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Running tests for Quarto

The tests/ folder is the place for everything related to testing of quarto-cli.

We run several type of tests

  • Unit tests, located in unit/ folder
  • Integration tests, located in integration/ folder
  • smoke tests localed in smoke folder

Tests are run in our CI workflow on GHA at each commit, and for each PR.

How the tests are created and organized ?

Tests are running through Deno.test() framework, adapted for our Quarto project and all written in Typescript. Infrastructure are in tests.ts, tests.deps.ts verify.ts and utils.ts which contains the helper functions that can be used.

  • unit/ and integration/, smoke/contain some .ts script representing each tests.
  • docs/ is a special folder containing of the necessary files and projects used for the tests.

Running the tests locally

Dependencies requirements

Here are what is expected in the environment for the tests :

  • R should be installed and in PATH - rig is a good tool to manage R versions. e.g rig install 4.4.2 and rig default 4.4.2 to install and set the version to 4.4.2
    • On Windows, Rtools should be too (for source package installation)
  • Python should be installed and in PATH - pyenv is a good option to manage Python versions.
  • Julia should be installed and in PATH - juliaup is a good option to manage Julia versions.
    • On Windows, one way is using winget install julia -s msstore and then add %LOCALAPPDATA%/Programs/Julia/bin to PATH

Running tests require to have a local environment setup with Quarto development, TinyTeX, R, Python and Julia.

To help with this configuration, the tests/ folder contains configure-test-env.sh and configure-test-env.ps1. It will check for the tools and update the dependencies to what is used by Quarto tests. Running the script at least one will insure you are correctly setup. Then, it is run as part of running the tests so that dependencies are always updated. Set QUARTO_TESTS_NO_CONFIG to skip this step when running tests.

Dependencies are managed using the following tools:

R

We use renv. renv.lock and renv/ folders are the files used to recreate the environment for R.

Updating renv.lock is done using renv::snapshot(). File shouldn't be modified manually.

Our project is using explicit dependencies discovery through a DESCRIPTION file. This is to avoid a costly scanning of all files in tests/ to guess R dependencies. This means that if you need to add a test with a new R package dependencies:

  • Add package(s) to DESCRIPTION in tests/
  • renv::install() the package into the project library
  • Finish to work on your test
  • renv::snapshot() to record the new dependency in the renv.lock
  • Commit the new DESCRIPTION and renv.lock

See documentation if you need to tweak the R environment.

After a dependency update, you can run configure-test-env.sh or configure-test-env.ps1 to update the environment, or manually run renv::restore() to recreate the environment with new versions. Be sure to update your R version if needed.

Python

We now use uv (previously, it was pipenv) to manage dependencies and recreate easily on all OS. uv will not be installed as part of the configuration - so it needs to be installed manually - see various way at: https://docs.astral.sh/uv/getting-started/installation/

uv will handle the python versions, including its installation, based on the .python-version we have in tests/ folder. It will also manage the virtual environment in .venv folder.

A virtual environment will be created locally in .venv folder (ignored on git) and activated when running tests. uv run can help activating the environment outside of running tests to run a command in the environment.

pyproject.toml contains our dependencies requirement for the tests project. It can be manually updated but it is best to just use uv commands. For instance, adding a new dependency can be done with uv add plotly and it will update the file, update the uv.lock and install in the virtual environment. uv.lock should never be updated manually, and it is tracked by git, as it allows to recreate the exact environment on different environment (Linux, Mac, Windows, locally and on CI).

See other uv command if you need to do more.

For a change of python versionn, .python-version needs to be updated, and then uv will take care of the rest. configure-test-env script will check for uv and if installed, it will called uv sync to make sure the project virtual environment is up to date with the lockfile.

Note that ./run-test.ps1 and .run-tests.sh :

  • run configure-test-env script by default, unless QUARTO_TESTS_NO_CONFIG environment variable is set to a non-empty value.
  • Activate the local virtualenv espected in .venv. Set QUARTO_TESTS_FORCE_NO_VENV to a non-empty value to prevent this behavior. (It replaces QUARTO_TESTS_FORCE_NO_PIPENV which still is considered for backward compatibility but deprecated)

Julia

Julia uses built-in package manager Pkg.jl- we provide Project.toml and Manifest.toml to recreate the environment.

