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python testing

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Innocent Iguana answered on February 12, 2021 Popularity 9/10 Helpfulness 4/10

answer python testing

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# Typical testing
df_transformed = ...
df_loaded = pd.read_sql("SELECT * FROM clean_stock_data", con=db_engine)
# Compare the two DataFrames to ensure that no data loss happened
print(df_transformed.equals(df_loaded))

### Standard Approach (Any test case is a function and except for fixtures should start with "test_")

### Test - 1
def test_transformed_data():
    raw_stock_data = extract("raw_stock_data.csv")
    clean_stock_data = transform(raw_data)
    assert isinstance(clean_stock_data, pd.DataFrame)

### Test - 2
import pytest

@pytest.fixture()
def clean_data(): # Fixture allows the function name to be used as a variable that holds the return value
    raw_stock_data = extract("raw_stock_data.csv")
    clean_stock_data = transform(raw_data)
    return clean_stock_data

def test_transformed_data(clean_data): # Fixture allows the function-as-variable to be passed in the test
    assert isinstance(clean_data, pd.DataFrame)


### Test - 3 

def test_transformed_data(clean_data): # Fixture allows the function-as-variable to be passed in the test
    assert len(clean_data.columns) == 4 # Check number of columns
    assert clean_data["open"].min() >= 0 # Check the lower bound of a column
    assert clean_data["open"].min() >= 0 and clean_data["open"].max() <= 1000 # Include other assert statements here

# Note: To run the test, execute command : python -m pytest

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Tags: python testing

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Contributed on Oct 02 2024

Innocent Iguana

0 Answers Avg Quality 2/10

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111

hmm yes very good reverse proxy

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Contributed on Feb 12 2021

Itchy Ibex

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nginx

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$ sudo apt-get install nginx

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Source: medium.com

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Contributed on May 12 2022

Brainy Butterfly

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python testing

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assert df['col'].dtype == 'int'
assert phone['Phone number'].str.contains("+|-").any() == False

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Contributed on Nov 29 2023

Innocent Iguana

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Nginx && Docker

docker run -d -t -p 80:80 --name web nginx:latest 
docker exec -it web

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Contributed on Oct 13 2021

Magnificent Monkey Adi

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app.use((err, req, res, next) => {
  console.error(err.stack)
  res.status(500).send('Something broke!')
})

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Source: expressjs.com

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Contributed on Jul 06 2022

khaled elsayed

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What Is Python Testing?

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Automated testing is a well-known context in the world of testing. It is where the test plans are being executed using script instead of a human.

Python comes with the tools and libraries that support automated testing for your system.

Python Test cases are comparatively easy to write. With the increased use of Python, Python-based test automation frameworks are also becoming popular.

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Contributed on Apr 02 2023

Vinay Rawal

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Nginx

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Something like APache or IIS in windows.

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Contributed on Dec 17 2022

Deepika Sahu

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python testing

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