tests/simple-nixos-mailserver: Init

These two tests kinda cover our email infrastructure.
Importantly, all new mail gets classified as spam, which is why the
tests do not really cover `rspamd`. As such things like dkim signing,
correct DNS records and so on are not actually covered.

1 files changed, 83 insertions, 0 deletions

diff --git a/tests/by-name/sn/snm-email-single-server/test.nix b/tests/by-name/sn/snm-email-single-server/test.nix
new file mode 100644
index 0000000..68c6022
--- /dev/null
+++ b/tests/by-name/sn/snm-email-single-server/test.nix
@@ -0,0 +1,83 @@
+{
+  vhack,
+  pkgs,
+  vhackPackages,
+  ...
+}: let
+  domain = "mail.server.test";
+
+  common = import ../../../common/email/functions.nix {inherit pkgs vhackPackages;};
+in
+  vhack.runTest {
+    name = "email";
+
+    serverDomains = [
+      {server = domain;}
+    ];
+
+    nodes = {
+      server = {config, ...}: {
+        systemd.tmpfiles.rules = [
+          #-      path                   mode user group -           content
+          "f     /passwords/alice        777  root root  -           alice-password"
+          "f     /passwords/bob          777  root root  -           bob-password"
+        ];
+
+        vhack = {
+          mail = {
+            enable = true;
+            fqdn = domain;
+            domains = [
+              domain
+            ];
+            accounts = {
+              "alice@${domain}" = {
+                passwordFile = "/passwords/alice";
+              };
+              "bob@${domain}" = {
+                passwordFile = "/passwords/bob";
+              };
+            };
+          };
+        };
+      };
+
+      alice = common.mkUser "alice" domain;
+      bob = common.mkUser "bob" domain;
+    };
+
+    services = [
+      {server = "postfix.service";}
+    ];
+
+    ports = [
+      {server = 993;} # imap
+      {server = 465;} # smtp
+    ];
+
+    testScript = {...}:
+    # Python
+    ''
+      with subtest("Both start without mail"):
+        alice.succeed("sudo -u alice ${common.scripts.expectNoNewMail}")
+        bob.succeed("sudo -u bob ${common.scripts.expectNoNewMail}")
+
+      with subtest("Alice can send an email to bob"):
+        alice.succeed("sudo -u alice ${pkgs.writeShellScript "alice-send" ''
+        set -xe
+
+        cat << EOF | msmtp --debug --account alice bob@${domain} >&2
+        Hi Bob!
+
+        This is an email.
+        It contains a subject and a body.
+
+        ALICE
+        EOF
+      ''}")
+        bob.succeed("sudo -u bob ${common.scripts.expectNewMail}")
+
+      server.copy_from_machine("/var/lib/", "server")
+      bob.copy_from_machine("/home/bob/mail", "bob")
+    '';
+  }