}

    @Override
    public void removeEnvironmentVariable(String name) throws NativeIntegrationException {
        removeNativeEnvironmentVariable(name);
        reflectiveEnvironment.unsetenv(name);
    }

    protected abstract void removeNativeEnvironmentVariable(String name);

    @Override
    public EnvironmentModificationResult maybeRemoveEnvironmentVariable(String name) {

)

func setEnvVar(t *testing.T, env, val string, exists bool) {
	if exists {
		t.Setenv(env, val)
	} else if prev, ok := os.LookupEnv(env); ok {
		t.Cleanup(func() { os.Setenv(env, prev) })

		if err := os.Unsetenv(env); err != nil {
			t.Errorf("couldn't unset env %s: %v", env, err)
		}
	}
}

func TestFallbackToEnv(t *testing.T) {
	testCases := []struct {
		desc          string
		env           string

	if isPresent(EnvKMSSecretKey) && os.Getenv(EnvKMSSecretKey) == "" {
		os.Unsetenv(EnvKMSSecretKey)
	}
	if isPresent(EnvKMSSecretKeyFile) {
		if filename := os.Getenv(EnvKMSSecretKeyFile); filename == "" {
			os.Unsetenv(EnvKMSSecretKeyFile)
		} else if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
			os.Unsetenv(EnvKMSSecretKeyFile)
		}
	}

		},
		{
			env:     "v3",
			mangled: "p_u00e4_u4e16_U0001f703",
		},
		{
			env:  "error",
			fail: true,
		},
	}

	cmd := os.Args[0]
	tmpdir := t.TempDir()

	defer os.Unsetenv(testEnvName)

	for _, test := range tests {
		t.Run(test.env, func(t *testing.T) {
			os.Setenv(testEnvName, test.env)

			fn, err := ToSymbolFunc(cmd, tmpdir)
			if err != nil {
				if !test.fail {

index 45efe2e..06bfab0 100644
--- a/stdlib/setenv.c
+++ b/stdlib/setenv.c
@@ -319,6 +319,7 @@ unsetenv (const char *name)
 
   ep = __environ;
   if (ep != NULL)
+  {
     while (*ep != NULL)
       if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
 	{
@@ -332,6 +333,7 @@ unsetenv (const char *name)
 	}
       else
 	++ep;
+  }
 
   UNLOCK;
 

namespace {

using ::testing::IsNull;

TEST(DumpMlirModuleTest, NoEnvPrefix) {
  mlir::MLIRContext context;
  mlir::OwningOpRef<mlir::ModuleOp> module_ref =
      mlir::ModuleOp::create(mlir::UnknownLoc::get(&context));
  unsetenv("TF_DUMP_GRAPH_PREFIX");

  std::string filepath = DumpMlirOpToFile("module", module_ref.get());
  EXPECT_EQ(filepath, "(TF_DUMP_GRAPH_PREFIX not specified)");
}

TEST(DumpMlirModuleTest, LogInfo) {

	}
	os.Setenv("CGO_TEST_ALLOW", "-disallow")
	if err := checkCompilerFlags("TEST", "test", []string{"-disallow"}); err != nil {
		t.Fatalf("unexpected error for -disallow with CGO_TEST_ALLOW=-disallow: %v", err)
	}
	os.Unsetenv("CGO_TEST_ALLOW")

	if err := checkCompilerFlags("TEST", "test", []string{"-Wall"}); err != nil {
		t.Fatalf("unexpected error for -Wall: %v", err)
	}
	os.Setenv("CGO_TEST_DISALLOW", "-Wall")

  TFE_DeleteContext(ctx);
  TF_DeleteStatus(status);

  // TODO(b/136478427): Figure out how to correctly shut the server down.
  worker_server.release();
  tensorflow::unsetenv("GRPC_FAIL_FAST");
}

TEST(CAPI, RemoteExecuteUpdateServerDefWithFailures) {
  TestRemoteExecuteUpdateServerDefWithFailures(false);
}

TEST(CAPI, RemoteExecuteUpdateServerDefWithFailuresAsync) {

	fmt.Printf("%s lives in %s.\n", os.Getenv("NAME"), os.Getenv("BURROW"))

	// Output:
	// gopher lives in /usr/gopher.
}

func ExampleUnsetenv() {
	os.Setenv("TMPDIR", "/my/tmp")
	defer os.Unsetenv("TMPDIR")
}

func ExampleReadDir() {
	files, err := os.ReadDir(".")
	if err != nil {
		log.Fatal(err)
	}

	for _, file := range files {
		fmt.Println(file.Name())
	}
}

		}
	}
}

func TestVerifyPanic(t *testing.T) {
	os.Setenv("GODEBUG", "gocacheverify=1")
	initEnv()
	defer func() {
		os.Unsetenv("GODEBUG")
		verify = false
	}()

	if !verify {
		t.Fatal("initEnv did not set verify")
	}

	dir, err := os.MkdirTemp("", "cachetest-")
	if err != nil {
		t.Fatal(err)
	}