Function test_context_processing

tests/test_blueprints.py:634–672

(app, client)

def test_context_processing(app, client):
    answer_bp = flask.Blueprint("answer_bp", __name__)

    def template_string():
        return flask.render_template_string(
            "{% if notanswer %}{{ notanswer }} is not the answer. {% endif %}"
            "{% if answer %}{{ answer }} is the answer.{% endif %}"
        )

    # App global context processor
    @answer_bp.app_context_processor
    def not_answer_context_processor():
        return {"notanswer": 43}

    # Blueprint local context processor
    @answer_bp.context_processor
    def answer_context_processor():
        return {"answer": 42}

    # Setup endpoints for testing
    @answer_bp.route("/bp")
    def bp_page():
        return template_string()

    @app.route("/")
    def app_page():
        return template_string()

    # Register the blueprint
    app.register_blueprint(answer_bp)

    app_page_bytes = client.get("/").data
    answer_page_bytes = client.get("/bp").data

    assert b"43" in app_page_bytes
    assert b"42" not in app_page_bytes

    assert b"42" in answer_page_bytes
    assert b"43" in answer_page_bytes


def test_template_global(app):