keii.dev
1use crate::assert_js;
2
3#[test]
4fn unicode1() {
5 assert_js!(
6 r#"
7pub fn emoji() -> String {
8 "\u{1f600}"
9}
10"#,
11 );
12}
13
14#[test]
15fn unicode2() {
16 assert_js!(
17 r#"
18pub fn y_with_dieresis() -> String {
19 "\u{0308}y"
20}
21"#,
22 );
23}
24
25#[test]
26fn ascii_as_unicode_escape_sequence() {
27 assert_js!(
28 r#"
29pub fn y() -> String {
30 "\u{79}"
31}
32"#,
33 )
34}
35
36#[test]
37fn unicode_escape_sequence_6_digits() {
38 assert_js!(
39 r#"
40pub fn unicode_escape_sequence_6_digits() -> String {
41 "\u{10abcd}"
42}
43"#,
44 );
45}
46
47#[test]
48fn string_literals() {
49 assert_js!(
50 r#"
51pub fn go() {
52 "Hello, Gleam!"
53}
54"#,
55 );
56}
57
58#[test]
59fn string_patterns() {
60 assert_js!(
61 r#"
62pub fn go(x) {
63 let assert "Hello" = x
64}
65"#,
66 );
67}
68
69#[test]
70fn equality() {
71 assert_js!(
72 r#"
73pub fn go(a) {
74 a == "ok"
75 a != "ok"
76 a == a
77}
78"#,
79 );
80}
81
82#[test]
83fn case() {
84 assert_js!(
85 r#"
86pub fn go(a) {
87 case a {
88 "" -> 0
89 "one" -> 1
90 "two" -> 2
91 _ -> 3
92 }
93}
94"#,
95 );
96}
97
98#[test]
99fn string_concat() {
100 assert_js!(
101 r#"
102pub fn go() {
103 "Hello, " <> "Joe"
104}
105"#,
106 );
107}
108
109#[test]
110fn string_prefix() {
111 assert_js!(
112 r#"
113pub fn go(x) {
114 case x {
115 "Hello, " <> name -> name
116 _ -> "Unknown"
117 }
118}
119"#,
120 );
121}
122
123#[test]
124fn string_prefix_utf16() {
125 assert_js!(
126 r#"
127pub fn go(x) {
128 case "Θ wibble wobble" {
129 "Θ" <> rest -> rest
130 _ -> ""
131 }
132 case "🫥 is neutral dotted" {
133 "🫥" <> rest -> rest
134 _ -> ""
135 }
136 case "🇺🇸 is a cluster" {
137 "🇺🇸" <> rest -> rest
138 _ -> ""
139 }
140 case "\" is a an escaped quote" {
141 "\"" <> rest -> rest
142 _ -> ""
143 }
144 case "\\ is a an escaped backslash" {
145 "\\" <> rest -> rest
146 _ -> ""
147 }
148}
149"#,
150 );
151}
152
153#[test]
154fn discard_concat_rest_pattern() {
155 // We can discard the right hand side, it parses and type checks ok
156 assert_js!(
157 r#"
158pub fn go(x) {
159 case x {
160 "Hello, " <> _ -> Nil
161 _ -> Nil
162 }
163}
164"#,
165 );
166}
167
168#[test]
169fn string_prefix_assignment() {
170 assert_js!(
171 r#"
172pub fn go(x) {
173 case x {
174 "Hello, " as greeting <> name -> greeting
175 _ -> "Unknown"
176 }
177}
178"#,
179 )
180}
181
182#[test]
183fn string_prefix_assignment_with_utf_escape_sequence() {
184 assert_js!(
185 r#"
186pub fn go(x) {
187 case x {
188 "\u{0032} " as greeting <> name -> greeting
189 "\u{0007ff} " as greeting <> name -> greeting
190 "\u{00ffff} " as greeting <> name -> greeting
191 "\u{10ffff} " as greeting <> name -> greeting
192 _ -> "Unknown"
193 }
194}
195"#,
196 )
197}
198
199#[test]
200fn string_prefix_shadowing() {
201 assert_js!(
202 r#"
203pub fn go(x) {
204 case x {
205 "Hello, " as x <> name -> x
206 _ -> "Unknown"
207 }
208}
209"#,
210 )
211}
212
213// https://github.com/gleam-lang/gleam/issues/2471
214#[test]
215fn string_prefix_assignment_with_multiple_subjects() {
216 assert_js!(
217 r#"
218pub fn go(x) {
219 case x {
220 "1" as prefix <> _ | "11" as prefix <> _ -> prefix
221 _ -> "Unknown"
222 }
223}
224"#,
225 )
226}
227
228#[test]
229fn const_concat() {
230 assert_js!(
231 r#"
232pub const cute = "cute"
233pub const cute_bee = cute <> "bee"
234
235pub fn main() {
236 cute_bee
237}
238"#
239 );
240}
241
242#[test]
243fn const_concat_multiple() {
244 assert_js!(
245 r#"
246pub const cute = "cute"
247pub const cute_bee = cute <> "bee"
248pub const cute_cute_bee_buzz = cute <> cute_bee <> "buzz"
249
250pub fn main() {
251 cute_cute_bee_buzz
252}
253"#
254 );
255}