59 KiB
Writing Tests for Galaxy
:depth: 1
:local:
{#other_sources}
Other Sources of Documentation
Over the last several years, the most up-to-date documentation on the
structure and running of Galaxy tests has been in the help text for
run_tests.sh script shipped with Galaxy (./run_tests.sh --help).
High-level information on Galaxy's CI process can be found in the
Galaxy Code Architecture Slides
and the corresponding YouTube playlist.
The GTN Writing Tests Tutorial
provides hands-on exercises covering API tests, unit tests, and patterns for
making code testable (monkeypatching, stubs, parametrization).
Some more specifics on running and writing Galaxy client unit tests
can be found in client/README.md of the Galaxy codebase.
{#overview}
An Overview of Galaxy Tests
Quick Reference
| Test Type | Location | Run Command | When to Use |
|---|---|---|---|
| Unit (Python) | test/unit/ |
./run_tests.sh -unit |
Isolated component tests |
| Unit (Client) | client/src/ |
make client-test |
ES6/Vue component tests |
| API | lib/galaxy_test/api/ |
./run_tests.sh -api |
Backend tests via API |
| Integration | test/integration/ |
./run_tests.sh -integration |
Custom Galaxy config |
| Framework | test/functional/tools/ |
./run_tests.sh -framework |
Tool XML testing |
| Workflow Framework | lib/galaxy_test/workflow/ |
./run_tests.sh -framework-workflows |
Workflow evaluation |
| Selenium | lib/galaxy_test/selenium/ |
./run_tests.sh -selenium |
UI tests (WebDriver) |
| Playwright | lib/galaxy_test/selenium/ |
./run_tests.sh -playwright |
UI tests (Playwright) |
| Selenium Integration | test/integration_selenium/ |
./run_tests.sh -selenium |
UI + custom config |
Decision Tree
Does test need running Galaxy server?
├─ NO → Unit test
│ ├─ Python? → test/unit/ (pytest)
│ └─ Client? → client/src/ (Vitest)
└─ YES → Functional test
Does test need web browser?
├─ NO → Does test need custom config?
│ ├─ NO → Tool/workflow only?
│ │ ├─ Tools → Framework test
│ │ ├─ Workflows → Workflow Framework test
│ │ └─ Neither → API test
│ └─ YES → Integration test
└─ YES → Does test need custom config?
├─ NO → Selenium/Playwright test
└─ YES → Selenium Integration test
Galaxy has many test suites and frameworks. A potentially overwhelming question at first is, where does a given test belong? What testing suite or framework should it be added to? The following questions may be able to help find the right documentation for a given test one wishes to write.
Does this test require a running server and database to execute?
-
No
If no, this test should probably be implemented as a Galaxy unit test. Unit tests generally, and Galaxy ones specifically, are especially useful for complex components that are well architected to be tested in isolation. The best unit tests are unit tests that shield a lot of their potential complexity from their consumers and components that do not have a lot of dependencies - especially on the database or a web server.
Is the component under test a client (ES6) or backend (Python) component?
-
Client/ES6
These tests should be placed in
client/srcdirectly and executed via Vitest. Checkout Frontend/ES6 Unit Tests below for more information. -
Backend/Python
These tests should be placed in
test/unitor doctests and executed via pytest. Checkout Backend/Python Unit Tests below for more information.
-
-
Yes
In this case you're looking at some sort of functional test that requires a running Galaxy server and the Galaxy database. All of these tests are currently implemented in Python.
Does this test require the Galaxy web interface?
-
No
Most of the time, we have found that these tests work best when they use the Galaxy API to drive the test. These tests are all Python tests executed by pytest. The testing frameworks provide everything you need to spin up a Galaxy instance, communicate with its API to invoke the component under test, and write expectations about the outcome of the test. There are three different (but very related) frameworks to do this and the choice between which is appropriate comes down to the following questions.
Does this test require a special configuration of Galaxy?
-
No
Does this test check only functionalities of Galaxy tools or workflows?
-
Yes, tools
In this case you do not actually need to deal with the Galaxy API directly and you can just create a Galaxy tool test to check that the required functionality does work as expected. These are called Galaxy tool framework tests and are located in
test/functional/tools/. Checkout Tool Framework Tests below for more information. -
Yes, workflows
Workflow framework tests verify workflow evaluation by running workflows and checking outputs. These are located in
lib/galaxy_test/workflow/. Checkout Workflow Framework Tests below for more information. -
No
In this case Galaxy API tests are likely the most appropriate way to implement the desired test. These tests are located in
lib/galaxy_test/api. Checkout API Tests below for more information.
-
-
Yes
Tests that require a custom Galaxy with a very specific configuration are called Galaxy integration tests and are located in
test/integration. Checkout Integration Tests below for more information.
-
-
Yes
The tests that exercise the Galaxy user interface and require a functional Galaxy server use browser automation to drive interaction with the Galaxy web interface. These tests can be run with either Selenium or Playwright as the browser driver. Both provide high level access to the Galaxy API like the tests above, and the frameworks take care of starting the Galaxy server.
The choice between different frameworks comes down to the answer to the following question.
Does this test require a special configuration of Galaxy?
-
No
These tests should be placed into
lib/galaxy_test/seleniumand implemented using the Selenium Tests framework described below. These same tests can also be run with Playwright for faster execution. -
Yes
Tests that require both a very specific Galaxy configuration as well as the ability to drive a running Galaxy web interface should be placed into
test/integration_selenium. Checkout the Selenium Integration Tests information below for more information.
-
-
{#python_unit}
Backend/Python Unit Tests
These are Python unit tests either defined inside of test/unit or
via doctests within a Python component. These should generally not require
a Galaxy instance and should quickly test just a component or a few
components of Galaxy's backend code.
doctests to stand-alone tests?
doctests tend to be more brittle and more restrictive. I (@jmchilton) would strongly suggest writing stand-alone unit testing files separate from the code itself unless the tests are so clean and so isolated they serve as high-quality documentation for the component under test.