Project.toml contains our direct dependency and Manifest.toml is the lock file that will be created (Pkg.resolve()).

See documentation on how to add, remove, update if you need to tweak the Julia environment.

How to run tests locally ?

Tests are run using run-tests.sh on UNIX, and run-tests.ps1 on Windows.

# run all tests
./run-tests.sh

# run a specific tests file
./run-tests.sh smoke/extensions/extension-render-doc.test.ts
# run all tests
./run-tests.ps1

# run a specific tests file
./run-tests.ps1 smoke/extensions/extension-render-doc.test.ts

Prevent configuration for dependencies (R, Julia, Python, ...)

Those files will run configure-test-env scripts to check for requirements and set up dependencies (except on Github Action as this is done in the workflow file directly). You can prevent test configuration locally by setting QUARTO_TESTS_NO_CONFIG environment variable to a non-empty value.

QUARTO_TESTS_NO_CONFIG="true" ./run-tests.sh
$env:QUARTO_TESTS_NO_CONFIG=$true
./run-tests.ps1

About smoke-all tests

docs/smoke-all/ is a specific folder to run some tests written directly within .qmd, .md or .ipynb files (but files starting with _ will be ignored). They are run through the smoke/smoke-all.tests.ts script. To ease running smoke-all tests, run-tests.sh has a special behavior where it will run ./smoke/smoke-all.tests.ts when passed a .qmd, .md or .ipynb file, not starting with _.

# run tests for all documents in docs/smoke-all/
./run-tests.sh smoke/smoke-all.tests.ts

# run tests for some `.qmd` document in a specific place (using glob)
./run-tests.sh docs/smoke-all/2022/**/*.qmd
# or using longer version
./run-tests.sh smoke/smoke-all.test.ts -- docs/smoke-all/2022/**/*.qmd

# run test for a specific document
./run-tests.sh docs/smoke-all/2023/01/04/issue-3847.qmd
# or using using longer version
./run-tests.sh smoke/smoke-all.test.ts -- docs/smoke-all/2023/01/04/issue-3847.qmd
Examples of tests output after it ran
$ ./run-tests.sh smoke/smoke-all.test.ts -- docs/smoke-all/2023/01/04/issue-3847.qmd
> Checking and configuring environment for tests
>>>> Configuring R environment
* The library is already synchronized with the lockfile.
>>>> Configuring Python environment
Setting up python environnement with pipenv
Installing dependencies from Pipfile.lock (0ded54)...
To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.
>>>> Configuring Julia environment
Setting up Julia environment
    Building Conda ─→ `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/e32a90da027ca45d84678b826fffd3110bb3fc90/build.log`
    Building IJulia → `~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/59e19713542dd9dd02f31d59edbada69530d6a14/build.log`
>>>> Configuring TinyTeX environment
Setting GH_TOKEN env var for Github Download.
tinytex is already installed and up to date.
> Activating virtualenv for Python tests
Check file:///home/cderv/project/quarto-cli/tests/smoke/smoke-all.test.ts
running 1 test from ./smoke/smoke-all.test.ts
[smoke] > quarto render docs/smoke-all/2023/01/04/issue-3847.qmd --to html ...
------- output -------
[verify] > No Errors or Warnings
----- output end -----
[smoke] > quarto render docs/smoke-all/2023/01/04/issue-3847.qmd --to html ... ok (320ms)

ok | 1 passed | 0 failed (1s)

> Exiting virtualenv activated for tests
# run tests for all documents in docs/smoke-all/
./run-tests.ps1 smoke/smoke-all.tests.ts

# run tests for some `.qmd` document in a specific place (using glob)
./run-tests.ps1 docs/smoke-all/2022/**/*.qmd
# Or using longer version
./run-tests.ps1 smoke/smoke-all.test.ts -- docs/smoke-all/2022/**/*.qmd

