There is an option for nose:

    -x, --stop
    Stop running tests after the first error or failure

Is this what you need?

Following link can help you with all the options available for nosetests.
    http://nose.readthedocs.org/en/latest/usage.html

I know the difference between synchronized method and synchronized block but I am not sure about the synchronized block part.

Assuming I have this code

    class Test {
      private int x=0;
      private Object lockObject = new Object();

      public void incBlock() {
        synchronized(lockObject) {
          x++;
        }
        System.out.println(&quot;x=&quot;+x);
      }

      public void incThis() {  // same as synchronized method
        synchronized(this) {
          x++;
        }
        System.out.println(&quot;x=&quot;+x);
      }
    }

In this case what is the difference between using _lockObject_ and using _this_ as the lock? It seems to be the same to me..

When you decide to use synchronized block, how do you decide which object to be the lock?

What is the difference between synchronized on lockObject and using this as the lock?

I&#39;m currently using NetBeans 6.9 with the PHP plugin and a PHP Application from Remote Server project. However, every time I upload or download with it, I&#39;m prompted with a warning that reads:

&gt; The authenticity of host x can&#39;t be established. RSA key fingerprint is y. Are you sure you want to continue connecting?

Can I store the RSA key fingerprint of the remote server or not have NetBeans confirm the key before taking action?

I&#39;m connecting to my own server, so yes, I always trust it. Getting that popup is annoying and I would like to be able to simply have a way of either checking the key against a stored key and telling me if the key changes or just connecting to the server I tell it to, regardless of the RSA key fingerprint.

NetBeans always shows warning: &quot;The authenticity of host x can&#39;t be established&quot; after upload, download or synchronize

It seems that if a testcase fails, nose will attempt to execute the next testcases. How can I  make nose  to abort all execution upon the first error in any testcase? I tried sys.exit() but it gave me some ugly and lengthy messages about it

Python nose framework: How to stop execution upon first failure

<p>It seems that if a testcase fails, nose will attempt to execute the next testcases. How can I  make nose  to abort all execution upon the first error in any testcase? I tried sys.exit() but it gave me some ugly and lengthy messages about it</p>


I&#39;m trying to center a tkinter window. I know I can programatically get the size of the window and the size of the screen and use that to set the geometry, but I&#39;m wondering if there&#39;s a simpler way to center the window on the screen.

How to center a window on the screen in Tkinter?

How can I get the current language in the current thread in a model or in the admin?

How can I get the current language in Django?

How to find the maximum of 2 numbers?

    value = -9999
    run = problem.getscore()

I need to compare the 2 values i.e `value` and `run` and find the maximum of 2. I need some python function to operate it?


How do I find the maximum of 2 numbers?

Sometimes it makes sense to cluster related data together.  I tend to do so with a dict, e.g.,

    self.group = dict(a=1, b=2, c=3)
    print self.group[&#39;a&#39;]

One of my colleagues prefers to create a class

    class groupClass(object):
        def __init__(a, b, c):
            self.a = a
            self.b = b
            self.c = c
    self.group = groupClass(1, 2, 3)
    print self.group.a

Note that we are not defining any class methods.

I like to use a dict because I like to minimize the number of lines of code.  My colleague thinks the code is more readable if you use a class, and it makes it easier to add methods to the class in the future.

Which do you prefer and why?



Using Python class as a data container

I am having problems understanding how to email an attachment using Python. I have successfully emailed simple messages with the `smtplib`. Could someone please explain how to send an attachment in an email. I know there are other posts online but as a Python beginner I find them hard to understand. 

    

How to send email attachments?

Let&#39;s say you have some code like this (in a made-up langague, since it does not matter for this question):

    constant float PI = 3.14;
    float getPi() 
    { 
       return PI;
    }

Would you test it like this:

    testPiIs3point14()
    {
       // Test using literal in test case
       AssertEquals( getPi(), 3.14 );
    }

Or like this:

    testPiIs3Point14()
    {
       // Test using constant from implementation in test case
       AssertEquals( getPi(), PI );
    }

In other words, do you use constants from your system under test in your test cases?  Or is this considered an implementation detail?

Do you use constants from the implementation in your test cases?

I completed my first proper project in Python and now my task is to write tests for it.

Since this is the first time I did a project, this is the first time I would be writing tests for it.

The question is, *how* do I start? I have absolutely no idea. Can anyone point me to some documentation/ tutorial/ link/ book that I can use to start with writing tests (and I guess unit testing in particular)

Any advice will be welcomed on this topic. 

