From 050885790484dfd70e22d10e8f5329082cd2cd90 Mon Sep 17 00:00:00 2001
From: Jason Fossen <JasonFossen@users.noreply.github.com>
Date: Tue, 21 Jun 2016 00:02:29 -0500
Subject: [PATCH 1/2] Basic Pester tests script to get started.

---
 Tests/7Zip4PowerShell.Tests.ps1 | 326 ++++++++++++++++++++++++++++++++
 1 file changed, 326 insertions(+)
 create mode 100644 Tests/7Zip4PowerShell.Tests.ps1

diff --git a/Tests/7Zip4PowerShell.Tests.ps1 b/Tests/7Zip4PowerShell.Tests.ps1
new file mode 100644
index 0000000..1067800
--- /dev/null
+++ b/Tests/7Zip4PowerShell.Tests.ps1
@@ -0,0 +1,326 @@
+# Pester tests for https://github.com/thoemmi/7Zip4Powershell.git
+# This script must be in the Tests folder.
+# To use, install the Pester module, run Invoke-Pester while in Tests folder.
+# Version: 1.0, Date: 20.Jun.2016
+
+#region SetupTestFiles
+# Confirm we are in the Tests folder, delete any previous temp files:
+if ($PWD.Path -notmatch '.+\\Tests$'){"ERROR: Must be in Tests folder!" ; exit }
+del -Path .\TestFiles -Force -Recurse -ErrorAction SilentlyContinue
+
+
+# Create test files to compress in .\TestFiles:
+mkdir TestFiles -ErrorAction Stop | Out-Null
+"A" * 129 | Set-Content .\TestFiles\AAA.txt -Encoding UTF8 -ErrorAction Stop
+"B" * 254 | Set-Content .\TestFiles\BBB.txt -Encoding Unicode -ErrorAction Stop
+"C" * 511 | Set-Content .\TestFiles\CCC.txt -Encoding UTF32 -ErrorAction Stop
+"D" * 513 | Set-Content .\TestFiles\DDD.txt -Encoding BigEndianUTF32 -ErrorAction Stop
+[Byte[]] ([Int32]0..255) | Set-Content .\TestFiles\111.bin -Encoding Byte -ErrorAction Stop
+(Get-Content -Path .\TestFiles\111.bin -Encoding Byte -TotalCount 67) | Add-Content .\TestFiles\111.bin -Encoding Byte -ErrorAction Stop
+#endregion SetupTestFiles
+
+
+Describe "How The 7Zip4PowerShell Module Loads" {
+    It "Loads module of type: Manifest" {
+        Get-Module -Name 7Zip4PowerShell | Remove-Module | Out-Null
+        Import-Module -Name 7Zip4Powershell -ErrorAction Stop
+        Get-Module -Name 7Zip4Powershell | Select-Object -ExpandProperty ModuleType | Should Be "Manifest"
+    }
+}
+
+
+Describe "How Compress-7Zip Compresses Files" {
+    It "Compresses AAA.txt using SevenZip to AAA.7z" {
+        Compress-7Zip -Path .\TestFiles\AAA.txt -ArchiveFileName .\TestFiles\AAA.7z -Format SevenZip -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\AAA.7z | Should Exist
+    }
+
+    It "Compresses AAA.txt using SevenZip+LZMA2 to AAA-LZMA2.7z" {
+        Compress-7Zip -Path .\TestFiles\AAA.txt -ArchiveFileName .\TestFiles\AAA-LZMA2.7z -Format SevenZip -CompressionMethod Lzma2 -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\AAA-LZMA2.7z | Should Exist
+    } 
+
+    It "Compresses BBB.txt using Zip+Deflate to BBB.zip" {
+        Compress-7Zip -Path .\TestFiles\BBB.txt -ArchiveFileName .\TestFiles\BBB.zip -Format Zip -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\BBB.zip | Should Exist
+    } 
+
+    It "Compresses BBB.txt using Zip+Deflate64 to BBB-64.zip" {
+        Compress-7Zip -Path .\TestFiles\BBB.txt -ArchiveFileName .\TestFiles\BBB-64.zip -Format Zip -CompressionMethod Deflate64 -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\BBB-64.zip | Should Exist
+    } 
+
+    It "Compresses CCC.txt using BZip2 to CCC-BZip2.bz2" {
+        Compress-7Zip -Path .\TestFiles\CCC.txt -ArchiveFileName .\TestFiles\CCC-BZip2.bz2 -Format BZip2 -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\CCC-BZip2.bz2 | Should Exist
+    } 
+
+    # FAILS: Compress-7Zip -Path .\TestFiles\CCC.txt -ArchiveFileName .\TestFiles\CCC-BZip2.bz2 -Format BZip2 -CompressionMethod BZip2
+    # Error Msg: Value does not fall within the expected range.
+
+    It "Compresses CCC.txt using Tar to CCC.tar" {
+        Compress-7Zip -Path .\TestFiles\CCC.txt -ArchiveFileName .\TestFiles\CCC.tar -Format Tar -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\CCC.tar | Should Exist
+    } 
+
+    It "Compresses CCC.txt using XZ to CCC.xz" {
+        Compress-7Zip -Path .\TestFiles\CCC.txt -ArchiveFileName .\TestFiles\CCC.xz -Format XZ -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\CCC.xz | Should Exist
+    } 
+
+    It "Compresses 111.bin using Zip+Deflate+Ultra to 111-Ultra.zip" {
+        Compress-7Zip -Path .\TestFiles\111.bin -ArchiveFileName .\TestFiles\111-Ultra.zip -Format Zip -CompressionMethod Deflate -CompressionLevel Ultra -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\111-Ultra.zip | Should Exist
