplyPagingUsingOrderByFirstColumnIfNotAlreadyOrdered()
{
var sql = "select a,b,c from d where a = 1";
var expected = new[]{
"select a,b,c from d where a = 1 order by a offset 10 rows fetch next 20 rows only"};
var pagedSql = new SqlCe40QueryPager().ApplyPaging(sql, new string[0], 10, 20);
var modified = pagedSql.Select(x => Normalize.Replace(x, " ").ToLowerInvariant());
Assert.IsTrue(expected.SequenceEqual(modified));
}
public void ShouldApplyPagingUsingOrderBy()
{
var sql = "select a,b,c from d where a = 1 order by c";
var expected = new[]{
"select a,b,c from d where a = 1 order by c offset 5 rows fetch next 10 rows only"};
var pagedSql = new SqlCe40QueryPager().ApplyPaging(sql, 5, 10);
var modified = pagedSql.Select(x=> Normalize.Replace(x, " ").ToLowerInvariant());
Assert.IsTrue(expected.SequenceEqual(modified));
}
public void ShouldApplyPagingUsingOrderByFirstColumnIfNotAlreadyOrdered()
{
const string sql = "select a,b,c from d where a = 1";
const string expected =
"select a,b,c from d where a = 1 order by a offset @skip rows fetch next @take rows only";
var modified = new SqlCe40QueryPager().ApplyPaging(sql, "@skip", "@take");
modified = Normalize.Replace(modified, " ").ToLowerInvariant();
Assert.AreEqual(expected, modified);
}