hyperledger-composer

nodejs test hyperledger composer v0.15 fails with Error: Card not found: [email protected]

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With the implementation of cards in v0.15, previous versions of test routines which used profiles (obviously) won’t work. However, I cannot find an SDK approach to create the necessary cards to run tests. The ‘before’ section of code up through v0.14 for my tests has looked like the following, which uses an embedded profile, creates a temporary instance of the network and runs the tests:

What are the functional differences between Fabric Javascript SDK and Hyperledger Composer?

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Other than the fact that Composer makes deployment and testing of prototype business networks easier and the fact that we don’t have to know golang to develop chaincode, what is the difference in the functionalities that these interfaces provide that may lead one to choose one over the other?