+    } 
+
+    It "Compresses 111.bin using Zip+Deflate+Fast to 111-Fast.zip" {
+        Compress-7Zip -Path .\TestFiles\111.bin -ArchiveFileName .\TestFiles\111-Fast.zip -Format Zip -CompressionMethod Deflate -CompressionLevel Fast -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\111-Fast.zip | Should Exist
+    } 
+
+    It "Compresses 111.bin using SevenZip+LZMA2+Ultra to 111-Ultra.7z" {
+        Compress-7Zip -Path .\TestFiles\111.bin -ArchiveFileName .\TestFiles\111-Ultra.7z -Format SevenZip -CompressionMethod Lzma2 -CompressionLevel Ultra -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\111-Ultra.7z | Should Exist
+    } 
+
+    It "Compresses 111.bin using SevenZip+LZMA2+Fast to 111-Fast.7z" {
+        Compress-7Zip -Path .\TestFiles\111.bin -ArchiveFileName .\TestFiles\111-Fast.7z -Format SevenZip -CompressionMethod Lzma2 -CompressionLevel Fast -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\111-Fast.7z | Should Exist
+    } 
+
+    It "Compresses *.txt using Zip+Deflate to ALL.zip" {
+        dir .\TestFiles\*.txt -File | Compress-7Zip -ArchiveFileName .\TestFiles\ALL.zip -Format Zip -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\ALL.zip | Should Exist
+    } 
+
+    It "Compresses *.txt using Zip+Deflate64 to ALL-64.zip" {
+        dir .\TestFiles\*.txt -File | Compress-7Zip -ArchiveFileName .\TestFiles\ALL-64.zip -Format Zip -CompressionMethod Deflate64 -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\ALL-64.zip | Should Exist
+    } 
+
+}
+
+
+Describe "How Get-7Zip Shows Archive Details" {
+    It "Reads AAA.7z" {
+        Get-7Zip -ArchiveFileName .\TestFiles\AAA.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "AAA.txt"
+    }
+
+    It "Reads AAA-LZMA2.7z" {
+        Get-7Zip -ArchiveFileName .\TestFiles\AAA-LZMA2.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "AAA.txt"
+    }
+
+    It "Reads BBB.zip" {
+        Get-7Zip -ArchiveFileName .\TestFiles\BBB.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "BBB.txt"
+    }
+
+    It "Reads BBB-64.zip" {
+        Get-7Zip -ArchiveFileName .\TestFiles\BBB-64.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "BBB.txt"
+    }
+
+    #### Not sure if the following is supposed to work/fail (the XZ format fails same way too...):
+    #It "Reads CCC-Bzip2.bz2 Format" {
+    #    Get-7Zip -ArchiveFileName .\TestFiles\CCC-BZip2.bz2 -ErrorAction Stop |
+    #    Select-Object -ExpandProperty FileName | Should Be "CCC.txt"
+    #}
+
+    It "Reads CCC.tar Format" {
+        Get-7Zip -ArchiveFileName .\TestFiles\CCC.tar -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "CCC.txt"
+    }
+
+    It "Reads ALL.zip" {
+        $x = Get-7Zip -ArchiveFileName .\TestFiles\ALL.zip -ErrorAction Stop
+        $x.GetType().FullName | Should Be "System.Object[]"
+        $x.Count -gt 2 | Should Be $True
+        $x = $null
+    }
+
+    It "Reads ALL-64.zip" {
+        $x = Get-7Zip -ArchiveFileName .\TestFiles\ALL-64.zip -ErrorAction Stop
+        $x.GetType().FullName | Should Be "System.Object[]"
+        $x.Count -gt 2 | Should Be $True
+        $x = $null
+    }
+}
+
+
+Describe "How Get-7ZipInformation Shows Archive Details" {
+    It "Reads AAA.7z Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\AAA.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "LZMA"
+    }
+
+    It "Reads AAA-LZMA2.7z Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\AAA-LZMA2.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "LZMA2"
+    }
+
+    It "Reads AAA.7z Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\AAA.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "SevenZip"
+    }
+
+    It "Reads AAA-LZMA2.7z Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\AAA-LZMA2.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "SevenZip"
+    }
+
+    <# ######## Should the next two be failing? ###################
+    It "Reads BBB.zip Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\BBB.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "Deflate"
+    }
+
+    It "Reads BBB-64.zip Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\BBB-64.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "Deflate64"
+    }
+    ############################################################# #>
+
+    It "Reads BBB.zip Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\BBB.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "Zip"
+    }
+
