public void negate_operator_should_work()
{
var startWithJ = LinqSpec.For <string>(n => n.StartsWith("J"));
var result = new SampleRepository()
.Retrieve(!startWithJ);
result.Satisfy(r => !r.Contains("Jose") &&
!r.Contains("Julian") &&
r.Contains("Manuel"));
}
public void simple_adhoc_should_work()
{
var specification = LinqSpec.For <string>(n => n.StartsWith("J"));
var result = new SampleRepository()
.Retrieve(specification);
result.Satisfy(r => r.Contains("Jose") &&
r.Contains("Julian") &&
!r.Contains("Manuel"));
}
public void CombineIntSpec()
{
var intGreaterThan4Spec = LinqSpec.For <int>(i => i > 4);
var stringLongerThan4CharsSpec = LinqSpec.OnProperty <string, int>(s => s.Length, intGreaterThan4Spec);
var result = new SampleRepository()
.Retrieve(stringLongerThan4CharsSpec);
result.Satisfy(r => !r.Contains("Jose") &&
r.Contains("Julian") &&
r.Contains("Manuel"));
}
public void or_should_work()
{
var startWithJ = LinqSpec.For <string>(n => n.StartsWith("J"));
var endsWithN = LinqSpec.For <string>(n => n.EndsWith("n"));
var result = new SampleRepository()
.Retrieve(startWithJ | endsWithN);
result.Satisfy(r => Enumerable.Contains(r, "Jose") &&
Enumerable.Contains(r, "Julian") &&
!Enumerable.Contains(r, "Manuel"));
}
public void and_should_work()
{
var startWithJ = LinqSpec.For <string>(n => n.StartsWith("J"));
var endsWithE = LinqSpec.For <string>(n => n.EndsWith("e"));
var specfication = startWithJ && endsWithE;
IEnumerable <string> result = new SampleRepository()
.Retrieve(specfication);
result.Satisfy(r => r.Contains("Jose") &&
!r.Contains("Julian") &&
!r.Contains("Manuel"));
}
public void query_sample()
{
var startWithM = new StartsWithQuery("M");
var endsWithN = LinqSpec.For <string>(n => n.EndsWith("n"));
IEnumerable <string> result = new SampleRepository()
.Retrieve(startWithM | !endsWithN);
result.Satisfy(r =>
Enumerable.Contains(r, "Jose") &&
!Enumerable.Contains(r, "Julian") &&
Enumerable.Contains(r, "Manuel"));
}
public void and_operator_should_work()
{
var startWithJ = LinqSpec.For <string>(n => n.StartsWith("J"));
var endsWithE = LinqSpec.For <string>(n => n.EndsWith("e"));
// & or && both operators behave as &&.
IEnumerable <string> result = new SampleRepository()
.Retrieve(startWithJ & endsWithE);
result.Satisfy(r => r.Contains("Jose") &&
!r.Contains("Julian") &&
!r.Contains("Manuel"));
}
public void can_cast_expression_as_queryspec()
{
Expression <Func <string, bool> > startExpr = n => n.StartsWith("M");
Expression <Func <string, bool> > endExpr = n => n.EndsWith("n");
LinqSpec <string> startWithM = startExpr;
LinqSpec <string> endsWithN = endExpr;
IEnumerable <string> result = new SampleRepository()
.Retrieve(startWithM | !endsWithN);
result.Satisfy(r =>
Enumerable.Contains(r, "Jose") &&
!Enumerable.Contains(r, "Julian") &&
Enumerable.Contains(r, "Manuel"));
}