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langs_test.go
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langs_test.go
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package langs
import (
"encoding/json"
"testing"
"github.com/stretchr/testify/require"
)
func TestIsValidSuccess(t *testing.T) {
require.True(t, IsValid("en"))
}
func TestIsValidFailure(t *testing.T) {
require.False(t, IsValid("foo"))
}
func TestNativeName(t *testing.T) {
require.Equal(t, "English", NativeName(EN))
}
func TestLangString(t *testing.T) {
require.Equal(t, EN.String(), "en")
}
func TestLangJSONMarshal(t *testing.T) {
content, err := json.Marshal(ES)
require.NoError(t, err)
require.JSONEq(t, string(content), `"es"`)
content, err = json.Marshal(map[Lang]string{
ES: "es-content",
EN: "en-content",
})
require.NoError(t, err)
require.JSONEq(t, string(content), `{"en": "en-content", "es": "es-content"}`)
}
func TestLangJSONUnmarshal(t *testing.T) {
var lang Lang
require.NoError(t, json.Unmarshal([]byte(`"es"`), &lang))
require.Equal(t, ES, lang)
var content map[Lang]string
require.NoError(t, json.Unmarshal([]byte(`{"en": "en-content", "es": "es-content"}`), &content))
require.Equal(t, content, map[Lang]string{
ES: "es-content",
EN: "en-content",
})
}
func TestLangParse(t *testing.T) {
lang, _ := Parse("es")
require.Equal(t, ES, lang)
_, err := Parse("foo")
require.EqualError(t, err, `langs: unknown code "foo"`)
}