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73 lines
2.4 KiB
ReStructuredText
73 lines
2.4 KiB
ReStructuredText
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Debugging a CorDapp
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===================
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.. contents::
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There are several ways to debug your CorDapp.
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Using a ``MockNetwork``
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-----------------------
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You can attach the `IntelliJ IDEA debugger <https://www.jetbrains.com/help/idea/debugging-code.html>`_ to a
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``MockNetwork`` to debug your CorDapp:
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* Define your flow tests as per :doc:`api-testing`
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* In your ``MockNetwork``, ensure that ``threadPerNode`` is set to ``false``
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* Set your breakpoints
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* Run the flow tests using the debugger. When the tests hit a breakpoint, execution will pause
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Using the node driver
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---------------------
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You can also attach the `IntelliJ IDEA debugger <https://www.jetbrains.com/help/idea/debugging-code.html>`_ to nodes
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running via the node driver to debug your CorDapp.
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With the nodes in-process
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^^^^^^^^^^^^^^^^^^^^^^^^^
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1. Define a network using the node driver as per :doc:`tutorial-integration-testing`
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* In your ``DriverParameters``, ensure that ``startNodesInProcess`` is set to ``true``
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2. Run the driver using the debugger
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3. Set your breakpoints
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4. Interact with your nodes. When execution hits a breakpoint, execution will pause
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* The nodes' webservers always run in a separate process, and cannot be attached to by the debugger
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With remote debugging
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^^^^^^^^^^^^^^^^^^^^^
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1. Define a network using the node driver as per :doc:`tutorial-integration-testing`
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* In your ``DriverParameters``, ensure that ``startNodesInProcess`` is set to ``false`` and ``isDebug`` is set to
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``true``
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2. Run the driver. The remote debug ports for each node will be automatically generated and printed to the terminal.
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For example:
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.. sourcecode:: none
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[INFO ] 11:39:55,471 [driver-pool-thread-0] (DriverDSLImpl.kt:814) internal.DriverDSLImpl.startOutOfProcessNode -
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Starting out-of-process Node PartyA, debug port is 5008, jolokia monitoring port is not enabled {}
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3. Attach the debugger to the node of interest on its debug port:
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* In IntelliJ IDEA, create a new run/debug configuration of type ``Remote``
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* Set the run/debug configuration's ``Port`` to the debug port
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* Start the run/debug configuration in debug mode
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4. Set your breakpoints
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5. Interact with your node. When execution hits a breakpoint, execution will pause
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* The nodes' webservers always run in a separate process, and cannot be attached to by the debugger
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By enabling remote debugging on a node
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--------------------------------------
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See :ref:`enabling-remote-debugging`.
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