1 use super::AutoCfg;
2 use std::env;
3
4 impl AutoCfg {
core_std(&self, path: &str) -> String5 fn core_std(&self, path: &str) -> String {
6 let krate = if self.no_std { "core" } else { "std" };
7 format!("{}::{}", krate, path)
8 }
9
assert_std(&self, probe_result: bool)10 fn assert_std(&self, probe_result: bool) {
11 assert_eq!(!self.no_std, probe_result);
12 }
13
assert_min(&self, major: usize, minor: usize, probe_result: bool)14 fn assert_min(&self, major: usize, minor: usize, probe_result: bool) {
15 assert_eq!(self.probe_rustc_version(major, minor), probe_result);
16 }
17
for_test() -> Result<Self, super::error::Error>18 fn for_test() -> Result<Self, super::error::Error> {
19 match env::var_os("TESTS_TARGET_DIR") {
20 Some(d) => Self::with_dir(d),
21 None => Self::with_dir("target"),
22 }
23 }
24 }
25
26 #[test]
autocfg_version()27 fn autocfg_version() {
28 let ac = AutoCfg::for_test().unwrap();
29 println!("version: {:?}", ac.rustc_version);
30 assert!(ac.probe_rustc_version(1, 0));
31 }
32
33 #[test]
version_cmp()34 fn version_cmp() {
35 use super::version::Version;
36 let v123 = Version::new(1, 2, 3);
37
38 assert!(Version::new(1, 0, 0) < v123);
39 assert!(Version::new(1, 2, 2) < v123);
40 assert!(Version::new(1, 2, 3) == v123);
41 assert!(Version::new(1, 2, 4) > v123);
42 assert!(Version::new(1, 10, 0) > v123);
43 assert!(Version::new(2, 0, 0) > v123);
44 }
45
46 #[test]
probe_add()47 fn probe_add() {
48 let ac = AutoCfg::for_test().unwrap();
49 let add = ac.core_std("ops::Add");
50 let add_rhs = add.clone() + "<i32>";
51 let add_rhs_output = add.clone() + "<i32, Output = i32>";
52 let dyn_add_rhs_output = "dyn ".to_string() + &*add_rhs_output;
53 assert!(ac.probe_path(&add));
54 assert!(ac.probe_trait(&add));
55 assert!(ac.probe_trait(&add_rhs));
56 assert!(ac.probe_trait(&add_rhs_output));
57 ac.assert_min(1, 27, ac.probe_type(&dyn_add_rhs_output));
58 }
59
60 #[test]
probe_as_ref()61 fn probe_as_ref() {
62 let ac = AutoCfg::for_test().unwrap();
63 let as_ref = ac.core_std("convert::AsRef");
64 let as_ref_str = as_ref.clone() + "<str>";
65 let dyn_as_ref_str = "dyn ".to_string() + &*as_ref_str;
66 assert!(ac.probe_path(&as_ref));
67 assert!(ac.probe_trait(&as_ref_str));
68 assert!(ac.probe_type(&as_ref_str));
69 ac.assert_min(1, 27, ac.probe_type(&dyn_as_ref_str));
70 }
71
72 #[test]
probe_i128()73 fn probe_i128() {
74 let ac = AutoCfg::for_test().unwrap();
75 let i128_path = ac.core_std("i128");
76 ac.assert_min(1, 26, ac.probe_path(&i128_path));
77 ac.assert_min(1, 26, ac.probe_type("i128"));
78 }
79
80 #[test]
probe_sum()81 fn probe_sum() {
82 let ac = AutoCfg::for_test().unwrap();
83 let sum = ac.core_std("iter::Sum");
84 let sum_i32 = sum.clone() + "<i32>";
85 let dyn_sum_i32 = "dyn ".to_string() + &*sum_i32;
86 ac.assert_min(1, 12, ac.probe_path(&sum));
87 ac.assert_min(1, 12, ac.probe_trait(&sum));
88 ac.assert_min(1, 12, ac.probe_trait(&sum_i32));
89 ac.assert_min(1, 12, ac.probe_type(&sum_i32));
90 ac.assert_min(1, 27, ac.probe_type(&dyn_sum_i32));
91 }
92
93 #[test]
probe_std()94 fn probe_std() {
95 let ac = AutoCfg::for_test().unwrap();
96 ac.assert_std(ac.probe_sysroot_crate("std"));
97 }
98
99 #[test]
probe_alloc()100 fn probe_alloc() {
101 let ac = AutoCfg::for_test().unwrap();
102 ac.assert_min(1, 36, ac.probe_sysroot_crate("alloc"));
103 }
104
105 #[test]
probe_bad_sysroot_crate()106 fn probe_bad_sysroot_crate() {
107 let ac = AutoCfg::for_test().unwrap();
108 assert!(!ac.probe_sysroot_crate("doesnt_exist"));
109 }
110
111 #[test]
probe_no_std()112 fn probe_no_std() {
113 let ac = AutoCfg::for_test().unwrap();
114 assert!(ac.probe_type("i32"));
115 assert!(ac.probe_type("[i32]"));
116 ac.assert_std(ac.probe_type("Vec<i32>"));
117 }
118
119 #[test]
probe_expression()120 fn probe_expression() {
121 let ac = AutoCfg::for_test().unwrap();
122 assert!(ac.probe_expression(r#""test".trim_left()"#));
123 ac.assert_min(1, 30, ac.probe_expression(r#""test".trim_start()"#));
124 ac.assert_std(ac.probe_expression("[1, 2, 3].to_vec()"));
125 }
126
127 #[test]
probe_constant()128 fn probe_constant() {
129 let ac = AutoCfg::for_test().unwrap();
130 assert!(ac.probe_constant("1 + 2 + 3"));
131 ac.assert_min(1, 33, ac.probe_constant("{ let x = 1 + 2 + 3; x * x }"));
132 ac.assert_min(1, 39, ac.probe_constant(r#""test".len()"#));
133 }
134
135 #[test]
dir_does_not_contain_target()136 fn dir_does_not_contain_target() {
137 assert!(!super::dir_contains_target(
138 &Some("x86_64-unknown-linux-gnu".into()),
139 &"/project/target/debug/build/project-ea75983148559682/out".into(),
140 None,
141 ));
142 }
143
144 #[test]
dir_does_contain_target()145 fn dir_does_contain_target() {
146 assert!(super::dir_contains_target(
147 &Some("x86_64-unknown-linux-gnu".into()),
148 &"/project/target/x86_64-unknown-linux-gnu/debug/build/project-0147aca016480b9d/out".into(),
149 None,
150 ));
151 }
152
153 #[test]
dir_does_not_contain_target_with_custom_target_dir()154 fn dir_does_not_contain_target_with_custom_target_dir() {
155 assert!(!super::dir_contains_target(
156 &Some("x86_64-unknown-linux-gnu".into()),
157 &"/project/custom/debug/build/project-ea75983148559682/out".into(),
158 Some("custom".into()),
159 ));
160 }
161
162 #[test]
dir_does_contain_target_with_custom_target_dir()163 fn dir_does_contain_target_with_custom_target_dir() {
164 assert!(super::dir_contains_target(
165 &Some("x86_64-unknown-linux-gnu".into()),
166 &"/project/custom/x86_64-unknown-linux-gnu/debug/build/project-0147aca016480b9d/out".into(),
167 Some("custom".into()),
168 ));
169 }
170