//go:build darwin && arm64 && hypervisor

package hypervisor

import (

"testing"

)

func TestMetrics(t *testing.T) {

// Skip hypervisor tests in CI environments (no nested virtualization support)

if isCI() {

t.Skip("Skipping hypervisor tests in CI environment")

}

// Reset metrics for clean test

ResetMetrics()

// Verify initial state

metrics := GetMetrics()

if metrics.VMCreated != 0 {

t.Errorf("Expected VMCreated=0, got %d", metrics.VMCreated)

}

// Create and test VM (if entitled)

vm, err := NewVM()

if err != nil {

if err.Error() == "hv: access denied (HV_DENIED) - missing entitlement 'com.apple.security.hypervisor' or insufficient privileges" {

t.Skip("Skipping metrics test: missing hypervisor entitlements")

}

t.Fatalf("Failed to create VM: %v", err)

}

defer vm.Close()

// Check VM creation was recorded

metrics = GetMetrics()

if metrics.VMCreated != 1 {

t.Errorf("Expected VMCreated=1, got %d", metrics.VMCreated)

}

if metrics.AvgVMCreateTimeNs == 0 {

t.Errorf("Expected non-zero VM create time")

}

// Test VCPU metrics

vcpu, err := vm.NewVCPU()

if err != nil {

t.Fatalf("Failed to create VCPU: %v", err)

}

defer vcpu.Close()

metrics = GetMetrics()

if metrics.VCPUCreated != 1 {

t.Errorf("Expected VCPUCreated=1, got %d", metrics.VCPUCreated)

}

// Test register operation metrics

_, err = vcpu.GetReg(RegX0)

if err != nil {

t.Fatalf("Failed to get register: %v", err)

}

metrics = GetMetrics()

if metrics.RegisterOps != 1 {

t.Errorf("Expected RegisterOps=1, got %d", metrics.RegisterOps)

}

t.Logf("Final metrics: %+v", metrics)

}