# run test for a specific document
./run-tests.ps1 docs/smoke-all/2023/01/04/issue-3847.qmd
# Or using longer version
./run-tests.ps1 smoke/smoke-all.test.ts -- docs/smoke-all/2023/01/04/issue-3847.qmd
Examples of tests output after it ran
 ./run-tests.ps1 smoke/smoke-all.test.ts -- docs/smoke-all/2023/01/04/issue-3847.qmd
> Setting all the paths required...
> Checking and configuring environment for tests
>>>> Configuring R environment
* The library is already synchronized with the lockfile.
>>>> Configuring python environment
Setting up python environnement with pipenv
Installing dependencies from Pipfile.lock (0ded54)...
To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.
>>>> Configuring Julia environment
Setting up Julia environment
    Building Conda ─→ `C:\Users\chris\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\e32a90da027ca45d84678b826fffd3110bb3fc90\build.log`
    Building IJulia → `C:\Users\chris\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\59e19713542dd9dd02f31d59edbada69530d6a14\build.log`
>>>> Configuring TinyTeX environment
tinytex is already installed and up to date.
> Preparing running tests...
> Activating virtualenv for Python tests
> Running tests with "C:\Users\chris\Documents\DEV_R\quarto-cli\package\dist\bin\tools\deno.exe test --config test-conf.json --unstable-ffi --allow-read --allow-write --allow-run --allow-env --allow-net --check --importmap=C:\Users\chris\Documents\DEV_R\quarto-cli\src\dev_import_map.json smoke/smoke-all.test.ts -- docs/smoke-all/2023/01/04/issue-3847.qmd"
running 1 test from ./smoke/smoke-all.test.ts
[smoke] > quarto render docs\smoke-all\2023\01\04\issue-3847.qmd --to html ...
------- output -------
[verify] > No Errors or Warnings
----- output end -----
[smoke] > quarto render docs\smoke-all\2023\01\04\issue-3847.qmd --to html ... ok (650ms)

ok | 1 passed | 0 failed (2s)

Limitations

  • smoke-all.test.ts accept only one argument. You need to use glob pattern to run several smoke-all test documents.

  • Individual smoke-all tests and other test can't be run at the same time with run-test.[sh|ps1]. This is because smoke-all.test.ts requires arguments. If a smoke-all document and another smoke-test are passed as argument, the smoke-all test will be prioritize and other will be ignored (with a warning).

Example with Linux:

You can do

# run all smoke-all tests and another smoke test
./run-tests.sh smoke/extensions/extension-render-doc.test.ts smoke/smoke-all.test.ts
# run tests for some `.qmd` document in a specific place (using glob)
./run-tests.sh docs/smoke-all/2022/**/*.qmd

Don't do

# run .qmd smoke-all test and another smoke test - smoke-all test will have the priority and other will be ignored (with a warning)
./run-test.sh smoke/extensions/extension-render-doc.test.ts ./docs/smoke-all/2023/01/04/issue-3847.qmd
# run smoke-all.test.ts with argument and another smoke test
./run-tests.sh smoke/extensions/extension-render-doc.test.ts smoke/smoke-all.test.ts -- ./docs/smoke-all/2023/01/04/issue-3847.qmd

Debugging within tests

.vscode/launch.json has a Run Quarto test configuration that can be used to debug when running tests. One need to modify the program and args fields to match the test to run.

Example:

"program": "smoke/smoke-all.test.ts", // test script here
"args": ["--", "tests/docs/smoke-all/2023/01/04/issue-3847.qmd"], // args to the script here, like in command line smoke/smoke-all.test.t -- .\docs\smoke-all\2023\01\19\2107.qmd

Short version can't be use here as we are calling deno test directly and not run-tests.sh script.

Parallel testing

Linux only

This lives in run-parallel-tests.ts and called through run-parallel-tests.sh.

How does is works ?

