[Media] Add some tests in ResumeMediaBrowserTest to ensure we're

disconnecting old browsers.

Bug: 225403871
Test: atest ResumeMediaBrowserTest
Change-Id: I8706451edacf7ed530582cc034843d365401b66a

packages/SystemUI/tests/src/com/android/systemui/media/ResumeMediaBrowserTest.kt

@@ -27,6 +27,7 @@ import android.testing.AndroidTestingRunner
 import android.testing.TestableLooper
 import androidx.test.filters.SmallTest
 import com.android.systemui.SysuiTestCase
+import com.android.systemui.util.mockito.mock
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -135,6 +136,24 @@ public class ResumeMediaBrowserTest : SysuiTestCase() {
         verify(callback).addTrack(eq(description), eq(component), eq(resumeBrowser))
     }
 
+    @Test
+    fun testConnection_calledTwice_oldBrowserDisconnected() {
+        val oldBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(oldBrowser)
+
+        // When testConnection can connect to the service
+        setupBrowserConnection()
+        resumeBrowser.testConnection()
+
+        // And testConnection is called again
+        val newBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(newBrowser)
+        resumeBrowser.testConnection()
+
+        // Then we disconnect the old browser
+        verify(oldBrowser).disconnect()
+    }
+
     @Test
     fun testFindRecentMedia_connectionFails_error() {
         // When findRecentMedia is called and we cannot connect
@@ -168,6 +187,24 @@ public class ResumeMediaBrowserTest : SysuiTestCase() {
         verify(callback).onConnected()
     }
 
+    @Test
+    fun testFindRecentMedia_calledTwice_oldBrowserDisconnected() {
+        val oldBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(oldBrowser)
+
+        // When findRecentMedia is called and we connect
+        setupBrowserConnection()
+        resumeBrowser.findRecentMedia()
+
+        // And findRecentMedia is called again
+        val newBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(newBrowser)
+        resumeBrowser.findRecentMedia()
+
+        // Then we disconnect the old browser
+        verify(oldBrowser).disconnect()
+    }
+
     @Test
     fun testFindRecentMedia_noChildren_error() {
         // When findRecentMedia is called and we connect, but do not get any results
@@ -223,6 +260,24 @@ public class ResumeMediaBrowserTest : SysuiTestCase() {
         verify(transportControls).play()
     }
 
+    @Test
+    fun testRestart_calledTwice_oldBrowserDisconnected() {
+        val oldBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(oldBrowser)
+
+        // When restart is called and we connect successfully
+        setupBrowserConnection()
+        resumeBrowser.restart()
+
+        // And restart is called again
+        val newBrowser = mock<MediaBrowser>()
+        whenever(browserFactory.create(any(), any(), any())).thenReturn(newBrowser)
+        resumeBrowser.restart()
+
+        // Then we disconnect the old browser
+        verify(oldBrowser).disconnect()
+    }
+
     /**
      * Helper function to mock a failed connection
      */