core-dev 0.0.1

core-dev library is an utility library for rust. It contains a lot of useful functions and APIs to speed up development cycle.
Documentation 
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
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311

use pretty_assertions::assert_eq;
use rstest::rstest;


#[cfg(test)]
mod index_of_vector_trait {
    use super::assert_eq;
    use core_dev::traits::IndexOfVector;
    use super::rstest;

    #[cfg(test)]
    mod method_index_of {
        use super::IndexOfVector;
        use super::assert_eq;

        #[test]
        fn against_vec_i32() {
            let some_vector = vec![123, 123, 33, 22, 11, 20i32];
            // note that you can call index_of() method on vector
            // this method is not in the std lib
            let index = some_vector.index_of(&33);
            if let Some(index) = index {
                assert_eq!(index, 2);
            } else {
                assert_eq!(index, None);
            }
        }

        #[test]
        fn against_vec_usize() {
            let some_vector = vec![123, 123, 33, 22, 11, 20usize];
            // note that you can call index_of() method on vector
            // this method is not in the std lib
            let index = some_vector.index_of(&33);
            if let Some(index) = index {
                assert_eq!(index, 2);
            } else {
                assert_eq!(index, None);
            }
        }
    }


    #[cfg(test)]
    mod method_index_from {
        use super::IndexOfVector;
        use super::assert_eq;


        #[test]
        fn against_vec_i32() {
            let some_vector: Vec<i32> = vec![2, 0, 2, 2, 1, 2];
            // note that you can call index_of() method on vector
            // this method is not in the std lib
            let index = some_vector.index_from(&2, 0).unwrap();
            assert_eq!(index, 0);

            let index = some_vector.index_from(&2, 1).unwrap();
            assert_eq!(index, 2);

            let index = some_vector.index_from(&2, 2).unwrap();
            assert_eq!(index, 2);

            let index = some_vector.index_from(&2, 3).unwrap();
            assert_eq!(index, 3);

            let index = some_vector.index_from(&2, 4).unwrap();
            assert_eq!(index, 5);
        }
    }


    #[cfg(test)]
    mod method_rindex_of {
        use super::IndexOfVector;
        use super::assert_eq;

        #[test]
        fn against_vec_i32() {
            let some_vector: Vec<i32> = vec![2, 0, 2, 2, 1, 2];
            let index = some_vector.rindex_of(&2).unwrap();
            assert_eq!(index, some_vector.len() - 1);
        }
    }


    #[cfg(test)]
    mod method_rindex_from {
        use super::IndexOfVector;
        use super::assert_eq;
        use super::rstest;

        #[rstest]
        #[case(vec![2, 0, 2, 2, 1, 3], 2, 2, Some(3))]
        #[case(vec![2, 0, 2, 2, 1, 3], 2, 3, Some(3))]
        #[case(vec![2, 0, 2, 2, 1, 3], 2, 4, None)]
        fn against_vec_i32(
            #[case] vector_i32: Vec<i32>,
            #[case] element: i32,
            #[case] start_index: usize,
            #[case] expected_index: Option<usize>,
        ) {
            let found_index =
                vector_i32.rindex_from(&element, start_index);
            assert_eq!(found_index, expected_index);
        }
    }
}

#[cfg(test)]
mod max_vector_trait {
    use core_dev::traits::MaxVector;
    use super::assert_eq;
    use super::rstest;


    #[rstest]
    #[case(vec![2, 0, 2, 2, 1, 3i8], Some(3))]
    #[case(vec![2, 0, 2, 8, 1, 3i8], Some(8))]
    #[case(vec![], None)]
    fn against_vec_i8(
        #[case] vector: Vec<i8>,
        #[case] expected_max: Option<i8>,
    ) {
        let found_index = vector.find_max();
        assert_eq!(found_index, expected_max);
    }


    #[rstest]
    #[case(vec![2, 0, 2, 2, 1, 3i16], Some(3))]
    #[case(vec![2, 0, 2, 8, 1, 3i16], Some(8))]
    #[case(vec![], None)]
    fn against_vec_i16(
        #[case] vector: Vec<i16>,
        #[case] expected_max: Option<i16>,
    ) {
        let found_index = vector.find_max();
        assert_eq!(found_index, expected_max);
    }


    #[rstest]
    #[case(vec![2, 0, 2, 2, 1, 3], Some(3))]
    #[case(vec![2, 0, 2, 8, 1, 3], Some(8))]
    #[case(vec![], None)]
    fn against_vec_i32(
        #[case] vector: Vec<i32>,
        #[case] expected_max: Option<i32>,
    ) {
        let found_index = vector.find_max();
        assert_eq!(found_index, expected_max);
    }


