diff --git a/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Bottle.kt b/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Bottle.kt
index dbb6845..a3c5b82 100644
--- a/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Bottle.kt
+++ b/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Bottle.kt
@@ -2,5 +2,11 @@ package fmt.kotlin.fundamentals
 
 data class Bottle(
     val name: String,
-    val year: Int
-)
\ No newline at end of file
+    val year: Int,
+    val color: WineColor
+)
+
+enum class WineColor {
+    RED,
+    WHITE
+}
\ No newline at end of file
diff --git a/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt b/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt
index 63e6393..a203d30 100644
--- a/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt
+++ b/tp9/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt
@@ -8,4 +8,6 @@ data class Cellar(
             "Bouteille de ${name} de ${year}"
         }
     }
+
+    fun describeRedBottles() = ""
 }
\ No newline at end of file
diff --git a/tp9/src/test/kotlin/fmt/kotlin/fundamentals/CellarTest.kt b/tp9/src/test/kotlin/fmt/kotlin/fundamentals/CellarTest.kt
index 22ed7b8..4327ab0 100644
--- a/tp9/src/test/kotlin/fmt/kotlin/fundamentals/CellarTest.kt
+++ b/tp9/src/test/kotlin/fmt/kotlin/fundamentals/CellarTest.kt
@@ -1,5 +1,7 @@
 package fmt.kotlin.fundamentals
 
+import fmt.kotlin.fundamentals.WineColor.RED
+import fmt.kotlin.fundamentals.WineColor.WHITE
 import org.junit.jupiter.api.Assertions.*
 import org.junit.jupiter.api.Test
 import strikt.api.expectThat
@@ -11,8 +13,8 @@ class CellarTest {
     fun `should get bottles description`() {
         val description = Cellar(
             listOf(
-                Bottle("Coucheroy", 2005),
-                Bottle("Pedesclaux", 2009)
+                Bottle("Coucheroy", 2005, RED),
+                Bottle("Pedesclaux", 2009, RED)
             )
         ).describeBottles()
 
@@ -21,4 +23,21 @@ class CellarTest {
             Bouteille de Pedesclaux de 2009
         """.trimIndent())
     }
+
+    @Test
+    fun `should get red bottles description`() {
+        val description = Cellar(
+            listOf(
+                Bottle("Coucheroy", 2005, RED),
+                Bottle("Camarsac", 2018, WHITE),
+                Bottle("Pedesclaux", 2009, RED),
+            )
+        ).describeRedBottles()
+
+        expectThat(description).isEqualTo("""
+            Bouteille de Coucheroy de 2005
+            Bouteille de blanc
+            Bouteille de Pedesclaux de 2009
+        """.trimIndent())
+    }
 }
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