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Special case time 0 display in trace times #4183

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May 16, 2024
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6 changes: 6 additions & 0 deletions src/Aspire.Dashboard/Otlp/Model/DurationFormatter.cs
Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,12 @@ public static string FormatDuration(TimeSpan duration)
var ofPrevious = primaryUnit.Ticks / secondaryUnit.Ticks;
var ticks = (double)duration.Ticks;

// Special case time 0 to not display any unit, as "0μs" looks quirky
if (ticks == 0)
{
return "0";
}

if (primaryUnit.IsDecimal)
{
// If the unit is decimal based, display as a decimal
Expand Down
2 changes: 1 addition & 1 deletion tests/Aspire.Dashboard.Tests/DurationFormatterTests.cs
Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,6 @@ public void DisplaysTimesLessThanMicroseconds()
public void DisplaysTimesOf0()
{
var input = 0;
Assert.Equal("0μs", DurationFormatter.FormatDuration(TimeSpan.FromTicks(input)));
Assert.Equal("0", DurationFormatter.FormatDuration(TimeSpan.FromTicks(input)));
}
}