+    It "Reads BBB-64.zip Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\BBB-64.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "Zip"
+    }
+
+    It "Reads CCC-Bzip2.bz2 Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\CCC-BZip2.bz2 -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "BZip2"
+    }
+
+    It "Reads CCC.tar Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\CCC.tar -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "Tar"
+    }
+
+    It "Reads 111-Ultra.zip Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Ultra.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "Zip"
+    }
+
+    It "Reads 111-Fast.zip Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Fast.zip -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "Zip"
+    }
+
+    It "Reads 111-Ultra.7z Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Ultra.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "SevenZip"
+    }
+
+    It "Reads 111-Fast.7z Format" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Fast.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Format | Should Be "SevenZip"
+    }
+
+    It "Reads 111-Ultra.7z Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Ultra.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "LZMA2"
+    }
+
+    It "Reads 111-Fast.7z Method" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\111-Fast.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should Be "LZMA2"
+    }
+
+    It "Reads ALL.zip FilesCount" {
+        $x = Get-7ZipInformation -ArchiveFileName .\TestFiles\ALL.zip -ErrorAction Stop
+        $x.FilesCount -gt 2 | Should Be $True
+        $x = $null
+    }
+
+    It "Reads ALL-64.zip FilesCount" {
+        $x = Get-7ZipInformation -ArchiveFileName .\TestFiles\ALL-64.zip -ErrorAction Stop
+        $x.FilesCount -gt 2 | Should Be $True
+        $x = $null
+    }
+}
+
+
+Describe "How Expand-7Zip Decompresses Archives" {
+    It "Expands AAA.7z" {
+        del .\TestFiles\AAA.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\AAA.7z -TargetPath .\TestFiles
+        Get-Item -Path .\TestFiles\AAA.txt -ErrorAction Stop | Should Exist
+    }
+
+    It "Expands AAA-LZMA2.7z" {
+        del .\TestFiles\AAA.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\AAA-LZMA2.7z -TargetPath .\TestFiles
+        Get-Item -Path .\TestFiles\AAA.txt -ErrorAction Stop | Should Exist
+    }
+
+
+    It "Expands BBB.zip" {
+        del .\TestFiles\BBB.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\BBB.zip -TargetPath .\TestFiles
+        Get-Item -Path .\TestFiles\BBB.txt -ErrorAction Stop | Should Exist
+    }
+
+    It "Expands BBB-64.zip" {
+        del .\TestFiles\BBB.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\BBB-64.zip -TargetPath .\TestFiles
+        Get-Item -Path .\TestFiles\BBB.txt -ErrorAction Stop | Should Exist
+    }
+
+    It "Expands ALL.zip" {
+        del .\TestFiles\*.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\ALL.zip -TargetPath .\TestFiles
+        (dir .\TestFiles\*.txt).count -gt 2 | Should Be $true
+    }
+
+    It "Expands ALL-64.zip" {
+        del .\TestFiles\*.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\ALL-64.zip -TargetPath .\TestFiles
+        (dir .\TestFiles\*.txt).count -gt 2 | Should Be $true
+    }
+
+
+}
+
+
+Describe "How The Built-In Expand-Archive Interoperates" {
+    # Zip format with Deflate (but not Deflate64) should be accessible to built-in Expand-Archive on PoSh 5.0+
+    It "Allows Expand-Archive to read Zip+Deflate BBB.zip" {
+        If ($PSVersionTable.PSVersion.Major -ge 5)
+        {   
+            del .\TestFiles\BBB.txt -ErrorAction SilentlyContinue
+            Expand-Archive -Path .\TestFiles\BBB.zip -DestinationPath .\TestFiles -Force -ErrorAction Stop
+            Get-Item .\TestFiles\BBB.txt | Should Exist
+        } 
+        Else 
+        { $True | Should Be $True } 
+    }
+
+    It "Allows Expand-Archive to read Zip+Deflate+Ultra 111-Ultra.zip" {
+        If ($PSVersionTable.PSVersion.Major -ge 5)
+        {   
+            del .\TestFiles\111.bin -ErrorAction SilentlyContinue
+            Expand-Archive -Path .\TestFiles\111-Ultra.zip -DestinationPath .\TestFiles -Force -ErrorAction Stop
+            Get-Item .\TestFiles\111.bin | Should Exist
+        } 
+        Else 
+        { $True | Should Be $True } 
+    }
+
+
+}
+
+
+#region CleanUp
+
+del -Path .\TestFiles -Force -Recurse -ErrorAction SilentlyContinue
+
+#endregion CleanUp
+
+
+