Slow 'Unit' Tests (External Dependency Management)
Tests in test/unit/tool_util/ that interact with external services
(Conda, container registries, BioContainers) should be marked with
@external_dependency_management. This pytest marker is defined in
test/unit/tool_util/util.py:
from .util import external_dependency_management
@external_dependency_management
def test_conda_install(tmp_path):
# ... test conda operations
These tests are excluded from normal unit test runs. To run them:
tox -e mulled
# or directly:
pytest -m external_dependency_management test/unit/tool_util/
Continuous Integration
The Python unit tests are run against each pull request to Galaxy using
CircleCI. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
CircleCI test definition for these tests is located in .circleci/config.yml
below Galaxy's root.
{#es6_unit}
Frontend/ES6 Unit Tests
Detailed information on writing Galaxy client tests can be found in client/README.md.
Continuous Integration
The client tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
GitHub actions workflow definition for these tests is located in
.github/workflows/client-unit.yaml below Galaxy's root.
{#framework}
Tool Framework Tests
A great deal of the complexity and interface exposed to Galaxy plugin developers comes in the form of Galaxy tool wrapper definition files. Likewise, a lot of the legacy behavior Galaxy needs to maintain is maintained for older tool definitions. For this reason, a lot of Galaxy's complex internals can just be tested by simply running a tool test. Obviously Galaxy is much more complex than this, but a surprising amount of Galaxy's tests are simply tool tests. This suite of tools that have their tests exercised is called the "Tool Framework Tests" or simply "Framework Tests".
Adding a tool test is as simple as finding a related tool in the sample
tools (test/functional/tools) and adding a test block to that file
or adding a new tool to this directory and referencing it in the
sample tool configuration XML (test/functional/tools/sample_tool_conf.xml).
General information on writing Galaxy Tool Tests can be found in Planemo's documentation - for instance in the Test-Driven Development section.
Continuous Integration
The Tool framework tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is fairly stable and typically there are not
transiently failed tests unrelated to the pull request being tested. The
GitHub actions workflow definition for these tests is located in
.github/workflows/framework_tools.yaml below Galaxy's root.
{#workflow_framework}
Workflow Framework Tests
Similar to Tool Framework Tests, Workflow Framework Tests test Galaxy's
workflow evaluation engine by running workflows and verifying outputs.
These tests are located in lib/galaxy_test/workflow.
Each workflow test consists of two files:
- A workflow definition file (
*.gxwf.yml) in Galaxy's Format2 YAML syntax - A test definition file (
*.gxwf-tests.yml) containing test cases
An Example
A simple workflow definition (my_workflow.gxwf.yml):
class: GalaxyWorkflow
inputs:
input_int:
type: int
default: 1
outputs:
out:
outputSource: my_tool/out_file1
steps:
my_tool:
tool_id: some_tool
in:
param1:
source: input_int
And its corresponding test file (my_workflow.gxwf-tests.yml):
- doc: |
Test with default value
job: {}
outputs:
out:
class: File
asserts:
- that: has_text
text: "expected content"
- doc: |
Test with explicit input
job:
input_int: 42
outputs:
out:
class: File
asserts:
- that: has_text
text: "42"
Test cases can use expect_failure: true to verify that certain
inputs correctly cause workflow failures.
Continuous Integration
The Workflow framework tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is fairly stable and typically there are not
transiently failed tests unrelated to the pull request being tested. The
GitHub actions workflow definition for these tests is located in
.github/workflows/framework_workflows.yaml below Galaxy's root.
{#api}
API Tests
These tests are located in lib/galaxy_test/api and test various aspects
of the Galaxy API, as well as general backend aspects of Galaxy using the API.
Test Class Structure
API tests inherit from ApiTestCase which provides the testing
infrastructure:
from galaxy_test.base.populators import DatasetPopulator
from ._framework import ApiTestCase
class TestMyFeatureApi(ApiTestCase):
dataset_populator: DatasetPopulator
def setUp(self):
super().setUp()
self.dataset_populator = DatasetPopulator(self.galaxy_interactor)
def test_something(self):
history_id = self.dataset_populator.new_history()
# ... test code
The ApiTestCase class (in lib/galaxy_test/api/_framework.py) inherits from:
FunctionalTestCase: Handles server configuration and URL setupUsesApiTestCaseMixin: Provides HTTP methods and API interaction utilitiesUsesCeleryTasks: Configures async task handling
HTTP Methods
The base class provides wrapped HTTP methods for API interaction:
# GET request
response = self._get("histories")
# POST with data
response = self._post("histories", data={"name": "Test"})
# PUT, PATCH, DELETE
response = self._put(f"histories/{history_id}", data=payload)
response = self._patch(f"histories/{history_id}", data=updates)
response = self._delete(f"histories/{history_id}")
# Admin operations
response = self._get("users", admin=True)
# Run as different user (requires admin)
response = self._post("histories", data=data,
headers={"run-as": other_user_id}, admin=True)
Populators
Populators are abstractions built on top of the Galaxy API that simplify
creating test data and fixtures. They're specifically designed for testing
use cases and provide a more convenient interface than directly using
requests.
The galaxy_test.base.populators module contains detailed docstrings
describing the concept and implementation of Populators.
DatasetPopulator
The most commonly used populator for creating and managing datasets:
self.dataset_populator = DatasetPopulator(self.galaxy_interactor)
# Create a new history
history_id = self.dataset_populator.new_history("Test History")
# Create a dataset with content
hda = self.dataset_populator.new_dataset(history_id, content="test data", wait=True)
dataset_id = hda["id"]
# Run a tool
result = self.dataset_populator.run_tool(
tool_id="cat1",
inputs={"input1": {"src": "hda", "id": dataset_id}},
history_id=history_id
)
self.dataset_populator.wait_for_tool_run(history_id, result, assert_ok=True)
# Get HDA content - multiple ways to specify which HDA:
# By default, gets the most recent dataset in the history
content = self.dataset_populator.get_history_dataset_content(history_id)
# By history position (hid)
content = self.dataset_populator.get_history_dataset_content(history_id, hid=7)
# By HDA ID (encoded string)
content = self.dataset_populator.get_history_dataset_content(history_id, dataset_id=hda["id"])
# By passing a dataset object (dict) directly
content = self.dataset_populator.get_history_dataset_content(history_id, dataset=hda)
# Additional options:
# - wait=False: don't wait for history jobs to complete first
# - assert_ok=False: don't assert dataset reached 'ok' state
content = self.dataset_populator.get_history_dataset_content(
history_id, hid=7, wait=True, assert_ok=False
)
# Get history content metadata (same option for specifying dataset available as get_history_dataset_content)
dataset_details = self.dataset_populator.get_history_dataset_details(history_id, dataset_id=hda["id"])
collection_details = self.dataset_populator.get_history_collection_details(history_id)
Despite its name, DatasetPopulator has become a central hub for abstractions
covering many Galaxy API operations beyond just datasets - including users, pages,
object stores, and more. When looking for a testing helper, check here first.
