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100 lines
2.9 KiB
100 lines
2.9 KiB
// Copyright 2019 clair authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package pgsql
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestAcquireLockReturnsExistingLockDuration(t *testing.T) {
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tx, cleanup := createTestPgSessionWithFixtures(t, "Lock")
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defer cleanup()
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acquired, originalExpiration, err := tx.AcquireLock("test1", "owner1", time.Minute)
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require.Nil(t, err)
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require.True(t, acquired)
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acquired2, expiration, err := tx.AcquireLock("test1", "owner2", time.Hour)
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require.Nil(t, err)
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require.False(t, acquired2)
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require.Equal(t, expiration, originalExpiration)
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}
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func TestLock(t *testing.T) {
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datastore, tx := openSessionForTest(t, "Lock", true)
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defer datastore.Close()
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var l bool
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// Create a first lock.
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l, _, err := tx.AcquireLock("test1", "owner1", time.Minute)
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assert.Nil(t, err)
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assert.True(t, l)
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tx = restartSession(t, datastore, tx, true)
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// lock again by itself, the previous lock is not expired yet.
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l, _, err = tx.AcquireLock("test1", "owner1", time.Minute)
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assert.Nil(t, err)
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assert.True(t, l) // acquire lock no-op when owner already has the lock.
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tx = restartSession(t, datastore, tx, false)
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// Try to renew the same lock with another owner.
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l, _, err = tx.ExtendLock("test1", "owner2", time.Minute)
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assert.Nil(t, err)
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assert.False(t, l)
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tx = restartSession(t, datastore, tx, false)
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l, _, err = tx.AcquireLock("test1", "owner2", time.Minute)
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assert.Nil(t, err)
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assert.False(t, l)
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tx = restartSession(t, datastore, tx, false)
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// Renew the lock.
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l, _, err = tx.ExtendLock("test1", "owner1", 2*time.Minute)
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assert.Nil(t, err)
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assert.True(t, l)
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tx = restartSession(t, datastore, tx, true)
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// Unlock and then relock by someone else.
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err = tx.ReleaseLock("test1", "owner1")
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assert.Nil(t, err)
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tx = restartSession(t, datastore, tx, true)
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l, _, err = tx.AcquireLock("test1", "owner2", time.Minute)
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assert.Nil(t, err)
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assert.True(t, l)
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tx = restartSession(t, datastore, tx, true)
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// Create a second lock which is actually already expired ...
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l, _, err = tx.AcquireLock("test2", "owner1", -time.Minute)
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assert.Nil(t, err)
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assert.True(t, l)
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tx = restartSession(t, datastore, tx, true)
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// Take over the lock
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l, _, err = tx.AcquireLock("test2", "owner2", time.Minute)
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assert.Nil(t, err)
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assert.True(t, l)
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tx = restartSession(t, datastore, tx, true)
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if !assert.Nil(t, tx.Rollback()) {
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t.FailNow()
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}
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}
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