From 850b5819f0a2e42492db0f18fdb2bafd40a15e91 Mon Sep 17 00:00:00 2001
From: Jason Fossen <JasonFossen@users.noreply.github.com>
Date: Wed, 22 Jun 2016 07:26:06 -0500
Subject: [PATCH 2/2] Added more Pester tests for encrypted archives.

---
 Tests/7Zip4PowerShell.Tests.ps1 | 113 ++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)

diff --git a/Tests/7Zip4PowerShell.Tests.ps1 b/Tests/7Zip4PowerShell.Tests.ps1
index 1067800..6b546a5 100644
--- a/Tests/7Zip4PowerShell.Tests.ps1
+++ b/Tests/7Zip4PowerShell.Tests.ps1
@@ -98,6 +98,16 @@ Describe "How Compress-7Zip Compresses Files" {
         Get-Item .\TestFiles\ALL-64.zip | Should Exist
     } 
 
+    It "Encrypts DDD.txt using SevenZip+LZMA2+AES to PlainFileNames.7z" {
+        Compress-7Zip -Path .\TestFiles\DDD.txt -ArchiveFileName .\TestFiles\PlainFileNames.7z -Format SevenZip -Password "DasP@sswurd" -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\PlainFileNames.7z | Should Exist
+    } 
+
+    It "Encrypts DDD.txt using SevenZip+LZMA2+AES to EncryptedFileNames.7z" {
+        Compress-7Zip -Path .\TestFiles\DDD.txt -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -Format SevenZip -Password "DasP@sswurd" -EncryptFilenames -ErrorAction Stop | Out-Null
+        Get-Item .\TestFiles\EncryptedFileNames.7z | Should Exist
+    } 
+
 }
 
 
@@ -146,6 +156,35 @@ Describe "How Get-7Zip Shows Archive Details" {
         $x.Count -gt 2 | Should Be $True
         $x = $null
     }
+
+    It "Reads PlainFileNames.7z with Correct Password" {
+        Get-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -Password "DasP@sswurd" -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "DDD.txt"
+    }
+
+    It "Reads PlainFileNames.7z with Incorrect Password" {
+        Get-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -Password "WrongPassword" -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "DDD.txt"
+    }
+
+    It "Reads PlainFileNames.7z with No Password" {
+        Get-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "DDD.txt"
+    }
+
+    It "Reads EncryptedFileNames.7z with Correct Password" {
+        Get-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -Password "DasP@sswurd" -ErrorAction Stop |
+        Select-Object -ExpandProperty FileName | Should Be "DDD.txt"
+    }
+
+    It "Fails to read EncryptedFileNames.7z with Incorrect Password" {
+        { Get-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -Password "WrongPassword" } | Should Throw
+    }
+
+    It "Fails to read EncryptedFileNames.7z with No Password" {
+        { Get-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z } | Should Throw
+    }
+
 }
 
