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package shared
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func TestGenerateCommand(t *testing.T) {
inputCommand := "docker run -it --name NAME -e NAME=NAME -e IMAGE=IMAGE IMAGE echo \"hello world\""
correctCommand := "/proc/self/exe run -it --name bar -e NAME=bar -e IMAGE=foo foo echo hello world"
newCommand, err := GenerateCommand(inputCommand, "foo", "bar", "")
assert.Nil(t, err)
assert.Equal(t, "hello world", newCommand[11])
assert.Equal(t, correctCommand, strings.Join(newCommand, " "))
}
func TestGenerateCommandCheckSubstitution(t *testing.T) {
type subsTest struct {
input string
expected string
shouldFail bool
}
absTmpFile, err := ioutil.TempFile("", "podmanRunlabelTestAbsolutePath")
assert.Nil(t, err, "error creating tempfile")
defer os.Remove(absTmpFile.Name())
relTmpFile, err := ioutil.TempFile("./", "podmanRunlabelTestRelativePath")
assert.Nil(t, err, "error creating tempfile")
defer os.Remove(relTmpFile.Name())
relTmpCmd, err := filepath.Abs(relTmpFile.Name())
assert.Nil(t, err, "error getting absolute path for relative tmpfile")
// this has a (low) potential of race conditions but no other way
removedTmpFile, err := ioutil.TempFile("", "podmanRunlabelTestRemove")
assert.Nil(t, err, "error creating tempfile")
os.Remove(removedTmpFile.Name())
absTmpCmd := fmt.Sprintf("%s --flag1 --flag2 --args=foo", absTmpFile.Name())
tests := []subsTest{
{
input: "docker run -it alpine:latest",
expected: "/proc/self/exe run -it alpine:latest",
shouldFail: false,
},
{
input: "podman run -it alpine:latest",
expected: "/proc/self/exe run -it alpine:latest",
shouldFail: false,
},
{
input: absTmpCmd,
expected: absTmpCmd,
shouldFail: false,
},
{
input: "./" + relTmpFile.Name(),
expected: relTmpCmd,
shouldFail: false,
},
{
input: "ls -la",
expected: "ls -la",
shouldFail: false,
},
{
input: removedTmpFile.Name(),
expected: "",
shouldFail: true,
},
}
for _, test := range tests {
newCommand, err := GenerateCommand(test.input, "foo", "bar", "")
if test.shouldFail {
assert.NotNil(t, err)
} else {
assert.Nil(t, err)
}
assert.Equal(t, test.expected, strings.Join(newCommand, " "))
}
}
func TestGenerateCommandPath(t *testing.T) {
inputCommand := "docker run -it --name NAME -e NAME=NAME -e IMAGE=IMAGE IMAGE echo install"
correctCommand := "/proc/self/exe run -it --name bar -e NAME=bar -e IMAGE=foo foo echo install"
newCommand, _ := GenerateCommand(inputCommand, "foo", "bar", "")
assert.Equal(t, correctCommand, strings.Join(newCommand, " "))
}
func TestGenerateCommandNoSetName(t *testing.T) {
inputCommand := "docker run -it --name NAME -e NAME=NAME -e IMAGE=IMAGE IMAGE echo install"
correctCommand := "/proc/self/exe run -it --name foo -e NAME=foo -e IMAGE=foo foo echo install"
newCommand, err := GenerateCommand(inputCommand, "foo", "", "")
assert.Nil(t, err)
assert.Equal(t, correctCommand, strings.Join(newCommand, " "))
}
func TestGenerateCommandNoName(t *testing.T) {
inputCommand := "docker run -it -e IMAGE=IMAGE IMAGE echo install"
correctCommand := "/proc/self/exe run -it -e IMAGE=foo foo echo install"
newCommand, err := GenerateCommand(inputCommand, "foo", "", "")
assert.Nil(t, err)
assert.Equal(t, correctCommand, strings.Join(newCommand, " "))
}
func TestGenerateCommandAlreadyPodman(t *testing.T) {
inputCommand := "podman run -it --name NAME -e NAME=NAME -e IMAGE=IMAGE IMAGE echo install"
correctCommand := "/proc/self/exe run -it --name bar -e NAME=bar -e IMAGE=foo foo echo install"
newCommand, err := GenerateCommand(inputCommand, "foo", "bar", "")
assert.Nil(t, err)
assert.Equal(t, correctCommand, strings.Join(newCommand, " "))
}
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