blob: b13f5b82f179d21fd0ace360a18f27016ad24660 (
plain) (
blame)
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
|
#| Copyright 2024 Peter McGoron
|
| Licensed under the Apache License, Version 2.0 (the "License");
| you may not use this file except in compliance with the License.
| You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed under the License is distributed on an "AS IS" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations under the License.
|#
(cond-expand
(chicken (import r7rs))
(else))
(load "mcgoron.iterator.exceptions.sld")
(load "mcgoron.iterator.base.sld")
(load "mcgoron.iterator.string.sld")
(import (srfi 64) (mcgoron iterator string)
(mcgoron iterator base))
(let* ((str "")
(itr (string-iterator-start str)))
(test-begin "empty string")
(test-assert "iterator-at-start?" (iterator-at-start? itr))
(test-assert "iterator-at-end?" (iterator-at-end? itr))
(test-assert "iterator-advance 1" (not (iterator-advance itr 1)))
(test-assert "iterator-advance -1" (not (iterator-advance itr -1)))
(test-eqv "iterator->index" 0 (iterator->index itr))
(test-assert "iterator=?" (iterator=? itr (string-iterator-end str)))
(test-error "iterator-ref" #t (iterator-ref itr))
(test-end "empty string"))
(let* ((str "a")
(itr (string-iterator-start str))
(itr-from-itr (string-iterator-start itr)))
(test-begin "single character string")
(test-assert "iterator-at-start?" (iterator-at-start? itr))
(test-assert "iterator-at-end?" (not (iterator-at-end? itr)))
(test-assert (iterator=? itr itr-from-itr))
(test-eqv "iterator-ref 0" #\a (iterator-ref itr))
(test-assert "iterator-advance start -1" (not (iterator-advance itr -1)))
(let ((next-itr (iterator-advance itr 1)))
(test-assert "iterator? advanced" (iterator? next-itr))
(test-assert "iterator-at-end? advanced" (iterator-at-end? next-itr))
(test-assert "iterator=? end advanced"
(iterator=? next-itr (string-iterator-end str)))
(test-assert "iterator=? itr next-itr"
(not (iterator=? itr next-itr)))
(test-assert "iterator<? itr next-itr"
(iterator<? itr next-itr))
(test-assert "iterator=? itr previous"
(iterator=? itr (iterator-advance next-itr -1)))
(test-eqv "iterator->index next-itr" 1
(iterator->index next-itr))
(test-error "iterator-ref next-itr"
#t (iterator-ref next-itr)))
(test-end "single character string"))
|