 
@@ -243,6 +282,35 @@ Describe "How Get-7ZipInformation Shows Archive Details" {
         $x.FilesCount -gt 2 | Should Be $True
         $x = $null
     }
+
+    It "Reads PlainFileNames.7z with Correct Password" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\PlainFileNames.7z -Password "DasP@sswurd" -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should BeLike "*AES"
+    }
+
+    It "Reads PlainFileNames.7z with Incorrect Password" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\PlainFileNames.7z -Password "WrongPassword" -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should BeLike "*AES"
+    }
+
+    It "Reads PlainFileNames.7z with No Password" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\PlainFileNames.7z -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should BeLike "*AES"
+    }
+
+    It "Reads EncryptedFileNames.7z with Correct Password" {
+        Get-7ZipInformation -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -Password "DasP@sswurd" -ErrorAction Stop |
+        Select-Object -ExpandProperty Method | Should BeLike "*AES"
+    }
+
+    It "Fails to read EncryptedFileNames.7z with Incorrect Password" {
+        { Get-7ZipInformation -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -Password "WrongPassword" } | Should Throw
+    }
+
+    It "Fails to read EncryptedFileNames.7z with No Password" {
+        { Get-7ZipInformation -ArchiveFileName .\TestFiles\EncryptedFileNames.7z } | Should Throw
+    }
+
 }
 
 
@@ -284,6 +352,51 @@ Describe "How Expand-7Zip Decompresses Archives" {
         (dir .\TestFiles\*.txt).count -gt 2 | Should Be $true
     }
 
+    It "Expands PlainFileNames.7z with Correct Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -TargetPath .\TestFiles -Password "DasP@sswurd" -ErrorAction Stop
+        Get-Item -Path .\TestFiles\DDD.txt -ErrorAction Stop | Should Exist 
+        Get-Content -Path .\TestFiles\DDD.txt | Should BeLike "*DDDDDDDDDDDDDDDDDDDDDDDDDDDDDD*"
+    }
+
+    It "Expands EncryptedFileNames.7z with Correct Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        Expand-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -TargetPath .\TestFiles -Password "DasP@sswurd" -ErrorAction Stop
+        Get-Item -Path .\TestFiles\DDD.txt -ErrorAction Stop | Should Exist 
+        Get-Content -Path .\TestFiles\DDD.txt | Should BeLike "*DDDDDDDDDDDDDDDDDDDDDDDDDDDDDD*"
+    }
+
+    It "Fails to expand PlainFileNames.7z with Incorrect Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        ## Pester doesn't catch the following exception, not sure if this is module's or Pester's fault:
+        #{ Expand-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -TargetPath .\TestFiles -Password "WrongPassword" -ErrorAction SilentlyContinue } | Should Throw 
+        Expand-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -TargetPath .\TestFiles -Password "WrongPassword" -ErrorAction SilentlyContinue
+        $pwd.path + "\TestFiles\DDD.txt" | Should Not Exist  
+    }
+
+    It "Fails to expand PlainFileNames.7z with No Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        ## Pester doesn't catch the following exception, not sure if this is module's or Pester's fault:
+        #{ Expand-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -TargetPath .\TestFiles -ErrorAction SilentlyContinue } | Should Throw 
+        Expand-7Zip -ArchiveFileName .\TestFiles\PlainFileNames.7z -TargetPath .\TestFiles -ErrorAction SilentlyContinue
+        $pwd.path + "\TestFiles\DDD.txt" | Should Not Exist  
+    }
+
+    It "Fails to expand EncryptedFileNames.7z with Incorrect Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        ## Pester doesn't catch the following exception, not sure if this is module's or Pester's fault:
+        #{ Expand-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -TargetPath .\TestFiles -Password "WrongPassword" -ErrorAction SilentlyContinue } | Should Throw 
+        Expand-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -TargetPath .\TestFiles -Password "WrongPassword" -ErrorAction SilentlyContinue
+        $pwd.path + "\TestFiles\DDD.txt" | Should Not Exist 
+    }
+
+    It "Fails to expand EncryptedFileNames.7z with No Password" {
+        del .\TestFiles\DDD.txt -ErrorAction SilentlyContinue
+        ## Pester doesn't catch the following exception, not sure if this is module's or Pester's fault:
+        #{ Expand-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -TargetPath .\TestFiles } | Should Throw 
+        Expand-7Zip -ArchiveFileName .\TestFiles\EncryptedFileNames.7z -TargetPath .\TestFiles -ErrorAction SilentlyContinue
+        $pwd.path + "\TestFiles\DDD.txt" | Should Not Exist 
+    }
 
 }