diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/PaymentMethodValidatorTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/PaymentMethodValidatorTest.java
new file mode 100644
index 0000000..8ed39e9
--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/PaymentMethodValidatorTest.java
@@ -0,0 +1,50 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.subscription.validator;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.subscription.PaymentMethodInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.subscription.PaymentType;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class PaymentMethodValidatorTest {
+
+    @Test
+    @DisplayName("Should validate payment method with valid data")
+    void testValidateValidPaymentMethod() {
+        PaymentMethodInfo validPaymentMethod = new PaymentMethodInfo(PaymentType.CB.name(), "Maxime Lebreton");
+
+        assertDoesNotThrow(() -> PaymentMethodValidator.validate(validPaymentMethod));
+    }
+
+    @Nested
+    @DisplayName("PaymentType validation tests")
+    class PaymentTypeValidationTests {
+
+        @ParameterizedTest
+        @EnumSource(value = PaymentType.class)
+        void testValidatePaymentType(PaymentType paymentType) {
+            String validPaymentType = paymentType.toString();
+            PaymentMethodInfo validPaymentMethod = new PaymentMethodInfo(validPaymentType, "Maxime Lebreton");
+
+            assertDoesNotThrow(() -> PaymentMethodValidator.validate(validPaymentMethod));
+        }
+
+        @ParameterizedTest
+        @ValueSource(strings =  {"jambon", "    ", ""})
+        void testNotValidatePaymentType(String invalidPaymentType) {
+            PaymentMethodInfo invalidPaymentMethod = new PaymentMethodInfo(invalidPaymentType, "Maxime Lebreton");
+
+            NotValidPaymentMethodException exception = assertThrows(
+                    NotValidPaymentMethodException.class,
+                    () -> PaymentMethodValidator.validate(invalidPaymentMethod)
+            );
+
+            assertEquals(PaymentMethodValidator.MODE_PAIEMENT_IS_NOT_VALIDE, exception.getMessage());
+        }
+    }
+}
diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/SubscriptionValidatorTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/SubscriptionValidatorTest.java
new file mode 100644
index 0000000..c9d3d64
--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/validator/SubscriptionValidatorTest.java
@@ -0,0 +1,84 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.subscription.validator;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.subscription.SubscriptionDurationDesired;
+import fr.iut_fbleau.but3.dev62.mylibrary.subscription.SubscriptionInfo;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
+
+import java.time.LocalDate;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class SubscriptionValidatorTest {
+
+    @Test
+    @DisplayName("Should validate subscription with valid data")
+    void testValidateValidSubscription() {
+        LocalDate desiredStartDate = LocalDate.of(2026, 6, 24);
+        SubscriptionInfo validSubscription = new SubscriptionInfo(SubscriptionDurationDesired.THREE.getValue(), desiredStartDate);
+
+        assertDoesNotThrow(() -> SubscriptionValidator.validate(validSubscription));
+    }
+
+    @Nested
+    @DisplayName("SubscriptionDurationDesired validation tests")
+    class SubscriptionDurationDesiredValidationTests {
+
+        @ParameterizedTest
+        @EnumSource(value = SubscriptionDurationDesired.class)
+        void testValidateSubscriptionDurationDesired(SubscriptionDurationDesired subscriptionDurationDesired) {
+            Integer validSubscriptionDurationDesired = subscriptionDurationDesired.getValue();
+            LocalDate desiredStartDate = LocalDate.of(2026, 6, 24);
+            SubscriptionInfo validSubscription = new SubscriptionInfo(validSubscriptionDurationDesired, desiredStartDate);
+
+            assertDoesNotThrow(() -> SubscriptionValidator.validate(validSubscription));
+        }
+
+        @Test
+        @DisplayName("Should throw exception when subscriptionDurationDesired is not 3, 6 or 12")
+        void testNotValidateSubscriptionDurationDesired() {
+            Integer notValidSubscriptionDurationDesired = 1 ;
+            LocalDate desiredStartDate = LocalDate.of(2026, 6, 24);
+            SubscriptionInfo invalidSubscription = new SubscriptionInfo(notValidSubscriptionDurationDesired, desiredStartDate);
+
+            NotValidSubscriptionException exception = assertThrows(
+                    NotValidSubscriptionException.class,
+                    () -> SubscriptionValidator.validate(invalidSubscription)
+            );
+            assertEquals(SubscriptionValidator.SUBSCRIPTION_DURATION_DESIRED_IS_NOT_VALIDE, exception.getMessage());
+        }
+    }
+
+    @Nested
+    @DisplayName("DesiredStartDate validation tests")
+    class DesiredStartDateValidationTests {
+
+        @Test
+        @DisplayName("Should validate when desiredStartDate is before today")
+        void testValidateDesiredStartDate() {
+            LocalDate desiredStartDate = LocalDate.now();
+            SubscriptionInfo validSubscription = new SubscriptionInfo(SubscriptionDurationDesired.THREE.getValue(), desiredStartDate);
+
+            assertDoesNotThrow(() -> SubscriptionValidator.validate(validSubscription));
+        }
+
+        @Test
+        @DisplayName("Should throw exception when desiredStartDate is before today")
+        void testNotValidateDesiredStartDate() {
+            LocalDate desiredStartDate = LocalDate.of(2026, 3, 24);
+            SubscriptionInfo validSubscription = new SubscriptionInfo(SubscriptionDurationDesired.THREE.getValue(), desiredStartDate);
+
+            NotValidSubscriptionException exception = assertThrows(
+                    NotValidSubscriptionException.class,
+                    () -> SubscriptionValidator.validate(validSubscription)
+            );
+
+            assertEquals(SubscriptionValidator.DESIRED_START_DATE_CANNOT_BE_BEFORE_TODAY, exception.getMessage());
+        }
+    }
+}