You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: gview_z_unit_i18n_test.go
    path of file: ./repos/gf/os/gview
    
    the code of the file until where you have to start completion: // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.

package gview_test

import (
	"context"
	"testing"

	"github.com/gogf/gf/v2/debug/gdebug"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/i18n/gi18n"
	"github.com/gogf/gf/v2/os/gctx"
	"github.com/gogf/gf/v2/os/gfile"
	"github.com/gogf/gf/v2/os/gview"
	"github.com/gogf/gf/v2/test/gtest"
)

func Test_I18n(t *testing.T) {
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "你好世界!"`
		expect2 := `john says "こんにちは世界!"`
		expect3 := `john says "{#hello}{#world}!"`

		g.I18n().SetPath(gtest.DataPath("i18n"))

		g.I18n().SetLanguage("zh-CN")
		result1, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result1, expect1)

		g.I18n().SetLanguage("ja")
		result2, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result2, expect2)

		g.I18n().SetLanguage("none")
		result3, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result3, expect3)
	})
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "你好世界!"`
		expect2 := `john says "こんにちは世界!"`
		expect3 := `john says "{#hello}{#world}!"`

		g.I18n().SetPath(gdebug.CallerDirect
    
func Test_I18n(t *testing.T) {
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "你好世界!"`
		expect2 := `john says "こんにちは世界!"`
		expect3 := `john says "{#hello}{#world}!"`

		g.I18n().SetPath(gtest.DataPath("i18n"))

		g.I18n().SetLanguage("zh-CN")
		result1, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result1, expect1)

		g.I18n().SetLanguage("ja")
		result2, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result2, expect2)

		g.I18n().SetLanguage("none")
		result3, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result3, expect3)
	})
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "你好世界!"`
		expect2 := `john says "こんにちは世界!"`
		expect3 := `john says "{#hello}{#world}!"`

		g.I18n().SetPath(gdebug.CallerDirectory() + gfile.Separator + "testdata" + gfile.Separator + "i18n")

		result1, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name":         "john",
			"I18nLanguage": "zh-CN",
		})
		t.AssertNil(err)
		t.Assert(result1, expect1)

		result2, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name":         "john",
			"I18nLanguage": "ja",
		})
		t.AssertNil(err)
		t.Assert(result2, expect2)

		result3, err := g.View().ParseContent(context.TODO(), content, g.Map{
			"name":         "john",
			"I18nLanguage": "none",
		})
		t.AssertNil(err)
		t.Assert(result3, expect3)
	})
	// gi18n manager is nil
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "{#hello}{#world}!"`

		g.I18n().SetPath(gdebug.CallerDirectory() + gfile.Separator + "testdata" + gfile.Separator + "i18n")

		view := gview.New()
		view.SetI18n(nil)
		result1, err := view.ParseContent(context.TODO(), content, g.Map{
			"name":         "john",
			"I18nLanguage": "zh-CN",
		})
		t.AssertNil(err)
		t.Assert(result1, expect1)
	})
	// SetLanguage in context
	gtest.C(t, func(t *gtest.T) {
		content := `{{.name}} says "{#hello}{#world}!"`
		expect1 := `john says "你好世界!"`
		ctx := gctx.New()
		g.I18n().SetPath(gdebug.CallerDirectory() + gfile.Separator + "testdata" + gfile.Separator + "i18n")
		ctx = gi18n.WithLanguage(ctx, "zh-CN")
		t.Log(gi18n.LanguageFromCtx(ctx))

		view := gview.New()

		result1, err := view.ParseContent(ctx, content, g.Map{
			"name": "john",
		})
		t.AssertNil(err)
		t.Assert(result1, expect1)
	})

}