public void For_collection_links_gracefully_fails()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
// Act
var expression = convention.GetIdExpression((Author a) => a.Posts);
// Assert
Assert.Null(expression);
}
public void For_absent_id_properties_gracefully_fails()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
// Act
var expression = convention.GetIdExpression((Comment c) => c.Post);
// Assert
Assert.Null(expression);
}
public void For_collection_links_gracefully_fails()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
// Act
var expression = convention.GetIdExpression((Author a) => a.Posts);
// Assert
Assert.Null(expression);
}
public void For_absent_id_properties_gracefully_fails()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
// Act
var expression = convention.GetIdExpression((Comment c) => c.Post);
// Assert
Assert.Null(expression);
}
public void For_existing_id_properties_returns_proper_expression()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
var post = new Post {AuthorId = 4};
// Act
var expression = convention.GetIdExpression((Post p) => p.Author);
// Assert
Assert.NotNull(expression);
var compiled = expression.Compile();
Assert.Equal(compiled(post), 4);
}
public void For_existing_id_properties_returns_proper_expression()
{
// Arrange
var convention = new SimpleLinkedIdConvention();
var post = new Post {
AuthorId = 4
};
// Act
var expression = convention.GetIdExpression((Post p) => p.Author);
// Assert
Assert.NotNull(expression);
var compiled = expression.Compile();
Assert.Equal(compiled(post), 4);
}