tests: add initial test framework

tests/modules/programs/git-expected.conf

@@ -0,0 +1,23 @@
+[alias]
+a1=foo
+a2=bar
+
+[commit]
+gpgSign=true
+
+[extra]
+name=value
+
+[gpg]
+program=path-to-gpg
+
+[user]
+email=user@example.org
+name=John Doe
+signingKey=00112233445566778899AABBCCDDEEFF
+
+[include]
+path = ~/path/to/config.inc
+
+[includeIf "gitdir:~/src/dir"]
+path = ~/path/to/conditional.inc

tests/modules/programs/git-with-str-extra-config-expected.conf

@@ -0,0 +1,5 @@
+This can be anything.
+
+[user]
+email=user@example.org
+name=John Doe

tests/modules/programs/git-with-str-extra-config.nix

@@ -0,0 +1,22 @@
+{ config, lib, ... }:
+
+with lib;
+
+{
+  config = {
+    programs.git = {
+      enable = true;
+      extraConfig = ''
+        This can be anything.
+      '';
+      userEmail = "user@example.org";
+      userName = "John Doe";
+    };
+
+    nmt.script = ''
+      assertFileExists home-files/.config/git/config
+      assertFileContent home-files/.config/git/config \
+        ${./git-with-str-extra-config-expected.conf}
+    '';
+  };
+}

tests/modules/programs/git.nix

@@ -0,0 +1,40 @@
+{ config, lib, ... }:
+
+with lib;
+
+{
+  config = {
+    programs.git = {
+      enable = true;
+      aliases = {
+        a1 = "foo";
+        a2 = "bar";
+      };
+      extraConfig = {
+        extra = {
+          name = "value";
+        };
+      };
+      ignores = [ "*~" "*.swp" ];
+      includes = [
+        { path = "~/path/to/config.inc"; }
+        {
+          path = "~/path/to/conditional.inc";
+          condition = "gitdir:~/src/dir";
+        }
+      ];
+      signing = {
+        gpgPath = "path-to-gpg";
+        key = "00112233445566778899AABBCCDDEEFF";
+        signByDefault = true;
+      };
+      userEmail = "user@example.org";
+      userName = "John Doe";
+    };
+
+    nmt.script = ''
+      assertFileExists home-files/.config/git/config
+      assertFileContent home-files/.config/git/config ${./git-expected.conf}
+    '';
+  };
+}