| /* |
| Copyright 2016 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package cacher |
| |
| import ( |
| "testing" |
| "time" |
| ) |
| |
| func TestTimeBudget(t *testing.T) { |
| budget := &timeBudget{ |
| budget: time.Duration(0), |
| maxBudget: time.Duration(200), |
| } |
| if res := budget.takeAvailable(); res != time.Duration(0) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(0), res) |
| } |
| budget.budget = time.Duration(100) |
| if res := budget.takeAvailable(); res != time.Duration(100) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(100), res) |
| } |
| if res := budget.takeAvailable(); res != time.Duration(0) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(0), res) |
| } |
| budget.returnUnused(time.Duration(50)) |
| if res := budget.takeAvailable(); res != time.Duration(50) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(50), res) |
| } |
| budget.budget = time.Duration(100) |
| budget.returnUnused(-time.Duration(50)) |
| if res := budget.takeAvailable(); res != time.Duration(100) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(100), res) |
| } |
| // test overflow. |
| budget.returnUnused(time.Duration(500)) |
| if res := budget.takeAvailable(); res != time.Duration(200) { |
| t.Errorf("Expected: %v, got: %v", time.Duration(200), res) |
| } |
| } |