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using System;
using System.Linq;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using Microsoft.PowerShell.Commands;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using PSParallel;
namespace PSParallelTests
{
[TestClass]
public sealed class InvokeParallelTests : IDisposable
{
readonly RunspacePool m_runspacePool;
readonly InitialSessionState _iss;
public InvokeParallelTests()
{
_iss = CreateInitialSessionState();
m_runspacePool = RunspaceFactory.CreateRunspacePool(_iss);
m_runspacePool.SetMaxRunspaces(10);
m_runspacePool.Open();
}
private static InitialSessionState CreateInitialSessionState()
{
var iss = InitialSessionState.Create();
iss.LanguageMode = PSLanguageMode.FullLanguage;
iss.Commands.Add(new[]
{
new SessionStateCmdletEntry("Write-Error", typeof(WriteErrorCommand), null),
new SessionStateCmdletEntry("Write-Verbose", typeof(WriteVerboseCommand), null),
new SessionStateCmdletEntry("Write-Debug", typeof(WriteDebugCommand), null),
new SessionStateCmdletEntry("Write-Progress", typeof(WriteProgressCommand), null),
new SessionStateCmdletEntry("Write-Warning", typeof(WriteWarningCommand), null),
new SessionStateCmdletEntry("Write-Information", typeof(WriteInformationCommand), null),
new SessionStateCmdletEntry("Invoke-Parallel", typeof(InvokeParallelCommand), null),
});
iss.Providers.Add(new SessionStateProviderEntry("Function", typeof(FunctionProvider), null));
iss.Providers.Add(new SessionStateProviderEntry("Variable", typeof(VariableProvider), null));
return iss;
}
[TestMethod]
public void TestOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddCommand("Invoke-Parallel")
.AddParameter("ScriptBlock", ScriptBlock.Create("$_* 2"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1,2,3,4,5};
input.Complete();
var output = ps.Invoke<int>(input);
var sum = output.Aggregate(0, (a, b) => a + b);
Assert.AreEqual(30, sum);
}
}
[TestMethod]
public void TestParallelOutput()
{
using (var ps = PowerShell.Create())
{
//ps.RunspacePool = m_runspacePool;
ps.AddCommand("Invoke-Parallel")
.AddParameter("ScriptBlock", ScriptBlock.Create("$_* 2"))
.AddParameter("ThrottleLimit", 10);
var input = new PSDataCollection<int>(Enumerable.Range(1, 1000));
input.Complete();
var output = ps.Invoke<int>(input);
var sum = output.Aggregate(0, (a, b) => a + b);
Assert.AreEqual(1001000, sum);
}
}
[TestMethod]
public void TestVerboseOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$VerbosePreference=[System.Management.Automation.ActionPreference]::Continue", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Verbose $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
Assert.IsFalse(ps.HadErrors, "We don't expect errors here");
var vrb = ps.Streams.Verbose.ReadAll();
Assert.IsTrue(vrb.Any(v => v.Message == "1"), "Some verbose message should be '1'");
}
}
[TestMethod]
public void TestNoVerboseOutputWithoutPreference()
{
using (var ps = PowerShell.Create())
{
ps.Runspace = RunspaceFactory.CreateRunspace();
ps.Runspace.Open();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Verbose $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
Assert.IsFalse(ps.HadErrors, "We don't expect errors here");
var vrb = ps.Streams.Verbose.ReadAll();
Assert.IsFalse(vrb.Any(v => v.Message == "1"), "No verbose message should be '1'");
ps.Runspace.Dispose();
}
}
[TestMethod]
public void TestDebugOutput()
{
using (var ps = PowerShell.Create())
{
using (var rs = RunspaceFactory.CreateRunspace(_iss))
{
rs.Open();
ps.Runspace = rs;
ps.AddScript("$DebugPreference=[System.Management.Automation.ActionPreference]::Continue", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Debug $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> { 1, 2, 3, 4, 5 };
input.Complete();
ps.Invoke<int>(input);
Assert.IsFalse(ps.HadErrors, "We don't expect errors here");
var dbg = ps.Streams.Debug.ReadAll();
Assert.IsTrue(dbg.Any(d => d.Message == "1"), "Some debug message should be '1'");
}
}
}
[TestMethod]
public void TestNoDebugOutputWithoutPreference()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Debug $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
var dbg = ps.Streams.Debug.ReadAll();
Assert.IsFalse(dbg.Any(d => d.Message == "1"), "No debug message should be '1'");
}
}
[TestMethod]
public void TestWarningOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$WarningPreference='Continue'", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Warning $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
var wrn = ps.Streams.Warning.ReadAll();
Assert.IsTrue(wrn.Any(w => w.Message == "1"), "Some warning message should be '1'");
}
}
[TestMethod]
