Error eliminating functional tests in Bitcoin -u: Fixing “JSONRPCEXCEPCES: Method not found”

Bitcoin functional tests are key to ensuring the correctness of the implementation of blockchain and wallets. However, sometimes these tests fail with the cryptic message on the error, Jsonrpcexception: the method was not found (-32601). In this article, we will pass through three usual functional tests that failed in your file Test_runner.py and provide solutions to solve the problem.

Test 1: Test_Coins

The test test tests that the coins are properly created. Expects a specific call for a blockchain method with the correct input parameters.

solution

Ensure that the Createcoin method is implemented into the fileBlockchain.Py and forward the required arguments (Coinname,The amount,Pubkey) in the expected call of the method:

Python

blockchain.py

Def Createcoin (Coinname, Quantity, PubKey):

…

`

Make sure this implementation of the test expectation is corresponding to.

TEST 2: TEST_COINSGETRANSACTION

TestTest_coinsgetrattransationchecks that the coin transaction is properly retrieved. Expects a specific call for a blockchain method with the correct input parameters.

solution

Make sure theGettransationUlBlockchain.Pyfile compared to the expected signature of the function is fits:

Python

blockchain.py

Def Gettransation (ID):

…

`

Make sure this implementation meets the test expectations. If the solution does not solve the problem, ensure that the call of the method is correct and forwards the sought after arguments.

Test 3: Test_bytes

Test testTest_byteschecks that the bytes are correctly transmitted through JSON-RPC. Expects a specific call for a blockchain method with the correct input parameters.

solution

Make sure theSandbytesmethod in file blockchain.pymatch with the expected signature of the function:

Python

blockchain.py

Def Desbytes (ID, Data):

…

`

Ensure that this implementation meets the expectations of the test. If the solution does not solve the problem, make sure the call of the method is correct and forwards the sought after arguments.

additional tips

• Make sure all tests are running before you try to correct the file errorTest_runner.py`.

• Use statements to remove errors or prints to see the variables and calls of functioning while performing a test.

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

Following these steps, you should be able to recognize and solve the problem that causes “Jsonrpcexception: method not found” in your functional bitcoin tests.

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