PowerShell · adityapatwardhan · Aug 12, 2019 · Jul 18, 2019 · Aug 9, 2019 · Aug 10, 2019
diff --git a/src/System.Management.Automation/engine/PSVersionInfo.cs b/src/System.Management.Automation/engine/PSVersionInfo.cs
@@ -59,6 +59,8 @@ public class PSVersionInfo
         private static readonly Version s_psV5Version = new Version(5, 0);
         private static readonly Version s_psV51Version = new Version(5, 1, NTVerpVars.PRODUCTBUILD, NTVerpVars.PRODUCTBUILD_QFE);
         private static readonly SemanticVersion s_psV6Version = new SemanticVersion(6, 0, 0, preReleaseLabel: null, buildLabel: null);
+        private static readonly SemanticVersion s_psV61Version = new SemanticVersion(6, 1, 0, preReleaseLabel: null, buildLabel: null);
+        private static readonly SemanticVersion s_psV62Version = new SemanticVersion(6, 2, 0, preReleaseLabel: null, buildLabel: null);
         private static readonly SemanticVersion s_psSemVersion;
         private static readonly Version s_psVersion;
 
@@ -105,7 +107,7 @@ static PSVersionInfo()
             s_psVersionTable[PSVersionInfo.PSVersionName] = s_psSemVersion;
             s_psVersionTable[PSVersionInfo.PSEditionName] = PSEditionValue;
             s_psVersionTable[PSGitCommitIdName] = rawGitCommitId;
-            s_psVersionTable[PSCompatibleVersionsName] = new Version[] { s_psV1Version, s_psV2Version, s_psV3Version, s_psV4Version, s_psV5Version, s_psV51Version, s_psV6Version, s_psVersion };
+            s_psVersionTable[PSCompatibleVersionsName] = new Version[] { s_psV1Version, s_psV2Version, s_psV3Version, s_psV4Version, s_psV5Version, s_psV51Version, s_psV6Version, s_psV61Version, s_psV62Version, s_psVersion };
             s_psVersionTable[PSVersionInfo.SerializationVersionName] = new Version(InternalSerializer.DefaultVersion);
             s_psVersionTable[PSVersionInfo.PSRemotingProtocolVersionName] = RemotingConstants.ProtocolVersion;
             s_psVersionTable[PSVersionInfo.WSManStackVersionName] = GetWSManStackVersion();

diff --git a/test/powershell/Host/PSVersionTable.Tests.ps1 b/test/powershell/Host/PSVersionTable.Tests.ps1
@@ -22,6 +22,10 @@ Describe "PSVersionTable" -Tags "CI" {
             $expectedGitCommitIdPattern = "^$mainVersionPattern$"
             $unexpectectGitCommitIdPattern = $fullVersionPattern
         }
+
+        $powerShellVersions = "1.0", "2.0", "3.0", "4.0", "5.0", "5.1", "6.0", "6.1", "6.2", "7.0"
+        $powerShellCompatibleVersions = $PSVersionTable.PSCompatibleVersions |
+            ForEach-Object {$_.ToString(2).SubString(0,3)}
     }
 
     It "Should have version table entries" {
@@ -158,4 +162,16 @@ Describe "PSVersionTable" -Tags "CI" {
             $PSVersionTable.Add("PSEdition", $EditionValue)
         }
     }
+
+    It "Verify PSCompatibleVersions has an entry for all known versions of PowerShell" {
+        foreach ($version in $powerShellVersions) {
+            $version | Should -BeIn $powerShellCompatibleVersions
+        }
+    }
+
+    It "Verify PSCompatibleVersions has no unknown PowerShell entries" {
+        foreach ($version in $powerShellCompatibleVersions) {
+            $version | Should -BeIn $powerShellVersions
+        }
+    }
 }
diff --git a/test/powershell/Language/Scripting/Requires.Tests.ps1 b/test/powershell/Language/Scripting/Requires.Tests.ps1
@@ -36,6 +36,60 @@ Describe "Requires tests" -Tags "CI" {
             { $ps.AddScript("#requires").Invoke(@(), $settings) } | Should -Not -Throw
         }
     }
+
+    Context "Version checks" {
+        BeforeAll {
+            $currentVersion = $PSVersionTable.PSVersion
+
+            $powerShellVersions = "1.0", "2.0", "3.0", "4.0", "5.0", "5.1", "6.0", "6.1", "6.2", "7.0"
+            $latestVersion = [version]($powerShellVersions | Sort-Object -Descending -Top 1)
+            $nonExistingMinor = "$($latestVersion.Major).$($latestVersion.Minor + 1)"
+            $nonExistingMajor = "$($latestVersion.Major + 1).0"
+
+            foreach ($version in ($powerShellVersions + $nonExistingMinor + $nonExistingMajor)) {
+                $filePath = Join-Path -Path $TestDrive -ChildPath "$version.ps1"
+                $null = New-Item -Path $filePath -Value "#requires -version $version"
+            }
+
+            $filesSuccessTestCase = foreach ($version in $powerShellVersions) {
+                @{
+                    Name = "Check for version $version"
+                    File = Join-Path -Path $TestDrive -ChildPath "$version.ps1"
+                    Version = $version
+                }
+            }
+
+            $filesFailTestCase = foreach ($version in @($nonExistingMinor) + @($nonExistingMajor)) {
+                @{
+                    Name = "Check for version $version"
+                    File = Join-Path -Path $TestDrive -ChildPath "$version.ps1"
+                }
+            }
+        }
+
+        It "<Name>" -TestCase $filesSuccessTestCase {
+            param(
+                $Name,
+                $File,
+                $Version
+            )
+
+            if ($currentVersion -notmatch '^7' -and $Version -match '^7') {
+                Set-ItResult -Skipped -Because "Test not valid for current version - $currentVersion and test version = $Version"
+            }
+
+            { . $File } | Should -Not -Throw
+        }
+
+        It "<Name>" -TestCase $filesFailTestCase {
+            param(
+                $Name,
+                $File
+            )
+
+            { . $File } | Should -Throw -ExceptionType ([System.Management.Automation.ScriptRequiresException])
+        }
+    }
 }
 
 Describe "#requires -Modules" -Tags "CI" {