primeiro commit

internal/config/config_test.go

@@ -0,0 +1,90 @@
+package config_test
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"statuspanel/internal/config"
+)
+
+func TestLoad(t *testing.T) {
+	t.Run("loads valid yaml with defaults", func(t *testing.T) {
+		path := writeConfig(t, `
+interface: eth0
+dns:
+  server: 1.1.1.1
+  domain: example.com
+targets:
+  - name: router
+    address: 192.0.2.1
+`)
+
+		cfg, err := config.Load(context.Background(), path)
+		if err != nil {
+			t.Fatalf("Load() error = %v", err)
+		}
+		if cfg.Interface != "eth0" {
+			t.Fatalf("Interface = %q, want eth0", cfg.Interface)
+		}
+		if cfg.Refresh.Duration != 2*time.Second {
+			t.Fatalf("Refresh = %v, want 2s", cfg.Refresh.Duration)
+		}
+		if cfg.Ping.Timeout.Duration != time.Second {
+			t.Fatalf("Ping timeout = %v, want 1s", cfg.Ping.Timeout.Duration)
+		}
+	})
+
+	t.Run("rejects missing required values", func(t *testing.T) {
+		path := writeConfig(t, `refresh: 1s`)
+
+		_, err := config.Load(context.Background(), path)
+		if err == nil {
+			t.Fatal("Load() error = nil, want validation error")
+		}
+		for _, want := range []string{"interface is required", "dns.server is required", "dns.domain is required"} {
+			if !strings.Contains(err.Error(), want) {
+				t.Fatalf("Load() error = %q, want containing %q", err, want)
+			}
+		}
+	})
+}
+
+func TestDurationUnmarshalYAML(t *testing.T) {
+	path := writeConfig(t, `
+interface: eth0
+refresh: 500ms
+dns:
+  server: 1.1.1.1
+  domain: example.com
+  timeout: 250ms
+ping:
+  timeout: 750ms
+`)
+
+	cfg, err := config.Load(context.Background(), path)
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	if cfg.Refresh.Duration != 500*time.Millisecond {
+		t.Fatalf("Refresh = %v, want 500ms", cfg.Refresh.Duration)
+	}
+	if cfg.DNS.Timeout.Duration != 250*time.Millisecond {
+		t.Fatalf("DNS timeout = %v, want 250ms", cfg.DNS.Timeout.Duration)
+	}
+	if cfg.Ping.Timeout.Duration != 750*time.Millisecond {
+		t.Fatalf("Ping timeout = %v, want 750ms", cfg.Ping.Timeout.Duration)
+	}
+}
+
+func writeConfig(t *testing.T, contents string) string {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "statuspanel.yaml")
+	if err := os.WriteFile(path, []byte(contents), 0o600); err != nil {
+		t.Fatalf("writing config: %v", err)
+	}
+	return path
+}