Unit testing with TLF

While unit testing complex formating, I hit several problems. Below are simple tests that fail with an error. Does anybody know what is wrong with these tests?
Thanks for any hints,
Marc
 public function test_apply_Link():void
 var init:XML = <TextFlow xmlns="http://ns.adobe.com/textLayout/2008">aaa</TextFlow>
 var textFlow:TextFlow = TextConverter.importToFlow(init, TextConverter.TEXT_LAYOUT_FORMAT)
 var editManager:IEditManager = new EditManager()
 textFlow.interactionManager = editManager
 editManager.selectRange(1,2)
 editManager.applyLink("http://livedocs.adobe.com/", "_self", true) // throws error:
 RangeError: Error #2006: The supplied index is out of bounds.
 at flash.text.engine::GroupElement/replaceElements()
 at flashx.textLayout.elements::ParagraphElement/http://ns.adobe.com/textLayout/internal/2008::insertBlockElement()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\ParagraphElement.as:277]
 at flashx.textLayout.elements::FlowLeafElement/http://ns.adobe.com/textLayout/internal/2008::createContentElement()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\FlowLeafElement.as:95]
 at flashx.textLayout.elements::SpanElement/http://ns.adobe.com/textLayout/internal/2008::createContentElement()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\SpanElement.as:77]
 at flashx.textLayout.elements::ParagraphElement/http://ns.adobe.com/textLayout/internal/2008::createTextBlock()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\ParagraphElement.as:100]
 at flashx.textLayout.elements::ParagraphElement/http://ns.adobe.com/textLayout/internal/2008::createContentElement()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\ParagraphElement.as:241]
 at flashx.textLayout.elements::SubParagraphGroupElement/http://ns.adobe.com/textLayout/internal/2008::setParentAndRelativeStart()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\SubParagraphGroupElement.as:178]
 at flashx.textLayout.elements::LinkElement/http://ns.adobe.com/textLayout/internal/2008::setParentAndRelativeStart()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\LinkElement.as:495]
 at flashx.textLayout.elements::FlowGroupElement/replaceChildren()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\FlowGroupElement.as:764]
 at Function/http://adobe.com/AS3/2006/builtin::apply()
 at flashx.textLayout.elements::ParagraphElement/replaceChildren()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_core\src\flashx\textLayout\elements\ParagraphElement.as:302]
 at flashx.textLayout.edit::TextFlowEdit$/insertNewSPBlock()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\TextFlowEdit.as:655]
 at flashx.textLayout.edit::TextFlowEdit$/makeLink()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\TextFlowEdit.as:503]
 at flashx.textLayout.operations::ApplyLinkOperation/doOperation()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\operations\ApplyLinkOperation.as:146]
 at flashx.textLayout.edit::EditManager/doInternal()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\EditManager.as:418]
 at flashx.textLayout.edit::EditManager/doOperation()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\EditManager.as:321]
 at flashx.textLayout.edit::EditManager/applyLink()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\EditManager.as:1137]
 public function test_undo():void
 var init:XML = <TextFlow xmlns="http://ns.adobe.com/textLayout/2008">aaa</TextFlow>
 var textFlow:TextFlow = TextConverter.importToFlow(init, TextConverter.TEXT_LAYOUT_FORMAT)
 var undoManager:IUndoManager = new UndoManager()
 var editManager:IEditManager = new EditManager(undoManager)
 textFlow.interactionManager = editManager
 editManager.selectRange(1,2)
 var format:TextLayoutFormat = new TextLayoutFormat()
 format.fontWeight = FontWeight.BOLD
 editManager.applyLeafFormat(format)
 undoManager.undo() // throws error:
 TypeError: Error #1009: Cannot access a property or method of a null object reference
 at flashx.textLayout.edit::EditManager/performUndo()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\edit\EditManager.as:540]
 at flashx.textLayout.operations::FlowOperation/performUndo()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\textLayout\operations\FlowOperation.as:181]
 at flashx.undo::UndoManager/undo()[E:\dev\trunk\frameworks\projects\textLayout\textLayout_edit\src\flashx\undo\UndoManager.as:197]

For your second issue, you didn't display TextFlow before you selected the Text. I also changed the FontWeight.BOLD to "bold" in order to pass compilation. The code below should work:
var
var controllerOne:ContainerController = new ContainerController(container, 500, 500);
var undoManager:IUndoManager = new UndoManager()
var init:XML = <TextFlow xmlns="http://ns.adobe.com/textLayout/2008">aaa</TextFlow>
var textFlow:TextFlow = TextConverter.importToFlow(init, TextConverter.TEXT_LAYOUT_FORMAT)
addChild(container);
textFlow.flowComposer.addController(controllerOne);
textFlow.flowComposer.updateAllControllers();
var editManager:IEditManager = new EditManager();textFlow.interactionManager = editManager;
editManager.selectRange(1,2)
var format:TextLayoutFormat = new TextLayoutFormat();format.fontWeight ="bold";container:Sprite = new Sprite();
editManager.applyLeafFormat(format);
undoManager.undo();
textFlow.flowComposer.updateAllControllers();

