gobuffalo/envy
GitHub: gobuffalo/envy
Stars: 152 | Forks: 19
# envy
[](https://github.com/gobuffalo/envy/workflows/actions)
Envy makes working with ENV variables in Go trivial.
* Get ENV variables with default values.
* Set ENV variables safely without affecting the underlying system.
* Temporarily change ENV vars; useful for testing.
* Map all of the key/values in the ENV.
* Loads .env files (by using [godotenv](https://github.com/joho/godotenv/))
* More!
## Installation
$ go get -u github.com/gobuffalo/envy
## Usage
func Test_Get(t *testing.T) {
r := require.New(t)
r.NotZero(os.Getenv("GOPATH"))
r.Equal(os.Getenv("GOPATH"), envy.Get("GOPATH", "foo"))
r.Equal("bar", envy.Get("IDONTEXIST", "bar"))
}
func Test_MustGet(t *testing.T) {
r := require.New(t)
r.NotZero(os.Getenv("GOPATH"))
v, err := envy.MustGet("GOPATH")
r.NoError(err)
r.Equal(os.Getenv("GOPATH"), v)
_, err = envy.MustGet("IDONTEXIST")
r.Error(err)
}
func Test_Set(t *testing.T) {
r := require.New(t)
_, err := envy.MustGet("FOO")
r.Error(err)
envy.Set("FOO", "foo")
r.Equal("foo", envy.Get("FOO", "bar"))
}
func Test_Temp(t *testing.T) {
r := require.New(t)
_, err := envy.MustGet("BAR")
r.Error(err)
envy.Temp(func() {
envy.Set("BAR", "foo")
r.Equal("foo", envy.Get("BAR", "bar"))
_, err = envy.MustGet("BAR")
r.NoError(err)
})
_, err = envy.MustGet("BAR")
r.Error(err)
}
标签：EVTX分析