NYU - Class 9

[s2t2]

Here are some code snippets to use when following along in class (quality control exercise).

[s2t2]

RPS test:

# this is the "test/rps_test.py" file...

from app.rps import determine_winner


def test_winners():
    # tests for all edge cases:

    assert determine_winner(u="rock", c="rock") == "TIE GAME"
    assert determine_winner(u="rock", c="paper") == "COMPUTER WINS"
    assert determine_winner(u="rock", c="scissors") == "USER WINS"

    assert determine_winner(u="paper", c="rock") == "USER WINS"
    assert determine_winner(u="paper", c="paper") == "TIE GAME"
    assert determine_winner(u="paper", c="scissors") == "COMPUTER WINS"

    assert determine_winner(u="scissors", c="scissors") == "TIE GAME"
    assert determine_winner(u="scissors", c="paper") == "USER WINS"
    assert determine_winner(u="scissors", c="rock") == "COMPUTER WINS"

Stocks test:

# this is the "test/stocks_test.py" file...

from pandas import DataFrame

from app.stocks import fetch_stocks_csv


def test_data_fetching():

    stocks_df = fetch_stocks_csv("GOOGL")

    assert isinstance(stocks_df, DataFrame)

    assert "timestamp" in stocks_df.columns
    assert "adjusted_close" in stocks_df.columns

    assert len(stocks_df) >= 100

[s2t2]

After adding a generic Python app workflow file, we will need to update it to implement environment variables

# This workflow will install Python dependencies, run tests and lint with a single version of Python
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python

name: Python application

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

permissions:
  contents: read

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Set up Python 3.10
      uses: actions/setup-python@v3
      with:
        python-version: "3.10"
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8 pytest
        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
    - name: Lint with flake8
      run: |
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
    - name: Test with pytest
      env:
        # set environment variables to use during testing
        # ... using the repository secret values set securely via repo settings
        ALPHAVANTAGE_API_KEY: ${{ secrets.ALPHAVANTAGE_API_KEY }}
      run: |
        pytest