    #[rstest]
    #[case(vec![2, 0, 2, 2, 1, 3i64], Some(3))]
    #[case(vec![2, 0, 2, 8, 1, 3i64], Some(8))]
    #[case(vec![], None)]
    fn against_vec_i64(
        #[case] vector: Vec<i64>,
        #[case] expected_max: Option<i64>,
    ) {
        let found_index = vector.find_max();
        assert_eq!(found_index, expected_max);
    }


    #[rstest]
    #[case(vec![2, 0, 2, 2, 1, 3i128], Some(3))]
    #[case(vec![2, 0, 2, 8, 1, 3i128], Some(8))]
    #[case(vec![], None)]
    fn against_vec_i128(
        #[case] vector: Vec<i128>,
        #[case] expected_max: Option<i128>,
    ) {
        let found_index = vector.find_max();
        assert_eq!(found_index, expected_max);
    }
}

#[cfg(test)]
mod string_extended_trait {
    use super::assert_eq;
    use super::rstest;
    use core_dev::traits::StringExtended;

    #[cfg(test)]
    mod method_split_lines {
        use super::assert_eq;
        use super::rstest;
        use core_dev::traits::StringExtended;

        #[test]
        fn against_string() {
            let some_string =
                String::from("hello\nworld\nthese\nare\nsome\nlines");
            let mut lines = some_string.split_lines().into_iter();
            assert_eq!(lines.next(), Some("hello".to_string()));
            assert_eq!(lines.next(), Some("world".to_string()));
            assert_eq!(lines.next(), Some("these".to_string()));
            assert_eq!(lines.next(), Some("are".to_string()));
            assert_eq!(lines.next(), Some("some".to_string()));
            assert_eq!(lines.next(), Some("lines".to_string()));
            assert_eq!(lines.next(), None);
        }

        #[test]
        fn against_multiline_string() {
            let some_string = String::from(
                "hello
world
these
are
some
lines",
            );
            let mut lines = some_string.split_lines().into_iter();
            assert_eq!(lines.next(), Some("hello".to_string()));
            assert_eq!(lines.next(), Some("world".to_string()));
            assert_eq!(lines.next(), Some("these".to_string()));
            assert_eq!(lines.next(), Some("are".to_string()));
            assert_eq!(lines.next(), Some("some".to_string()));
            assert_eq!(lines.next(), Some("lines".to_string()));
            assert_eq!(lines.next(), None);
        }

        #[test]
        fn against_str() {
            let some_string = "hello\nworld\nthese\nare\nsome\nlines";
            let mut lines = some_string.split_lines().into_iter();
            assert_eq!(lines.next(), Some("hello".to_string()));
            assert_eq!(lines.next(), Some("world".to_string()));
            assert_eq!(lines.next(), Some("these".to_string()));
            assert_eq!(lines.next(), Some("are".to_string()));
            assert_eq!(lines.next(), Some("some".to_string()));
            assert_eq!(lines.next(), Some("lines".to_string()));
            assert_eq!(lines.next(), None);
        }

        #[test]
        fn against_str_multiline() {
            let some_string = "hello
world
these
are
some
lines";
            let mut lines = some_string.split_lines().into_iter();

            assert_eq!(lines.next(), Some("hello".to_string()));
            assert_eq!(lines.next(), Some("world".to_string()));
            assert_eq!(lines.next(), Some("these".to_string()));
            assert_eq!(lines.next(), Some("are".to_string()));
            assert_eq!(lines.next(), Some("some".to_string()));
            assert_eq!(lines.next(), Some("lines".to_string()));
            assert_eq!(lines.next(), None);
        }
    }


    #[cfg(test)]
    mod method_get_char {
        use std::ops::Index;

        use super::assert_eq;
        use super::rstest;
        use super::StringExtended;

        #[test]
        fn against_string() {
            let some_string = String::from("rust is great");
            let found_char = some_string.get_char(0).unwrap();
            assert_eq!(found_char, 'r');
        }

        #[test]
        fn against_str() {
            let some_string = "rust is great";
            let found_char = some_string.get_char(0).unwrap();
            assert_eq!(found_char, 'r');
        }
    }


    #[cfg(test)]
    mod method_capitalize {
        use super::assert_eq;
        use super::rstest;
        use super::StringExtended;

        #[test]
        fn against_string() {
            let some_string = String::from("rust is great");
            let capitalized = some_string.capitalize();
            assert_eq!(capitalized, String::from("Rust is great"));
        }

        #[test]
        fn against_str() {
            let some_string = "rust is great";
            let capitalized = some_string.capitalize();
            assert_eq!(capitalized, "Rust is great");
        }

        #[test]
        fn failed() {
            assert_eq!(true, true);
        }
    }
}