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fix(html-report): normalise per-test trace timeline to earliest span #6131

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Merged
thomhurst merged 1 commit into from
May 31, 2026
+6 −2
Merged

fix(html-report): normalise per-test trace timeline to earliest span #6131

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8 changes: 6 additions & 2 deletions TUnit.Engine/Reporters/Html/TestReport.template.html
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Original file line number Diff line number Diff line change
Expand Up @@ -2655,14 +2655,18 @@ <h3>Select a test</h3>
const byId = new Map(spans.map(s => [s.id, s]));
spans.forEach(s => { s._children = []; });
spans.forEach(s => { if (s.parent && byId.has(s.parent)) byId.get(s.parent)._children.push(s); });
const totalDur = Math.max(...spans.map(s => s.start + s.dur));
// Span starts are absolute offsets from the run start, so normalise to the
// earliest span — otherwise the axis begins at 0 and all bars are pushed to
// the right, leaving the lead-in time before the test empty.
const minStart = Math.min(...spans.map(s => s.start));
const totalDur = (Math.max(...spans.map(s => s.start + s.dur)) - minStart) || 1;
const ticks = 6, axisHtml = [];
for (let i = 0; i <= ticks; i++) axisHtml.push(`<span>${fmtDur((i/ticks)*totalDur)}</span>`);

const rows = [];
function walk(span, depth) {
const color = SERVICE_COLORS[span.service] || 'var(--text-muted)';
const left = (span.start / totalDur) * 100;
const left = ((span.start - minStart) / totalDur) * 100;
const width = Math.max(0.2, (span.dur / totalDur) * 100);
const err = (span.attrs && span.attrs['http.status_code'] >= 500) ? ' err' : '';
rows.push(`
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