format_test.go

Documentation: golang.org/x/text/currency

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package currency
     6  
     7  import (
     8  	"testing"
     9  
    10  	"golang.org/x/text/language"
    11  	"golang.org/x/text/message"
    12  )
    13  
    14  var (
    15  	de    = language.German
    16  	en    = language.English
    17  	fr    = language.French
    18  	de_CH = language.MustParse("de-CH")
    19  	en_US = language.AmericanEnglish
    20  	en_GB = language.BritishEnglish
    21  	en_AU = language.MustParse("en-AU")
    22  	und   = language.Und
    23  )
    24  
    25  func TestFormatting(t *testing.T) {
    26  	testCases := []struct {
    27  		tag    language.Tag
    28  		value  interface{}
    29  		format Formatter
    30  		want   string
    31  	}{
    32  		0: {en, USD.Amount(0.1), nil, "USD 0.10"},
    33  		1: {en, XPT.Amount(1.0), Symbol, "XPT 1.00"},
    34  
    35  		2: {en, USD.Amount(2.0), ISO, "USD 2.00"},
    36  		3: {und, USD.Amount(3.0), Symbol, "US$ 3.00"},
    37  		4: {en, USD.Amount(4.0), Symbol, "$ 4.00"},
    38  
    39  		5: {en, USD.Amount(5.20), NarrowSymbol, "$ 5.20"},
    40  		6: {en, AUD.Amount(6.20), Symbol, "A$ 6.20"},
    41  
    42  		7: {en_AU, AUD.Amount(7.20), Symbol, "$ 7.20"},
    43  		8: {en_GB, USD.Amount(8.20), Symbol, "US$ 8.20"},
    44  
    45  		9:  {en, 9.0, Symbol.Default(EUR), "€ 9.00"},
    46  		10: {en, 10.123, Symbol.Default(KRW), "₩ 10"},
    47  		11: {fr, 11.52, Symbol.Default(TWD), "TWD 11,52"},
    48  		12: {en, 12.123, Symbol.Default(czk), "CZK 12.12"},
    49  		13: {en, 13.123, Symbol.Default(czk).Kind(Cash), "CZK 13"},
    50  		14: {en, 14.12345, ISO.Default(MustParseISO("CLF")), "CLF 14.1235"},
    51  		15: {en, USD.Amount(15.00), ISO.Default(TWD), "USD 15.00"},
    52  		16: {en, KRW.Amount(16.00), ISO.Kind(Cash), "KRW 16"},
    53  
    54  		17: {en, USD, nil, "USD"},
    55  		18: {en, USD, ISO, "USD"},
    56  		19: {en, USD, Symbol, "$"},
    57  		20: {en_GB, USD, Symbol, "US$"},
    58  		21: {en_AU, USD, NarrowSymbol, "$"},
    59  
    60  		// https://en.wikipedia.org/wiki/Decimal_separator
    61  		22: {de, EUR.Amount(1234567.89), nil, "EUR 1.234.567,89"},
    62  		23: {fr, EUR.Amount(1234567.89), nil, "EUR 1\u00a0234\u00a0567,89"},
    63  		24: {en_AU, EUR.Amount(1234567.89), nil, "EUR 1,234,567.89"},
    64  		25: {de_CH, EUR.Amount(1234567.89), nil, "EUR 1’234’567.89"},
    65  
    66  		// https://en.wikipedia.org/wiki/Cash_rounding
    67  		26: {de, NOK.Amount(2.49), ISO.Kind(Cash), "NOK 2"},
    68  		27: {de, NOK.Amount(2.50), ISO.Kind(Cash), "NOK 3"},
    69  		28: {de, DKK.Amount(0.24), ISO.Kind(Cash), "DKK 0,00"},
    70  		29: {de, DKK.Amount(0.25), ISO.Kind(Cash), "DKK 0,50"},
    71  
    72  		// integers
    73  		30: {de, EUR.Amount(1234567), nil, "EUR 1.234.567,00"},
    74  		31: {en, CNY.Amount(0), NarrowSymbol, "¥ 0.00"},
    75  		32: {en, CNY.Amount(0), Symbol, "CN¥ 0.00"},
    76  	}
    77  	for i, tc := range testCases {
    78  		p := message.NewPrinter(tc.tag)
    79  		v := tc.value
    80  		if tc.format != nil {
    81  			v = tc.format(v)
    82  		}
    83  		if got := p.Sprint(v); got != tc.want {
    84  			t.Errorf("%d: got %q; want %q", i, got, tc.want)
    85  		}
    86  	}
    87  }
    88
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