mirror of https://github.com/mpolden/echoip
88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package http
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import (
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"fmt"
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"net"
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"testing"
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)
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func TestCacheCapacity(t *testing.T) {
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var tests = []struct {
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addCount, capacity, size int
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evictions uint64
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}{
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{1, 0, 0, 0},
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{1, 2, 1, 0},
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{2, 2, 2, 0},
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{3, 2, 2, 1},
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{10, 5, 5, 5},
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}
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for i, tt := range tests {
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c := NewCache(tt.capacity)
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var responses []Response
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for i := 0; i < tt.addCount; i++ {
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ip := net.ParseIP(fmt.Sprintf("192.0.2.%d", i))
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r := Response{IP: ip}
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responses = append(responses, r)
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c.Set(ip, r)
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}
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if got := len(c.entries); got != tt.size {
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t.Errorf("#%d: len(entries) = %d, want %d", i, got, tt.size)
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}
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if got := c.evictions; got != tt.evictions {
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t.Errorf("#%d: evictions = %d, want %d", i, got, tt.evictions)
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}
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if tt.capacity > 0 && tt.addCount > tt.capacity && tt.capacity == tt.size {
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lastAdded := responses[tt.addCount-1]
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if _, ok := c.Get(lastAdded.IP); !ok {
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t.Errorf("#%d: Get(%s) = (_, %t), want (_, %t)", i, lastAdded.IP.String(), ok, !ok)
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}
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firstAdded := responses[0]
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if _, ok := c.Get(firstAdded.IP); ok {
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t.Errorf("#%d: Get(%s) = (_, %t), want (_, %t)", i, firstAdded.IP.String(), ok, !ok)
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}
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}
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}
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}
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func TestCacheDuplicate(t *testing.T) {
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c := NewCache(10)
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ip := net.ParseIP("192.0.2.1")
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response := Response{IP: ip}
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c.Set(ip, response)
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c.Set(ip, response)
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want := 1
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if got := len(c.entries); got != want {
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t.Errorf("want %d entries, got %d", want, got)
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}
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if got := c.values.Len(); got != want {
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t.Errorf("want %d values, got %d", want, got)
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}
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}
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func TestCacheResize(t *testing.T) {
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c := NewCache(10)
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for i := 1; i <= 20; i++ {
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ip := net.ParseIP(fmt.Sprintf("192.0.2.%d", i))
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r := Response{IP: ip}
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c.Set(ip, r)
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}
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if got, want := len(c.entries), 10; got != want {
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t.Errorf("want %d entries, got %d", want, got)
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}
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if got, want := c.evictions, uint64(10); got != want {
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t.Errorf("want %d evictions, got %d", want, got)
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}
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if err := c.Resize(5); err != nil {
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t.Fatal(err)
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}
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if got, want := c.evictions, uint64(0); got != want {
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t.Errorf("want %d evictions, got %d", want, got)
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}
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r := Response{IP: net.ParseIP("192.0.2.42")}
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c.Set(r.IP, r)
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if got, want := len(c.entries), 5; got != want {
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t.Errorf("want %d entries, got %d", want, got)
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}
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}
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