1. A computer program product for identifying at least one subroutine from a test script comprising: a non-transitory computer readable storage medium having computer readable code embodied therewith, the computer readable program code including: computer readable program code that identifies at least one subroutine from at least one test script, the subroutine includes at least one instruction class, the instruction class includes at least a instruction class type and a subroutine object type, the test script includes at least one test script action, and the test script action includes at least a test script action type and a test script object type; computer readable program code that encodes the instruction class as a subroutine vector in a vector space model; computer readable program code that codes the test script action as a test script vector in the vector space model computer readable program code that compares the test script vector to the subroutine vector; computer readable program code that identifies the test script vector as the instruction class if the result of the comparing is above a threshold value; computer readable program code that labels the test vector as a new test script action if the result of the comparing is below the threshold value; and computer readable program code that associates a new identifier with the new test script action.