Add end-to-end Pester unit test

Author: andyleejordan

test/PowerShellEditorServices.Test.E2E/DebugAdapterProtocolMessageTests.cs

@@ -294,5 +294,30 @@ public async Task CanLaunchScriptWithCommentedLastLineAsync()
 
             Assert.Collection(GetLog(), (i) => Assert.Equal("a log statement", i));
         }
+
+        [Fact]
+        public async Task CanRunPesterTestFile()
+        {
+            string logStatement = GenerateScriptFromLoggingStatements("pester");
+            string filePath = NewTestFile(@"
+                Install-Module -Name Pester -Scope CurrentUser -Force | Import-Module -Force
+
+                Describe 'A' {
+                    Context 'B' {
+                        It 'C' {
+                " + logStatement + @"
+                        }
+                    }
+                }
+            ");
+
+            await PsesDebugAdapterClient.LaunchScript(filePath, Started).ConfigureAwait(false);
+
+            ConfigurationDoneResponse configDoneResponse = await PsesDebugAdapterClient.RequestConfigurationDone(new ConfigurationDoneArguments()).ConfigureAwait(false);
+            Assert.NotNull(configDoneResponse);
+            await Task.Delay(2000).ConfigureAwait(false);
+
+            Assert.Collection(GetLog(), (i) => Assert.Equal("pester", i));
+        }
     }
 }

tools/azurePipelinesBuild.ps1

@@ -16,7 +16,7 @@ if ($IsWindows -or $PSVersionTable.PSVersion.Major -lt 6) {
 # Update help needed for SignatureHelp LSP request.
 Update-Help -Force -ErrorAction SilentlyContinue
 
-# Needed for build and docs gen.
+# Install build and test dependencies.
 Install-Module -Name InvokeBuild -RequiredVersion 5.9.7 -Scope CurrentUser -Force
 Install-Module -Name platyPS -RequiredVersion 0.14.2 -Scope CurrentUser -Force