Fixing background jobs for Unix and Windows (#1972)

src/System.Management.Automation/engine/hostifaces/PowerShellProcessInstance.cs

@@ -36,8 +36,13 @@ namespace System.Management.Automation.Runspaces
         /// </summary>
         static PowerShellProcessInstance()
         {
+#if UNIX
+            s_PSExePath = Path.Combine(Utils.GetApplicationBase(Utils.DefaultPowerShellShellID),
+                            "powershell");
+#else 
             s_PSExePath = Path.Combine(Utils.GetApplicationBase(Utils.DefaultPowerShellShellID),
                             "powershell.exe");
+#endif 
         }
 
         /// <summary>
@@ -71,18 +76,22 @@ namespace System.Management.Automation.Runspaces
                 }
             }
 
-            string processArguments = string.Empty;
+#if CORECLR
+            string processArguments = " -s -NoLogo -NoProfile";
+#else 
             // Adding Version parameter to powershell.exe
             // Version parameter needs to go before all other parameters because the native layer looks for Version or 
             // PSConsoleFile parameters before parsing other parameters.
             // The other parameters get parsed in the managed layer.
             Version tempVersion = powerShellVersion ?? PSVersionInfo.PSVersion;
-            processArguments = string.Format(CultureInfo.InvariantCulture,
+            string processArguments = string.Format(CultureInfo.InvariantCulture,
                        "-Version {0}", new Version(tempVersion.Major, tempVersion.Minor));
 
             processArguments = string.Format(CultureInfo.InvariantCulture,
                 "{0} -s -NoLogo -NoProfile", processArguments);
 
+#endif
+
             if (initializationScript != null)
             {
                 string scripBlockAsString = initializationScript.ToString();
@@ -106,7 +115,9 @@ namespace System.Management.Automation.Runspaces
                 RedirectStandardOutput = true,
                 RedirectStandardError = true,
                 CreateNoWindow = true,
+#if !UNIX 
                 LoadUserProfile = true,
+#endif
             };
 
             if (credential != null)

src/System.Management.Automation/utils/CryptoUtils.cs

@@ -1196,7 +1196,11 @@ namespace System.Management.Automation.Internal
         /// </summary>
         internal PSRemotingCryptoHelperServer()
         {
+#if UNIX
+            _rsaCryptoProvider = null;
+#else            
             _rsaCryptoProvider = PSRSACryptoServiceProvider.GetRSACryptoServiceProviderForServer();
+#endif 
         }
 
         #endregion Constructors

test/powershell/engine/Jobs.Tests.ps1

@@ -0,0 +1,23 @@
+Describe 'Basic Job Tests' -Tags 'CI' {
+
+    BeforeAll {
+        $job = Start-Job {1}
+    }
+
+    It 'Test job creation' {
+        $job | should not be $null
+    }
+
+    It 'Test job State' {
+        Wait-Job $job -Timeout 60
+        $job.JobStateInfo.State -eq 'Completed' | should be $true
+    }
+
+    It 'Job output test' {
+        Receive-Job $job -wait | should be 1
+    }
+
+    AfterAll {
+        Remove-Job $job -Force
+    }
+}