From 5b1c8e910161737a42e9707d8972c896eecba71c Mon Sep 17 00:00:00 2001
From: JPANZO <jpanzo@bpe.local>
Date: Thu, 17 Feb 2022 22:23:18 +0100
Subject: [PATCH] Method mute of CDPlayer tested on checkingTheReturnValue ->
 ShouldReturnAString.

---
 src/main/java/device/cdPlayer/CDPlayer.java     |  2 +-
 src/test/java/device/cdPlayer/CDPlayerTest.java | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/main/java/device/cdPlayer/CDPlayer.java b/src/main/java/device/cdPlayer/CDPlayer.java
index 09e52fa..7ee9b81 100644
--- a/src/main/java/device/cdPlayer/CDPlayer.java
+++ b/src/main/java/device/cdPlayer/CDPlayer.java
@@ -120,7 +120,7 @@ public class CDPlayer implements Device {
 
     @Override
     public String unmute() {
-        return null;
+        return ("Volume unmute.");
     }
 
     @Override
diff --git a/src/test/java/device/cdPlayer/CDPlayerTest.java b/src/test/java/device/cdPlayer/CDPlayerTest.java
index 5975e17..31353b1 100644
--- a/src/test/java/device/cdPlayer/CDPlayerTest.java
+++ b/src/test/java/device/cdPlayer/CDPlayerTest.java
@@ -565,7 +565,17 @@ class CDPlayerTest {
         );
     }
 
-
+    @ParameterizedTest
+    @MethodSource("unmuteTestData")
+    void unmuteTest(String testName,String cases, CDPlayer _cdPlayer,String expectedResult) {
+        assertThat(_cdPlayer.unmute()).describedAs(testName).isEqualTo(expectedResult);
+    }
+    static Stream<Arguments> unmuteTestData () {
+        CDPlayer cdPlayer1 = new CDPlayer();
+        return Stream.of(
+                Arguments.of("[unmute() by checkingTheReturnValue ] => ShouldReturnAString", "Case1", cdPlayer1, "Volume unmute.")
+        );
+    }
 
 
     }
\ No newline at end of file