1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
use macros::hashmap;
use std::collections::HashMap;
#[test]
fn test_empty() {
let expected: HashMap<u32, u32> = HashMap::new();
let computed: HashMap<u32, u32> = hashmap!();
assert_eq!(computed, expected);
}
#[test]
fn test_single() {
let mut expected = HashMap::new();
expected.insert(1, "one");
assert_eq!(hashmap!(1 => "one"), expected);
}
#[test]
fn test_no_trailing_comma() {
let mut expected = HashMap::new();
expected.insert(1, "one");
expected.insert(2, "two");
assert_eq!(hashmap!(1 => "one", 2 => "two"), expected);
}
#[test]
fn test_trailing_comma() {
let mut expected = HashMap::new();
expected.insert('h', 89);
expected.insert('a', 1);
expected.insert('s', 19);
expected.insert('h', 8);
assert_eq!(
hashmap!(
'h' => 89,
'a' => 1,
's' => 19,
'h' => 8,
),
expected
);
}
#[test]
fn test_nested() {
let mut expected = HashMap::new();
expected.insert("non-empty", {
let mut subhashmap = HashMap::new();
subhashmap.insert(23, 623);
subhashmap.insert(34, 21);
subhashmap
});
expected.insert("empty", HashMap::new());
assert_eq!(
hashmap!(
"non-empty" => hashmap!(
23 => 623,
34 => 21
),
"empty" => hashmap!()
),
expected
);
}
mod test {
#[test]
fn type_not_in_scope() {
use macros::hashmap;
let _empty: ::std::collections::HashMap<(), ()> = hashmap!();
let _without_comma = hashmap!(23=> 623, 34 => 21);
let _with_trailing = hashmap!(23 => 623, 34 => 21,);
}
#[test]
fn test_macro_out_of_scope() {
let _empty: ::std::collections::HashMap<(), ()> = macros::hashmap!();
let _without_comma = macros::hashmap!(23=> 623, 34 => 21);
let _with_trailing = macros::hashmap!(23 => 623, 34 => 21,);
}
}
#[test]
fn test_type_override() {
// The macro should always use std::collections::HashMap and ignore crate::std::collections::HashMap
mod std {
pub mod collections {
pub struct HashMap;
impl HashMap {
#[allow(dead_code)]
pub fn new() -> Self {
panic!("Do not allow users to override which HashMap is used");
}
#[allow(dead_code)]
pub fn insert<K, V>(&mut self, _key: K, _val: V) {
panic!("Do not allow users to override which HashMap is used");
}
}
}
}
let _empty: ::std::collections::HashMap<(), ()> = hashmap!();
let _without_comma = hashmap!(1 => 2, 3 => 4);
let _with_trailing = hashmap!(1 => 2, 3 => 4,);
}
#[test]
fn test_compile_fails_comma_sep() {
simple_trybuild::compile_fail("comma-sep.rs");
}
#[test]
fn test_compile_fails_double_commas() {
simple_trybuild::compile_fail("double-commas.rs");
}
#[test]
fn test_compile_fails_only_comma() {
simple_trybuild::compile_fail("only-comma.rs");
}
#[test]
fn test_compile_fails_single_argument() {
simple_trybuild::compile_fail("single-argument.rs");
}
#[test]
fn test_compile_fails_triple_arguments() {
simple_trybuild::compile_fail("triple-arguments.rs");
}
#[test]
fn test_compile_fails_only_arrow() {
simple_trybuild::compile_fail("only-arrow.rs");
}
#[test]
fn test_compile_fails_two_arrows() {
simple_trybuild::compile_fail("two-arrows.rs");
}
#[test]
fn test_compile_fails_leading_comma() {
simple_trybuild::compile_fail("leading-comma.rs");
}
#[test]
fn test_compile_fails_no_comma() {
simple_trybuild::compile_fail("no-comma.rs");
}
#[test]
fn test_compile_fails_missing_argument() {
simple_trybuild::compile_fail("missing-argument.rs");
}
mod simple_trybuild {
use std::path::PathBuf;
use std::process::Command;
pub fn compile_fail(file_name: &str) {
let invalid_path: PathBuf = ["tests", "invalid"].iter().collect::<PathBuf>();
let mut file_path = invalid_path.clone();
file_path.push(file_name);
assert!(
file_path.exists(),
"{:?} does not exist.",
file_path.into_os_string()
);
let test_name = file_name.replace(".", "-");
let macros_dir = ["..", "..", "target", "tests", "macros"]
.iter()
.collect::<PathBuf>();
let result = Command::new("cargo")
.current_dir(invalid_path)
.arg("build")
.arg("--offline")
.arg("--target-dir")
.arg(macros_dir)
.arg("--bin")
.arg(test_name)
.output();
if let Ok(result) = result {
assert!(
!result.status.success(),
"Expected {:?} to fail to compile, but it succeeded.",
file_path
);
} else {
panic!("Running subprocess failed.");
}
}
}
|
