add test for envfs

tests/envfs/envfs.Tests.ps1

@@ -0,0 +1,37 @@
+BeforeAll {
+  . $PSScriptRoot/../lib/lib.ps1
+}
+
+Describe "envfs" {
+  BeforeAll {
+    $distro = [Distro]::new()
+  }
+
+  It "should install" {
+    $distro.InstallConfig("$PSScriptRoot/envfs.nix", "switch")
+  }
+
+  It "should not break the distro" {
+    $distro.Launch("true")
+    $LASTEXITCODE | Should -Be 0
+  }
+
+  It "should allow running scripts with #!/bin/python3 instead of #!/usr/bin/env python3" {
+    $distro.Launch("echo '#!/bin/python3' > ~/test.py")
+    $LASTEXITCODE | Should -Be 0
+
+    $distro.Launch("echo print(`"hello`") >> ~/test.py")
+    $LASTEXITCODE | Should -Be 0
+
+    $distro.Launch("chmod +x ~/test.py")
+    $LASTEXITCODE | Should -Be 0
+
+    $output = $distro.Launch("~/test.py") | Select-Object -Last 1
+    $output | Should -BeExactly "hello"
+    $LASTEXITCODE | Should -Be 0
+  }
+
+  AfterAll {
+    $distro.Uninstall()
+  }
+}

tests/envfs/envfs.nix

@@ -0,0 +1,15 @@
+{ lib, pkgs, ... }:
+with lib; {
+  imports = [
+    <nixos-wsl/modules>
+  ];
+
+  config = {
+    wsl.enable = true;
+    services.envfs.enable = true;
+
+    environment.systemPackages = [
+      pkgs.python3
+    ];
+  };
+}