add integration tests for the diff feature

tests/test_github.py

@@ -0,0 +1,36 @@
+import subprocess
+
+import conftest
+
+from nix_update import main
+
+
+def test_main(helpers: conftest.Helpers) -> None:
+    with helpers.testpkgs(init_git=True) as path:
+        main(["--file", str(path), "--commit", "github"])
+        version = subprocess.run(
+            [
+                "nix",
+                "eval",
+                "--raw",
+                "--extra-experimental-features",
+                "nix-command",
+                "-f",
+                path,
+                "github.version",
+            ],
+            check=True,
+            text=True,
+            stdout=subprocess.PIPE,
+        ).stdout.strip()
+        assert version >= "8.5.2"
+        commit = subprocess.run(
+            ["git", "-C", path, "log", "-1"],
+            text=True,
+            stdout=subprocess.PIPE,
+            check=True,
+        ).stdout.strip()
+        print(commit)
+        assert version in commit
+        assert "github" in commit
+        assert "https://github.com/sharkdp/fd/compare/v8.0.0...v" in commit

tests/test_gitlab.py

@@ -0,0 +1,38 @@
+import subprocess
+
+import conftest
+
+from nix_update import main
+
+
+def test_main(helpers: conftest.Helpers) -> None:
+    with helpers.testpkgs(init_git=True) as path:
+        main(["--file", str(path), "--commit", "gitlab"])
+        version = subprocess.run(
+            [
+                "nix",
+                "eval",
+                "--raw",
+                "--extra-experimental-features",
+                "nix-command",
+                "-f",
+                path,
+                "gitlab.version",
+            ],
+            check=True,
+            text=True,
+            stdout=subprocess.PIPE,
+        ).stdout.strip()
+        assert version >= "0.22.0"
+        commit = subprocess.run(
+            ["git", "-C", path, "log", "-1"],
+            text=True,
+            stdout=subprocess.PIPE,
+            check=True,
+        ).stdout.strip()
+        print(commit)
+        assert version in commit
+        assert "gitlab" in commit
+        assert (
+            "https://gitlab.gnome.org/world/phosh/phosh/-/compare/v0.20.0...v" in commit
+        )

tests/testpkgs/default.nix

@@ -1,6 +1,8 @@
 { pkgs ? import <nixpkgs> {} }:
 {
   crate = pkgs.callPackage ./crate.nix {};
+  github = pkgs.callPackage ./github.nix {};
+  gitlab = pkgs.callPackage ./gitlab.nix {};
   pypi = pkgs.python3.pkgs.callPackage ./pypi.nix {};
   sourcehut = pkgs.python3.pkgs.callPackage ./sourcehut.nix {};
   savanna = pkgs.python3.pkgs.callPackage ./savanna.nix {};

tests/testpkgs/github.nix

@@ -0,0 +1,13 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "fd";
+  version = "8.0.0";
+
+  src = fetchFromGitHub {
+    owner = "sharkdp";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+  };
+}

tests/testpkgs/gitlab.nix

@@ -0,0 +1,15 @@
+{ stdenv, fetchFromGitLab }:
+
+stdenv.mkDerivation rec {
+  pname = "phosh";
+  version = "0.20.0";
+
+  src = fetchFromGitLab {
+    domain = "gitlab.gnome.org";
+    group = "world";
+    owner = "phosh";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+  };
+}