Raw Requests vs. Python Dictionaries (The *_raw Pattern)
Many populator methods come in pairs - a convenience method that returns parsed JSON
and a _raw variant that returns the raw Response object:
# Convenience method: asserts success, returns parsed dict
result = self.dataset_populator.run_tool("cat1", inputs, history_id)
# result is a dict with 'jobs', 'outputs', etc.
# Raw method: returns Response for testing edge cases
response = self.dataset_populator.run_tool_raw("cat1", inputs, history_id)
assert_status_code_is(response, 200)
result = response.json()
Use raw methods when testing error responses, status codes, or API edge cases:
# Testing error responses
response = self.workflow_populator.import_workflow_from_path_raw(workflow_path)
self._assert_status_code_is(response, 403)
self._assert_error_code_is(response, error_codes.error_codes_by_name["ADMIN_REQUIRED"])
# Testing permission denied
response = self.library_populator.show_ld_raw(library["id"], dataset["id"])
assert_status_code_is(response, 403)
assert_error_code_is(response, 403002)
# Testing validation errors
response = self.dataset_populator.create_landing_raw(invalid_request, "tool")
assert_status_code_is(response, 400)
assert "Field required" in response.json()["err_msg"]
Use non-raw methods for readable tests focused on functionality rather than API response details.
WorkflowPopulator
For creating and executing workflows:
self.workflow_populator = WorkflowPopulator(self.galaxy_interactor)
# Create a simple workflow
workflow_id = self.workflow_populator.simple_workflow("Test Workflow")
# Upload workflow from YAML
workflow_id = self.workflow_populator.upload_yaml_workflow("""
class: GalaxyWorkflow
inputs:
input1: data
steps:
step1:
tool_id: cat1
in:
input1: input1
""")
DatasetCollectionPopulator
For creating dataset collections (lists, pairs, nested structures):
self.dataset_collection_populator = DatasetCollectionPopulator(self.galaxy_interactor)
# Create a list collection
hdca = self.dataset_collection_populator.create_list_in_history(
history_id,
contents=["data1", "data2", "data3"],
wait=True
)
# Create a paired collection
pair = self.dataset_collection_populator.create_pair_in_history(
history_id,
contents=[("forward", "ACGT"), ("reverse", "TGCA")],
wait=True
)
# Create nested collections (list:paired)
identifiers = self.dataset_collection_populator.nested_collection_identifiers(
history_id, "list:paired"
)
API Test Assertions
The galaxy_test.base.api_asserts module provides assertion helpers:
from galaxy_test.base.api_asserts import (
assert_status_code_is,
assert_status_code_is_ok,
assert_has_keys,
assert_not_has_keys,
assert_error_code_is,
assert_error_message_contains,
assert_object_id_error,
)
# Check HTTP status codes
response = self._get("histories")
assert_status_code_is(response, 200)
assert_status_code_is_ok(response) # Any 2XX
# Check response structure
data = response.json()
assert_has_keys(data[0], "id", "name", "state")
assert_not_has_keys(data[0], "admin_only_field")
# Check Galaxy error codes
error_response = self._post("invalid", data={})
assert_error_code_is(error_response, error_codes.USER_REQUEST_INVALID_PARAMETER)
assert_error_message_contains(error_response, "required field")
# Check invalid object ID handling (accepts 400 or 404)
fake_response = self._get("histories/invalid_id_12345")
assert_object_id_error(fake_response)
The test class also provides wrapper methods: self._assert_status_code_is(),
self._assert_has_keys(), etc.
Test Decorators
Common decorators for conditional test execution (from galaxy_test.base.decorators):
from galaxy_test.base.decorators import (
requires_admin,
requires_new_user,
requires_new_history,
requires_new_library,
)
from galaxy_test.base.populators import skip_without_tool
class TestMyApi(ApiTestCase):
@requires_admin
def test_admin_only_endpoint(self):
# Test runs only with admin user
...
@requires_new_user
def test_fresh_user(self):
# Creates new user for test isolation
...
@requires_new_history
def test_with_clean_history(self):
# Ensures fresh history per test run
...
@skip_without_tool("cat1")
def test_cat_tool(self):
# Skips if cat1 tool not installed
...
Context Managers
User Switching
Test behavior with different users:
def test_permissions(self):
# Create resource as default user
history_id = self.dataset_populator.new_history()
# Test access as different user
with self._different_user("other@example.com"):
response = self._get(f"histories/{history_id}")
self._assert_status_code_is(response, 403)
# Test anonymous access
with self._different_user(anon=True):
response = self._get("histories")
# Verify anonymous behavior
Pytest Fixtures
Modern pytest-style tests can use fixtures from conftest.py:
# Session-scoped (expensive setup, reused)
def test_example(self, galaxy_interactor, dataset_populator):
...
# Request-scoped (fresh per test)
def test_with_history(self, history_id, target_history):
hda = target_history.with_dataset("content").src_dict
...
Key fixtures:
| Fixture | Scope | Purpose |
|---|---|---|
galaxy_interactor |
session | API interaction object |
dataset_populator |
session | Dataset creation helper |
history_id |
function | Fresh history per test |
target_history |
function | Fluent API for test data |
required_tool |
function | Tool fixture from markers |
Async and Job Waiting
Wait for asynchronous operations:
# Wait for history jobs to complete
self.dataset_populator.wait_for_history(history_id, assert_ok=True)
# Wait for specific job
job_id = result["jobs"][0]["id"]
self.dataset_populator.wait_for_job(job_id, assert_ok=True)
# Wait for workflow invocation
self.workflow_populator.wait_for_invocation(workflow_id, invocation_id)
# Wait for async task
self.dataset_populator.wait_on_task(async_response)
Celery Tasks and Async Operations
Galaxy uses Celery for background task processing.
