From 62108cd158f8adfb8982d7bf74a816bb6451b419 Mon Sep 17 00:00:00 2001
From: Adam Sitnik <adam.sitnik@gmail.com>
Date: Thu, 27 Jun 2019 07:55:59 +0200
Subject: [PATCH 1/2] handle missing libgdiplus

---
 .../corefx/System.Drawing/Perf_Image_Load.cs  | 34 ++++++++++++++-----
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs b/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
index 4479aaa7c9b..55a54d81906 100644
--- a/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
+++ b/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
@@ -5,8 +5,8 @@
 using System.Collections.Generic;
 using System.Drawing.Imaging;
 using System.IO;
+using System.Runtime.InteropServices;
 using BenchmarkDotNet.Attributes;
-using BenchmarkDotNet.Extensions;
 using MicroBenchmarks;
 
 namespace System.Drawing.Tests
@@ -14,14 +14,10 @@ namespace System.Drawing.Tests
     [BenchmarkCategory(Categories.CoreFX)]
     public class Perf_Image_Load
     {
-        private static readonly ImageTestData[] TestCases = {
-            new ImageTestData(ImageFormat.Bmp),
-            new ImageTestData(ImageFormat.Jpeg),
-            new ImageTestData(ImageFormat.Png),
-            new ImageTestData(ImageFormat.Gif)
-        };
+        // this field is lazy to avoid the exception during static ctor initialization of this type (harder to catch and handle properly)
+        private static readonly Lazy<ImageTestData[]> LazyTestCases = new Lazy<ImageTestData[]>(CreateTestCases);
 
-        public IEnumerable<object> ImageFormats() => TestCases;
+        public IEnumerable<object> ImageFormats() => LazyTestCases.Value;
 
         [Benchmark]
         [ArgumentsSource(nameof(ImageFormats))]
@@ -50,6 +46,28 @@ public void Image_FromStream_NoValidation(ImageTestData format)
             }
         }
 
+        private static ImageTestData[] CreateTestCases()
+        {
+            try
+            {
+                return new [] 
+                {
+                    new ImageTestData(ImageFormat.Bmp),
+                    new ImageTestData(ImageFormat.Jpeg),
+                    new ImageTestData(ImageFormat.Png),
+                    new ImageTestData(ImageFormat.Gif)
+                };
+            }
+            catch (Exception) when (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.WriteLine("libgdiplus is missing, you can install it by running 'apt-get install libgdiplus'");
+                Console.ResetColor();
+
+                return Array.Empty<ImageTestData>();
+            }
+        }
+
         public class ImageTestData
         {
             public Stream Stream { get; }

From b0db9b7d6a529e8bf78424d5f5bd343d79cbb093 Mon Sep 17 00:00:00 2001
From: Adam Sitnik <adam.sitnik@gmail.com>
Date: Thu, 27 Jun 2019 08:09:59 +0200
Subject: [PATCH 2/2] rethrow the exception

---
 src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs b/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
index 55a54d81906..42484171f2a 100644
--- a/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
+++ b/src/benchmarks/micro/corefx/System.Drawing/Perf_Image_Load.cs
@@ -64,7 +64,7 @@ private static ImageTestData[] CreateTestCases()
                 Console.WriteLine("libgdiplus is missing, you can install it by running 'apt-get install libgdiplus'");
                 Console.ResetColor();
 
-                return Array.Empty<ImageTestData>();
+                throw;
             }
         }