public static NullityClause Matcher(this NullityClause self)
{
return(Match.Create <NullityClause>(nc =>
ReferenceEquals(nc.LHS.Field, self.LHS.Field) &&
!nc.LHS.Function.HasValue &&
nc.Operator == self.Operator
));
}
public void NullityClauseNotNegated()
{
// Arrange
var mockField = new Mock <IField>();
var op = NullityOperator.IsNotNull;
// Act
var clause = new NullityClause(mockField.Object, op);
var fields = clause.GetDependentFields();
// Assert
clause.LHS.Field.Should().Be(mockField.Object);
clause.LHS.Function.Should().NotHaveValue();
clause.Operator.Should().Be(op);
fields.Should().BeEquivalentTo(new IField[] { mockField.Object });
}
public void NullityClauseNegated_IsNotNull()
{
// Arrange
var mockField = new Mock <IField>();
var op = NullityOperator.IsNotNull;
var clause = new NullityClause(mockField.Object, op);
var mockBuilder = new Mock <IConstraintDeclBuilder>();
// Act
var negation = clause.Negation();
negation.AddDeclarationTo(mockBuilder.Object);
// Assert
var expected = new NullityClause(mockField.Object, NullityOperator.IsNull);
mockBuilder.Verify(builder => builder.AddClause(expected.Matcher()));
mockBuilder.VerifyNoOtherCalls();
}
