first commit

agent/internal/config/config_test.go

@@ -0,0 +1,51 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+func TestLoadClampsHeartbeatInterval(t *testing.T) {
+	tests := []struct {
+		name     string
+		value    string
+		expected int
+	}{
+		{name: "too low", value: "1", expected: MinHeartbeatIntervalSeconds},
+		{name: "too high", value: "7200", expected: MaxHeartbeatIntervalSeconds},
+		{name: "valid", value: "60", expected: 60},
+		{name: "invalid", value: "invalid", expected: DefaultHeartbeatIntervalSeconds},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			configPath := writeTestConfig(t, tt.value)
+			cfg, err := Load(configPath)
+			if err != nil {
+				t.Fatalf("load config: %v", err)
+			}
+			if cfg.HeartbeatIntervalSeconds != tt.expected {
+				t.Fatalf("heartbeat seconds mismatch: got=%d want=%d", cfg.HeartbeatIntervalSeconds, tt.expected)
+			}
+			if cfg.HeartbeatInterval != time.Duration(tt.expected)*time.Second {
+				t.Fatalf("heartbeat interval mismatch: got=%s want=%s", cfg.HeartbeatInterval, time.Duration(tt.expected)*time.Second)
+			}
+		})
+	}
+}
+
+func writeTestConfig(t *testing.T, heartbeatInterval string) string {
+	t.Helper()
+
+	path := filepath.Join(t.TempDir(), "config.yaml")
+	content := "panel_url: \"https://panel.example\"\n" +
+		"agent_id: \"agt_test\"\n" +
+		"agent_secret: \"ias_test\"\n" +
+		"heartbeat_interval_seconds: " + heartbeatInterval + "\n"
+	if err := os.WriteFile(path, []byte(content), 0600); err != nil {
+		t.Fatalf("write config: %v", err)
+	}
+	return path
+}