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Merged
ladeak merged 1 commit into from
Jun 21, 2026
Merged

Add color annotations to statistics printer output #55

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12 changes: 10 additions & 2 deletions src/CHttp/Performance/Statitics/StatisticsPrinter.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System.Numerics;
using System.Drawing;
using System.Numerics;
using CHttp.Abstractions;
using CHttp.Data;
using CHttp.Performance.Data;
Expand Down Expand Up @@ -51,11 +52,15 @@ public ValueTask HandleStats(PerformanceMeasurementResults session, Stats stats)
int lineLength = _console.WindowWidth;
var scaleNormalize = (double)lineLength / session.Summaries.Count;
string separator = new string('-', lineLength);

// Histogram
if (session.Summaries.Count >= 100)
{
_console.WriteLine(separator);
PrintHistogram(stats, scaleNormalize);
var oldColor = _console.ForegroundColor;
_console.ForegroundColor = ConsoleColor.Cyan;
PrintHistogram(stats, scaleNormalize);
_console.ForegroundColor = oldColor;
}
_console.WriteLine(separator);
PrintStatusCodes(stats.StatusCodes);
Expand All @@ -65,8 +70,11 @@ public ValueTask HandleStats(PerformanceMeasurementResults session, Stats stats)

private void PrintStatusCodes(int[] statusCodes)
{
var oldColor = _console.ForegroundColor;
_console.ForegroundColor = statusCodes[0] + statusCodes[2]+ statusCodes[3]+ statusCodes[4]+ statusCodes[5] > 0 ? ConsoleColor.Red : ConsoleColor.Green;
_console.WriteLine("HTTP status codes:");
_console.WriteLine($"1xx: {statusCodes[0]}, 2xx: {statusCodes[1]}, 3xx: {statusCodes[2]}, 4xx: {statusCodes[3]}, 5xx: {statusCodes[4]}, Other: {statusCodes[5]}");
_console.ForegroundColor = oldColor;
}

private void PrintHistogram(Stats stats, double scaleNormalize)
Expand Down
32 changes: 16 additions & 16 deletions tests/CHttp.Tests/Performance/CHttpDiffFunctionalTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -87,15 +87,15 @@ public async Task DisplayingMultipleEqualFile()
.InvokeAsync(cancellationToken: TestContext.Current.CancellationToken)
.WaitAsync(TimeSpan.FromSeconds(10), TestContext.Current.CancellationToken);

Assert.Contains("| Mean: 1.000 s 0 ns |", console.Text);
Assert.Contains("| StdDev: 0.000 ns 0 ns |", console.Text);
Assert.Contains("| Error: 0.000 ns 0 ns |", console.Text);
Assert.Contains("| Median: 1.000 s 0 ns |", console.Text);
Assert.Contains("| Min: 1.000 s 0 ns |", console.Text);
Assert.Contains("| Max: 1.000 s 0 ns |", console.Text);
Assert.Contains("| 95th: 1.000 s 0 ns |", console.Text);
Assert.Contains("| Mean: 1.000 s [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| StdDev: 0.000 ns [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Error: 0.000 ns [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Median: 1.000 s [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Min: 1.000 s [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Max: 1.000 s [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| 95th: 1.000 s [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Throughput: 100.000 B/s 0 B/s |", console.Text);
Assert.Contains("| Req/Sec: 1 0 |", console.Text);
Assert.Contains("| Req/Sec: 1 [color:Green] 0[color:Black] |", console.Text);
Assert.Contains("1xx: 0 +0, 2xx: 1 +0, 3xx: 0 +0, 4xx: 0 +0, 5xx: 0 +0, Other: 0 +0", console.Text);
}

Expand Down Expand Up @@ -128,15 +128,15 @@ public async Task DisplayingMultipleDifferentFile()
.WaitAsync(TimeSpan.FromSeconds(10), TestContext.Current.CancellationToken);

