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Diffstat (limited to 'testing_and_debugging/slides.tex')
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1 files changed, 192 insertions, 116 deletions
diff --git a/testing_and_debugging/slides.tex b/testing_and_debugging/slides.tex index d83387e..2402bc9 100644 --- a/testing_and_debugging/slides.tex +++ b/testing_and_debugging/slides.tex @@ -1,4 +1,4 @@ -% Created 2010-11-12 Fri 02:00 +% Created 2011-07-19 Tue 16:14 \documentclass[presentation]{beamer} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} @@ -8,7 +8,6 @@ \usepackage{float} \usepackage{wrapfig} \usepackage{soul} -\usepackage{t1enc} \usepackage{textcomp} \usepackage{marvosym} \usepackage{wasysym} @@ -24,14 +23,13 @@ commentstyle=\color{red}\itshape, stringstyle=\color{red}, showstringspaces=false, keywordstyle=\color{blue}\bfseries} \providecommand{\alert}[1]{\textbf{#1}} -\title{Testing and debugging} +\title{} \author{FOSSEE} \date{} \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} -\maketitle @@ -41,42 +39,76 @@ showstringspaces=false, keywordstyle=\color{blue}\bfseries} + +\begin{frame} + +\begin{center} +\vspace{12pt} +\textcolor{blue}{\huge Testing and Debugging} +\end{center} +\vspace{18pt} +\begin{center} +\vspace{10pt} +\includegraphics[scale=0.95]{../images/fossee-logo.png}\\ +\vspace{5pt} +\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ +\scriptsize Funded by National Mission on Education through ICT\\ +\scriptsize MHRD,Govt. of India\\ +\includegraphics[scale=0.30]{../images/iitb-logo.png}\\ +\end{center} +\end{frame} \begin{frame} -\frametitle{Outline} -\label{sec-1} +\frametitle{Objectives} +\label{sec-2} + + At the end of the tutorial, you will be able to, + \begin{itemize} -\item What software Testing is? -\item Learn to test simple functions for their functionality. -\item Learn how to automate tests. -\item Need for coding style and some of the standards followed by the Python Community. -\item Handling Errors and Exceptions. +\item Understand what is software testing. +\item Test simple functions for their functionality. +\item Automate tests. +\item Understand the need for coding style +\item Learn some of the standards followed by the Python Community. +\item Handle Errors and Exceptions. +\end{itemize} +\end{frame} +\begin{frame} +\frametitle{Pre-requisite} +\label{sec-3} + +Spoken tutorial on - + +\begin{itemize} +\item Getting started with functions. +\item Advanced Features of functions. \end{itemize} \end{frame} \begin{frame}[fragile] \frametitle{gcd function} -\label{sec-2} +\label{sec-4} + \begin{itemize} \item Create gcd.py file with: -\end{itemize} - -\begin{verbatim} +\lstset{language=Python} +\begin{lstlisting} def gcd(a, b): if a % b == 0: return b return gcd(b, a%b) -\end{verbatim} +\end{lstlisting} +\end{itemize} \end{frame} \begin{frame}[fragile] \frametitle{Test for gcd.py} -\label{sec-3} +\label{sec-5} + \begin{itemize} \item Edit gcd.py file -\end{itemize} - -\begin{verbatim} +\lstset{language=Python} +\begin{lstlisting} def gcd(a, b): if b == 0: return a @@ -87,68 +119,109 @@ if __name__=='__main__': if result != 16: print "Test failed" print "Test Passed" -\end{verbatim} +\end{lstlisting} +\end{itemize} +\end{frame} +\begin{frame} +\frametitle{Idiom} +\label{sec-6} + +if \_\_name\_\_ == `\_\_main\_\_': +\end{frame} +\begin{frame} +\frametitle{Exercise 1} +\label{sec-7} + + +\begin{itemize} +\item Write code for gcd and write tests for it +\end{itemize} +\end{frame} +\begin{frame} +\frametitle{Structure of file} +\label{sec-8} + + +\begin{center} +\begin{tabular}{|l|c|c|c} +\hline + 12 & 28 & 4 \\ +\hline + 18 & 36 & 18 \\ +\hline + 4678 & 39763 & 2339 \\ +\hline +\end{tabular} +\end{center} \end{frame} \begin{frame}[fragile] \frametitle{Automating tests} -\label{sec-4} +\label{sec-9} -\begin{verbatim} -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{verbatim} +\lstset{language=Python} +\begin{lstlisting} +if __name__ == '__main__': + for line in open('lcmtestcases.txt'): + numbers = line.split() + x = int(numbers[0]) + y = int(numbers[1]) + result = int(numbers[2]) + if lcm(x, y) != result: + print "Failed lcm test for", x, y + else: + print "Test passed" +\end{lstlisting} \end{frame} \begin{frame} -\frametitle{Question 1} -\label{sec-5} +\frametitle{Exercise 2} +\label{sec-10} - For the same inputs as gcd write automated tests for LCM. + +\begin{itemize} +\item For the same inputs as gcd write automated tests for LCM. +\end{itemize} \end{frame} \begin{frame}[fragile] -\frametitle{Solution 1} -\label{sec-6} +\frametitle{Solution 2} +\label{sec-11} -\begin{verbatim} +\lstset{language=Python} +\begin{lstlisting} def