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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package message
import (
"bytes"
"fmt"
"io"
"testing"
"golang.org/x/text/internal"
"golang.org/x/text/internal/format"
"golang.org/x/text/language"
"golang.org/x/text/message/catalog"
)
type formatFunc func(s fmt.State, v rune)
func (f formatFunc) Format(s fmt.State, v rune) { f(s, v) }
func TestBinding(t *testing.T) {
testCases := []struct {
tag string
value interface{}
want string
}{
{"en", 1, "1"},
{"en", "2", "2"},
{ // Language is passed.
"en",
formatFunc(func(fs fmt.State, v rune) {
s := fs.(format.State)
io.WriteString(s, s.Language().String())
}),
"en",
},
}
for i, tc := range testCases {
p := NewPrinter(language.MustParse(tc.tag))
if got := p.Sprint(tc.value); got != tc.want {
t.Errorf("%d:%s:Sprint(%v) = %q; want %q", i, tc.tag, tc.value, got, tc.want)
}
var buf bytes.Buffer
p.Fprint(&buf, tc.value)
if got := buf.String(); got != tc.want {
t.Errorf("%d:%s:Fprint(%v) = %q; want %q", i, tc.tag, tc.value, got, tc.want)
}
}
}
func TestLocalization(t *testing.T) {
type test struct {
tag string
key Reference
args []interface{}
want string
}
args := func(x ...interface{}) []interface{} { return x }
empty := []interface{}{}
joe := []interface{}{"Joe"}
joeAndMary := []interface{}{"Joe", "Mary"}
testCases := []struct {
desc string
cat []entry
test []test
}{{
desc: "empty",
test: []test{
{"en", "key", empty, "key"},
{"en", "", empty, ""},
{"nl", "", empty, ""},
},
}, {
desc: "hierarchical languages",
cat: []entry{
{"en", "hello %s", "Hello %s!"},
{"en-GB", "hello %s", "Hellø %s!"},
{"en-US", "hello %s", "Howdy %s!"},
{"en", "greetings %s and %s", "Greetings %s and %s!"},
},
test: []test{
{"und", "hello %s", joe, "hello Joe"},
{"nl", "hello %s", joe, "hello Joe"},
{"en", "hello %s", joe, "Hello Joe!"},
{"en-US", "hello %s", joe, "Howdy Joe!"},
{"en-GB", "hello %s", joe, "Hellø Joe!"},
{"en-oxendict", "hello %s", joe, "Hello Joe!"},
{"en-US-oxendict-u-ms-metric", "hello %s", joe, "Howdy Joe!"},
{"und", "greetings %s and %s", joeAndMary, "greetings Joe and Mary"},
{"nl", "greetings %s and %s", joeAndMary, "greetings Joe and Mary"},
{"en", "greetings %s and %s", joeAndMary, "Greetings Joe and Mary!"},
{"en-US", "greetings %s and %s", joeAndMary, "Greetings Joe and Mary!"},
{"en-GB", "greetings %s and %s", joeAndMary, "Greetings Joe and Mary!"},
{"en-oxendict", "greetings %s and %s", joeAndMary, "Greetings Joe and Mary!"},
{"en-US-oxendict-u-ms-metric", "greetings %s and %s", joeAndMary, "Greetings Joe and Mary!"},
},
}, {
desc: "references",
cat: []entry{
{"en", "hello", "Hello!"},
},
test: []test{
{"en", "hello", empty, "Hello!"},
{"en", Key("hello", "fallback"), empty, "Hello!"},
{"en", Key("xxx", "fallback"), empty, "fallback"},
{"und", Key("hello", "fallback"), empty, "fallback"},
},
}, {
desc: "zero substitution", // work around limitation of fmt
cat: []entry{
{"en", "hello %s", "Hello!"},
{"en", "hi %s and %s", "Hello %[2]s!"},
},
test: []test{
{"en", "hello %s", joe, "Hello!"},
{"en", "hello %s", joeAndMary, "Hello!"},
{"en", "hi %s and %s", joeAndMary, "Hello Mary!"},
// The following tests resolve to the fallback string.
{"und", "hello", joeAndMary, "hello"},
{"und", "hello %%%%", joeAndMary, "hello %%"},
{"und", "hello %#%%4.2% ", joeAndMary, "hello %% "},
{"und", "hello %s", joeAndMary, "hello Joe%!(EXTRA string=Mary)"},
{"und", "hello %+%%s", joeAndMary, "hello %Joe%!(EXTRA string=Mary)"},
{"und", "hello %-42%%s ", joeAndMary, "hello %Joe %!(EXTRA string=Mary)"},
},
}, {
desc: "number formatting",
cat: []entry{
{"und", "files", "%d files left"},
{"und", "meters", "%.2f meters"},
{"de", "files", "%d Dateien übrig"},
},
test: []test{
{"en", "meters", args(3000.2), "3,000.20 meters"},
{"en-u-nu-gujr", "files", args(123456), "૧૨૩,૪૫૬ files left"},
{"de", "files", args(1234), "1.234 Dateien übrig"},
{"de-CH", "files", args(1234), "1’234 Dateien übrig"},
{"de-CH-u-nu-mong", "files", args(1234), "᠑’᠒᠓᠔ Dateien übrig"},
},
}, {
desc: "substitute translation",
cat: []entry{
{"en", "google", "Google"},
{"en", "sub", "%s"},
{"en", "visit", "Lookup: %m."},
},
test: []test{
{"en", "visit", args("google"), "Lookup: Google."},
{"en", "visit", args("sub"), "Lookup: %s."},
},
}}
for _, tc := range testCases {
cat, _ := initCat(tc.cat)
for i, pt := range tc.test {
t.Run(fmt.Sprintf("%s:%d", tc.desc, i), func(t *testing.T) {
p := NewPrinter(language.MustParse(pt.tag), Catalog(cat))
if got := p.Sprintf(pt.key, pt.args...); got != pt.want {
t.Errorf("Sprintf(%q, %v) = %s; want %s",
pt.key, pt.args, got, pt.want)
return // Next error will likely be the same.
}
w := &bytes.Buffer{}
p.Fprintf(w, pt.key, pt.args...)
if got := w.String(); got != pt.want {
t.Errorf("Fprintf(%q, %v) = %s; want %s",
pt.key, pt.args, got, pt.want)
}
})
}
}
}
type entry struct{ tag, key, msg string }
func initCat(entries []entry) (*catalog.Builder, []language.Tag) {
tags := []language.Tag{}
cat := catalog.NewBuilder()
for _, e := range entries {
tag := language.MustParse(e.tag)
tags = append(tags, tag)
cat.SetString(tag, e.key, e.msg)
}
return cat, internal.UniqueTags(tags)
}