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Move cgroups package into libcontainer

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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-05-14 15:21:44 -07:00
parent 9133caa6d3
commit b30f280d2f
25 changed files with 15 additions and 13 deletions
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169
libcontainer/cgroups/fs/blkio_test.go Normal file
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@ -0,0 +1,169 @@
package fs
import (
"testing"
)
const (
sectorsRecursiveContents = `8:0 1024`
serviceBytesRecursiveContents = `8:0 Read 100
8:0 Write 400
8:0 Sync 200
8:0 Async 300
8:0 Total 500
Total 500`
servicedRecursiveContents = `8:0 Read 10
8:0 Write 40
8:0 Sync 20
8:0 Async 30
8:0 Total 50
Total 50`
queuedRecursiveContents = `8:0 Read 1
8:0 Write 4
8:0 Sync 2
8:0 Async 3
8:0 Total 5
Total 5`
)
func TestBlkioStats(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": serviceBytesRecursiveContents,
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
stats, err := blkio.Stats(helper.CgroupData)
if err != nil {
t.Fatal(err)
}
// Verify expected stats.
expectedStats := map[string]float64{
"blkio.sectors_recursive:8:0": 1024.0,
// Serviced bytes.
"io_service_bytes_recursive:8:0:Read": 100.0,
"io_service_bytes_recursive:8:0:Write": 400.0,
"io_service_bytes_recursive:8:0:Sync": 200.0,
"io_service_bytes_recursive:8:0:Async": 300.0,
"io_service_bytes_recursive:8:0:Total": 500.0,
// Serviced requests.
"io_serviced_recursive:8:0:Read": 10.0,
"io_serviced_recursive:8:0:Write": 40.0,
"io_serviced_recursive:8:0:Sync": 20.0,
"io_serviced_recursive:8:0:Async": 30.0,
"io_serviced_recursive:8:0:Total": 50.0,
// Queued requests.
"io_queued_recursive:8:0:Read": 1.0,
"io_queued_recursive:8:0:Write": 4.0,
"io_queued_recursive:8:0:Sync": 2.0,
"io_queued_recursive:8:0:Async": 3.0,
"io_queued_recursive:8:0:Total": 5.0,
}
expectStats(t, expectedStats, stats)
}
func TestBlkioStatsNoSectorsFile(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": serviceBytesRecursiveContents,
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}
func TestBlkioStatsNoServiceBytesFile(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}
func TestBlkioStatsNoServicedFile(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": serviceBytesRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}
func TestBlkioStatsNoQueuedFile(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": serviceBytesRecursiveContents,
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}
func TestBlkioStatsUnexpectedNumberOfFields(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": "8:0 Read 100 100",
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}
func TestBlkioStatsUnexpectedFieldType(t *testing.T) {
helper := NewCgroupTestUtil("blkio", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"blkio.io_service_bytes_recursive": "8:0 Read Write",
"blkio.io_serviced_recursive": servicedRecursiveContents,
"blkio.io_queued_recursive": queuedRecursiveContents,
"blkio.sectors_recursive": sectorsRecursiveContents,
})
blkio := &blkioGroup{}
_, err := blkio.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected to fail, but did not")
}
}