package mock_test

import (
	"git.noahlan.cn/noahlan/ntool/nenv"
	"git.noahlan.cn/noahlan/ntool/ntest/assert"
	"git.noahlan.cn/noahlan/ntool/ntest/mock"
	"os"
	"testing"
)

func TestMockEnvValue(t *testing.T) {
	is := assert.New(t)
	is.Eq("", os.Getenv("APP_COMMAND"))

	mock.MockEnvValue("APP_COMMAND", "new val", func(nv string) {
		is.Eq("new val", nv)
	})

	shellVal := "custom-value"
	mock.MockEnvValue("SHELL", shellVal, func(newVal string) {
		is.Eq(shellVal, newVal)
	})

	is.Eq("", os.Getenv("APP_COMMAND"))
	is.Panics(func() {
		mock.MockEnvValue("invalid=", "value", nil)
	})
}

func TestMockEnvValues(t *testing.T) {
	is := assert.New(t)
	is.Eq("", os.Getenv("APP_COMMAND"))

	mock.MockEnvValues(map[string]string{
		"APP_COMMAND": "new val",
	}, func() {
		is.Eq("new val", os.Getenv("APP_COMMAND"))
	})

	is.Eq("", os.Getenv("APP_COMMAND"))
}

func TestMockOsEnvByText(t *testing.T) {
	envStr := `
APP_COMMAND = login
APP_ENV = dev
APP_DEBUG = true
`

	mock.MockOsEnvByText(envStr, func() {
		assert.Len(t, nenv.Environ(), 3)
		assert.Eq(t, "true", os.Getenv("APP_DEBUG"))
		assert.Eq(t, "login", os.Getenv("APP_COMMAND"))
	})
}