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ewoooc/tests/test_chart_fallback_contract.py
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V10.437 harden sales chart rendering
2026-05-24 17:15:21 +08:00

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2.6 KiB
Python

from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
def test_daily_sales_canvas_is_primary_and_fallback_is_opt_in():
css = (ROOT / "web/static/css/page-daily-sales.css").read_text(encoding="utf-8")
script = (ROOT / "web/static/js/page-daily-sales.js").read_text(encoding="utf-8")
assert ".chart-container.has-html-chart canvas" not in css
assert ".chart-container.chart-fallback-active canvas" in css
assert ".chart-container.chart-empty-active canvas" in css
assert ".chart-container:not(.chart-fallback-active) .chart-fallback-list" in css
assert "node.content && node.content.textContent" in script
assert "chart-empty-active" in script
render_body = script.split("function renderAllCharts()", 1)[1].split("function bootCharts()", 1)[0]
assert "renderHtmlChartFallbacks();" not in render_body
assert "catch(error =>" in script
assert "renderHtmlChartFallbacks();" in script.split("catch(error =>", 1)[1]
def test_growth_analysis_canvas_is_primary_and_fallback_is_opt_in():
css = (ROOT / "web/static/css/page-growth-bem.css").read_text(encoding="utf-8")
script = (ROOT / "web/static/js/page-growth.js").read_text(encoding="utf-8")
assert ".ga-chart-card__body.has-html-chart canvas" not in css
assert ".ga-chart-card__body.chart-fallback-active canvas" in css
assert ".ga-chart-card__body.chart-empty-active canvas" in css
assert ".ga-chart-card__body:not(.chart-fallback-active) .ga-chart-snapshot" in css
assert "node.content && node.content.textContent" in script
assert "chart-empty-active" in script
render_body = script.split("function renderCharts()", 1)[1].split("function bootCharts()", 1)[0]
assert "renderHtmlChartFallbacks();" not in render_body
assert "catch(error =>" in script
assert "renderHtmlChartFallbacks();" in script.split("catch(error =>", 1)[1]
def test_chart_theme_has_cdn_timeout_and_fallback_sources():
script = (ROOT / "web/static/js" / "analysis-chart-theme.js").read_text(encoding="utf-8")
assert "CHART_LOAD_TIMEOUT_MS" in script
assert "Chart.js 載入逾時" in script
assert "cdn.jsdelivr.net/npm/chart.js@4.4.6" in script
assert "unpkg.com/chart.js@4.4.6" in script
assert "cdnjs.cloudflare.com/ajax/libs/Chart.js/4.4.6" in script
def test_sales_chart_runtime_guard_rejects_axis_only_canvases():
script = (ROOT / "scripts" / "check_sales_charts_runtime.js").read_text(encoding="utf-8")
assert "nonZeroPoints" in script
assert "colorPixels" in script
assert "has no colored chart marks" in script
assert "has no non-zero dataset values" in script