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Exchange app for the Ledger Nano S and Ledger Nano X

Introduction

This app is the orchestrator of Swap and Sell functionalities on ledger devices. An overview of the feature is available here

Documentation

Building and installing

To build and install the app on your Nano S or X you must set up the Ledger Nano S or X build environments. Please follow the Getting Started instructions at the Ledger Nano S github repository.

The command to compile and load the app onto the device is:

make load

To remove the app from the device do:

make delete

Testing

Ragger tests

The ./test/python directory contains files for testing the app and its interactions with other apps. It does not contain the binaries used to test the app.

The sideloaded applications binaries need to be generated in their respective repositories and placed in the tests/python/library_binaries directory. The binaries need to be generated with specific flags:

make DEBUG=1 TEST_PUBLIC_KEY=1

Tests can be run with a command like:

pytest -v --tb=short --device nanox -k eth

Legacy Zemu tests

The ./test directory contains files for testing the app and its interactions with other apps. It does not contain the binaries used to test the app. The binaries need to be generated and put in test/elfs/ before launching the tests.

The exchange binaries need to be generated with the following flags.

make TESTING=1 TEST_PUBLIC_KEY=1

Then the application must be placed in the test/elfs/ directory, under the name exchange_nanos.elf, exchange_nanox.elf, or exchange_nanosp.elf depending on the SDK:

// Choose one
// cp bin/app.elf test/elfs/exchange_nanos.elf
// cp bin/app.elf test/elfs/exchange_nanox.elf
// cp bin/app.elf test/elfs/exchange_nanosp.elf

The sideloaded applications binaries need to be generated in their respective repositories and placed in the test/elfs/ directory. For the entire test collection to pass, the following binaries must be present

bitcoin_nanos.elf
bitcoin_nanosp.elf
bitcoin_nanox.elf
ethereum_nanos.elf
ethereum_nanosp.elf
ethereum_nanosp.elf
ethereum_nanox.elf
litecoin_nanos.elf
litecoin_nanosp.elf
litecoin_nanox.elf
stellar_nanos.elf
stellar_nanosp.elf
stellar_nanox.elf
tezos_nanos.elf
tezos_nanosp.elf
tezos_nanox.elf
xrp_nanos.elf
xrp_nanosp.elf
xrp_nanox.elf

To run the tests:

cd test
yarn install
yarn test