Debugging functional tests in Bitcoin: Competting “Jsonrpcexception: The method was not found”

Bitcoin functional tests are necessary to ensure the correct implementation of blockchain and wallet. Sometimes, however, these tests fail with a mysterious error message, “Jsonrpcexepce: the method was not found (-32601)”. In this article, we will review three joint functional tests that have failed in the “Test_Runner.Py” file and solutions were provided to solve the problem.

Test 1: Test_Coins

The “Test_Coins” test checks that the coins are created correctly. Expects a specific method of blockchain method with normal input parameters.

Solution

Make sure that the “Createcoin” method is implemented in the “blockchain.py” file and has passed the required arguments (`Coinname name ',' amount ',' Pubkey ') to the expected method of calling:

Python

Blockchain.py

defreatecoin (Coinname, amount, pubkey):

...

Check if this implementation corresponds to the expectations of the test.

Test 2: Test_Coinsgettransaction

The “Test_Coinsgettransaction” test checks that the coin transaction is correctly downloaded. Expects a specific method of blockchain method with normal input parameters.

Solution

Check if the “Gettransaction” method in the “blockchain.pyfile corresponds to the expected signature of the function:

Python

Blockchain.py

Def Gettransaction (ID):

...

Check if this implementation meets the test expectations. If the solution does not solve the problem, make sure that calling the method is correct and transmits the required arguments.

Test 3: Test_bytes

The “Test_Betes” test checks if bytes are correctly sent by JSON-RPC. Expects a specific method of blockchain method with normal input parameters.

Solution

Check if the “Sendbyte” method in the “Blockchain.py” file corresponds to the expected signature of the function:

`Python

Blockchain.py

Deftbytes (ID, data):

...

Make sure this implementation meets the expectations of the test. If the solution does not solve the problem, check that the method of the method is correct and transmits the required arguments.

additional tips

• Make sure that all tests work before trying to debug the “Test_runner.Py” file.

• Use debugger or printing instructions to check the variables and calling the function when performing the test.

• Consider adding more errors and testing tests to diagnose problems.

By following these steps, you should be able to identify and fix the problem, causing “jsonrpcexception: method not found” errors in your functional bitcoin tests.