Asserts are missing for anonymous class #1034

public class A {

    public interface Driver {
        public int getNumber(int n);
    }

    public Driver getDriver() {
        return new Driver() {
            @Override
            public int getNumber(int n) {
                return 2 * n - 1 ;
            }
        };
    }
}

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.DisplayName;

import static org.utbot.runtime.utils.UtUtils.createInstance;
import static org.utbot.runtime.utils.UtUtils.setField;

public class ATest {
    ///region Test suites for executable A.getDriver

    ///region FUZZER: SUCCESSFUL EXECUTIONS for method getDriver()

    @Test
    @DisplayName("getDriver: arg_0 = A()")
    public void testGetDriver() throws Exception {
        A a = new A();

        A.Driver actual = a.getDriver();

        A.Driver expected = ((A.Driver) createInstance("A$1"));
        setField(expected, "A$1", "this$0", a);
    }
    ///endregion

    ///endregion
}

public class A {

    public int a, b = 10;

    public List<Integer> integerStream (int c) {
        return Arrays.asList(a, b, c);
    }
}