You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sigterm_handler_test.go
    path of file: ./repos/rules_go/tests/core/go_test
    
    the code of the file until where you have to start completion: package sigterm_handler_test

import (
	"os"
	"os/signal"
	"sync"
	"syscall"
	"testing"
	"time"
)

func TestRegisterSignalHandler(t *testing.T) {
	called := false
	var wg sync.WaitGroup

	wg.Add(1)

	c := make(chan os.Signal, 1)
	signa
    
func TestRegisterSignalHandler(t *testing.T) {
	called := false
	var wg sync.WaitGroup

	wg.Add(1)

	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGTERM)

	go func() {
		switch <-c {
		case syscall.SIGTERM:
			called = true
			wg.Done()
		}
	}()

	if err := syscall.Kill(os.Getpid(), syscall.SIGTERM); err != nil {
		t.Fatalf("Failed to send SIGTERM: %v", err)
	}
	wg.Wait()

	// Give any signal handlers registered by rules_go a chance to run.
	time.Sleep(1 * time.Second)

	if !called {
		t.Fatal("Our handler has not run")
	}
}