The ApiTestCase base class includes UsesCeleryTasks which automatically
configures Celery for testing. Many Galaxy operations return task responses
that must be awaited.
Tool Requests: Modern tool execution via /api/tool_requests returns
a task that must be awaited:
# Submit tool request (async)
response = self.dataset_populator.tool_request_raw(tool_id, inputs, history_id)
response_json = response.json()
# Extract task info
tool_request_id = response_json["tool_request_id"]
task_result = response_json["task_result"]
# Wait for the Celery task to complete
self.dataset_populator.wait_on_task_object(task_result)
# Wait for the tool request to be submitted
state = self.dataset_populator.wait_on_tool_request(tool_request_id)
assert state # True if submitted successfully
# Get the jobs created by the tool request
jobs = self.galaxy_interactor.jobs_for_tool_request(tool_request_id)
self.dataset_populator.wait_for_jobs(jobs, assert_ok=True)
Short-Term Storage Downloads: Export operations use short-term storage:
# Request a history export
url = f"histories/{history_id}/prepare_store_download"
download_response = self._post(url, {"model_store_format": "tgz"}, json=True)
# Extract storage request ID
storage_request_id = self.dataset_populator.assert_download_request_ok(download_response)
# Wait for the download to be ready
self.dataset_populator.wait_for_download_ready(storage_request_id)
# Fetch the prepared file
content = self._get(f"short_term_storage/{storage_request_id}")
Task ID Waiting: For operations that return just a task ID:
# Import returns a task ID
import_response = self._post("histories", {"archive_source": url})
task_id = import_response.json()["id"]
# Wait for task completion (returns True on SUCCESS, False on FAILURE)
task_ok = self.dataset_populator.wait_on_task_id(task_id)
assert task_ok, "Import task failed"
Useful Example Files
| Pattern | Example File | What It Demonstrates |
|---|---|---|
| Basic API structure | lib/galaxy_test/api/test_roles.py |
Simple GET/POST, admin vs. user |
| Dataset operations | lib/galaxy_test/api/test_datasets.py |
Upload, search, update, delete |
| Tool execution | lib/galaxy_test/api/test_tool_execute.py |
Modern fluent API patterns |
| History import/export | lib/galaxy_test/api/test_histories.py |
Async tasks, short-term storage, reimport patterns |
| User management | lib/galaxy_test/api/test_users.py |
Different user context, permissions |
Continuous Integration
The API tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is fairly stable and typically there are not
transiently failed tests unrelated to the pull request being tested. The
GitHub actions workflow definition for these tests is located in
.github/workflows/api.yaml below Galaxy's root.
{#integration}
Integration Tests
These tests are located in test/integration. These tests have access
to all the same API utilities as API tests described above, but can access
Galaxy internals and may define hooks for configuring Galaxy in certain ways
during startup.
Galaxy integration tests in some ways are more powerful than API tests - they can both control Galaxy's configuration and can access Galaxy's internals. However, this power comes at a real cost - each test case must spin up its own Galaxy server (a relatively expensive operation) and the tests cannot be executed against external Galaxy servers (it wouldn't make sense to, given these custom hooks during configuration of the server). For these reasons, we bundle up Galaxy API tests for use in deployment testing of production setups. Therefore Galaxy API tests are generally preferred, while integration tests should be implemented only when an API test is not possible or practical.
Integration tests can make use of dataset populators and API assertions as described above in the API test documentation. It is worth reviewing that documentation before digging into integration examples.
An Example: test/integration/test_quota.py
This is a really simple example that does some testing with the Quotas API of Galaxy. This API is off by default so it must be enabled for the test. The top of the test file demonstrates both how to create an integration test and how to modify Galaxy's configuration for the test.
#...
from galaxy_test.driver import integration_util
class TestQuotaIntegration(integration_util.IntegrationTestCase):
require_admin_user = True
@classmethod
def handle_galaxy_config_kwds(cls, config):
super().handle_galaxy_config_kwds(config)
config["enable_quotas"] = True
#...
Integration test cases extend the IntegrationTestCase class defined in
the galaxy_test.driver.integration_util module (located in
lib/galaxy_test/driver/integration_util.py).
The require_admin_user option above tell the test framework that the
default user configured for API interactions must be an admin user.
This example overrides Galaxy's configuration using the
handle_galaxy_config_kwds class method. This method is called before
a Galaxy server is created, and is passed the testing server's default
configuration as the config argument to that class method. This
config object is effectively the Python representation of the Galaxy
configuration file (galaxy.yml) used to start the Python server.
Almost anything you can do in galaxy.yml, you can modify the Galaxy
server to do using the same keys. Examples of various ways integration tests
have modified this dictionary include setting up custom object stores
(e.g. objectstore/test_mixed_store_by.py),
setting up non-local job runners (e.g. test_cli_runners.py), setting
up custom job destinations (e.g. test_job_recovery.py), and configuring
Galaxy for tool shed operations (e.g. test_repository_operations.py).
There may be cases where an integration test is used not to allow
some custom configuration of Galaxy but to access Galaxy's internals.
Integration tests have direct access to Galaxy's app object via
self._app and direct access to the database as a result. An example of
such a test is test_workflow_refactoring.py. This test required accessing
the way workflow steps are stored in the database and not just how they are
serialized by the API, so it tests database models directly. Generally
though, this type of usage should be avoided.
API Utilities in Integration Tests
Integration tests have full access to all API testing utilities documented in the API Tests section above. This includes:
- Populators:
DatasetPopulator,WorkflowPopulator,DatasetCollectionPopulator - Assertions:
assert_status_code_is,assert_has_keys,assert_error_code_is - HTTP Methods:
self._get(),self._post(),self._put(), etc. - Context Managers:
self._different_user(),self.dataset_populator.test_history() - Decorators:
@requires_admin,@skip_without_tool
Review that section for details on these utilities.
