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tests: allow running unit tests using podman

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Refactor unit test so that podman can be used to run tests when docker
is not available.

Fixes: #2006

Signed-off-by: Marco Vedovati <mvedovati@suse.com>
This commit is contained in:
Marco Vedovati
2019-08-29 15:47:25 +02:00
parent af574851be
commit ff8d23d75f
4 changed files with 141 additions and 90 deletions
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54
cli/main_test.go
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@@ -52,6 +52,7 @@ var (
testDir = ""
testBundleDir = ""
tc ktu.TestConstraint
ctrEngine = katautils.CtrEngine{}
)
// testingImpl is a concrete mock RVC implementation used for testing
@@ -87,26 +88,33 @@ func init() {
if err != nil {
panic(fmt.Sprintf("ERROR: failed to create test directory: %v", err))
}
fmt.Printf("INFO: test directory is %v\n", testDir)
fmt.Printf("INFO: ensuring docker is running\n")
output, err := katautils.RunCommandFull([]string{"docker", "version"}, true)
if err != nil {
panic(fmt.Sprintf("ERROR: docker daemon is not installed, not running, or not accessible to current user: %v (error %v)",
var output string
for _, name := range katautils.DockerLikeCtrEngines {
fmt.Printf("INFO: checking for container engine: %s\n", name)
output, err = ctrEngine.Init(name)
if err == nil {
break
}
}
if ctrEngine.Name == "" {
panic(fmt.Sprintf("ERROR: Docker-like container engine not accessible to current user: %v (error %v)",
output, err))
}
// Do this now to avoid hitting the test timeout value due to
// slow network response.
fmt.Printf("INFO: ensuring required docker image (%v) is available\n", testDockerImage)
fmt.Printf("INFO: ensuring required container image (%v) is available\n", testDockerImage)
// Only hit the network if the image doesn't exist locally
_, err = katautils.RunCommand([]string{"docker", "inspect", "--type=image", testDockerImage})
_, err = ctrEngine.Inspect(testDockerImage)
if err == nil {
fmt.Printf("INFO: docker image %v already exists locally\n", testDockerImage)
fmt.Printf("INFO: container image %v already exists locally\n", testDockerImage)
} else {
_, err = katautils.RunCommand([]string{"docker", "pull", testDockerImage})
fmt.Printf("INFO: pulling container image %v\n", testDockerImage)
_, err = ctrEngine.Pull(testDockerImage)
if err != nil {
panic(err)
}
@@ -300,38 +308,18 @@ func createRootfs(dir string) error {
return err
}
container, err := katautils.RunCommand([]string{"docker", "create", testDockerImage})
container, err := ctrEngine.Create(testDockerImage)
if err != nil {
return err
}
cmd1 := exec.Command("docker", "export", container)
cmd2 := exec.Command("tar", "-C", dir, "-xvf", "-")
cmd1Stdout, err := cmd1.StdoutPipe()
if err != nil {
return err
}
cmd2.Stdin = cmd1Stdout
err = cmd2.Start()
if err != nil {
return err
}
err = cmd1.Run()
if err != nil {
return err
}
err = cmd2.Wait()
err = ctrEngine.GetRootfs(container, dir)
if err != nil {
return err
}
// Clean up
_, err = katautils.RunCommand([]string{"docker", "rm", container})
_, err = ctrEngine.Rm(container)
if err != nil {
return err
}