diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4008766..98a1b80 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,6 +36,4 @@ jobs:
           java-version: ${{ matrix.java }}
           cache: maven
       - name: Compile with Maven
-        run: mvn --batch-mode clean verify
-      - name: Run Codecov
-        uses: codecov/codecov-action@v4
\ No newline at end of file
+        run: mvn --batch-mode clean verify
\ No newline at end of file
diff --git a/src/test/kotlin/com/vonage/client/kt/MessagesTest.kt b/src/test/kotlin/com/vonage/client/kt/MessagesTest.kt
index 93d6174..2cc47ea 100644
--- a/src/test/kotlin/com/vonage/client/kt/MessagesTest.kt
+++ b/src/test/kotlin/com/vonage/client/kt/MessagesTest.kt
@@ -1,5 +1,6 @@
 package com.vonage.client.kt
 
+import com.fasterxml.jackson.databind.ObjectMapper
 import com.marcinziolo.kotlin.wiremock.*
 import com.vonage.client.messages.MessageRequest
 import org.junit.jupiter.api.Test
@@ -8,21 +9,26 @@ import kotlin.test.assertEquals
 
 class MessagesTest : AbstractTest() {
     val messagesClient = vonageClient.messages
+    val messageUuid = UUID.fromString("aaaaaaaa-bbbb-4ccc-8ddd-0123456789ab")
+    val mmsChannel = "mms"
+    val whatsappChannel = "whatsapp"
+    val viberChannel = "viber_service"
+    val messengerChannel = "messenger"
     val fromNumber = "447700900001"
     val toNumber = "447712345689"
     val text = "Hello, World!"
-    val messageUuid = UUID.fromString("aaaaaaaa-bbbb-4ccc-8ddd-0123456789ab")
+    val caption = "Additional text to accompany the media"
+    val imageUrl = "https://example.com/image.jpg"
+    val captionMap = mutableMapOf("caption" to caption)
 
-    private fun mockResponse(expectedBodyParams: Map<String, String>) {
+    private fun mockResponse(expectedBodyParams: Map<String, Any>) {
         wiremock.post {
             url equalTo "/v1/messages"
             headers contains "User-Agent" like "vonage-java-sdk.*"
             headers contains "Authorization" like "Bearer eyJ.+"
             headers contains "Content-Type" equalTo "application/json"
             headers contains "Accept" equalTo "application/json"
-            for (entry in expectedBodyParams.entries) {
-                body contains entry.key equalTo entry.value
-            }
+            body equalTo ObjectMapper().writeValueAsString(expectedBodyParams)
         } returns {
             header = "Content-Type" to "application/json"
             statusCode = 202
@@ -34,44 +40,89 @@ class MessagesTest : AbstractTest() {
         }
     }
 
-    private fun testSend(expectedBodyParams: Map<String, String>, req: MessageRequest) {
+    private fun testSend(expectedBodyParams: Map<String, Any>, req: MessageRequest) {
         mockResponse(expectedBodyParams)
         assertEquals(messageUuid, messagesClient.send(req))
     }
 
-    private fun expectedTextBody(channel: String): Map<String, String> = mapOf(
-        "message_type" to "text",
-        "text" to text,
-        "to" to toNumber,
-        "from" to fromNumber,
-        "channel" to channel
-    )
+    private fun baseBody(messageType: String, channel: String): Map<String, Any> =
+        mapOf(
+            "message_type" to messageType,
+            "to" to toNumber,
+            "from" to fromNumber,
+            "channel" to channel
+        )
+
+    private fun textBody(channel: String): Map<String, Any> =
+        baseBody("text", channel) + mapOf("text" to text)
+
+    private fun mediaBody(channel: String, messageType: String, url: String, additionalParams: Map<String, Any>? = null): Map<String, Any> =
+        baseBody(messageType, channel) + mapOf(messageType to mapOf("url" to url) + (additionalParams ?: mapOf()))
+
+    private fun imageBody(channel: String, additionalParams : Map<String, Any>? = null): Map<String, Any> =
+        mediaBody(channel, "image", imageUrl, additionalParams)
 
     @Test
     fun `send SMS`() {
-        testSend(expectedTextBody("sms"), smsText {
+        testSend(textBody("sms"), smsText {
             from(fromNumber); to(toNumber); text(text)
         })
     }
 
     @Test
     fun `send WhatsApp text`() {
-        testSend(expectedTextBody("whatsapp"), whatsappText {
+        testSend(textBody(whatsappChannel), whatsappText {
             from(fromNumber); to(toNumber); text(text)
         })
     }
 
     @Test
     fun `send Viber text`() {
-        testSend(expectedTextBody("viber_service"), viberText {
+        testSend(textBody(viberChannel), viberText {
             from(fromNumber); to(toNumber); text(text)
         })
     }
 
     @Test
     fun `send Messenger text`() {
-        testSend(expectedTextBody("messenger"), messengerText {
+        testSend(textBody(messengerChannel), messengerText {
             from(fromNumber); to(toNumber); text(text)
         })
     }
+
+    @Test
+    fun `send MMS vCard`() {
+        val vcardUrl = "https://example.com/conatact.vcf"
+        testSend(mediaBody(mmsChannel, "vcard", vcardUrl, captionMap), mmsVcard {
+            from(fromNumber); to(toNumber); url(vcardUrl); caption(caption)
+        })
+    }
+
+    @Test
+    fun `send MMS image`() {
+        testSend(imageBody(mmsChannel, captionMap), mmsImage {
+            from(fromNumber); to(toNumber); url(imageUrl); caption(caption)
+        })
+    }
+
+    @Test
+    fun `send WhatsApp image`() {
+        testSend(imageBody(whatsappChannel, captionMap), whatsappImage {
+            from(fromNumber); to(toNumber); url(imageUrl); caption(caption)
+        })
+    }
+
+    @Test
+    fun `send Viber image`() {
+        testSend(imageBody(viberChannel), viberImage {
+            from(fromNumber); to(toNumber); url(imageUrl)
+        })
+    }
+
+    @Test
+    fun `send Messenger image`() {
+        testSend(imageBody(messengerChannel), messengerImage {
+            from(fromNumber); to(toNumber); url(imageUrl)
+        })
+    }
 }
\ No newline at end of file