diff --git a/project-report/project-report.pdf b/project-report/project-report.pdf
index f93b0a4..bab3295 100644
Binary files a/project-report/project-report.pdf and b/project-report/project-report.pdf differ
diff --git a/project-report/src/latex/analysis.tex b/project-report/src/latex/analysis.tex
index 92fa017..ceeaa5e 100644
--- a/project-report/src/latex/analysis.tex
+++ b/project-report/src/latex/analysis.tex
@@ -96,9 +96,9 @@ \subsection{Requirements}
       \hline
       2 & Develop Artificial Neural Networks from first principles & & \\
       \hline
-      2.1 & Provide utilities for creating Artificial Neural Networks & \hyperref[sec:utils-subpackage]{Page \pageref{sec:utils-subpackage}} & \hyperref[sec:unit-tests]{Page \pageref{sec:unit-tests}} \\
+      2.1 & Provide utilities for creating Artificial Neural Networks & \hyperref[sec:utils-subpackage]{Page \pageref{sec:utils-subpackage}} & \hyperref[sec:models-utils-unit-tests]{Page \pageref{sec:models-utils-unit-tests}} \\
       \hline
-      2.2 & Allow for the saving and loading of trained models' weights and biases & \hyperref[sec:model-module]{Page \pageref{sec:model-module}} & \hyperref[sec:unit-tests]{Page \pageref{sec:unit-tests}} \\
+      2.2 & Allow for the saving and loading of trained models' weights and biases & \hyperref[sec:model-module]{Page \pageref{sec:model-module}} & \hyperref[sec:models-utils-unit-tests]{Page \pageref{sec:models-utils-unit-tests}} \\
       \hline
       2.3 & Allow use of Graphics Cards for faster training & Code not included in report & \hyperref[sec:cpu-vs-gpu-analysis]{Page \pageref{sec:cpu-vs-gpu-analysis}} \\
       \hline
@@ -108,7 +108,7 @@ \subsection{Requirements}
       \hline
       3.2 & Allow unique datasets and train dataset size to be loaded & \hyperref[sec:ann-implementations]{Page \pageref{sec:ann-implementations}} & \hyperref[sec:train-dataset-size-analysis]{Page \pageref{sec:train-dataset-size-analysis}} \\
       \hline
-      4 & Use a database to store a model's features and the location of its weights and biases & \hyperref[sec:__main__-module]{Page \pageref{sec:__main__-module}} & TODO Unit Test \\
+      4 & Use a database to store a model's features and the location of its weights and biases & \hyperref[sec:__main__-module]{Page \pageref{sec:__main__-module}} & \hyperref[sec:database-unit-tests]{Page \pageref{sec:database-unit-tests}} \\
       \hline
       5 & Develop a Graphical User Interface & & \\
       \hline
diff --git a/project-report/src/latex/design.tex b/project-report/src/latex/design.tex
index 8140c20..d129c46 100644
--- a/project-report/src/latex/design.tex
+++ b/project-report/src/latex/design.tex
@@ -100,6 +100,10 @@ \subsection{Database Design}
     \begin{minted}{sql}
     UNIQUE (Dataset, Name)
     \end{minted}
+    \item I will also use the following constraint on each attribute to ensure no attribute is left empty:
+    \begin{minted}{sql}
+    NOT NULL
+    \end{minted}
 \end{itemize}
 
 \subsection{Queries}
diff --git a/project-report/src/latex/testing.tex b/project-report/src/latex/testing.tex
index 0d6f115..cddd089 100644
--- a/project-report/src/latex/testing.tex
+++ b/project-report/src/latex/testing.tex
@@ -173,19 +173,26 @@ \subsubsection{Input Validation Testing} % See table on teams
 \subsection{Automated Testing}
 
 \subsubsection{Unit Tests}
-\label{sec:unit-tests}
 
-Within the test package, I have written the following unit tests for the utils subpackage of both the cpu and gpu subpackage of the models package. Similarly to the code for the cpu 
-and gpu subpackage, it is only worth showing the code for the cpu version as both are very similar in functionality.
+Within the test package, I have written the following unit tests:
 
 \begin{itemize}
-    \item test\_model.py module:
-        \inputminted{python}{./school_project/test/models/cpu/utils/test_model.py}
-
-        \pagebreak
-
-    \item test\_tools.py module:
-        \inputminted{python}{./school_project/test/models/cpu/utils/test_tools.py}
+    \label{sec:database-unit-tests}
+    \item Unit tests for the database in a test\_database.py module:
+        \inputminted{python}{./school_project/test/test_database.py}
+    
+    \label{sec:models-utils-unit-tests}
+    \item Unit tests for the utils subpackage of both the cpu and gpu subpackage of the models package. Similarly to the code for the cpu and gpu subpackage, it is 
+          only worth showing the code for the cpu version as both are very similar in functionality.
+        \begin{itemize}
+            \item test\_model.py module:
+                \inputminted{python}{./school_project/test/models/cpu/utils/test_model.py}
+
+                \pagebreak
+
+            \item test\_tools.py module:
+                \inputminted{python}{./school_project/test/models/cpu/utils/test_tools.py}
+        \end{itemize}
 \end{itemize}
 
 \subsubsection{GitHub Automated Testing}