gooswrap

Go Os Wrapper

gooswrap is a thin wrapper around the os and io/ioutil packages.

The wrapper provides a virtualisation layer for int testing in an automated environment.

Production usage

Just replace the os and io/ioutil packages to the ones provided in this package.

import (
    "os"
    "io/ioutil"
)

To

import (
    "github.com/kwitsch/gooswrap/os"
    "github.com/kwitsch/gooswrap/ioutil"
)

Test usage

A virtual environment can be initialized with gooswrap.NewVirtual().
After that several values specified can be set in the virtual environment.
Some methodes will return ErrNotSupported in virtual mode as not all functions can be virtulaized.

Ginkgo example:

When("Set values in virtual environment", func() {
    const (
        egid     int    = 991
        euid     int    = 992
        gid      int    = 993
        group    int    = 994
        pagesize int    = 995
        pid      int    = 996
        ppid     int    = 997
        uid      int    = 998
    )
    BeforeEach(func() {
        gooswrap.NewVirtual()
        err = gooswrap.Wrapper.Virtual.SetEgid(egid)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetEuid(euid)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetGid(gid)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetGroups([]int{group})
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetPagesize(pagesize)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetPid(pid)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetPpid(ppid)
        Expect(err).Should(BeNil())
        err = gooswrap.Wrapper.Virtual.SetUid(uid)
        Expect(err).Should(BeNil())
    })