Use mocked serial discovery in TestBoardListWithFqbnFilter

internal/integrationtest/board/board_test.go

@@ -130,22 +130,17 @@ func TestBoardListMock(t *testing.T) {
 }
 
 func TestBoardListWithFqbnFilter(t *testing.T) {
-	if os.Getenv("CI") != "" {
-		t.Skip("VMs have no serial ports")
-	}
-
 	env, cli := integrationtest.CreateArduinoCLIWithEnvironment(t)
 	defer env.CleanUp()
 
 	_, _, err := cli.Run("core", "update-index")
 	require.NoError(t, err)
+
+	cli.InstallMockedSerialDiscovery(t)
+
 	stdout, _, err := cli.Run("board", "list", "-b", "foo:bar:baz", "--format", "json")
 	require.NoError(t, err)
-	// this is a bit of a passpartout test, it actually filters the "bluetooth boards" locally
-	// but it would succeed even if the filtering wasn't working properly
-	// TODO: find a way to simulate connected boards or create a unit test which
-	// mocks or initializes multiple components
-	requirejson.Query(t, stdout, `.boards | length`, `0`)
+	requirejson.Query(t, stdout, `.detected_ports | length`, `0`)
 }
 
 func TestBoardListWithFqbnFilterInvalid(t *testing.T) {