Class Attributes
Integration test classes support several class attributes that control test setup:
class TestMyFeature(integration_util.IntegrationTestCase):
# Require the default API user to be an admin
require_admin_user = True
# Include Galaxy's sample tools and datatypes (for tool testing)
framework_tool_and_types = True
| Attribute | Default | Purpose |
|---|---|---|
require_admin_user |
False | API user must be admin |
framework_tool_and_types |
False | Include sample tools/datatypes |
Configuration Patterns
Direct Config Options
The simplest pattern sets config values directly:
@classmethod
def handle_galaxy_config_kwds(cls, config):
super().handle_galaxy_config_kwds(config)
config["enable_quotas"] = True
config["metadata_strategy"] = "extended"
config["allow_path_paste"] = True
External Config Files
For complex configurations (job runners, object stores), reference external files:
import os
SCRIPT_DIRECTORY = os.path.dirname(__file__)
JOB_CONFIG_FILE = os.path.join(SCRIPT_DIRECTORY, "my_job_conf.yml")
class TestCustomRunner(integration_util.IntegrationTestCase):
@classmethod
def handle_galaxy_config_kwds(cls, config):
super().handle_galaxy_config_kwds(config)
config["job_config_file"] = JOB_CONFIG_FILE
Common config file options:
job_config_file- Job runner configuration (YAML or XML)object_store_config_file- Object store backendsfile_sources_config_file- Remote file sourcescontainer_resolvers_config_file- Container resolution
Dynamic Config with Templates
For configs requiring runtime values (temp directories, ports), use
string.Template:
import string
OBJECT_STORE_TEMPLATE = string.Template("""
<object_store type="disk">
<files_dir path="${temp_directory}/files"/>
<extra_dir type="temp" path="${temp_directory}/tmp"/>
</object_store>
""")
class TestObjectStore(integration_util.IntegrationTestCase):
@classmethod
def handle_galaxy_config_kwds(cls, config):
super().handle_galaxy_config_kwds(config)
temp_dir = cls._test_driver.mkdtemp()
config_content = OBJECT_STORE_TEMPLATE.safe_substitute(
temp_directory=temp_dir
)
config_path = os.path.join(temp_dir, "object_store_conf.xml")
with open(config_path, "w") as f:
f.write(config_content)
config["object_store_config_file"] = config_path
Inline Dict Config
Job and container configs can also be specified as Python dicts:
@classmethod
def handle_galaxy_config_kwds(cls, config):
super().handle_galaxy_config_kwds(config)
config.pop("job_config_file", None) # Remove file-based config
config["job_config"] = {
"runners": {
"local": {"load": "galaxy.jobs.runners.local:LocalJobRunner"}
},
"execution": {
"default": "local_docker",
"environments": {
"local_docker": {"runner": "local", "docker_enabled": True}
}
}
}
Configuration Mixins
Galaxy provides mixin classes to simplify common configuration patterns. Use multiple inheritance to compose capabilities:
class TestWithObjectStore(
integration_util.ConfiguresObjectStores,
integration_util.IntegrationTestCase
):
@classmethod
def handle_galaxy_config_kwds(cls, config):
cls._configure_object_store(STORE_TEMPLATE, config)
| Mixin | Purpose | Key Methods |
|---|---|---|
ConfiguresObjectStores |
Object store setup | _configure_object_store() |
ConfiguresDatabaseVault |
Encrypted secrets | _configure_database_vault() |
ConfiguresWorkflowScheduling |
Workflow handlers | _configure_workflow_schedulers() |
PosixFileSourceSetup |
File upload sources | Auto-configures in handle_galaxy_config_kwds |
Example with PosixFileSourceSetup:
from galaxy_test.driver.integration_setup import PosixFileSourceSetup
class TestFileUploads(PosixFileSourceSetup, integration_util.IntegrationTestCase):
# PosixFileSourceSetup auto-configures file sources
# Override class attributes to customize:
include_test_data_dir = True
def setUp(self):
super().setUp()
self._write_file_fixtures() # Create test files
Accessing Galaxy Internals
Integration tests can access Galaxy's application object directly via
self._app. This enables testing internal state not exposed via API.
Database Access
from galaxy.model import StoredWorkflow
from sqlalchemy import select
def test_workflow_storage(self):
# Query database directly
stmt = select(StoredWorkflow).order_by(StoredWorkflow.id.desc()).limit(1)
workflow = self._app.model.session.execute(stmt).scalar_one()
# Access workflow internals
assert workflow.latest_workflow.step_count == 3
Application Services
def test_tool_data(self):
# Access tool data tables
table = self._app.tool_data_tables.get("all_fasta")
entries = table.get_entries("dbkey", "hg38", "dbkey")
# Access vault for secrets
from galaxy.security.vault import UserVaultWrapper
user_vault = UserVaultWrapper(self._app.vault, user)
secret = user_vault.read_secret("my_secret")
Temporary Directory
def test_with_temp_files(self):
# Get managed temp directory (cleaned up after test)
temp_dir = self._test_driver.mkdtemp()
# or use self._tempdir property
Skip Decorators
The integration_util module provides decorators for conditional
test execution:
from galaxy_test.driver import integration_util
@integration_util.skip_unless_docker()
def test_docker_feature(self):
...
@integration_util.skip_unless_kubernetes()
def test_k8s_feature(self):
...
@integration_util.skip_unless_postgres()
def test_postgres_only(self):
...
@integration_util.skip_unless_amqp()
def test_with_message_queue(self):
...
| Decorator | Skips Unless |
|---|---|
skip_unless_docker() |
Docker available |
skip_unless_kubernetes() |
kubectl configured |
skip_unless_postgres() |
Using PostgreSQL |
skip_unless_amqp() |
AMQP URL configured |
skip_if_github_workflow() |
Not in GitHub Actions |
skip_unless_environ(var) |
Environment variable set |
External Services
Some integration tests require external services (databases, message queues, storage backends). These are either provided by CI infrastructure or started as Docker containers by the tests themselves.
CI-Provided Services
The integration test GitHub workflow (.github/workflows/integration.yaml)
starts a Kubernetes pod with shared services:
| Service | Image | Port | Environment Variable |
|---|---|---|---|
| PostgreSQL | postgres:17 |
5432 | GALAXY_TEST_DBURI |
| RabbitMQ | rabbitmq |
5672 | GALAXY_TEST_AMQP_URL |
Tests requiring these services use skip decorators:
@integration_util.skip_unless_postgres()
def test_postgres_feature(self):
...
