python / python/cpython

Larger and/or configurable _MAX_LENGTH for unittest messages

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3.7 (EOL) stdlib type-feature
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Python
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Description

BPO 30839
Nosy @bitdancer
Dependencies
  • bpo-27432: Support unittest assertion truncation of repr in error messages
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = None
    created_at = <Date 2017-07-03.17:59:26.581>
    labels = ['3.7', 'type-feature', 'library']
    title = 'Larger and/or configurable _MAX_LENGTH for unittest messages'
    updated_at = <Date 2017-07-05.20:27:37.208>
    user = 'https://bugs.python.org/maarten-treewalker'
    

    bugs.python.org fields:

    activity = <Date 2017-07-05.20:27:37.208>
    actor = 'r.david.murray'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)']
    creation = <Date 2017-07-03.17:59:26.581>
    creator = 'maarten-treewalker'
    dependencies = ['27432']
    files = []
    hgrepos = []
    issue_num = 30839
    keywords = []
    message_count = 2.0
    messages = ['297605', '297779']
    nosy_count = 2.0
    nosy_names = ['r.david.murray', 'maarten-treewalker']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'enhancement'
    url = 'https://bugs.python.org/issue30839'
    versions = ['Python 3.7']
    

    Contributor guide

    Open the contributing guide

    First steps

    1. Read the whole issue, then the project's contributing guide.
    2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
    3. Fork the repository and make your change on a branch.
    4. Open a pull request that references the issue number.

    Research direction

    Start by reading unittest's assertion-message truncation behavior and the linked dependency, bpo-27432, to understand the existing _MAX_LENGTH handling. Define how a larger or configurable limit should affect unittest messages, then verify the behavior with focused unittest coverage.

    Written by the indexing model from the issue text.

    Assessment

    Tech stack
    python
    Domain
    testing
    Issue type
    Feature
    Difficulty
    4/5
    Estimated time
    3-5 days
    Activity status
    Stale
    Clarity
    Mostly clear
    Newbie friendliness
    35/100

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