adding convert-path tests

test/powershell/Modules/Microsoft.PowerShell.Management/Convert-Path.Tests.ps1

@@ -0,0 +1,52 @@
+Describe "Convert-Path tests" -Tag CI {
+    It "Convert-Path should handle provider qualified paths" {
+        Convert-Path "FileSystem::${TESTDRIVE}" | should be "${TESTDRIVE}"
+    }
+    It "Convert-Path should return the proper path" {
+        Convert-Path "$TESTDRIVE" | Should be "$TESTDRIVE"
+    }
+    It "Convert-Path supports pipelined input" {
+        "$TESTDRIVE" | Convert-Path | Should be "$TESTDRIVE"
+    }
+    It "Convert-Path supports pipelined input by property name" {
+        get-item $TESTDRIVE | Convert-Path | Should be "$TESTDRIVE"
+    }
+    It "Convert-Path without arguments is an error" {
+        try {
+            $ps = [powershell]::Create()
+            $ps.AddCommand("Convert-Path").Invoke()
+            throw "Execution should not have reached here"
+        }
+        catch {
+            $_.fullyqualifiederrorid | should be ParameterBindingException
+        }
+    }
+    It "Convert-Path with null path is an error" {
+        try {
+            Convert-Path -path ""
+            throw "Execution should not have reached here"
+        }
+        catch {
+            $_.fullyqualifiederrorid | should be "ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.ConvertPathCommand"
+        }
+    }
+    It "Convert-Path with non-existing non-filesystem path is an error" {
+        try {
+            Convert-Path -path "env:thisvariableshouldnotexist" -ea stop
+            throw "Execution should not have reached here"
+        }
+        catch {
+            $_.fullyqualifiederrorid | should be "PathNotFound,Microsoft.PowerShell.Commands.ConvertPathCommand"
+        }
+    }
+    It "Convert-Path can handle multiple directories" {
+        $d1 = Setup -D dir1 -pass
+        $d2 = Setup -D dir2 -pass
+        $result = convert-path "${TESTDRIVE}/dir?"
+        $result.count | Should be 2
+        $result -join "," | should be (@("$d1","$d2") -join ",")
+    }
+    It "Convert-Path should return something which exists" {
+        Convert-Path $TESTDRIVE | Test-Path | should be $true
+    }
+}