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