From fb994d3200837ce5706d646f320eebb6e5312171 Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Wed, 12 May 2021 09:56:57 -0400
Subject: [PATCH] Test the Nix package version

---
 nix/tahoe-lafs.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nix/tahoe-lafs.nix b/nix/tahoe-lafs.nix
index 8370b0943..55804ff2b 100644
--- a/nix/tahoe-lafs.nix
+++ b/nix/tahoe-lafs.nix
@@ -114,6 +114,13 @@ EOF
   ];
 
   checkPhase = ''
+    if ! $out/bin/tahoe --version | grep --fixed-strings "${version}"; then
+      echo "Package version:"
+      $out/bin/tahoe --version
+      echo "Did not contain expected:"
+      echo "${version}"
+      exit 1
+    fi
     ${python}/bin/python -m twisted.trial -j $NIX_BUILD_CORES allmydata
   '';
 }