From e48e27fb523189d1652d53a8a78c7a5e976ea6b9 Mon Sep 17 00:00:00 2001
From: Sven van Heugten <sven@memcmp.org>
Date: Mon, 2 Mar 2026 20:06:53 +0100
Subject: [PATCH] Add helper modules for bats

According to these instructions:
https://bats-core.readthedocs.io/en/stable/tutorial.html#quick-installation
---
 .gitmodules                    | 9 +++++++++
 README.md                      | 6 ++++++
 default.nix                    | 4 ++--
 test/git-check-assertions.bats | 6 +++++-
 test/test_helper/bats-assert   | 1 +
 test/test_helper/bats-file     | 1 +
 test/test_helper/bats-support  | 1 +
 7 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 .gitmodules
 create mode 160000 test/test_helper/bats-assert
 create mode 160000 test/test_helper/bats-file
 create mode 160000 test/test_helper/bats-support

diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..9ec278b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,9 @@
+[submodule "test/test_helper/bats-support"]
+	path = test/test_helper/bats-support
+	url = https://github.com/bats-core/bats-support.git
+[submodule "test/test_helper/bats-assert"]
+	path = test/test_helper/bats-assert
+	url = https://github.com/bats-core/bats-assert.git
+[submodule "test/test_helper/bats-file"]
+	path = test/test_helper/bats-file
+	url = https://github.com/bats-core/bats-file.git
diff --git a/README.md b/README.md
index 0b302ca..01c4cb6 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,12 @@ You include a small bash script inside your commit messages, and `git-check-asse
 
 ⚠️ Only run this on repositories and branches that you trust, since the `bash` scripts in the commit messages can do whatever they want.
 
+## Building
+
+```bash
+nix build .?submodules=1
+```
+
 ## Examples of commit messages
 
 Assert that a commit builds:
diff --git a/default.nix b/default.nix
index ecb1f69..47212a6 100644
--- a/default.nix
+++ b/default.nix
@@ -20,8 +20,8 @@ resholve.mkDerivation {
   src = fs.toSource {
     root = ./.;
     fileset = fs.unions [
-      ./bin/git-check-assertions
-      ./test/git-check-assertions.bats
+      ./bin
+      ./test
     ];
   };
 
diff --git a/test/git-check-assertions.bats b/test/git-check-assertions.bats
index 8371aea..8de6cf7 100755
--- a/test/git-check-assertions.bats
+++ b/test/git-check-assertions.bats
@@ -1,10 +1,14 @@
 #!/usr/bin/env bats
 
 setup() {
+  load 'test_helper/bats-support/load'
+  load 'test_helper/bats-assert/load'
+
   DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )"
   PATH="$DIR/../bin:$PATH"
 }
 
 @test "can run" {
-  git-check-assertions
+  run git-check-assertions
+  assert_success
 }
diff --git a/test/test_helper/bats-assert b/test/test_helper/bats-assert
new file mode 160000
index 0000000..697471b
--- /dev/null
+++ b/test/test_helper/bats-assert
@@ -0,0 +1 @@
+Subproject commit 697471b7a89d3ab38571f38c6c7c4b460d1f5e35
diff --git a/test/test_helper/bats-file b/test/test_helper/bats-file
new file mode 160000
index 0000000..6bee58b
--- /dev/null
+++ b/test/test_helper/bats-file
@@ -0,0 +1 @@
+Subproject commit 6bee58bec7c2f4aed1a7425ccd4bdc42b4a84599
diff --git a/test/test_helper/bats-support b/test/test_helper/bats-support
new file mode 160000
index 0000000..0954abb
--- /dev/null
+++ b/test/test_helper/bats-support
@@ -0,0 +1 @@
+Subproject commit 0954abb9925cad550424cebca2b99255d4eabe96