update unit testing slide

Tutorials/T05-UnitTesting/slides/Unit Testing.tex

@@ -127,7 +127,7 @@ McMaster University\\ }
   \begin{itemize}
     \item{You can catch bugs much earlier}
     \item{Provides documentation on a specific function}
-    \item{Helps developer improve the implementation design of a function}
+    \item{Helps developer improve the implementation/design of a function}
     \item{Every good developer should be a good tester too!\\
 No one likes to work with someone who doesn't verify/test if their code works.}
 
@@ -291,8 +291,7 @@ class TestCircles:
 		
 	\end{itemize}
 
-	\item{By default, \texttt{approx} considers numbers within a relative tolerance of 1e-6 of its expected value to be equal. }
-
+	\item{By default, \texttt{approx} considers numbers within a relative tolerance of 1e-6 and absolute tolerance of 1e-12 of its expected value to be equal. }
 \end{itemize}
 \begin{lstlisting}[language=Python, escapechar=!]
 >>> 1.0001 == approx(1)
@@ -304,7 +303,6 @@ True
 \end{lstlisting}
 \end{frame}
 
-
 \begin{frame}[fragile]
 \frametitle{Redundant code in tests}
 \begin{lstlisting}[language=Python, escapechar=!]
@@ -319,7 +317,7 @@ class TestCircles:
 
 	def test_xcoord_are_not_equal(self):
 		!\colorbox{yellow}{circle = CircleT(1,2,3)}!
-		assert circle.xcoord() != 1
+		assert not circle.xcoord() == 1
 \end{lstlisting}
 \end{frame}
 
@@ -341,7 +339,7 @@ class TestCircles:
 		assert self.circle.xcoord() == 1
 
 	def test_xcoord_are_not_equal(self):
-		assert self.circle.xcoord() != 2
+		assert not self.circle.xcoord() == 2
 \end{lstlisting}
 \end{frame}
 
@@ -369,41 +367,6 @@ class TestCircles:
 \end{frame}
 
 
-% -----------------------------------------------------
-\section{Code Coverage}
-% -----------------------------------------------------
-\begin{frame}[fragile]
-\frametitle{How much should I test?}
-\begin{itemize}
-	\item {Test all requirements in each function}
-	\item{Cover edge cases that may cause unintended consequences}
-	\item{Have an acceptable amount of
-            \href{https://en.wikipedia.org/wiki/Code_coverage}{code coverage}}
-        \item{Code coverage will be covered in more detail in future lectures}
-\end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{Code Coverage}
-\begin{itemize}
-\item{Function coverage: has each function (or subroutine) in the program been called?}
-\item{Statement coverage: has each statement in the program been executed?}
-\end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{Code Coverage}
-\begin{itemize}
-\item{Branch coverage: has each branch of each control structure (such as in if and case statements) been executed?}
-	\begin{itemize}
-		\item{For example, given an if statement, have both the true and false branches been executed?}
-		\item{Another way of saying this is, has every edge in the program been executed?}
-	\end{itemize}
-\item{Condition coverage (or predicate coverage): has each Boolean sub-expression evaluated both to true and false?}
-\end{itemize}
-\end{frame}
-
-
 \begin{frame}[fragile]
 \frametitle{Asserting about exceptions}
 \begin{itemize}
@@ -415,8 +378,8 @@ class TestCircles:
 import pytest
 
 def test_zero_division():
-with pytest.raises(ZeroDivisionError):
-1 / 0
+	with pytest.raises(ZeroDivisionError):
+		1 / 0
 \end{lstlisting}
 \end{frame}
 
@@ -444,6 +407,42 @@ def test_zero_division():
 
 \end{frame}
 
+
+% -----------------------------------------------------
+\section{Code Coverage}
+% -----------------------------------------------------
+\begin{frame}[fragile]
+\frametitle{How much should I test?}
+\begin{itemize}
+	\item {Test all requirements in each function}
+	\item{Cover edge cases that may cause unintended consequences}
+	\item{Have an acceptable amount of
+            \href{https://en.wikipedia.org/wiki/Code_coverage}{code coverage}}
+        \item{Code coverage will be covered in more detail in future lectures}
+\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Code Coverage}
+\begin{itemize}
+\item{Function coverage: has each function (or subroutine) in the program been called?}
+\item{Statement coverage: has each statement in the program been executed?}
+\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Code Coverage}
+\begin{itemize}
+\item{Branch coverage: has each branch of each control structure (such as in if and case statements) been executed?}
+	\begin{itemize}
+		\item{For example, given an if statement, have both the true and false branches been executed?}
+		\item{Another way of saying this is, has every edge in the program been executed?}
+	\end{itemize}
+\item{Condition coverage (or predicate coverage): has each Boolean sub-expression evaluated both to true and false?}
+\end{itemize}
+\end{frame}
+
+
 \begin{frame}[fragile]
 \frametitle{Pytest  plugin for measuring coverage}
 	\begin{itemize}