diff --git a/make.sh b/make.sh
index db0cb65..bf89eb1 100755
--- a/make.sh
+++ b/make.sh
@@ -18,3 +18,21 @@ if [[ $1 == "preview" ]]; then
 		exit
 	fi
 fi
+
+if [[ $1 == "test" ]]; then
+	[[ $2 ]] || set -- "$1" "build"
+	if [[ $2 == "build" ]]; then
+		mkdir -p out
+		for i in $(ls test); do
+			gcc "test/$i" -o "out/test_$(echo $i | awk -F. '{print $1}')" $FLAGS
+		done
+		exit
+	elif [[ $2 == "run" ]]; then
+		$0 test build
+		for i in $(ls out/test_*); do
+			echo "--- $i ---"
+			$i
+		done
+		exit
+	fi
+fi
diff --git a/test/neuron_io.c b/test/neuron_io.c
new file mode 100644
index 0000000..27d4805
--- /dev/null
+++ b/test/neuron_io.c
@@ -0,0 +1,65 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "../src/mnist/neuron_io.c"
+
+
+Neurone* creer_neurone(int nb_sortants) {
+    Neurone* neurone = malloc(2*sizeof(float*)+6*sizeof(float));
+    neurone->poids_sortants = malloc(sizeof(float)*nb_sortants);
+    neurone->dw = malloc(sizeof(float)*nb_sortants);
+
+    for (int i=0; i < nb_sortants; i++) {
+        neurone->poids_sortants[i] = 0.5;
+        neurone->dw[i] = 0.0;
+    }
+    neurone->activation = 0.0;
+    neurone->biais = 0.0;
+    neurone->z = 0.0;
+    neurone->dactivation = 0.0;
+    neurone->dbiais = 0.0;
+    neurone->dz = 0.0;
+
+    return neurone;
+}
+
+
+Couche* creer_couche(int nb_neurones, int nb_sortants) {
+    Couche* couche = malloc(sizeof(int)+sizeof(Neurone**));
+    Neurone** tab = malloc(sizeof(Neurone*)*nb_neurones);
+
+    couche->nb_neurone = nb_neurones;
+    couche->neurone = tab;
+
+    for (int i=0; i<nb_neurones; i++) {
+        tab[i] = creer_neurone(nb_sortants);
+    }
+    return couche;
+};
+
+
+Reseau* creer_reseau(int nb_couches, int nb_max_neurones, int nb_min_neurones) {
+    Reseau* reseau = malloc(sizeof(int)+sizeof(Couche**));
+    reseau->couche = malloc(sizeof(Couche*)*nb_couches);
+    int nb_neurones[nb_couches+1];
+
+    reseau->nb_couche = nb_couches;
+
+    for (int i=0; i < nb_couches; i++) {
+        nb_neurones[i] = i*(nb_min_neurones-nb_max_neurones)/(nb_couches-1) + nb_max_neurones;
+    }
+    nb_neurones[nb_couches] = 0;
+
+    for (int i=0; i < nb_couches; i++) {
+        reseau->couche[i] = creer_couche(nb_neurones[i], nb_neurones[i+1]);
+    }
+    return reseau;
+}
+
+int main() {
+    Reseau* reseau = creer_reseau(5, 300, 10);
+    ecrire_reseau(".test-cache/neuron_io.bin", reseau);
+    return 1;
+}
\ No newline at end of file