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add containerid test

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This commit is contained in:
nils måsén 2022-09-17 12:34:35 +02:00
parent 8408b6b46f
commit 9ee6dd9dec
2 changed files with 49 additions and 5 deletions
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10
pkg/container/cgroup_id.go
View file

@ -17,9 +17,13 @@ func GetRunningContainerID() (cid types.ContainerID, err error) {
return return
} }
matches := dockerContainerPattern.FindStringSubmatch(string(file)) return getRunningContainerIDFromString(string(file)), nil
}
func getRunningContainerIDFromString(s string) types.ContainerID {
matches := dockerContainerPattern.FindStringSubmatch(s)
if len(matches) < 2 { if len(matches) < 2 {
return "", nil return ""
} }
return types.ContainerID(matches[1]), nil return types.ContainerID(matches[1])
} }

40
pkg/container/cgroup_id_test.go Normal file
View file

@ -0,0 +1,40 @@
package container
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("GetRunningContainerID", func() {
When("a matching container ID is found", func() {
It("should return that container ID", func() {
cid := getRunningContainerIDFromString(`
15:name=systemd:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
14:misc:/
13:rdma:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
12:pids:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
11:hugetlb:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
10:net_prio:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
9:perf_event:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
8:net_cls:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
7:freezer:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
6:devices:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
5:blkio:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
4:cpuacct:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
3:cpu:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
2:cpuset:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
1:memory:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
0::/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
`)
Expect(cid).To(BeEquivalentTo(`991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377`))
})
})
When("no matching container ID could be found", func() {
It("should return that container ID", func() {
cid := getRunningContainerIDFromString(`14:misc:/`)
Expect(cid).To(BeEmpty())
})
})
})
//