test_build_error_handler() — flask Function Reference

Architecture documentation for the test_build_error_handler() function in test_basic.py from the flask codebase.

Function python ApplicationCore ExtensionRegistry

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ApplicationCore→ ExtensionRegistry→ test_build_error_handler() — flask Function Reference

Dependency Diagram

graph TD
  4a81d0fd_aed8_42ef_023f_b2757587259c["test_build_error_handler()"]
  85bc4fb5_d1d7_a135_020d_69e052c12c0f["test_basic.py"]
  4a81d0fd_aed8_42ef_023f_b2757587259c -->|defined in| 85bc4fb5_d1d7_a135_020d_69e052c12c0f
  style 4a81d0fd_aed8_42ef_023f_b2757587259c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

tests/test_basic.py lines 1351–1374

def test_build_error_handler(app):
    # Test base case, a URL which results in a BuildError.
    with app.test_request_context():
        pytest.raises(BuildError, flask.url_for, "spam")

    # Verify the error is re-raised if not the current exception.
    try:
        with app.test_request_context():
            flask.url_for("spam")
    except BuildError as err:
        error = err
    try:
        raise RuntimeError("Test case where BuildError is not current.")
    except RuntimeError:
        pytest.raises(BuildError, app.handle_url_build_error, error, "spam", {})

    # Test a custom handler.
    def handler(error, endpoint, values):
        # Just a test.
        return "/test_handler/"

    app.url_build_error_handlers.append(handler)
    with app.test_request_context():
        assert flask.url_for("spam") == "/test_handler/"