extend basic test

tests/basic-functionality.spec.ps1

@@ -3,12 +3,31 @@
 $id = WSL-Install
 
 try {
+
+  # Run command through installer
   WSL-Launch $id "nixos-version"
   if ($LASTEXITCODE -ne 0) {
-    throw "Failed to run nixos-version inside the container"
+    throw "Failed to run a command through the installer"
+  }
+  # Run another command after the installer is done
+  WSL-Launch $id "true"
+  if ($LASTEXITCODE -ne 0) {
+    throw "Failed to run a second command"
+  }
+
+  # Restart the container and run a command
+  WSL-Shutdown $id
+  WSL-Launch $id "true"
+  if ($LASTEXITCODE -ne 0) {
+    throw "Failed to run command after restart"
+  }
+
+  # nixos-rebuild works at all
+  WSL-Launch $id "sudo nixos-rebuild switch"
+  if ($LASTEXITCODE -ne 0) {
+    throw "Failed to run nixos-rebuild"
   }
 
-  # TODO: WSL-Shutdown
 }
 finally {
   WSL-Uninstall($id)

tests/lib/lib_linux.ps1

@@ -24,7 +24,7 @@ function WSL-Launch([string]$id, [string]$command) {
 # TODO: WSL-CopyFile
 
 function WSL-Shutdown([string]$id) {
-  docker stop $id
+  docker restart $id # Restart instead of stop so that exec can still be used
   if ($LASTEXITCODE -ne 0) {
     throw "Failed to stop container"
   }