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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
use std::fmt;
use crate::reflection;
use crate::utils;
use crate::Predicate;
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct IsEmptyPredicate {}
impl Predicate<str> for IsEmptyPredicate {
fn eval(&self, variable: &str) -> bool {
variable.is_empty()
}
fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> {
utils::default_find_case(self, expected, variable)
}
}
impl reflection::PredicateReflection for IsEmptyPredicate {}
impl fmt::Display for IsEmptyPredicate {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "var.is_empty()")
}
}
pub fn is_empty() -> IsEmptyPredicate {
IsEmptyPredicate {}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct StartsWithPredicate {
pattern: String,
}
impl Predicate<str> for StartsWithPredicate {
fn eval(&self, variable: &str) -> bool {
variable.starts_with(&self.pattern)
}
fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> {
utils::default_find_case(self, expected, variable)
}
}
impl reflection::PredicateReflection for StartsWithPredicate {}
impl fmt::Display for StartsWithPredicate {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "var.starts_with({:?})", self.pattern)
}
}
pub fn starts_with<P>(pattern: P) -> StartsWithPredicate
where
P: Into<String>,
{
StartsWithPredicate {
pattern: pattern.into(),
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct EndsWithPredicate {
pattern: String,
}
impl Predicate<str> for EndsWithPredicate {
fn eval(&self, variable: &str) -> bool {
variable.ends_with(&self.pattern)
}
fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> {
utils::default_find_case(self, expected, variable)
}
}
impl reflection::PredicateReflection for EndsWithPredicate {}
impl fmt::Display for EndsWithPredicate {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "var.ends_with({:?})", self.pattern)
}
}
pub fn ends_with<P>(pattern: P) -> EndsWithPredicate
where
P: Into<String>,
{
EndsWithPredicate {
pattern: pattern.into(),
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ContainsPredicate {
pattern: String,
}
impl ContainsPredicate {
pub fn count(self, count: usize) -> MatchesPredicate {
MatchesPredicate {
pattern: self.pattern,
count,
}
}
}
impl Predicate<str> for ContainsPredicate {
fn eval(&self, variable: &str) -> bool {
variable.contains(&self.pattern)
}
fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> {
utils::default_find_case(self, expected, variable)
}
}
impl reflection::PredicateReflection for ContainsPredicate {}
impl fmt::Display for ContainsPredicate {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "var.contains({:?})", self.pattern)
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct MatchesPredicate {
pattern: String,
count: usize,
}
impl Predicate<str> for MatchesPredicate {
fn eval(&self, variable: &str) -> bool {
variable.matches(&self.pattern).count() == self.count
}
fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<reflection::Case<'a>> {
let actual_count = variable.matches(&self.pattern).count();
let result = self.count == actual_count;
if result == expected {
Some(
reflection::Case::new(Some(self), result)
.add_product(reflection::Product::new("actual count", actual_count)),
)
} else {
None
}
}
}
impl reflection::PredicateReflection for MatchesPredicate {
fn parameters<'a>(&'a self) -> Box<dyn Iterator<Item = reflection::Parameter<'a>> + 'a> {
let params = vec![reflection::Parameter::new("count", &self.count)];
Box::new(params.into_iter())
}
}
impl fmt::Display for MatchesPredicate {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "var.contains({})", self.pattern)
}
}
pub fn contains<P>(pattern: P) -> ContainsPredicate
where
P: Into<String>,
{
ContainsPredicate {
pattern: pattern.into(),
}
}