public void TestNoWarningOutputWithoutPreference()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$WarningPreference='SilentlyContinue'", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Warning $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
var wrn = ps.Streams.Warning.ReadAll();
Assert.IsFalse(wrn.Any(w => w.Message == "1"), "No warning message should be '1'");
}
}
[TestMethod]
public void TestErrorOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$ErrorActionPreference='Continue'", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Error -Message $_ -TargetObject $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
var err = ps.Streams.Error.ReadAll();
Assert.IsTrue(err.Any(e => e.Exception.Message == "1"), "Some warning message should be '1'");
}
}
[TestMethod]
public void TestNoErrorOutputWithoutPreference()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$ErrorActionPreference='SilentlyContinue'", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("Write-Error -message $_ -TargetObject $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke<int>(input);
var err = ps.Streams.Error.ReadAll();
Assert.IsFalse(err.Any(e => e.Exception.Message == "1"), "No Error message should be '1'");
}
}
[TestMethod]
public void TestBinaryExpressionVariableCapture()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("[int]$x=10", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("$x -eq 10"))
.AddParameter("ThrottleLimit", 1)
.AddParameter("InputObject", 1);
var result = ps.Invoke<bool>().First();
Assert.IsTrue(result);
}
}
[TestMethod]
public void TestAssingmentExpressionVariableCapture()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("[int]$x=10;", false).Invoke();
ps.Commands.Clear();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("$y = $x * 5; $y"))
.AddParameter("ThrottleLimit", 1)
.AddParameter("InputObject", 1);
var result = ps.Invoke<int>().First();
Assert.AreEqual(50, result);
}
}
[TestMethod]
public void TestProgressOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$ProgressPreference='Continue'", false).Invoke();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock",
ScriptBlock.Create("Write-Progress -activity 'Test' -Status 'Status' -currentoperation $_"))
.AddParameter("ThrottleLimit", 1);
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke(input);
var progress = ps.Streams.Progress.ReadAll();
Assert.IsTrue(10 < progress.Count(pr => pr.Activity == "Invoke-Parallel" || pr.Activity == "Test"));
}
}
[TestMethod]
public void TestProgressOutput2Workers()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript("$ProgressPreference='Continue'", false).Invoke();
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock",
ScriptBlock.Create("Write-Progress -activity 'Test' -Status 'Status' -currentoperation $_"))
.AddParameter("ThrottleLimit", 2);
var input = new PSDataCollection<int> { 1, 2, 3, 4, 5, 6, 7,8, 9,10 };
input.Complete();
ps.Invoke(input);
var progress = ps.Streams.Progress.ReadAll();
Assert.IsTrue(19 <= progress.Count(pr => pr.Activity == "Invoke-Parallel" || pr.Activity == "Test"));
}
}
[TestMethod]
public void TestNoProgressOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock",
ScriptBlock.Create("Write-Progress -activity 'Test' -Status 'Status' -currentoperation $_"))
.AddParameter("ThrottleLimit", 1)
.AddParameter("NoProgress");
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
ps.Invoke(input);
var progress = ps.Streams.Progress.ReadAll();
Assert.IsFalse(progress.Any(pr => pr.Activity == "Invoke-Parallel"));
Assert.AreEqual(5, progress.Count(pr => pr.Activity == "Test"));
}
}
[TestMethod]
public void TestFunctionCaptureOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript(@"
function foo($x) {return $x * 2}
", false);
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("foo $_"))
.AddParameter("ThrottleLimit", 1)
.AddParameter("NoProgress");
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
var output = ps.Invoke<int>(input);
var sum = output.Aggregate(0, (a, b) => a + b);
Assert.AreEqual(30, sum);
}
}
[TestMethod]
public void TestRecursiveFunctionCaptureOutput()
{
using (var ps = PowerShell.Create())
{
ps.RunspacePool = m_runspacePool;
ps.AddScript(@"
function foo($x) {return 2 * $x}
function bar($x) {return 3 * (foo $x)}
", false);
ps.AddStatement()
.AddCommand("Invoke-Parallel", false)
.AddParameter("ScriptBlock", ScriptBlock.Create("bar $_"))
.AddParameter("ThrottleLimit", 1)
.AddParameter("NoProgress");
var input = new PSDataCollection<int> {1, 2, 3, 4, 5};
input.Complete();
var output = ps.Invoke<int>(input);
var sum = output.Aggregate(0, (a, b) => a + b);
Assert.AreEqual(90, sum);
}
}
public void Dispose()
{
m_runspacePool.Dispose();
}
}
}