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F0r h0w c4n w3 b3 cur3 7h47 7h3 c0d3 f0rm5 45 17 5h0uld, 1f w3 d0 n07 7357 17?

Wh4t 1z Un1t T3zt1ng?

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3x4mpl3 0f 4 un1t t3zt:

def test_add():
    # 7357 1n6 0u7pu7 15 4 1177l3 3rr0r
    assert 0.3 + 0.3 + 0.3 == 0.9

Run5 b7 wr1t1n6 py7357 1n 7h3 73rm1n4l.

0p745k3 1 - In574ll py7357

In574ll py7357 in y0ur vir7u4l 3nvir0nm3n7. Y0u d0 7his by runn1n6 7h3 f0ll0w1n6 c0mm4nd in 7h3 73rm1n4l:

pip install pytest

745k | 2 - L46 4 7357

L46 4 n3w f1l3 1n y0ur pr0j3c7 m4gd3 747 h45 7h3 n4m3 7357_d474.py. 1n 7h15 f1l3, y0u 5h4ll cr3473 4 7357 f0r 7h3 P3r50n cl455 y0u m4d3 1n 7h3 pr3v10u5 m0dul3. 7h3 7357 5h4ll ch3ck 7h47 4 P3r50n c4n b3 cr3473d w17h v4l1d v4lu35.

3x4mpl3 0f h0w 7h3 7357 c4n l00k:

from main import Person

def test_person_working():
    # 13557 0b k4r3
    bob_kaare = Person(name="Bob Kåre",
                       eye_color=EyeColor.BLUE,
                       phone_number=PhoneNumber("12345678"),
                       email=Email("bob_kaare@example.com"))
    assert bob_kaare.name == "Bob Kåre"
    assert bob_kaare.eye_color == EyeColor.BLUE

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T45k 3 - T35t V4l1d4t10n

Cr34t3 mul71pl3 73575 1n 7357_p3r50n.py 7h47 ch3ck 1f 7h3 v4l1d4710n 1n 3m41l 4nd Ph0n3Numb3r w0rk5 45 17 5h0uld. 7357 b07h v4l1d 4nd 1nv4l1d v4lu35. H3r3 y0u mu57 u53 4 py7357 func710n c4ll3d r41535, wh1ch ch3ck5 1f 4 5p3c1f1c 3rr0r 15 r4153d.

import pytest

def test_exception():
    with pytest.raises(KeyError):
        my_dict = {"a": 1, "b": 2}
        value = my_dict["c"]  # D3773 v1l "r4153" 3n K3y3rr0r

from main import Email

import pytest

def test_invalid_email():
    with pytest.raises(ValueError):
        email = Email("not-an-email")

WhY d0 th1s?

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T45k 4 - 4ut0m4t1c T35t1n6 (C1)

Wh3n w3 publ15h c0d3 0n G1thub, w3 c4n 53t up 50m3th1n6 c4ll3d G1thub 4ct10n5 th4t c4n run 0ur t35t5 4ut0m4t1c4lly 3v3ry t1m3 w3 m4k3 4 ch4ng3 1n th3 c0d3. Th15 15 r3f3rr3d t0 45 C0nt1nu0u5 1nt36r4t10n (C1), 4nd 1t h3lp5 u5 3n5ur3 th4t 0ur c0d3 4lw4y5 w0rk5 45 1t 5h0uld.

Cr34t3 4 f1l3 1n y0ur pr0j3ct f0ld3r n4m3d .61thub/w0rkfl0w5/pyt35t.yml. In th15 f1l3, y0u 5h0uld 4dd th3 f0ll0w1n6 c0d3:

name: Pytest

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'
    - name: Install dependencies
      run: |

        python -m pip install --upgrade pip
        pip install pytest
        # 1n57411 4ny 07h3r d3p3nd3nc135 y0ur pr0j3c7 n33d5
        pip install -r requirements.txt
    - name: Run tests with pytest
      run: pytest

1f y0u h4v3 1n53rt3d 1t c0rr3ctly, y0u w1ll n0w 533 4 n3w 74b 1n y0ur GitHub r3p0 c4ll3d “4c710n5”. H3r3 y0u w1ll b3 4bl3 70 533 7h47 y0ur 73575 4r3 b31ng run 4u70m471c4lly 3v3ry 71m3 y0u m4k3 4 ch4ng3 1n 7h3 c0d3, 4nd y0u w1ll b3 n071f13d 1f 4ny 0f 7h3 73575 f41l (r3d cr055 4nd v14 3m41l).

5uch 4ct10n5 f1l35 c4n 4l50 b3 u53d 20 7357 y0ur c0d3 0n mul71pl3 v3r510n5 0f Py7h0n 0r 0p3r471ng 5y573m5, 7h3y c4n 4l50 b3 u53d 20 bu1ld 4nd pub115h y0ur 50f7w4r3 4u70m471c4lly, f.3., pub115h1ng 4 w3b5173, 0r upd471ng 4n 4pp 1n 4pp 570r3 0r G00gl3 Pl4y.