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
|
#![allow(dead_code)]
#![allow(non_upper_case_globals)]
extern crate yaml_rust;
use yaml_rust::parser::{Event, EventReceiver, Parser};
use yaml_rust::scanner::TScalarStyle;
// These names match the names used in the C++ test suite.
#[cfg_attr(feature = "cargo-clippy", allow(enum_variant_names))]
#[derive(Clone, PartialEq, PartialOrd, Debug)]
enum TestEvent {
OnDocumentStart,
OnDocumentEnd,
OnSequenceStart,
OnSequenceEnd,
OnMapStart,
OnMapEnd,
OnScalar,
OnAlias,
OnNull,
}
struct YamlChecker {
pub evs: Vec<TestEvent>,
}
impl EventReceiver for YamlChecker {
fn on_event(&mut self, ev: Event) {
let tev = match ev {
Event::DocumentStart => TestEvent::OnDocumentStart,
Event::DocumentEnd => TestEvent::OnDocumentEnd,
Event::SequenceStart(..) => TestEvent::OnSequenceStart,
Event::SequenceEnd => TestEvent::OnSequenceEnd,
Event::MappingStart(..) => TestEvent::OnMapStart,
Event::MappingEnd => TestEvent::OnMapEnd,
Event::Scalar(ref v, style, _, _) => {
if v == "~" && style == TScalarStyle::Plain {
TestEvent::OnNull
} else {
TestEvent::OnScalar
}
}
Event::Alias(_) => TestEvent::OnAlias,
_ => return, // ignore other events
};
self.evs.push(tev);
}
}
fn str_to_test_events(docs: &str) -> Vec<TestEvent> {
let mut p = YamlChecker { evs: Vec::new() };
let mut parser = Parser::new(docs.chars());
parser.load(&mut p, true).unwrap();
p.evs
}
macro_rules! assert_next {
($v:expr, $p:pat) => {
match $v.next().unwrap() {
$p => {}
e => {
panic!("unexpected event: {:?}", e);
}
}
};
}
// auto generated from handler_spec_test.cpp
include!("specexamples.rs.inc");
include!("spec_test.rs.inc");
// hand-crafted tests
//#[test]
//fn test_hc_alias() {
//}
#[test]
fn test_mapvec_legal() {
use yaml_rust::yaml::{Array, Hash, Yaml};
use yaml_rust::{YamlEmitter, YamlLoader};
// Emitting a `map<map<seq<_>>, _>` should result in legal yaml that
// we can parse.
let mut key = Array::new();
key.push(Yaml::Integer(1));
key.push(Yaml::Integer(2));
key.push(Yaml::Integer(3));
let mut keyhash = Hash::new();
keyhash.insert(Yaml::String("key".into()), Yaml::Array(key));
let mut val = Array::new();
val.push(Yaml::Integer(4));
val.push(Yaml::Integer(5));
val.push(Yaml::Integer(6));
let mut hash = Hash::new();
hash.insert(Yaml::Hash(keyhash), Yaml::Array(val));
let mut out_str = String::new();
{
let mut emitter = YamlEmitter::new(&mut out_str);
emitter.dump(&Yaml::Hash(hash)).unwrap();
}
// At this point, we are tempted to naively render like this:
//
// ```yaml
// ---
// {key:
// - 1
// - 2
// - 3}:
// - 4
// - 5
// - 6
// ```
//
// However, this doesn't work, because the key sequence [1, 2, 3] is
// rendered in block mode, which is not legal (as far as I can tell)
// inside the flow mode of the key. We need to either fully render
// everything that's in a key in flow mode (which may make for some
// long lines), or use the explicit map identifier '?':
//
// ```yaml
// ---
// ?
// key:
// - 1
// - 2
// - 3
// :
// - 4
// - 5
// - 6
// ```
YamlLoader::load_from_str(&out_str).unwrap();
}
|
