diff --git a/src/test/java/fr/myny/grid/BuildGridTest.java b/src/test/java/fr/myny/grid/BuildGridTest.java
new file mode 100644
index 0000000..366362a
--- /dev/null
+++ b/src/test/java/fr/myny/grid/BuildGridTest.java
@@ -0,0 +1,27 @@
+package fr.myny.grid;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+class BuildGridTest {
+
+    @Test
+    void putValue() {
+        BuildGrid grid = new BuildGrid(5);
+        grid.putValue(18.5F, 2, 4);
+        grid.displayGrid();
+    }
+
+    @Test
+    void displayGrid() {
+        BuildGrid grid = new BuildGrid(5);
+        grid.displayGrid();
+    }
+
+    @Test
+    void fillWith() {
+        BuildGrid grid = new BuildGrid(5);
+        grid.fillWith(5.5F);
+        grid.displayGrid();
+    }
+}
\ No newline at end of file