A method of testing a network node in a communication system according to some embodiments includes obtaining a test case specification that describes a test scenario associated with the network node and extracting textual features from the test case specification. A feature vector is generated that includes the extracted textual features, and the feature vector is mapped to a plurality of available test scripts. The method selects one or more of the plurality of available test scripts for execution in response to the mapping of the feature vector. For one or more of the selected test scripts the method generates a confidence score that measures a confidence of an association of the test case specification with the selected test script. Related systems are disclosed.