Assert.Contains($"RequestCount: 1, Clients: 1", console.Text);
Assert.Contains("| Mean: 1.000 s +1.000 s |", console.Text);
Assert.Contains("| StdDev: 0.000 ns 0 ns |", console.Text);
Assert.Contains("| Error: 0.000 ns 0 ns |", console.Text);
Assert.Contains("| Median: 1.000 s +1.000 s |", console.Text);
Assert.Contains("| Min: 1.000 s +1.000 s |", console.Text);
Assert.Contains("| Max: 1.000 s +1.000 s |", console.Text);
Assert.Contains("| 95th: 1.000 s +1.000 s |", console.Text);
Assert.Contains("| Mean: 1.000 s [color:Red] +1.000 s [color:Black] |", console.Text);
Assert.Contains("| StdDev: 0.000 ns [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Error: 0.000 ns [color:Green] 0 ns[color:Black] |", console.Text);
Assert.Contains("| Median: 1.000 s [color:Red] +1.000 s [color:Black] |", console.Text);
Assert.Contains("| Min: 1.000 s [color:Red] +1.000 s [color:Black] |", console.Text);
Assert.Contains("| Max: 1.000 s [color:Red] +1.000 s [color:Black] |", console.Text);
Assert.Contains("| 95th: 1.000 s [color:Red] +1.000 s [color:Black] |", console.Text);
Assert.Contains("| Throughput: 100.000 B/s +100.000 B/s |", console.Text);
Assert.Contains("| Req/Sec: 1 -0.5 |", console.Text);
Assert.Contains("| Req/Sec: 1 [color:Red] -0.5[color:Black] |", console.Text);
Assert.Contains("1xx: 0 +0, 2xx: 1 -1, 3xx: 0 +0, 4xx: 0 +1, 5xx: 0 +0, Other: 0 +0", console.Text);
}

Expand Down
45 changes: 44 additions & 1 deletion tests/CHttp.Tests/Performance/Statistics/StatisticsPrinterTests.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System.Globalization;
using System.Net;
using CHttp.Abstractions;
using CHttp.Data;
using CHttp.Performance.Data;
Expand Down Expand Up @@ -159,10 +160,52 @@ public async Task Histogram()
var sut = new StatisticsPrinter(console);
await sut.SummarizeResultsAsync(new PerformanceMeasurementResults() { Summaries = input, TotalBytesRead = 1, MaxConnections = 1, Behavior = new(input.Count, 1, false) });

Assert.Contains(" 1.300 s ##################################################", console.Text);
Assert.Contains("[color:Cyan] 1.300 s ##################################################", console.Text);
Assert.Contains(" 2.200 s ##################################################", console.Text);
Assert.Contains(" 3.100 s ##################################################", console.Text);
Assert.Contains(" 4.000 s ##################################################", console.Text);
Assert.Contains("[color:Black]---", console.Text);
Assert.Contains("[color:Green]HTTP status codes:", console.Text);
Assert.Equal(200, console.Text.Count(x => x == '#'));
}

[Theory]
[InlineData(HttpStatusCode.Continue)] // 100
[InlineData(HttpStatusCode.Ambiguous)] // 300
[InlineData(HttpStatusCode.BadRequest)] // 400
[InlineData(HttpStatusCode.InternalServerError)] // 500
public async Task ErrorCodes_Print_RedStatusLine(HttpStatusCode statusCode)
{
var input = new List<Summary>();
for (int i = 0; i < 100; i++)
{
var summary = new Summary("url", new DateTime(2023, 04, 05, 21, 32, 00, DateTimeKind.Utc), TimeSpan.FromSeconds(1));
summary.RequestCompleted(statusCode);
input.Add(summary);
}
var console = new TestConsoleAsOuput(59);
var sut = new StatisticsPrinter(console);
await sut.SummarizeResultsAsync(new PerformanceMeasurementResults() { Summaries = input, TotalBytesRead = 1, MaxConnections = 1, Behavior = new(input.Count, 1, false) });

Assert.Contains("[color:Red]HTTP status codes:", console.Text);
Assert.Contains("[color:Black]---", console.Text);
}

[Fact]
public async Task OtherError_Print_RedStatusLine()
{
var input = new List<Summary>();
for (int i = 0; i < 100; i++)
{
var summary = new Summary("url", new DateTime(2023, 04, 05, 21, 32, 00, DateTimeKind.Utc), TimeSpan.FromSeconds(1)) { ErrorCode = ErrorType.Other };
summary.RequestCompleted((HttpStatusCode)999);
input.Add(summary);
}
var console = new TestConsoleAsOuput(59);
var sut = new StatisticsPrinter(console);
await sut.SummarizeResultsAsync(new PerformanceMeasurementResults() { Summaries = input, TotalBytesRead = 1, MaxConnections = 1, Behavior = new(input.Count, 1, false) });

Assert.Contains("[color:Red]HTTP status codes:", console.Text);
Assert.Contains("[color:Black]---", console.Text);
}
}
12 changes: 10 additions & 2 deletions tests/CHttp.Tests/TestConsoleAsOuput.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,19 @@ public TestConsoleAsOuput(int windowWidth)
WindowWidth = windowWidth;
}

public string Text { get => _sb.ToString(); }
public string Text => field ??= _sb.ToString();

public int WindowWidth { get; }

public ConsoleColor ForegroundColor { get; set; }
public ConsoleColor ForegroundColor
{
get;
set
{
field = value;
_sb.Append($"[color:{value}]");
}
}

public (int Left, int Top) GetCursorPosition() => (0, 0);

Expand Down
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