A method of testing an Integrated Access Backhaul (IAB) node is disclosed, the method including: providing a device under test as well as a test equipment for testing the device under test, wherein the device under test corresponds to an Integrated Access Backhaul (IAB) node to be tested; simulating at least one Integrated Access Backhaul (IAB) donor by the test equipment; simulating a participant by the test equipment, the participant being connected with the device under test; establishing at least one connection between the device under test and the test equipment, wherein a backhaul link is established with the test equipment; configuring link resources for the device under test via configuration information by the test equipment; gathering reception information by the test equipment; and combining the configuration information with the reception information by the test equipment in order to verify correct resource utilization of the device under test. Further, a test system for testing an Integrated Access Backhaul (IAB) node is described.