//go:build unix && !ios && !android

package time_test

import (
	"os"
	"testing"
	"time"
)

func TestEnvTZUsage(t *testing.T) {
	const env = "TZ"
	tz, ok := os.LookupEnv(env)
	if !ok {
		defer os.Unsetenv(env)
	} else {
		defer os.Setenv(env, tz)
	}
	defer time.ForceUSPacificForTesting()

	localZoneName := "Local"
	// The file may not exist.
	if _, err := os.Stat("/etc/localtime"); os.IsNotExist(err) {

		}
		if !strings.Contains(str, expectedStr) {
			t.Errorf("Test %d: expected: %s, got: %s", i+1, expectedStr, str)
		}
		globalIsCICD = sci
		os.Unsetenv("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION")
		os.Unsetenv(testCase.envName)
	}
}

// Tests if the environment we are running is in DCOS.
func TestIsDCOS(t *testing.T) {
	sci := globalIsCICD
	globalIsCICD = false
	defer func() {

					env[key] = i // first mention of key
				} else {
					// Clear duplicate keys. This permits Unsetenv to
					// safely delete only the first item without
					// worrying about unshadowing a later one,
					// which might be a security problem.
					envs[i] = ""
				}
				break
			}
		}
	}
}

func Unsetenv(key string) error {
	envOnce.Do(copyenv)

	envLock.Lock()
	defer envLock.Unlock()

	{"@", "at"},
	{"!", "exclamation mark"},
	{"?", "question mark"},
	{"-", "dash"},
}

func TestExpandEnvShellSpecialVar(t *testing.T) {
	for _, tt := range shellSpecialVarTests {
		Setenv(tt.k, tt.v)
		defer Unsetenv(tt.k)

		argRaw := fmt.Sprintf("$%s", tt.k)
		argWithBrace := fmt.Sprintf("${%s}", tt.k)
		if gotRaw, gotBrace := ExpandEnv(argRaw), ExpandEnv(argWithBrace); gotRaw != gotBrace {

		}
	}
}

func ResetProxyEnv() {
	for _, v := range []string{"HTTP_PROXY", "http_proxy", "NO_PROXY", "no_proxy", "REQUEST_METHOD"} {
		os.Unsetenv(v)
	}
	ResetCachedEnvironment()

	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/kubernetes/pkg/probe"
)

const FailureCode int = -1

func unsetEnv(t testing.TB, key string) {
	if originalValue, ok := os.LookupEnv(key); ok {
		t.Cleanup(func() { os.Setenv(key, originalValue) })
		os.Unsetenv(key)
	}
}

func TestHTTPProbeProxy(t *testing.T) {
	res := "welcome to http probe proxy"

	os.Unsetenv("_X")
	inLine = "//go:generate CMD0"
	expected = []string{"abcd"}
	got = g.split(inLine + "\n")

	if !reflect.DeepEqual(got, expected) {
		t.Errorf("split(%q): got %q expected %q", inLine, got, expected)
	}

	// Try another undefined variable as an extra check
	os.Unsetenv("_Z")
	inLine = "//go:generate -command CMD1 \"ab${_Z}cd\""

// The GOROOT directory is empty if we are invoking a command named
// gotoolchain found in $PATH.
func execGoToolchain(gotoolchain, dir, exe string) {
	os.Setenv(targetEnv, gotoolchain)
	if dir == "" {
		os.Unsetenv("GOROOT")
	} else {
		os.Setenv("GOROOT", dir)
	}

	// On Windows, there is no syscall.Exec, so the best we can do
	// is run a subprocess and exit with the same status.

	if err := os.Setenv(k, v); err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() {
		if oldset {
			if err := os.Setenv(k, old); err != nil {
				t.Fatal(err)
			}
		} else {
			if err := os.Unsetenv(k); err != nil {
				t.Fatal(err)
			}
		}
	})
}

// SetAtomicBoolForTest sets a variable for the duration of a test, then resets it once the test is complete atomically.

import java.lang.reflect.Field;
import java.util.Map;

/**
 * Uses reflection to update private environment state
 */
public class ReflectiveEnvironment {

    public void unsetenv(String name) {
        Map<String, String> map = getEnv();
        map.remove(name);
        if (OperatingSystem.current().isWindows()) {
            Map<String, String> env2 = getWindowsEnv();
            env2.remove(name);