Writing unit tests in Python: How do I start?

I&#39;m strongly considering adding unit testing to an existing project that is in production. It was started 18 months ago before I could really see any benefit of TDD ***(face palm)***, so now it&#39;s a rather large solution with a number of projects and I haven&#39;t the foggiest idea where to start in adding unit tests. What&#39;s making me consider this is that occasionally an old bug seems to resurface, or a bug is checked in as fixed without *really* being fixed. Unit testing would reduce or prevents these issues occuring.

By reading *[similar][1]* questions on SO, I&#39;ve seen recommendations such as starting at the bug tracker and writing a test case for each bug to prevent regression. However, I&#39;m concerned that I&#39;ll end up missing the big picture and end up missing fundamental tests that would have been included if I&#39;d used TDD from the get go.

Are there any process/steps that should be adhered to in order to ensure that an existing solutions is **properly** unit tested and not just bodged in? How can I ensure that the tests are of a good quality and aren&#39;t just a case *of any test is better than no tests*.

So I guess what I&#39;m also asking is;

 - Is it worth the effort for an
   existing solution that&#39;s in production?
 - Would it better to ignore the testing
   for this project and add it in a
   possible future re-write?
 - What will be more benefical; spending
   a few weeks adding tests or a few
   weeks adding functionality?

(Obviously the answer to the third point is entirely dependant on whether you&#39;re speaking to management or a developer)


----------


**Reason for Bounty**
-----------------

Adding a bounty to try and attract a broader range of answers that not only confirm my existing suspicion that it is a good thing to do, but also some good reasons against. 

I&#39;m aiming to write this question up later with pros and cons to try and show management that it&#39;s worth spending the man hours on moving the future development of the product to TDD. I want to approach this challenge and develop my reasoning without my own biased point of view.

  [1]: https://stackoverflow.com/questions/1046816/adding-unit-testing-to-an-existing-asp-net-web-forms-application

Can unit testing be successfully added into an existing production project? If so, how and is it worth it?

what I want to do is construct a moq for I1 - which is fine ... however in the course of the method that I am testing that uses this mock I need to cast it to I2 in order to access some properties that are not on I1

    Interface I1 
    { int AProperty{get;set;}}
    
    Interface I2
    {int AnotherProperty{get;set;}}

I then have some objects

    Class O1 : I1 {}

and 

    Class O2 : O1 , I2 {}

the problem is that when i have an instance of a I2 implementing object I can cast it to I1 in order to access the methods that are implmented through that interface. In code this is not a problem and everythign works as expected.

The only problem comes when writing a unit test on that class.

The interfaces also expose a method called GetNewInstance which returns an initialised instance of the the implementing object cast into the IGetNewInstance&lt;T&gt; interface ... i can usually mock this fine and make it return itself (and so I keep working with the mock object).

however when you try to cast this returned object of type I2 into I1 a null reference results - this makes sense as the mock object that implements I2 does not inherit from anything that inherits I1.

the question is how can i force the mock object to inherit from both I1 ansd I2 at the same time?

MOQ - how to mock an interface that needs to be cast to another interface?

I&#39;ve googled about this, but didn&#39;t find anything relevant. I&#39;ve got something like this:

    Object obj = getObject();
    Mockeable mock= Mockito.mock(Mockeable.class);
    Mockito.when(mock.mymethod(obj )).thenReturn(null);
      
    Testeable testableObj = new Testeable();
    testableObj.setMockeable(mock);
    command.runtestmethod();

Now, I want to verify that `mymethod(Object o)`, which is called inside `runtestmethod()`, was called with the Object `o`, not any other. But I always pass the test, whatever I put on the verification, for example, with:

    Mockito.verify(mock.mymethod(Mockito.eq(obj)));

or

    Mockito.verify(mock.mymethod(Mockito.eq(null)));

or

    Mockito.verify(mock.mymethod(Mockito.eq(&quot;something_else&quot;)));



I always pass the test. How can I accomplish that verification (if possible)? 

Thank you.

Content Type	Original Author	Original Content on Stackoverflow
Question	GabiMe	View Question on Stackoverflow
Solution 1 - Python	gruszczy	View Answer on Stackoverflow

Python nose framework: How to stop execution upon first failure

Python Problem Overview

Python Solutions

Solution 1 - Python

NetBeans always shows warning: "The authenticity of host x can't be established" after upload, download or synchronize

What is the difference between synchronized on lockObject and using this as the lock?

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