@integration_util.skip_unless_amqp()
def test_celery_feature(self):
...
Docker Containers Started by Tests
Some tests start their own Docker containers in setUpClass and clean
them up in tearDownClass. These require Docker to be available.
Pattern for Docker-based tests:
@integration_util.skip_unless_docker()
class TestWithExternalService(integration_util.IntegrationTestCase):
container_name: ClassVar[str]
@classmethod
def setUpClass(cls):
cls.container_name = f"{cls.__name__}_container"
# Start container
subprocess.check_call([
"docker", "run", "-d", "--rm",
"--name", cls.container_name,
"-p", "9000:9000",
"minio/minio:latest", "server", "/data"
])
super().setUpClass()
@classmethod
def tearDownClass(cls):
subprocess.check_call(["docker", "rm", "-f", cls.container_name])
super().tearDownClass()
Containers used in tests:
| Image | Purpose | Test Files |
|---|---|---|
minio/minio:latest |
S3-compatible storage | objectstore/ tests |
keycloak/keycloak:26.2 |
OIDC authentication | oidc/test_auth_oidc.py |
mvdbeek/galaxy-integration-docker-images:slurm-22.01 |
Slurm scheduler | test_cli_runners.py |
mvdbeek/galaxy-integration-docker-images:openpbs-22.01 |
PBS scheduler | test_cli_runners.py |
savannah.ornl.gov/ndip/public-docker/rucio:1.29.8 |
Rucio data management | objectstore/ tests |
onedata/onezone:21.02.5-dev |
Onedata storage | objectstore/ tests |
Environment variables for external services:
Object store tests use environment variables for connection details:
OBJECT_STORE_HOST = os.environ.get("GALAXY_INTEGRATION_OBJECT_STORE_HOST", "127.0.0.1")
OBJECT_STORE_PORT = int(os.environ.get("GALAXY_INTEGRATION_OBJECT_STORE_PORT", 9000))
OBJECT_STORE_ACCESS_KEY = os.environ.get("GALAXY_INTEGRATION_OBJECT_STORE_ACCESS_KEY", "minioadmin")
OBJECT_STORE_SECRET_KEY = os.environ.get("GALAXY_INTEGRATION_OBJECT_STORE_SECRET_KEY", "minioadmin")
Kubernetes and Container Runtimes
The CI also sets up:
- Minikube - For
test_kubernetes_runner.py - Apptainer/Singularity - Alternative container runtime for job tests
Tests skip appropriately when these aren't available:
@integration_util.skip_unless_kubernetes()
def test_k8s_job(self):
...
Useful Example Files
| Pattern | Example File | What It Demonstrates |
|---|---|---|
| Simple config | test/integration/test_quota.py |
Basic handle_galaxy_config_kwds |
| Job runners | test/integration/test_job_environments.py |
Job config, environment variables |
| Object stores | test/integration/objectstore/ |
Storage backends, S3/MinIO |
| Workflows | test/integration/test_workflow_tasks.py |
Celery, export/import |
| Database access | test/integration/test_workflow_refactoring.py |
SQLAlchemy ORM queries |
| Containers | test/integration/test_containerized_jobs.py |
Docker/Singularity jobs |
| File sources | test/integration/test_remote_files.py |
Remote file handling |
| CLI runners | test/integration/test_cli_runners.py |
SSH/Slurm/PBS with Docker |
| OIDC auth | test/integration/oidc/test_auth_oidc.py |
Keycloak integration |
Continuous Integration
The Integration tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
GitHub actions workflow definition for these tests is located in
.github/workflows/integration.yaml below Galaxy's root.
{#selenium}
Selenium Tests
These are full stack tests meant to test the Galaxy UI with real
browsers and are located in lib/galaxy_test/selenium.
For detailed documentation on the browser automation framework architecture (including protocol design, adding new browser operations, and building CLI tools), see the Browser Automation README.
Jupyter + Selenium
Jupyter can leveraged to develop Selenium test cases interactively,
checkout out the galaxy_test.selenium.jupyter documentation
for more a full discussion of this.
API Abstractions Available
Selenium tests inherit all API test infrastructure. SeleniumTestCase includes
dataset_populator, dataset_collection_populator, and workflow_populator
just like API integration tests:
class TestMyFeature(SeleniumTestCase):
@selenium_test
@managed_history
def test_something(self):
# API-based setup (fast, reliable)
self.dataset_populator.new_dataset(self.history_id, content="test data")
self.workflow_populator.upload_yaml_workflow(WORKFLOW_YAML)
# UI interactions (what we're actually testing)
self.components.history_panel.item(hid=1).wait_for_visible()
When to Use UI vs API Methods
Use API/populator methods for test setup and auxiliary operations. They're faster, more reliable, and won't introduce false failures from unrelated UI bugs.
Use UI methods when the UI interaction is what you're testing.
| Scenario | Use | Method |
|---|---|---|
| Testing upload form | UI | self.perform_upload() |
| Need dataset for other test | API | self.dataset_populator.new_dataset() |
| Testing workflow editor | UI | self.workflow_run_open_workflow() |
| Need workflow for invocation test | API | self.workflow_populator.run_workflow() |
| Testing history panel display | UI | self.history_panel_click_item_title() |
| Need history with 10 datasets | API | loop with new_dataset() |
Example - testing dataset details panel (not upload):
@selenium_test
@managed_history
def test_dataset_details_shows_metadata(self):
# Setup via API - we're not testing uploads
self.dataset_populator.new_dataset(
self.history_id,
content="chr1\t100\t200\ntest",
file_type="bed",
)
# UI interaction - this IS what we're testing
self.history_panel_wait_for_hid_ok(1)
self.history_panel_click_item_title(hid=1)
self.assert_item_dbkey_displayed_as(1, "?")
