1// Copyright 2012 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
5package present
6
7import (
8	"fmt"
9	"reflect"
10	"testing"
11)
12
13func TestSplit(t *testing.T) {
14	var tests = []struct {
15		in  string
16		out []string
17	}{
18		{"", []string{}},
19		{" ", []string{" "}},
20		{"abc", []string{"abc"}},
21		{"abc def", []string{"abc", " ", "def"}},
22		{"abc def ", []string{"abc", " ", "def", " "}},
23		{"hey [[http://golang.org][Gophers]] around",
24			[]string{"hey", " ", "[[http://golang.org][Gophers]]", " ", "around"}},
25		{"A [[http://golang.org/doc][two words]] link",
26			[]string{"A", " ", "[[http://golang.org/doc][two words]]", " ", "link"}},
27		{"Visit [[http://golang.org/doc]] now",
28			[]string{"Visit", " ", "[[http://golang.org/doc]]", " ", "now"}},
29		{"not [[http://golang.org/doc][a [[link]] ]] around",
30			[]string{"not", " ", "[[http://golang.org/doc][a [[link]]", " ", "]]", " ", "around"}},
31		{"[[http://golang.org][foo bar]]",
32			[]string{"[[http://golang.org][foo bar]]"}},
33		{"ends with [[http://golang.org][link]]",
34			[]string{"ends", " ", "with", " ", "[[http://golang.org][link]]"}},
35		{"my talk ([[http://talks.golang.org/][slides here]])",
36			[]string{"my", " ", "talk", " ", "(", "[[http://talks.golang.org/][slides here]]", ")"}},
37	}
38	for _, test := range tests {
39		out := split(test.in)
40		if !reflect.DeepEqual(out, test.out) {
41			t.Errorf("split(%q):\ngot\t%q\nwant\t%q", test.in, out, test.out)
42		}
43	}
44}
45
46func TestFont(t *testing.T) {
47	var tests = []struct {
48		in  string
49		out string
50	}{
51		{"", ""},
52		{" ", " "},
53		{"\tx", "\tx"},
54		{"_a_", "<i>a</i>"},
55		{"*a*", "<b>a</b>"},
56		{"`a`", "<code>a</code>"},
57		{"_a_b_", "<i>a b</i>"},
58		{"_a__b_", "<i>a_b</i>"},
59		{"_a___b_", "<i>a_ b</i>"},
60		{"*a**b*?", "<b>a*b</b>?"},
61		{"_a_<>_b_.", "<i>a <> b</i>."},
62		{"(_a_)", "(<i>a</i>)"},
63		{"((_a_), _b_, _c_).", "((<i>a</i>), <i>b</i>, <i>c</i>)."},
64		{"(_a)", "(_a)"},
65		{"(_a)", "(_a)"},
66		{"_Why_use_scoped__ptr_? Use plain ***ptr* instead.", "<i>Why use scoped_ptr</i>? Use plain <b>*ptr</b> instead."},
67		{"_hey_ [[http://golang.org][*Gophers*]] *around*",
68			`<i>hey</i> <a href="http://golang.org" target="_blank"><b>Gophers</b></a> <b>around</b>`},
69		{"_hey_ [[http://golang.org][so _many_ *Gophers*]] *around*",
70			`<i>hey</i> <a href="http://golang.org" target="_blank">so <i>many</i> <b>Gophers</b></a> <b>around</b>`},
71		{"Visit [[http://golang.org]] now",
72			`Visit <a href="http://golang.org" target="_blank">golang.org</a> now`},
73		{"my talk ([[http://talks.golang.org/][slides here]])",
74			`my talk (<a href="http://talks.golang.org/" target="_blank">slides here</a>)`},
75		{"Markup—_especially_italic_text_—can easily be overused.",
76			`Markup—<i>especially italic text</i>—can easily be overused.`},
77		{"`go`get`'s codebase", // ascii U+0027 ' before s
78			`<code>go get</code>'s codebase`},
79		{"`go`get`’s codebase", // unicode right single quote U+2019 ’ before s
80			`<code>go get</code>’s codebase`},
81		{"a_variable_name",
82			`a_variable_name`},
83	}
84	for _, test := range tests {
85		out := font(test.in)
86		if out != test.out {
87			t.Errorf("font(%q):\ngot\t%q\nwant\t%q", test.in, out, test.out)
88		}
89	}
90}
91
92func TestStyle(t *testing.T) {
93	var tests = []struct {
94		in  string
95		out string
96	}{
97		{"", ""},
98		{" ", " "},
99		{"\tx", "\tx"},
100		{"_a_", "<i>a</i>"},
101		{"*a*", "<b>a</b>"},
102		{"`a`", "<code>a</code>"},
103		{"_a_b_", "<i>a b</i>"},
104		{"_a__b_", "<i>a_b</i>"},
105		{"_a___b_", "<i>a_ b</i>"},
106		{"*a**b*?", "<b>a*b</b>?"},
107		{"_a_<>_b_.", "<i>a &lt;&gt; b</i>."},
108		{"(_a_<>_b_)", "(<i>a &lt;&gt; b</i>)"},
109		{"((_a_), _b_, _c_).", "((<i>a</i>), <i>b</i>, <i>c</i>)."},
110		{"(_a)", "(_a)"},
111	}
112	for _, test := range tests {
113		out := string(Style(test.in))
114		if out != test.out {
115			t.Errorf("style(%q):\ngot\t%q\nwant\t%q", test.in, out, test.out)
116		}
117	}
118}
119
120func ExampleStyle() {
121	const s = "*Gophers* are _clearly_ > *cats*!"
122	fmt.Println(Style(s))
123	// Output: <b>Gophers</b> are <i>clearly</i> &gt; <b>cats</b>!
124}
125