package collector

import "testing"

func TestCollect(t *testing.T) {
	metrics, err := Collect()
	if err != nil {
		t.Fatalf("Collect() error: %v", err)
	}
	if metrics.CPUPercent < 0 || metrics.CPUPercent > 100 {
		t.Errorf("CPU percent out of range: %f", metrics.CPUPercent)
	}
	if metrics.MemoryTotal == 0 {
		t.Error("MemoryTotal should not be 0")
	}
	if len(metrics.Disks) == 0 {
		t.Error("Expected at least one disk")
	}
}