147 lines
3.6 KiB
Go
147 lines
3.6 KiB
Go
/*
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Copyright 2013 Google Inc.
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Copyright 2017 Dual Inventive Technology Centre B.V.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package lruttl
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import (
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"testing"
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"time"
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)
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type simpleStruct struct {
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int
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string
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}
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type complexStruct struct {
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int
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simpleStruct
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}
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var getTests = []struct {
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name string
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keyToAdd interface{}
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keyToGet interface{}
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expectedOk bool
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}{
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{"string_hit", "myKey", "myKey", true},
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{"string_miss", "myKey", "nonsense", false},
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{"simple_struct_hit", simpleStruct{1, "two"}, simpleStruct{1, "two"}, true},
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{"simeple_struct_miss", simpleStruct{1, "two"}, simpleStruct{0, "noway"}, false},
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{"complex_struct_hit", complexStruct{1, simpleStruct{2, "three"}},
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complexStruct{1, simpleStruct{2, "three"}}, true},
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}
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func TestGet(t *testing.T) {
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for _, tt := range getTests {
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lru := New(0, time.Hour)
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lru.Add(tt.keyToAdd, 1234)
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val, ok := lru.Get(tt.keyToGet)
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if ok != tt.expectedOk {
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t.Fatalf("%s: cache hit = %v; want %v", tt.name, ok, !ok)
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} else if ok && val != 1234 {
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t.Fatalf("%s expected get to return 1234 but got %v", tt.name, val)
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}
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}
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}
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func TestRemove(t *testing.T) {
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lru := New(0, time.Hour)
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lru.Add("myKey", 1234)
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if val, ok := lru.Get("myKey"); !ok {
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t.Fatal("TestRemove returned no match")
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} else if val != 1234 {
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t.Fatalf("TestRemove failed. Expected %d, got %v", 1234, val)
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}
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lru.Remove("myKey")
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if _, ok := lru.Get("myKey"); ok {
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t.Fatal("TestRemove returned a removed entry")
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}
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}
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func TestTTL(t *testing.T) {
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lru := New(0, time.Millisecond*100)
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lru.Add("myKey", 1234)
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if val, ok := lru.Get("myKey"); !ok {
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t.Fatal("TestTTL returned no match")
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} else if val != 1234 {
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t.Fatalf("TestTTL failed. Expected %d, got %v", 1234, val)
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}
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time.Sleep(1 * time.Second)
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if _, ok := lru.Get("myKey"); ok {
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t.Fatal("TestTTL returned a removed entry")
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}
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}
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func TestTTLReset(t *testing.T) {
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lru := New(0, time.Second)
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lru.Add("myKey", 1234)
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if val, ok := lru.Get("myKey"); !ok {
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t.Fatal("TestTTLReset returned no match")
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} else if val != 1234 {
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t.Fatalf("TestTTLReset failed. Expected %d, got %v", 1234, val)
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}
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time.Sleep(500 * time.Millisecond)
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lru.Add("myKey", 5678)
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if val, ok := lru.Get("myKey"); !ok {
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t.Fatal("TestTTLReset returned no match")
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} else if val != 5678 {
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t.Fatalf("TestTTLReset failed. Expected %d, got %v", 5678, val)
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}
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time.Sleep(500 * time.Millisecond)
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if val, ok := lru.Get("myKey"); !ok {
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t.Fatal("TestTTLReset returned no match")
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} else if val != 5678 {
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t.Fatalf("TestTTLReset failed. Expected %d, got %v", 5678, val)
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}
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time.Sleep(700 * time.Millisecond)
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if _, ok := lru.Get("myKey"); ok {
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t.Fatal("TestTTLReset returned a removed entry")
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}
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}
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func TestAddNilCache(t *testing.T) {
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c := New(0, time.Hour)
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c.Clear()
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c.Add("a", 1)
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c.Clear()
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if _, ok := c.Get("a"); ok {
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t.Fatal("TestAddNilCache returned a removed entry")
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}
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c.Clear()
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c.Remove("a")
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c.Clear()
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c.RemoveOldest()
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}
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func TestAutoPrune(t *testing.T) {
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c := New(1, time.Hour)
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c.Add("a", 1)
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if _, ok := c.Get("a"); !ok {
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t.Fatal("TestAddNilCache returned no entry")
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}
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c.Add("b", 2)
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if _, ok := c.Get("a"); ok {
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t.Fatal("TestAddNilCache returned no entry")
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}
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}
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