mirror of https://github.com/prometheus/prometheus
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.8 KiB
91 lines
2.8 KiB
// Copyright 2019 The Prometheus 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. |
|
// |
|
// Inspired / copied / modified from https://gitlab.com/cznic/strutil/blob/master/strutil.go, |
|
// which is MIT licensed, so: |
|
// |
|
// Copyright (c) 2014 The strutil Authors. All rights reserved. |
|
|
|
package remote |
|
|
|
import ( |
|
"fmt" |
|
"testing" |
|
"time" |
|
|
|
"github.com/stretchr/testify/require" |
|
) |
|
|
|
func TestIntern(t *testing.T) { |
|
interner := newPool() |
|
testString := "TestIntern" |
|
interner.intern(testString) |
|
interned, ok := interner.pool[testString] |
|
|
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(1), interned.refs.Load(), fmt.Sprintf("expected refs to be 1 but it was %d", interned.refs.Load())) |
|
} |
|
|
|
func TestIntern_MultiRef(t *testing.T) { |
|
interner := newPool() |
|
testString := "TestIntern_MultiRef" |
|
|
|
interner.intern(testString) |
|
interned, ok := interner.pool[testString] |
|
|
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(1), interned.refs.Load(), fmt.Sprintf("expected refs to be 1 but it was %d", interned.refs.Load())) |
|
|
|
interner.intern(testString) |
|
interned, ok = interner.pool[testString] |
|
|
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(2), interned.refs.Load(), fmt.Sprintf("expected refs to be 2 but it was %d", interned.refs.Load())) |
|
} |
|
|
|
func TestIntern_DeleteRef(t *testing.T) { |
|
interner := newPool() |
|
testString := "TestIntern_DeleteRef" |
|
|
|
interner.intern(testString) |
|
interned, ok := interner.pool[testString] |
|
|
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(1), interned.refs.Load(), fmt.Sprintf("expected refs to be 1 but it was %d", interned.refs.Load())) |
|
|
|
interner.release(testString) |
|
_, ok = interner.pool[testString] |
|
require.Equal(t, false, ok) |
|
} |
|
|
|
func TestIntern_MultiRef_Concurrent(t *testing.T) { |
|
interner := newPool() |
|
testString := "TestIntern_MultiRef_Concurrent" |
|
|
|
interner.intern(testString) |
|
interned, ok := interner.pool[testString] |
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(1), interned.refs.Load(), fmt.Sprintf("expected refs to be 1 but it was %d", interned.refs.Load())) |
|
|
|
go interner.release(testString) |
|
|
|
interner.intern(testString) |
|
|
|
time.Sleep(time.Millisecond) |
|
|
|
interner.mtx.RLock() |
|
interned, ok = interner.pool[testString] |
|
interner.mtx.RUnlock() |
|
require.Equal(t, true, ok) |
|
require.Equal(t, int64(1), interned.refs.Load(), fmt.Sprintf("expected refs to be 1 but it was %d", interned.refs.Load())) |
|
}
|
|
|