To run tests against the bindings, as defined in `bindings.gyp` the regtest feature of Bitcoin Core is used, and to enable this feature we currently need to build with the wallet enabled _(not a part of the regular build)_. To do this, export an environment variable and recompile:
If any changes have been made to the bindings in the "src" directory, manually compile the Node.js bindings, as defined in `bindings.gyp`, you can run (-d for debug):
```bash
$ node-gyp -d rebuild
```
Note: `node-gyp` can be installed with `npm install node-gyp -g`
To be able to debug you'll need to have `gdb` and `node` compiled for debugging with gdb using `--gdb` (sometimes called node_g), and you can then run:
```bash
$ gdb --args node examples/node.js
```
To run mocha from within gdb (notice `_mocha` and not `mocha` so that the tests run in the same process):