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package test
import (
"net/http"
"sync"
)
// HandlerSet is a struct with a mutex that allows us to swap handlers while a test server is running
type HandlerSet struct {
mu sync.Mutex
handler http.Handler
}
// SetHandler sets the handler to `handler`
func (hs *HandlerSet) SetHandler(handler http.Handler) {
hs.mu.Lock()
hs.handler = handler
hs.mu.Unlock()
}
// ServeHTTP serves HTTP using the handler
func (hs *HandlerSet) ServeHTTP(w http.ResponseWriter, r *http.Request) {
hs.mu.Lock()
handler := hs.handler
hs.mu.Unlock()
handler.ServeHTTP(w, r)
}
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