Test Class Structure
Selenium tests inherit from SeleniumTestCase which combines browser automation
with Galaxy API access:
from .framework import (
managed_history,
selenium_test,
SeleniumTestCase,
UsesHistoryItemAssertions,
)
class TestMyFeature(SeleniumTestCase, UsesHistoryItemAssertions):
ensure_registered = True # Auto-login before each test
@selenium_test
@managed_history
def test_something(self):
self.perform_upload(self.get_filename("1.sam"))
self.history_panel_wait_for_hid_ok(1)
self.assert_item_summary_includes(1, "28 lines")
Class Attributes
| Attribute | Purpose |
|---|---|
ensure_registered |
Auto-login before each test (uses GALAXY_TEST_SELENIUM_USER_EMAIL/PASSWORD or registers new user) |
run_as_admin |
Login as admin user instead |
Test Decorators
| Decorator | Purpose |
|---|---|
@selenium_test |
Required wrapper - handles debug dumps on failure, retries (GALAXY_TEST_SELENIUM_RETRIES), baseline accessibility checks |
@managed_history |
Creates isolated named history per test, auto-cleanup after |
@selenium_only(reason) |
Skip test if running with Playwright backend |
@playwright_only(reason) |
Skip test if running with Selenium backend |
setup_with_driver()
Override this method for per-test setup that runs after driver initialization. Gets re-executed on test retries and errors are automatically dumped for debugging:
def setup_with_driver(self):
super().setup_with_driver()
self.perform_upload(self.get_filename("fixture.fasta"))
self.wait_for_history()
Smart Component System
Access UI elements through self.components, a hierarchical tree that mirrors
Galaxy's UI structure. Components are defined in
client/src/utils/navigation/navigation.yml and wrapped at runtime with
driver-aware methods via the SmartComponent and SmartTarget classes
(in lib/galaxy/selenium/smart_components.py).
# Access nested components via attribute chain
editor = self.components.workflow_editor
save_button = editor.save_button
# SmartTarget methods automatically wait and interact
save_button.wait_for_visible() # Wait for visibility, return element
save_button.wait_for_and_click() # Wait then click
save_button.assert_disabled() # Verify disabled state
# Parameterized selectors
invocations = self.components.invocations
invocations.export_destination(destination="download").wait_for_and_click()
invocations.step_title(order_index="1").wait_for_visible()
Key SmartTarget methods:
| Method | Purpose |
|---|---|
wait_for_visible() |
Wait for visibility, return WebElement |
wait_for_and_click() |
Wait for visibility then click |
wait_for_text() |
Wait for visibility, return .text |
wait_for_value() |
Wait for visibility, return input value |
wait_for_absent_or_hidden() |
Wait for element to disappear |
assert_absent_or_hidden() |
Fail if element visible |
assert_disabled() |
Verify disabled state |
all() |
Return list of all matching elements |
For extending the component system or adding new operations, see the Browser Automation README.
History and Workflow Operations
The test framework provides specialized methods for common Galaxy operations:
File Uploads:
# Single file upload
self.perform_upload(self.get_filename("1.sam"))
self.perform_upload(self.get_filename("1.sam"), ext="txt", genome="hg18")
# Pasted content or URL
self.perform_upload_of_pasted_content("test data content")
# Collection uploads
self.upload_list([self.get_filename("1.tabular")], name="My List")
History Panel:
self.history_panel_wait_for_hid_ok(1) # Wait for job completion
self.history_panel_click_item_title(hid=1, wait=True) # Expand item
self.wait_for_history() # Wait for all jobs
Workflow Execution (via RunsWorkflows mixin):
class TestWorkflows(SeleniumTestCase, RunsWorkflows):
@managed_history
def test_workflow(self):
self.perform_upload(self.get_filename("input.fasta"))
self.wait_for_history()
self.workflow_run_open_workflow(WORKFLOW_YAML)
self.workflow_run_submit()
self.workflow_run_wait_for_ok(hid=2, expand=True)
Assertion Mixins:
# UsesHistoryItemAssertions
self.assert_item_summary_includes(hid, "expected text")
self.assert_item_name(hid, "expected_name")
self.assert_item_dbkey_displayed_as(hid, "hg18")
# UsesWorkflowAssertions
self._assert_showing_n_workflows(n)
Accessibility Testing
The @selenium_test decorator automatically runs baseline accessibility
assertions after each test using axe-core.
Tests can also perform component-level accessibility checks:
# Component-level assertion with impact threshold
login = self.components.login
login.form.assert_no_axe_violations_with_impact_of_at_least("moderate")
# With known violations excluded
VIOLATION_EXCEPTIONS = ["heading-order", "label"]
self.components.history_panel._.assert_no_axe_violations_with_impact_of_at_least(
"moderate", VIOLATION_EXCEPTIONS
)
Impact levels: "minor", "moderate", "serious", "critical"
For more on axe-core rules and impact levels, see the axe-core documentation.
Shared State Tests
For tests with expensive one-time setup (multiple users, published resources),
use SharedStateSeleniumTestCase. The setup_shared_state() method runs
once per class, and state persists across all test methods:
from .framework import selenium_test, SharedStateSeleniumTestCase
class TestPublishedPages(SharedStateSeleniumTestCase):
@selenium_test
def test_index(self):
self.navigate_to_pages()
assert len(self.get_grid_entry_names("#pages-published-grid")) == 2
def setup_shared_state(self):
# Called once before first test in class
self.user1_email = self._get_random_email("test1")
self.register(self.user1_email)
self.new_public_page()
self.logout_if_needed()
self.user2_email = self._get_random_email("test2")
self.register(self.user2_email)
self.new_public_page()
Useful Example Files
| Pattern | Example File | What It Demonstrates |
|---|---|---|
| Basic structure | lib/galaxy_test/selenium/test_login.py |
Simple tests, accessibility |
| History operations | lib/galaxy_test/selenium/test_uploads.py |
Uploads, history panel |
| Workflow execution | lib/galaxy_test/selenium/test_workflow_run.py |
RunsWorkflows mixin |
| Component patterns | lib/galaxy_test/selenium/test_workflow_editor.py |
Smart components |
| Shared state | lib/galaxy_test/selenium/test_published_pages.py |
SharedStateSeleniumTestCase |
| Admin tests | lib/galaxy_test/selenium/test_admin_app.py |
run_as_admin, admin UI |
Configuration File
Both Selenium and Playwright tests can load configuration from a YAML file
using the GALAXY_TEST_END_TO_END_CONFIG environment variable. This is
useful for running tests against a running Galaxy server without hardcoding
credentials.
