diff --git a/src/test/java/fr/u_paris/gla/project/utils/CSVToolsTest.java b/src/test/java/fr/u_paris/gla/project/utils/CSVToolsTest.java
new file mode 100644
index 0000000..6ab4895
--- /dev/null
+++ b/src/test/java/fr/u_paris/gla/project/utils/CSVToolsTest.java
@@ -0,0 +1,76 @@
+package fr.u_paris.gla.project.utils;
+
+
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+import java.util.function.Consumer;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CSVToolsTest {
+
+
+
+
+    @Test
+    void readCSVFromURL_invalid() {
+        assertThrowsExactly(IOException.class,() -> {
+                    Consumer<String[]> test = s -> System.out.println(Arrays.toString(s));
+                    CSVTools.readCSVFromURL("https://google.fr",
+                            test);
+
+                }
+                );
+    }
+
+    @Test
+    void readCSVFromURL_valid() {
+        assertDoesNotThrow(() -> {
+                    Consumer<String[]> test = s -> System.out.println(Arrays.toString(s));
+                    CSVTools.readCSVFromURL("https://people.sc.fsu.edu/~jburkardt/data/csv/addresses.csv",
+                            test);
+
+                }
+        );
+    }
+
+    @Test
+    void writeCSVToFile() {
+
+        assertDoesNotThrow(() -> {
+            String[] stuff = {"jsqdsqdsqsqffdfgzava", "pfezegrrbeebn", "dfbsduifzegbczi", "sdfsdfcy"};
+            String[][] t = {stuff, stuff};
+            Stream<String[]> test = Arrays.stream(t);
+            CSVTools.writeCSVToFile("test.csv", test);
+
+        });
+    }
+
+    @Test
+    void writeCSVToFile_specialName() {
+
+        assertDoesNotThrow(() -> {
+            String[] stuff = {"jsqdsqdsqsqffdfgzava", "pfezegrrbeebn", "dfbsduifzegbczi", "sdfsdfcy"};
+            String[][] t = {stuff, stuff};
+            Stream<String[]> test = Arrays.stream(t);
+            CSVTools.writeCSVToFile("éè'-'_-éè_à.csv", test);
+
+        });
+    }
+
+    @Test
+    void writeCSVToFile_invalidName() {
+
+        assertThrows( IOException.class ,() -> {
+            String[] stuff = {"jsqdsqdsqsqffdfgzava", "pfezegrrbeebn", "dfbsduifzegbczi", "sdfsdfcy"};
+            String[][] t = {stuff, stuff};
+            Stream<String[]> test = Arrays.stream(t);
+            CSVTools.writeCSVToFile(".", test);
+
+        });
+    }
+}
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