gcd(a, b): - if a % b == 0: - return b - return gcd(b, a%b) - - def lcm(a, b): - return (a * b) / gcd(a, b) - - if __name__ == '__main__': + if a % b == 0: + return b + return gcd(b, a%b) +def lcm(a, b): + return (a * b) / gcd(a, b) +if __name__ == '__main__': for line in open('lcmtestcases.txt'): - numbers = line.split() - x = int(numbers[0]) - y = int(numbers[1]) - result = int(numbers[2]) - if lcm(x, y) != result: - print "Failed lcm test for", x, y -\end{verbatim} + numbers = line.split() + x = int(numbers[0]) + y = int(numbers[1]) + result = int(numbers[2]) + if lcm(x, y) != result: + print "Failed lcm test for", x, y + else: + print "Test passed", result +\end{lstlisting} \end{frame} \begin{frame}[fragile] \frametitle{Meaning full names} -\label{sec-7} +\label{sec-12} -\begin{verbatim} +\lstset{language=Python} +\begin{lstlisting} amount = 12.68 denom = 0.05 nCoins = round(amount / denom) rAmount = nCoins * denom -\end{verbatim} +\end{lstlisting} \end{frame} \begin{frame} \frametitle{Code style} -\label{sec-8} +\label{sec-13} + \begin{itemize} \item Four Space Indentation @@ -157,73 +230,37 @@ rAmount = nCoins * denom blank line \item Use Docstring \item White space around operators - \begin{itemize} \item l = 32 \% 4 \end{itemize} - \end{itemize} \end{frame} \begin{frame} -\frametitle{Question 2} -\label{sec-9} +\frametitle{Exercise 3} +\label{sec-14} + \begin{itemize} \item Give meaningful names to the variables in following code - \begin{itemize} \item c = a / b \end{itemize} - \end{itemize} \end{frame} \begin{frame}[fragile] -\frametitle{Solution 2} -\label{sec-10} +\frametitle{Solution 3} +\label{sec-15} -\begin{verbatim} +\lstset{language=Python} +\begin{lstlisting} quotient = dividend / divisor -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Code Snippet} -\label{sec-11} - -\begin{verbatim} - -while True print 'Hello world' -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Error} -\label{sec-12} - -\begin{lstlisting} - while True print 'Hello world' - \end{lstlisting} - \begin{lstlisting} - File "<stdin>", line 1, in ? - while True print 'Hello world' -SyntaxError: invalid syntax \end{lstlisting} \end{frame} \begin{frame}[fragile] -\frametitle{Code Snippet} -\label{sec-13} - -\begin{verbatim} -a = raw_input("Enter a number") -try: - num = int(a) - except: - print "Wrong input ..." -\end{verbatim} -\end{frame} -\begin{frame}[fragile] \frametitle{Using idb} -\label{sec-14} +\label{sec-16} \small \begin{lstlisting} @@ -247,32 +284,71 @@ ipdb> total \end{frame} \begin{frame} \frametitle{Summary} -\label{sec-15} +\label{sec-17} + + In this tutorial, we have learnt to, + \begin{itemize} \item Create simple tests for a function. -\item Learn to Automate tests using many predefined test cases. -\item Good coding standards. -\item Difference between syntax error and exception. -\item Handling exception using try and except. -\item Using \%debug for debugging on ipython. +\item Automate tests using many predefined test cases. +\item Use the python coding standards. +\item Differentiate between syntax error and exception. +\item Handle exception using ``try'' and ``except''. +\item Use ``\%debug'' for debugging on ipython. \end{itemize} \end{frame} \begin{frame} -\frametitle{Thank you!} -\label{sec-16} +\frametitle{Evaluation} +\label{sec-18} + + +\begin{enumerate} +\item What is proper indentation for python code according to style guidelines? +\begin{itemize} +\item two space identation +\item three space identation +\item four Space Indentation +\item no Indentation +\end{itemize} +\vspace{3pt} +\item How do you start the debugger on ipython? +\begin{itemize} +\item debug +\item \%debug +\item \%debugger +\item start debugger +\end{itemize} +\vspace{3pt} +\item What is the idiom used for running python scripts in a standalone manner? +\end{enumerate} +\end{frame} +\begin{frame} +\frametitle{Solutions} +\label{sec-19} + + +\begin{enumerate} +\item Four Space Indentation +\vspace{12pt} +\item \%debug +\vspace{12pt} +\item if \_\_name\_\_ == `\_\_main\_\_': +\end{enumerate} +\end{frame} +\begin{frame} \begin{block}{} \begin{center} - This spoken tutorial has been produced by the - \textcolor{blue}{FOSSEE} team, which is funded by the + \textcolor{blue}{\Large THANK YOU!} \end{center} + \end{block} +\begin{block}{} \begin{center} - \textcolor{blue}{National Mission on Education through \\ - Information \& Communication Technology \\ - MHRD, Govt. of India}. + For more Information, visit our website\\ + \url{http://fossee.in/} \end{center} \end{block} \end{frame} -\end{document} +\end{document}
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