Add workflow_test Pixi task for full local workflow/config matrix validation

[Copilot]

This adds a local Pixi task to execute the full workflow/config matrix plus tests in one command, so contributors can quickly verify compatibility across all supported temporal and regional scalings.

• Pixi task: full sequential workflow check

  • Added workflow_test under [tasks] in pixi.toml.
  • The task runs all required workflow CLI invocations in strict sequence, then runs the test suite command.

• Coverage of required config combinations

  • config.country-timeseries.yaml
  • config.country-year.yaml
  • config.region-timeseries.yaml
  • config.region-year.yaml
  • followed by pytest tests/ -v

• Regression guard for task definition

  • Added tests/test_pixi_tasks.py to assert workflow_test contains the exact required command list in order.

[tasks]
workflow_test = "python workflow.py --config pypsa_validation_processing/configs/config.country-timeseries.yaml && python workflow.py --config pypsa_validation_processing/configs/config.country-year.yaml && python workflow.py --config pypsa_validation_processing/configs/config.region-timeseries.yaml && python workflow.py --config pypsa_validation_processing/configs/config.region-year.yaml && pytest tests/ -v"

Summary by Sourcery

Add a Pixi task to run the full workflow configuration matrix followed by tests in a single command and guard it with a regression test.

New Features:

• Introduce a workflow_test Pixi task that sequentially runs all supported workflow configurations and the test suite.

Tests:

• Add a regression test to assert that the workflow_test Pixi task runs the expected commands in the correct order.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds a new Pixi task workflow_test that runs the full set of workflow configurations sequentially followed by the test suite, and introduces a regression test to ensure the task continues to invoke the expected command sequence in order.

Sequence diagram for Pixi workflow_test task execution

sequenceDiagram
    actor Developer
    participant Pixi
    participant workflow_py
    participant pytest_cli

    Developer->>Pixi: pixi run workflow_test
    Pixi->>workflow_py: python workflow.py --config pypsa_validation_processing/configs/config.country-timeseries.yaml
    workflow_py-->>Pixi: exit code
    Pixi->>workflow_py: python workflow.py --config pypsa_validation_processing/configs/config.country-year.yaml
    workflow_py-->>Pixi: exit code
    Pixi->>workflow_py: python workflow.py --config pypsa_validation_processing/configs/config.region-timeseries.yaml
    workflow_py-->>Pixi: exit code
    Pixi->>workflow_py: python workflow.py --config pypsa_validation_processing/configs/config.region-year.yaml
    workflow_py-->>Pixi: exit code
    Pixi->>pytest_cli: pytest tests/ -v
    pytest_cli-->>Pixi: test results
    Pixi-->>Developer: aggregated command results

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Flow diagram for workflow_test Pixi task command chain

flowchart LR
    dev[Developer runs pixi run workflow_test]
    pixi[Pixi task workflow_test]
    cts[Run workflow.py with config.country-timeseries.yaml]
    cy[Run workflow.py with config.country-year.yaml]
    rts[Run workflow.py with config.region-timeseries.yaml]
    ry[Run workflow.py with config.region-year.yaml]
    tests[Run pytest tests/ -v]

    dev --> pixi
    pixi --> cts
    cts --> cy
    cy --> rts
    rts --> ry
    ry --> tests

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File-Level Changes

Change	Details	Files
Introduce a Pixi task to run all required workflow configurations and tests in one command.	Add workflow_test task string under [tasks] that sequentially runs four workflow.py configurations using && and then executes pytest tests/ -v Keep existing workflow and test tasks unchanged aside from the new addition	pixi.toml
Add a unit test to assert the workflow_test Pixi task runs the exact expected command list in order.	Load pixi.toml via tomllib using a path resolved relative to the tests directory Extract the workflow_test command, split by &&, and assert the list of parts exactly matches the expected workflow and pytest invocations in order	tests/test_pixi_tasks.py

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#49	Add a Pixi task named workflow_test to pixi.toml.	✅
#49	Configure the workflow_test Pixi task to execute, in sequence, all specified commands: the four python workflow.py --config ... invocations for country/region and timeseries/year configs, followed by pytest tests/ -v.	✅

Possibly linked issues

• #Create local workflow testing pixi task: The PR exactly implements the requested workflow_test Pixi task running all listed commands, plus a validation test.

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[sourcery-ai]

Hey - I've left some high level feedback:

• The workflow_test task command is quite long and hard to scan; consider factoring the repeated python workflow.py --config ... invocations into a small wrapper script or separate Pixi task(s) so the config matrix is easier to maintain and extend.
• The test currently depends on splitting the task string by the literal delimiter " && "; if Pixi’s task syntax changes or additional shell flags are needed this will become brittle, so you might instead assert the full string or introduce a simple parser/helper that encapsulates the command structure.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- The `workflow_test` task command is quite long and hard to scan; consider factoring the repeated `python workflow.py --config ...` invocations into a small wrapper script or separate Pixi task(s) so the config matrix is easier to maintain and extend.
- The test currently depends on splitting the task string by the literal delimiter `" && "`; if Pixi’s task syntax changes or additional shell flags are needed this will become brittle, so you might instead assert the full string or introduce a simple parser/helper that encapsulates the command structure.

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[maxnutz]

Good work! Appoved!