e2e/

End-to-end Tests

Structure

e2e Package

The e2e package defines an integration testing suite used for full end-to-end testing functionality. This package is decoupled from depending on the Osmosis codebase. It initializes the chains for testing via Docker files. As a result, the test suite may provide the desired Osmosis version to Docker containers during the initialization. This design allows for the opportunity of testing chain upgrades in the future by providing an older Osmosis version to the container, performing the chain upgrade, and running the latest test suite.

The file e2e_suite_test.go defines the testing suite and contains the core bootstrapping logic that creates a testing environment via Docker containers. A testing network is created dynamically with 2 test validators.

The file e2e_test.go contains the actual end-to-end integration tests that utilize the testing suite.

Currently, there is a single test in e2e_test.go to query the balances of a validator.

chain Package

The chain package introduces the logic necessary for initializing a chain by creating a genesis file and all required configuration files such as the app.toml. This package directly depends on the Osmosis codebase.

upgrade Package

The upgrade package starts chain initialization. In addition, there is a Dockerfile init-e2e.Dockerfile. When executed, its container produces all files necessary for starting up a new chain. These resulting files can be mounted on a volume and propagated to our production osmosis container to start the osmosisd service.

The decoupling between chain initialization and start-up allows to minimize the differences between our test suite and the production environment.

Running Locally

To build the binary that initializes the chain

make build-e2e-chain-init

• The produced binary is an entrypoint to the osmosis-e2e-chain-init:debug image.

To build the image for initializing the chain (osmosis-e2e-chain-init:debug)

    make docker-build-e2e-chain-init

To run the chain initialization container locally

    mkdir < path >
    docker run -v < path >:/tmp/osmo-test osmosis-e2e-chain-init:debug --data-dir=/tmp/osmo-test
    sudo rm -r < path > # must be root to clean up

• runs a container with a volume mounted at < path > where all chain initialization files are placed.
• < path > must be absolute.
• --data-dir flag is needed for outputting the files into a directory inside the container

Example:

  docker run\
    -v /home/roman/cosmos/osmosis/tmp:/tmp/osmo-test \
    osmosis-e2e-chain-init:debug \
    --data-dir=/tmp/

  osmo-test

To build the debug Osmosis image

make docker-build-e2e-debug