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package http
import (
"fmt"
"net"
"testing"
"unsafe"
)
func TestCache(t *testing.T) {
c := NewCache(10)
for i := 0; i < 100; i++ {
ip := net.ParseIP(fmt.Sprintf("192.0.2.%d", i))
r := &Response{IP: ip}
fmt.Println(unsafe.Sizeof(r))
c.Set(ip, r)
}
fmt.Println(len(c.entries))
fmt.Println(len(c.keys))
}
func TestCacheCapacity(t *testing.T) {
var tests = []struct {
addCount, capacity, size int
}{
{1, 0, 0},
{1, 2, 1},
{2, 2, 2},
{3, 2, 2},
}
for i, tt := range tests {
c := NewCache(tt.capacity)
var responses []*Response
for i := 0; i < tt.addCount; i++ {
ip := net.ParseIP(fmt.Sprintf("192.0.2.%d", i))
r := &Response{IP: ip}
responses = append(responses, r)
c.Set(ip, r)
}
if got := len(c.entries); got != tt.size {
t.Errorf("#%d: len(entries) = %d, want %d", i, got, tt.size)
}
if tt.capacity > 0 && tt.addCount > tt.capacity && tt.capacity == tt.size {
lastAdded := responses[tt.addCount-1]
if _, ok := c.Get(lastAdded.IP); !ok {
t.Errorf("#%d: Get(%s) = (_, %t), want (_, %t)", i, lastAdded.IP.String(), ok, !ok)
}
firstAdded := responses[0]
if _, ok := c.Get(firstAdded.IP); ok {
t.Errorf("#%d: Get(%s) = (_, %t), want (_, %t)", i, firstAdded.IP.String(), ok, !ok)
}
}
}
}
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