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111 lines
3.0 KiB
111 lines
3.0 KiB
10 years ago
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/*
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Copyright 2013 Google Inc.
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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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Modifications from Minio under the following license:
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Minimalist Object Storage, (C) 2015 Minio, Inc.
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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 lru
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import (
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"testing"
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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)
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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)
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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 TestOldest(t *testing.T) {
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lru := New(0)
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lru.Add("a", 1)
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lru.Add("b", 2)
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lru.Add("c", 3)
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key, val, ok := lru.GetOldest()
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if ok != true {
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t.Fatalf("%s expected get to return 1 but got %v", "a", val)
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}
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if key != "a" && val != 1 {
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t.Fatalf("%s expected get to return 1 but got %v", "a", val)
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}
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lru.RemoveOldest()
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key, val, ok = lru.GetOldest()
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if ok != true {
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t.Fatalf("%s expected get to return 1 but got %v", "a", val)
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}
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if key != "b" && val != 2 {
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t.Fatalf("%s expected get to return 1 but got %v", "a", val)
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}
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}
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