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diff --git a/test/README.md b/test/README.md index 15f6df790f..868eb667ae 100644 --- a/test/README.md +++ b/test/README.md @@ -155,6 +155,26 @@ import pdb; pdb.set_trace() anywhere in the test. You will then be able to inspect variables, as well as call methods that interact with the bitcoind nodes-under-test. +If further introspection of the bitcoind instances themselves becomes +necessary, this can be accomplished by first setting a pdb breakpoint +at an appropriate location, running the test to that point, then using +`gdb` to attach to the process and debug. + +For instance, to attach to `self.node[1]` during a run: + +```bash +2017-06-27 14:13:56.686000 TestFramework (INFO): Initializing test directory /tmp/user/1000/testo9vsdjo3 +``` + +use the directory path to get the pid from the pid file: + +```bash +cat /tmp/user/1000/testo9vsdjo3/node1/regtest/bitcoind.pid +gdb /home/example/bitcoind <pid> +``` + +Note: gdb attach step may require `sudo` + ### Util tests Util tests can be run locally by running `test/util/bitcoin-util-test.py`. |