private static void AssertCanParse(Expression <Func <ExportDefinition, bool> > constraint, string contractName, IEnumerable <KeyValuePair <string, Type> > requiredMetadata)
{
Assert.IsNotNull(constraint);
string contractNameResult = null;
IEnumerable <KeyValuePair <string, Type> > requiredMetadataResult = null;
bool success = ContraintParser.TryParseConstraint(constraint, out contractNameResult, out requiredMetadataResult);
Assert.IsTrue(success);
Assert.AreEqual(contractName, contractNameResult);
EnumerableAssert.AreEqual(requiredMetadata, requiredMetadataResult);
}
private static void AssertCanNotParse(Expression <Func <ExportDefinition, bool> > constraint)
{
Assert.IsNotNull(constraint);
string contractNameResult;
IEnumerable <KeyValuePair <string, Type> > requiredMetadataResult;
var success = ContraintParser.TryParseConstraint(constraint, out contractNameResult, out requiredMetadataResult);
Assert.IsFalse(success);
Assert.IsNull(contractNameResult);
Assert.IsNull(requiredMetadataResult);
}