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I've read <a href="https://weblogs.sdn.sap.com/pub/u/266">Thomas Weiss</a>'s weblog: <a href="/people/thomas.weiss/blog/2004/12/17/a-spotlight-on-abap-unit-part-1 Spotlight on ABAP Unit Part 1</a>.
I posted a question there, but apparently Thomas can't answer at the moment, and since I'm impatient for getting someone's opinion, I reckon we can discuss that topic here :^)
As explained in the <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/c1be1003-0701-0010-3795-f87160de6483">NetWeaver Developers Guide Using ABAP</a>, the test classes are part of the program under test (PUT):
In ABAP Unit, test classes are part of the production code of the TU. This avoids problems arising from the test code being separate from the production code:
- Programs and tests must be kept synchronized.
- You have to ensure that the test and program code are transported together.
- External test code only enables black box tests with an outside perspective of the tested program.
Since the test code is part of the production code, it is easy to keep the unit tests and the
production code up to date if the latter is changed.
Although the test code and the production code are transported through the system landscape, ABAP unit tests do not increase the load on the production system. By default, the test code is not compiled in the production system. Therefore, the test code can never be executed in the production system.
On the other hand, this idea is quite different from what suggested by other unit testing frameworks.
For instance, the documentation of <a href="http://www.ruby-doc.org/stdlib/libdoc/test/unit/rdoc/classes/Test/Unit.html">Test::Unit - Ruby Unit Testing Framework</a> reads:
Its handy to collect a bunch of related tests, each test represented by a method, into a common test class that knows how to run them.
The tests will be in a separate class from the code theyre testing for a couple of reasons. First of all, it allows your code to stay uncluttered with test code, making it easier to maintain. Second, it allows the tests to be stripped out for deployment, since theyre really there for you, the developer, and your users dont need them. Third, and most importantly, it allows you to set up a common test fixture for your tests to run against.
Regarding the advantages outlined by NetWeaver Developers Guide:
- Programs and tests might be kept synchronized even if they don't belong to the same unit of code.
- Moreover, you could assure that the test and program code are transported together by saving them in the same package.
- And quite frankly, I don't have a thourough understanding of the reason why external tests only allow black box tests with an outside perspective.
What are your opinions on this?
Regards, Davide

Hi,
when I started unit testing with JUnit I was quite surprised that SAP groups the tests with the production code. But now I actually really like it. It has a few advantages:
- Good tests serve as an excellent documentation so why not bundling them together.
- If you want to look at the tests they are easy to find.
- I write all my class tests as local classes. I found out that it really helps me to focus on writing tests only for the class under test. Sometimes it is quite easy to forget the "unit" and write integration tests again.
Regarding your question:
>And quite frankly, I don't have a thourough understanding of the reason why external tests only allow black box tests with an outside perspective.
Usually I would not use the term black box testing in this context. Maybe you mean that it is easy to access private attributes, methods when you group class and testclass together?
Normally black box testing means that you cannot look at the implementation of the code under test. So your tests are based on the specifications or if there is not one, on your common sense.
cheers
Thomas

SQL Server Unit Tests

Hi SQL Server Experts,
About SQL Server Unit Tests (vide
http://msdn.microsoft.com/en-us/library/jj851203(v=vs.103).aspx), please help with inputs on pros and cons of SQL Server Unit Tests. Any ideal recommendation?
Thanks

Blog on the topic: "Database unit testing is used for feature testing of your individual modules (stored procedures, triggers or user defined functions) that is to say your module performs as expected. Apart from that, it is also used to ensure that
subsequent changes to the module does not break any functionality.
At first glace, it looks like this would add overhead to create vs. doing adhoc testing, but Visual Studio lets you automatically generate T-SQL code stubs to test the database object which you can customize as per your need.
Visual Studio provides Database Unit Test Designer which you can write/define T-SQL scripts (also insert SQL assertion in this code) that calls your module and then evaluates the execution result against the different test conditions which indicates your
modules execution success or failure."
LINK:
SQL Server Unit Testing with Visual Studio 2010
>Please pardon my ignorance as I am coming back to SQL Server after a brief gap.
You may have to brush up with T-SQL prior to using a sophisticated tool like this:
http://www.sqlusa.com/bestpractices/
Kalman Toth Database & OLAP Architect
SQL Server 2014 Design & Programming
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Unit testing with TLF

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