--- a/testing-debugging/slides.org Mon Nov 08 01:56:03 2010 +0530
+++ b/testing-debugging/slides.org Mon Nov 08 02:02:29 2010 +0530
@@ -15,10 +15,10 @@
#+LaTeX_HEADER: \usepackage{listings}
#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
-#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
+#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{red},
#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries}
-#+TITLE: Accessing parts of arrays
+#+TITLE: Testing and debugging
#+AUTHOR: FOSSEE
#+EMAIL:
#+DATE:
@@ -29,95 +29,58 @@
#+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
-* Outline
- - Manipulating one and multi dimensional arrays
- - Access and change individual elements
- - Access and change rows and columns
- - Slicing and striding on arrays to access chunks
- - Read images into arrays and manipulations
-* Sample Arrays
- #+begin_src python
- In []: A = array([12, 23, 34, 45, 56])
-
- In []: C = array([[11, 12, 13, 14, 15],
- [21, 22, 23, 24, 25],
- [31, 32, 33, 34, 35],
- [41, 42, 43, 44, 45],
- [51, 52, 53, 54, 55]])
-
- #+end_src
-* Question 1
- Change the last column of ~C~ to zeroes.
-* Solution 1
- #+begin_src python
- In []: C[:, -1] = 0
- #+end_src
-* Question 2
- Change ~A~ to ~[11, 12, 13, 14, 15]~.
-* Solution 2
- #+begin_src python
- In []: A[:] = [11, 12, 13, 14, 15]
- #+end_src
-* squares.png
- #+begin_latex
- \begin{center}
- \includegraphics[scale=0.6]{squares}
- \end{center}
- #+end_latex
-* Question 3
- - obtain ~[22, 23]~ from ~C~.
- - obtain ~[11, 21, 31, 41]~ from ~C~.
- - obtain ~[21, 31, 41, 0]~.
-* Solution 3
- #+begin_src python
- In []: C[1, 1:3]
- In []: C[0:4, 0]
- In []: C[1:5, 0]
- #+end_src
-* Question 4
- Obtain ~[[23, 24], [33, -34]]~ from ~C~
-* Solution 4
- #+begin_src python
- In []: C[1:3, 2:4]
- #+end_src
-* Question 5
- Obtain the square in the center of the image
-* Solution 5
- #+begin_src python
- In []: imshow(I[75:225, 75:225])
- #+end_src
-* Question 6
- Obtain the following
- #+begin_src python
- [[12, 0], [42, 0]]
- [[12, 13, 14], [0, 0, 0]]
- #+end_src
-
-* Solution 6
- #+begin_src python
- In []: C[::3, 1::3]
- In []: C[::4, 1:4]
- #+end_src
-* Summary
- You should now be able to --
- - Manipulate 1D \& Multi dimensional arrays
- - Access and change individual elements
- - Access and change rows and columns
- - Slice and stride on arrays
- - Read images into arrays and manipulate them.
-* Thank you!
-#+begin_latex
- \begin{block}{}
- \begin{center}
- This spoken tutorial has been produced by the
- \textcolor{blue}{FOSSEE} team, which is funded by the
- \end{center}
- \begin{center}
- \textcolor{blue}{National Mission on Education through \\
- Information \& Communication Technology \\
- MHRD, Govt. of India}.
- \end{center}
- \end{block}
-#+end_latex
+* Outline
+ - What software Testing is?
+ - Learn to test simple functions for their functionality.
+ - Learn how to automate tests.
+ - Need for coding style and some of the standards followed by the Python Community.
+ - Handling Errors and Exceptions.
+* gcd function
+ - Create gcd.py file with:
+#+begin_LaTeX
+\begin{lstlisting}[language=python]
+ def gcd(a, b):
+ if a % b == 0:
+ return b
+ return gcd(b, a%b)
+\end{lstlisting}
+#+end_LaTeX
+
+* Test for gcd.py
+ - Edit gcd.py file
+#+begin_LaTeX
+\begin{lstlisting}[language=python]
+
+ def gcd(a, b):
+ if b == 0:
+ return a
+ return gcd(b, a%b)
+
+ if __name__=='__main__':
+ result = gcd(48, 64)
+ if result != 16:
+ print "Test failed"
+ print "Test Passed"
+\end{lstlisting}
+#+end_LaTeX
+
+* Automating tests
+#+begin_LaTeX
+\begin{lstlisting}[language=python]
+
+ if __name=__='__main__':
+ for line in open('numbers.txt'):
+ numbers = line.split()
+ x = int(numbers[0])
+ y = int(numbers[1])
+ result = int(numbers[2])
+ if gcd(x, y) != result:
+ print "Failed gcd test
+ for", x, y
+\end{lstlisting}
+#+end_LaTeX
+
+
+