Integration Tests for Aca-py using Behave¶
Integration tests for aca-py are implemented using Behave functional tests to drive aca-py agents based on the alice/faber demo framework.
If you are new to the ACA-Py integration test suite, this video from ACA-Py Maintainer @ianco describes the Integration Tests in ACA-Py, how to run them and how to add more tests. See also the video at the end of this document about running Aries Agent Test Harness tests before you submit your pull requests.
Getting Started¶
To run the aca-py Behave tests, open a bash shell run the following:
git clone https://github.com/bcgov/von-network
cd von-network
./manage build
./manage start
cd ..
git clone https://github.com/bcgov/indy-tails-server.git
cd indy-tails-server/docker
./manage build
./manage start
cd ../..
git clone https://github.com/hyperledger/aries-cloudagent-python
cd aries-cloudagent-python/demo
./run_bdd -t ~@taa_required
Note that an Indy ledger and tails server are both required (these can also be specified using environment variables).
Note also that some tests require a ledger with TAA enabled, how to run these tests will be described later.
By default the test suite runs using a default (SQLite) wallet, to run the tests using postgres run the following:
# run the above commands, up to cd aries-cloudagent-python/demo
docker run --name some-postgres -e POSTGRES_PASSWORD=mysecretpassword -d -p 5432:5432 postgres:10
ACAPY_ARG_FILE=postgres-indy-args.yml ./run_bdd
To run the tests against the back-end askar libraries (as opposed to indy-sdk) run the following:
(Note that wallet-type is currently the only extra argument supported.)
You can run individual tests by specifying the tag(s):
Running Integration Tests which require TAA¶
To run a local von-network with TAA enabled,run the following:
git clone https://github.com/bcgov/von-network
cd von-network
./manage build
./manage start --taa-sample --logs
You can then run the TAA-enabled tests as follows:
or:
The agents run on a pre-defined set of ports, however occasionally your local system may already be using one of these ports. (For example MacOS recently decided to use 8021 for the ftp proxy service.)
To override the default port settings:
(Note that since the test run multiple agents you require up to 60 available ports.)
Note on BBS Signatures¶
ACA-Py does not come installed with the bbs library by default therefore integation tests involving BBS signatures (tagged with @BBS) will fail unless excluded.
You can exclude BBS tests from running with the tag ~@BBS:
If you want to run all tests including BBS tests you should include the --all-extras flag:
Note: The bbs library may not install on ARM (i.e. aarch64 or arm64) architecture therefore YMMV with testing BBS Signatures on ARM based devices.
Aca-py Integration Tests vs Aries Agent Test Harness (AATH)¶
Aca-py Behave tests are based on the interoperability tests that are implemented in the Aries Agent Test Harness (AATH). Both use Behave (Gherkin) to execute tests against a running aca-py agent (or in the case of AATH, against any compatible Aries agent), however the aca-py integration tests focus on aca-py specific features.
AATH:
- Main purpose is to test interoperability between Aries agents
- Implements detailed tests based on Aries RFC's (runs different scenarios, tests exception paths, etc.)
- Runs Aries agents using Docker images (agents run for the duration of the tests)
- Uses a standard "backchannel" to support integration of any Aries agent
Aca-py integration tests:
- Main purpose is to test aca-py
- Implements tests based on Aries RFC's, but not to the level of detail as AATH (runs (mostly) happy path scenarios against multiple agent configurations)
- Tests aca-py specific configurations and features
- Starts and stops agents for each tests to test different aca-py configurations
- Uses the same Python framework as used for the interactive Alice/Faber demo
Configuration-driven Tests¶
Aca-py integration tests use the same configuration approach as AATH, documented here.
In addition to support for external schemas, credential data etc, the aca-py integration tests support configuration of the aca-py agents that are used to run the test. For example:
Scenario Outline: Present Proof where the prover does not propose a presentation of the proof and is acknowledged
Given "3" agents
| name | role | capabilities |
| Acme | issuer | <Acme_capabilities> |
| Faber | verifier | <Acme_capabilities> |
| Bob | prover | <Bob_capabilities> |
And "<issuer>" and "Bob" have an existing connection
And "Bob" has an issued <Schema_name> credential <Credential_data> from <issuer>
...
Examples:
| issuer | Acme_capabilities | Bob_capabilities | Schema_name | Credential_data | Proof_request |
| Acme | --public-did | | driverslicense | Data_DL_NormalizedValues | DL_age_over_19 |
| Faber | --public-did --mediator | --mediator | driverslicense | Data_DL_NormalizedValues | DL_age_over_19 |
In the above example, the test will run twice using the parameters specified in the "Examples" section. The Acme, Faber and Bob agents will be started for the test and then shut down when the test is completed.
The agent's "capabilities" are specified using the same command-line parameters that are supported for the Alice/Faber demo agents.
Global Configuration for All Aca-py Agents Under Test¶
You can specify parameters that are applied to all aca-py agents using the ACAPY_ARG_FILE environment variable, for example:
... will apply the parameters in the postgres-indy-args.yml file (which just happens to configure a postgres wallet) to all agents under test.
Or the following:
... will run all the tests against an askar wallet (the new shared components, which replace indy-sdk).
Any aca-py argument can be included in the yml file, and order-of-precedence applies (see https://pypi.org/project/ConfigArgParse/).
Specifying Environment Parameters when Running Integration Tests¶
Aca-py integration tests support the following environment-driven configuration:
LEDGER_URL- specify the ledger urlTAILS_NETWORK- specify the docker network the tails server is running onPUBLIC_TAILS_URL- specify the public url of the tails serverACAPY_ARG_FILE- specify global aca-py parameters (see above)
Running specific test scenarios¶
Behave tests are tagged using the same standard tags as used in AATH.
To run a specific set of Aca-py integration tests (or exclude specific tests):
(All command line parameters are passed to the behave command, so all parameters supported by behave can be used.)
Aries Agent Test Harness ACA-Py Tests¶
This video is a presentation by Aries Cloud Agent Python (ACA-Py) developer @ianco about using the Aries Agent Test Harness for local pre-release testing of ACA-Py. Have a big change that you want to test with other Aries Frameworks? Following this guidance to run AATH tests with your under-development branch of ACA-Py.