Copy and edit the sample config:
cp lib/galaxy_test/selenium/jupyter/galaxy_selenium_context.yml.sample ./galaxy_selenium_context.yml
Example config file:
local_galaxy_url: http://localhost:8080
login_email: test_user@example.com
login_password: mycoolpassw0rd
# For remote Selenium (e.g., Docker):
#selenium_galaxy_url: http://host.docker.internal:8080
# For admin operations:
#admin_api_key: your_api_key
#admin_email: admin@example.com
#admin_password: admin_password
Config keys map to environment variables:
| Config Key | Environment Variable |
|---|---|
local_galaxy_url |
GALAXY_TEST_SELENIUM_URL |
login_email |
GALAXY_TEST_SELENIUM_USER_EMAIL |
login_password |
GALAXY_TEST_SELENIUM_USER_PASSWORD |
admin_api_key |
GALAXY_TEST_SELENIUM_ADMIN_API_KEY |
selenium_galaxy_url |
GALAXY_TEST_EXTERNAL_FROM_SELENIUM |
Usage:
GALAXY_TEST_END_TO_END_CONFIG=./galaxy_selenium_context.yml ./run_tests.sh -selenium
Continuous Integration
The Selenium tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
GitHub actions workflow definition for these tests is located in
.github/workflows/selenium.yaml below Galaxy's root.
{#playwright}
Playwright Tests
Playwright tests use the same test files as Selenium tests
(located in lib/galaxy_test/selenium) but execute them using
Playwright instead of Selenium WebDriver.
Playwright offers faster execution and more reliable browser automation.
Running Playwright Tests
Run all Playwright tests:
./run_tests.sh -playwright
Run specific Playwright tests:
./run_tests.sh -playwright lib/galaxy_test/selenium/test_workflow_editor.py
Run against a running Galaxy server (fastest for development):
./run.sh & # run Galaxy on 8080
make client-dev-server & # watch for client changes
export GALAXY_TEST_EXTERNAL=http://localhost:8081/
. .venv/bin/activate
GALAXY_TEST_DRIVER_BACKEND=playwright pytest lib/galaxy_test/selenium/test_login.py
Playwright requires browser installation:
playwright install chromium
Continuous Integration
The Playwright tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
GitHub actions workflow definition for these tests is located in
.github/workflows/playwright.yaml below Galaxy's root.
{#selenium_integration}
Selenium Integration Tests
These tests are located in test/integration_selenium and simply
combine the capabilities of Selenium tests and Integration tests
(both described above) into test cases that can do both. There
are no new capabilities or gotchas of this test suite beyond
what is described above in these sections.
A quintessential example is test/integration_selenium/test_upload_ftp.py.
Testing the FTP capabilities of the user interface requires both
Selenium to drive the test case and a custom Galaxy configuration
that mocks out an FTP directory and points the Galaxy server at it
with various options (ftp_upload_dir, ftp_upload_site).
Continuous Integration
The Selenium integration tests are run against each pull request to Galaxy using
GitHub actions. If any of these tests fail, the pull request will be marked
red. This test suite is moderately prone to having tests fail that are
unrelated to the pull request being tested; if this test suite fails on
a pull request with changes that seem to be unrelated to the pull request -
ping the Galaxy committers on the pull request and request a re-run. The
GitHub actions workflow definition for these tests is located in
.github/workflows/integration_selenium.yaml below Galaxy's root.
{#avoiding_external_dependencies}
Avoiding External Dependencies in Tests
Tests fetching from external services (GitHub, etc.) fail transiently due to
network issues or rate limiting. Use DatasetPopulator's base64 URL helpers
to encode local test data as base64:// URLs instead — Galaxy's fetch API
handles these identically to remote URLs.
| Helper | Use Case |
|---|---|
base64_url_for_test_file(filename) |
Encode a file from test-data/ |
base64_url_for_string(content) |
Encode a string literal |
base64_url_for_bytes(content) |
Encode raw bytes |
# Instead of: "location": "https://github.com/.../1.fasta.gz?raw=true"
base64_url = self.dataset_populator.base64_url_for_test_file("1.fasta.gz")
job = {"input1": {"class": "File", "format": "fasta", "location": base64_url, "decompress": True}}
These work anywhere a URL is accepted: stage_inputs jobs, fetch API targets,
deferred datasets, and workflow inputs. Only use real external URLs when the test
specifically validates remote-fetch behavior.
{#transient_failures}
Handling Flaky Tests
Some tests fail intermittently due to race conditions, timing issues, or external dependencies. Galaxy provides infrastructure to track these "flaky" tests via GitHub issues and a test decorator.
Marking a Test as Transiently Failing
When a test is identified as flaky, create a GitHub issue with the
transient-test-error label, then mark the test with the @transient_failure
decorator:
from galaxy.util.unittest_utils import transient_failure
@transient_failure(issue=21224)
@selenium_test
def test_sharing_private_history(self):
# Test that sometimes fails due to race condition
...
When the test fails, the error message is modified to indicate this is a known transient failure linked to a specific issue, helping CI reviewers quickly identify non-blocking failures.
Tracking Potential Fixes
When you implement a potential fix for a transient failure, update the decorator
with potentially_fixed=True:
@transient_failure(issue=21242, potentially_fixed=True)
def test_delete_job_with_message(self, history_id):
...
If the test fails after this flag is set, the error message will ask reviewers to report the failure on the tracking issue with a timestamp. This helps determine if fixes are effective and when issues can be closed.
Workflow
- Test fails intermittently in CI
- Create GitHub issue with
transient-test-errorlabel - Add
@transient_failure(issue=XXXXX)to the test - When a fix is implemented, add
potentially_fixed=True - If no failures are reported for ~1 month, close the issue and remove the decorator
Legacy @flakey Decorator
The older @flakey decorator from galaxy_test.base.populators is still
present in some tests. Unlike @transient_failure, it doesn't link to tracking
issues. When running with --skip_flakey_fails, failures are converted to skips.
New flaky tests should use @transient_failure instead for better tracking.
{#running_tests}
Running Python Tests
The best information about how to run Galaxy's Python tests can be
found in the help output of run_tests.sh --help.
:literal: