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package main
import (
"testing"
units "github.com/docker/go-units"
ociv1 "github.com/opencontainers/image-spec/specs-go/v1"
spec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/projectatomic/libpod/pkg/inspect"
"github.com/stretchr/testify/assert"
"github.com/urfave/cli"
)
var (
cmd = []string{"podman", "test", "alpine"}
CLI *cli.Context
testCommand = cli.Command{
Name: "test",
Flags: createFlags,
Action: testCmd,
}
)
// generates a mocked ImageData structure based on alpine
func generateAlpineImageData() *inspect.ImageData {
config := &ociv1.ImageConfig{
User: "",
ExposedPorts: nil,
Env: []string{"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"},
Entrypoint: []string{},
Cmd: []string{"/bin/sh"},
Volumes: nil,
WorkingDir: "",
Labels: nil,
StopSignal: "",
}
data := &inspect.ImageData{
ID: "e21c333399e0aeedfd70e8827c9fba3f8e9b170ef8a48a29945eb7702bf6aa5f",
RepoTags: []string{"docker.io/library/alpine:latest"},
RepoDigests: []string{"docker.io/library/alpine@sha256:5cb04fce748f576d7b72a37850641de8bd725365519673c643ef2d14819b42c6"},
Comment: "Created:2017-12-01 18:48:48.949613376 +0000",
Author: "",
Architecture: "amd64",
Os: "linux",
Version: "17.06.2-ce",
ContainerConfig: config,
}
return data
}
// sets a global CLI
func testCmd(c *cli.Context) error {
CLI = c
return nil
}
// creates the mocked cli pointing to our create flags
// global flags like log-level are not implemented
func createCLI() cli.App {
a := cli.App{
Commands: []cli.Command{
testCommand,
},
}
return a
}
func getRuntimeSpec(c *cli.Context) (*spec.Spec, error) {
/*
TODO: This test has never worked. Need to install content
runtime, err := getRuntime(c)
if err != nil {
return nil, err
}
createConfig, err := parseCreateOpts(c, runtime, "alpine", generateAlpineImageData())
*/
ctx := getContext()
createConfig, err := parseCreateOpts(ctx, c, nil, "alpine", generateAlpineImageData())
if err != nil {
return nil, err
}
runtimeSpec, err := createConfigToOCISpec(createConfig)
if err != nil {
return nil, err
}
return runtimeSpec, nil
}
// TestPIDsLimit verifies the inputed pid-limit is correctly defined in the spec
func TestPIDsLimit(t *testing.T) {
a := createCLI()
args := []string{"--pids-limit", "22"}
a.Run(append(cmd, args...))
runtimeSpec, err := getRuntimeSpec(CLI)
if err != nil {
t.Fatalf(err.Error())
}
assert.Equal(t, runtimeSpec.Linux.Resources.Pids.Limit, int64(22))
}
// TestBLKIOWeightDevice verifies the inputed blkio weigh device is correctly defined in the spec
func TestBLKIOWeightDevice(t *testing.T) {
a := createCLI()
args := []string{"--blkio-weight-device", "/dev/zero:100"}
a.Run(append(cmd, args...))
runtimeSpec, err := getRuntimeSpec(CLI)
if err != nil {
t.Fatalf(err.Error())
}
assert.Equal(t, *runtimeSpec.Linux.Resources.BlockIO.WeightDevice[0].Weight, uint16(100))
}
// TestMemorySwap verifies that the inputed memory swap is correctly defined in the spec
func TestMemorySwap(t *testing.T) {
a := createCLI()
args := []string{"--memory-swap", "45m", "--memory", "40m"}
a.Run(append(cmd, args...))
runtimeSpec, err := getRuntimeSpec(CLI)
if err != nil {
t.Fatalf(err.Error())
}
mem, _ := units.RAMInBytes("45m")
assert.Equal(t, *runtimeSpec.Linux.Resources.Memory.Swap, mem)
}
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