Updating finding of test web server for .NET tests

Author: jimevans

dotnet/test/common/Environment/EnvironmentManager.cs

@@ -3,6 +3,7 @@
 using System.IO;
 using Newtonsoft.Json;
 using NUnit.Framework;
+using System.Collections.Generic;
 
 namespace OpenQA.Selenium.Environment
 {
@@ -21,8 +22,9 @@ public class EnvironmentManager
         private EnvironmentManager()
         {
             string currentDirectory = this.CurrentDirectory;
-            string configFile = Path.Combine(currentDirectory, "appconfig.json");
-            
+            string defaultConfigFile = Path.Combine(currentDirectory, "appconfig.json");
+            string configFile = TestContext.Parameters.Get<string>("ConfigFile", defaultConfigFile).Replace('/', Path.DirectorySeparatorChar);
+
             string content = File.ReadAllText(configFile);
             TestEnvironment env = JsonConvert.DeserializeObject<TestEnvironment>(content);
 
@@ -48,14 +50,57 @@ private EnvironmentManager()
             string projectRoot = System.Environment.GetEnvironmentVariable("TEST_SRCDIR");
             if (string.IsNullOrEmpty(projectRoot))
             {
+                // Walk up the directory tree until we find ourselves in a directory
+                // where the path to the Java web server can be determined.
+                bool continueTraversal = true;
                 DirectoryInfo info = new DirectoryInfo(currentDirectory);
-                while (info != info.Root && string.Compare(info.Name, "bazel-out", StringComparison.OrdinalIgnoreCase) != 0 && string.Compare(info.Name, "buck-out", StringComparison.OrdinalIgnoreCase) != 0 && string.Compare(info.Name, "build", StringComparison.OrdinalIgnoreCase) != 0)
+                while (continueTraversal)
                 {
-                    info = info.Parent;
+                    if (info == info.Root)
+                    {
+                        break;
+                    }
+
+                    foreach (var childDir in info.EnumerateDirectories())
+                    {
+                        // Case 1: The current directory of this assembly is in the
+                        // same direct sub-tree as the Java targets (usually meaning
+                        // executing tests from the same build system as that which
+                        // builds the Java targets).
+                        // If we find a child directory named "java", then the web
+                        // server should be able to be found under there.
+                        if (string.Compare(childDir.Name, "java", StringComparison.OrdinalIgnoreCase) == 0)
+                        {
+                            continueTraversal = false;
+                            break;
+                        }
+
+                        // Case 2: The current directory of this assembly is a different
+                        // sub-tree as the Java targets (usually meaning executing tests
+                        // from a different build system as that which builds the Java
+                        // targets).
+                        // If we travel to a place in the tree where there is a child
+                        // directory named "bazel-bin", the web server should be found
+                        // in the "java" subdirectory of that directory.
+                        if (string.Compare(childDir.Name, "bazel-bin", StringComparison.OrdinalIgnoreCase) == 0)
+                        {
+                            string javaOutDirectory = Path.Combine(childDir.FullName, "java");
+                            if (Directory.Exists(javaOutDirectory))
+                            {
+                                info = new DirectoryInfo(javaOutDirectory);
+                                continueTraversal = false;
+                                break;
+                            }
+                        }
+                    }
+
+                    if (continueTraversal)
+                    {
+                        info = info.Parent;
+                    }
                 }
 
-                info = info.Parent;
-                projectRoot = Path.Combine(info.FullName, "bazel-bin");
+                projectRoot = info.FullName;
             }
             else
             {

dotnet/test/common/Environment/TestWebServer.cs

@@ -105,8 +105,8 @@ public void Start()
                     string error = "'CaptureWebServerOutput' parameter is false. Web server output not being captured.";
                     if (captureWebServerOutput)
                     {
-                        webserverProcess.StandardError.ReadToEnd();
-                        webserverProcess.StandardOutput.ReadToEnd();
+                        error = webserverProcess.StandardError.ReadToEnd();
+                        output = webserverProcess.StandardOutput.ReadToEnd();
                     }
 
                     string errorMessage = string.Format("Could not start the test web server in {0} seconds.\nWorking directory: {1}\nProcess Args: {2}\nstdout: {3}\nstderr: {4}", timeout.TotalSeconds, projectRootPath, processArgsBuilder, output, error);