config: Add parsing test

config_test.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"reflect"
+	"testing"
+)
+
+func TestReadConfig(t *testing.T) {
+	configContent := `
+# http listen address
+http-address :8080
+# Log level (either debug, info, warning, error)
+log-level info
+# Optionally protect with HTTP basic authentication
+user webhookUser
+password webhookPass
+
+labels {
+    order "severity,instance"
+
+    severity "critical" {
+        priority 5
+        tags "rotating_light"
+    }
+
+    severity "info" {
+        priority 1
+    }
+
+    instance "example.com" {
+        tags "computer,example"
+    }
+}
+
+ntfy {
+    # URL of the ntfy topic - required
+    topic https://ntfy.sh/alertmanager-alerts
+    # ntfy access control (https://ntfy.sh/docs/config/#access-control)
+    user user
+    password pass
+}
+`
+
+	expectedCfg := &config{
+		HTTPAddress: ":8080", LogLevel: "info", User: "webhookUser", Password: "webhookPass",
+		ntfy: ntfyConfig{Topic: "https://ntfy.sh/alertmanager-alerts", User: "user", Password: "pass"},
+		labels: labels{Order: []string{"severity", "instance"},
+			Label: map[string]labelConfig{
+				"severity:critical":    {Priority: "5", Tags: []string{"rotating_light"}},
+				"severity:info":        {Priority: "1"},
+				"instance:example.com": {Tags: []string{"computer", "example"}}}}}
+
+	configPath := filepath.Join(t.TempDir(), "config")
+	err := os.WriteFile(configPath, []byte(configContent), 0600)
+	if err != nil {
+		t.Errorf("failed to write config file: %v", err)
+	}
+
+	cfg, err := readConfig(configPath)
+	if err != nil {
+		t.Errorf("failed to read config file: %v", err)
+	}
+
+	if !reflect.DeepEqual(cfg, expectedCfg) {
+		t.Errorf("expected: %v, got %v", expectedCfg, cfg)
+	}
+}