  • It requires a text file with tested timed and following a specific format. (Default is timing.txt and here is an example in our repo)
  • Based on this file, the tests will be split in buckets to minimize the tests time (buckets are filled by their minimum overall time).
  • Then ./run-tests.sh will be run for each bucket from deno using Promise.all() and run-tests.sh on the whole bucket's test files, so that the buckets are ran in parallel.

This is a simple way to run all the tests or a subset of tests in parallel locally.

About timed tests

To create a timed test file like timing.txt, this command needs to be run.

QUARTO_TEST_TIMING='timing.txt' ./run-tests.sh

When this is done, any other argument will be ignored, and the following happens

  • All the *.test.ts file are found and run individually using /usr/bin/time to store timing in the file
  • When smoke-all.test.ts is found, all the *.qmd, *.md and *.ipynb in docs/smoke-all/ not starting with _ are found and run individually using same logic. This means each smoke-all test is timed.

The results is written in the $QUARTO_TEST_TIMING file. Here is an example:

./smoke/directives/include-fixups.test.ts
        0.02 real 0.02 user 0.00 sys
./smoke/filters/filters.test.ts
        3.26 real 3.79 user 0.47 sys
./smoke/filters/editor-support.test.ts
        0.72 real 0.58 user 0.14 sys
./smoke/engine/include-engine-detection.test.ts
        3.61 real 3.11 user 0.24 sys
./smoke/smoke-all.test.ts -- docs/smoke-all/2022/12/12/code-annotation.qmd
        4.81 real 4.32 user 0.33 sys
./smoke/smoke-all.test.ts -- docs/smoke-all/2022/12/9/jats/computations.out.ipynb
        2.22 real 2.83 user 0.27 sys

This will be read by run-parallel-tests.ts to get the real value and fill the bucket based on it.

Specific behavior for smoke-all.test.ts

smoke-all tests are special because they are in the form of individual .qmd or .ipynb document that needs to be run using smoke-all.test.ts script, with arguments. Unfortunately, this prevent running individual smoke-all documents in same buclets as other individual smoke test (which are their own .test.ts file).

So, if the timed file contains some individual timing for smoke-all documents like this

./smoke/smoke-all.test.ts -- docs/smoke-all/2022/12/12/code-annotation.qmd

then they are ignored and .smoke-all.test.ts will be run in its own bucket. It will usually be the longest test run.

Individual smoke-all tests timing are useful for Quarto parallelized smoke tests on GHA CI as the buckets are split into their own runners and each test in a bucket if run using run-test.sh. This allows a bucket to contains some *.test.ts but also some document *.qmd or *.ipynb. More details in test-smoke.yml and test-smokes-parallel.yml

Arguments that control behavior

  • -n=: Number of buckets to create to run in parallel. run-parallel-tests.sh -n=5 split tests in 5 buckets and run them at the same time. For local run, n should be a number of core. For CI run, n will be the number of runners to use at the same time (mulplied by 2 because Linux and Windows are ran on CI).
  • --verbose: show some verbosity. Otherwise, no specific logging in console in done.
  • --dry-run: show the buckets of tests, but do not run. Otherwise, they are run.
  • --timing-file=: Which file to use as timed tests information to creates the buckets. (default to timing.txt ). run-parallel-tests.sh --timing-file='timing2.txt' will use timing2.txt to run the file.
  • --json-for-ci: Special flag to trigger splitting tests in buckets for the parallel run on CI and that makes run-parallel-tests.sh outputs JSON string specifically formatted for GHA processing.

About tests in CI with GHA

  • test-smokes-parallel.yml will be triggered to load timing-for-ci.txt and split tests in buckets. It will create a matrix to trigger test-smokes.yml on workflow_call event for each bucket.
    • PR against main and commits to main will trigger this workflow, and tests will be ran in parallel jobs.
    • A workflow_dispatch event can be used to trigger it through API call, gh CLI tool or GHA GUI online.
  • test-smokes.yml is the main CI workflow which configure the environment, and run the tests on Ubuntu and Windows.
    • If it was triggerred by workflow_call, then it will run each test in using run-tests.[sh|ps1] in a for-loop.
    • Scheduled tests are still run daily in their sequential version.