100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package main
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/google/go-cmp/cmp"
|
|
)
|
|
|
|
func TestEnv(t *testing.T) {
|
|
|
|
var (
|
|
init = map[string]string{
|
|
"FOO": "bar",
|
|
}
|
|
|
|
wasSet = map[string]string{}
|
|
wasUnset = map[string]bool{}
|
|
|
|
setenv = func(k, v string) error {
|
|
wasSet[k] = v
|
|
return nil
|
|
}
|
|
unsetenv = func(k string) error {
|
|
wasUnset[k] = true
|
|
return nil
|
|
}
|
|
)
|
|
|
|
env := newEnvironmentForTest(init, setenv, unsetenv)
|
|
|
|
if got, want := env.Get("FOO", ""), "bar"; got != want {
|
|
t.Errorf(`env.Get("FOO") = %q, want %q`, got, want)
|
|
}
|
|
if got, want := env.IsSet("FOO"), true; got != want {
|
|
t.Errorf(`env.IsSet("FOO") = %v, want %v`, got, want)
|
|
}
|
|
|
|
if got, want := env.Get("BAR", "defaultVal"), "defaultVal"; got != want {
|
|
t.Errorf(`env.Get("BAR") = %q, want %q`, got, want)
|
|
}
|
|
if got, want := env.IsSet("BAR"), false; got != want {
|
|
t.Errorf(`env.IsSet("BAR") = %v, want %v`, got, want)
|
|
}
|
|
|
|
env.Set("BAR", "quux")
|
|
if got, want := env.Get("BAR", ""), "quux"; got != want {
|
|
t.Errorf(`env.Get("BAR") = %q, want %q`, got, want)
|
|
}
|
|
if got, want := env.IsSet("BAR"), true; got != want {
|
|
t.Errorf(`env.IsSet("BAR") = %v, want %v`, got, want)
|
|
}
|
|
diff := "BAR=quux (was <nil>)"
|
|
if got := env.Diff(); got != diff {
|
|
t.Errorf("env.Diff() = %q, want %q", got, diff)
|
|
}
|
|
|
|
env.Set("FOO", "foo2")
|
|
if got, want := env.Get("FOO", ""), "foo2"; got != want {
|
|
t.Errorf(`env.Get("FOO") = %q, want %q`, got, want)
|
|
}
|
|
if got, want := env.IsSet("FOO"), true; got != want {
|
|
t.Errorf(`env.IsSet("FOO") = %v, want %v`, got, want)
|
|
}
|
|
diff = `BAR=quux (was <nil>)
|
|
FOO=foo2 (was bar)`
|
|
if got := env.Diff(); got != diff {
|
|
t.Errorf("env.Diff() = %q, want %q", got, diff)
|
|
}
|
|
|
|
env.Unset("FOO")
|
|
if got, want := env.Get("FOO", "default"), "default"; got != want {
|
|
t.Errorf(`env.Get("FOO") = %q, want %q`, got, want)
|
|
}
|
|
if got, want := env.IsSet("FOO"), false; got != want {
|
|
t.Errorf(`env.IsSet("FOO") = %v, want %v`, got, want)
|
|
}
|
|
diff = `BAR=quux (was <nil>)
|
|
FOO=<nil> (was bar)`
|
|
if got := env.Diff(); got != diff {
|
|
t.Errorf("env.Diff() = %q, want %q", got, diff)
|
|
}
|
|
|
|
if err := env.Apply(); err != nil {
|
|
t.Fatalf("env.Apply() failed: %v", err)
|
|
}
|
|
|
|
wantSet := map[string]string{"BAR": "quux"}
|
|
wantUnset := map[string]bool{"FOO": true}
|
|
|
|
if diff := cmp.Diff(wasSet, wantSet); diff != "" {
|
|
t.Errorf("env.Apply didn't set as expected (-got+want):\n%s", diff)
|
|
}
|
|
if diff := cmp.Diff(wasUnset, wantUnset); diff != "" {
|
|
t.Errorf("env.Apply didn't unset as expected (-got+want):\n%s", diff)
|
|
}
|
|
}
|