Fix handling of XDG_CONFIG_HOME (#347)

cmd/root_test.go

@@ -0,0 +1,36 @@
+package cmd
+
+import (
+	"github.com/mitchellh/go-homedir"
+	"os"
+	"path/filepath"
+	"slices"
+	"testing"
+)
+
+const xdgConfigHome = "XDG_CONFIG_HOME"
+
+func assertContains(t *testing.T, array []string, element string) {
+	if !slices.Contains(array, element) {
+		t.Errorf("Expected %s to be contained in %s", element, array)
+	}
+}
+
+func TestConfigResolving(t *testing.T) {
+	t.Run("~/.config/autorestic is used if XDG_CONFIG_HOME is not set", func(t *testing.T) {
+		// Override env using testing so that env gets restored after test
+		t.Setenv(xdgConfigHome, "")
+		_ = os.Unsetenv("XDG_CONFIG_HOME")
+		configPaths := getConfigPaths()
+		homeDir, _ := homedir.Dir()
+		expectedConfigPath := filepath.Join(homeDir, ".config/autorestic")
+		assertContains(t, configPaths, expectedConfigPath)
+	})
+
+	t.Run("XDG_CONFIG_HOME is respected if set", func(t *testing.T) {
+		t.Setenv(xdgConfigHome, "/foo/bar")
+
+		configPaths := getConfigPaths()
+		assertContains(t, configPaths, filepath.Join("/", "foo", "bar", "autorestic"))
+	})
+}