From a759fc28f715f4c7523a830314e3ccf09e2f0d70 Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Sun, 8 May 2022 16:36:28 -0600
Subject: [PATCH] Add test target to Makefile to run full integration tests

---
 Makefile        | 33 +++++++++++----------------------
 default.nix     |  4 +++-
 srv/default.nix |  8 ++++++++
 test.sh         | 23 +++++++++++++++++++++++
 4 files changed, 45 insertions(+), 23 deletions(-)
 create mode 100644 test.sh

diff --git a/Makefile b/Makefile
index d074a3d..de7e4f1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,34 +1,23 @@
-SKIP_SERVICES = []
 
-all:
-	nix-build -A entrypoint \
-		--arg baseConfig '(import ./config.nix)' \
-		--arg baseSkipServices '${SKIP_SERVICES}'
-
-run: all
-	./result
+CONFIG = ./config.nix
 
-all.prod:
+entrypoint:
 	nix-build -A entrypoint \
-		--arg baseConfig '(import ./prod.config.nix)' \
-		--arg baseSkipServices '${SKIP_SERVICES}'
+		--arg baseConfig '(import ${CONFIG})'
 
-run.prod: all.prod
+install:
+	nix-build -A install --arg baseConfig '(import ${CONFIG})'
 	./result
 
-install.prod:
-	nix-build -A install --arg baseConfig '(import ./prod.config.nix)'
-	./result
+test:
+	$$(nix-build --no-out-link -A pkgs.bash)/bin/bash test.sh
+	@if [ $$? == 0 ]; then echo "TESTS PASSED!"; else echo "TESTS FAILED!"; fi
 
 srv.shell:
-	nix-shell -A srv.shell --command 'cd srv; return'
-
-srv.shell.prod:
-	nix-shell -A srv.shell --arg baseConfig '(import ./prod.config.nix)' --command 'cd srv; return'
-
-static.shell:
-	nix-shell -A static.shell --command 'cd static; return'
+	nix-shell -A srv.shell --arg baseConfig '(import ${CONFIG})' \
+		--command 'cd srv; return'
 
+# TODO static is on the way out, these aren't well supported
 static.serve:
 	nix-shell -A static.shell --run 'cd static; static-serve'
 
diff --git a/default.nix b/default.nix
index 78a86fd..8d20c38 100644
--- a/default.nix
+++ b/default.nix
@@ -1,6 +1,6 @@
 {
 
-    pkgs ? import (fetchTarball {
+    pkgsArg ? import (fetchTarball {
         name = "nixpkgs-21-05";
         url = "https://github.com/NixOS/nixpkgs/archive/7e9b0dff974c89e070da1ad85713ff3c20b0ca97.tar.gz";
         sha256 = "1ckzhh24mgz6jd1xhfgx0i9mijk6xjqxwsshnvq789xsavrmsc36";
@@ -11,6 +11,8 @@
 
 }: rec {
 
+    pkgs = pkgsArg;
+
     config = baseConfig // {
         redisListenPath = "${config.runDir}/redis";
     };
diff --git a/srv/default.nix b/srv/default.nix
index 5510744..df54d84 100644
--- a/srv/default.nix
+++ b/srv/default.nix
@@ -63,4 +63,12 @@
           cd src
         '';
     };
+
+    test = stdenv.mkDerivation {
+        name = "mediocre-blog-srv-test";
+        buildInputs = [ go ];
+        shellHook = ''
+          source ${init}
+        '';
+    };
 }
diff --git a/test.sh b/test.sh
new file mode 100644
index 0000000..e204f91
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,23 @@
+
+test_dir="$(mktemp -d)"
+
+mkdir -p "$test_dir"/run
+mkdir -p "$test_dir"/data
+
+test_cfg="(import ./config.nix) // {
+    runDir=\"${test_dir}/run\";
+    dataDir=\"${test_dir}/data\";
+}"
+
+$(nix-build --no-out-link -A entrypoint \
+    --arg baseConfig "$test_cfg" \
+    --arg baseSkipServices '["srv" "static"]') &
+
+trap "kill $!; wait; rm -rf $test_dir" EXIT
+
+# TODO there's a race condition here, we should wait until redis is definitely
+# listening before commencing the tests.
+
+nix-shell -A srv.test \
+    --arg baseConfig "$test_cfg"  \
+    --run "cd srv/src && go test ./... -count=1 -tags integration"