-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathregex_test.go
172 lines (125 loc) · 2.95 KB
/
regex_test.go
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
package regexgo
import (
"testing"
)
func Test_Regex(t *testing.T) {
reg := NewRegexGo("a*b")
result := reg.CheckIsMatch("aaaab")
if result == false {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("abc")
if result {
t.Error("regex is wrong")
}
reg = NewRegexGo("ab|b")
result = reg.CheckIsMatch("ab")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("b")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("cd")
if result {
t.Error("regex is wrong")
}
reg = NewRegexGo("a?b")
result = reg.CheckIsMatch("b")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("ab")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("cb")
if result {
t.Error("regex is wrong")
}
reg = NewRegexGo("a+b")
result = reg.CheckIsMatch("aaaab")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("ab")
if !result {
t.Error("regex is wrong")
}
result = reg.CheckIsMatch("b")
if result {
t.Error("regex is wrong")
}
}
func Test_RegexNFAbuild(t *testing.T) {
compareStringOne := "abab"
compareStringTwo := "abbb"
regexGo := NewRegexGo(compareStringOne + "|" + compareStringTwo)
iterator := regexGo.startState
if iterator.stateType != split {
t.Error("| first should be split type")
}
secondIterator := iterator.next
firstIterator := iterator.nextTwo
stringiter := 0
for firstIterator.next != nil {
if stringiter > len(compareStringOne) {
t.Error("stringIter overflow")
}
if firstIterator.char != compareStringOne[stringiter] {
t.Error("Character not match")
}
stringiter++
firstIterator = firstIterator.next
}
stringiter = 0
for secondIterator.next != nil {
if stringiter > len(compareStringTwo) {
t.Error("stringIter overflow")
}
if secondIterator.char != compareStringTwo[stringiter] {
t.Error("Character not match")
}
stringiter++
secondIterator = secondIterator.next
}
}
func Test_RegexNFAbuildTwo(t *testing.T) {
compareStringTwo := "cb"
regexGo := NewRegexGo("a?b|" + compareStringTwo)
iterator := regexGo.startState
if iterator.stateType != split {
t.Error("| first should be split type")
}
firstIterator := iterator.next
twoIterator := iterator.nextTwo
stringIterator := 0
for firstIterator.stateType != match {
if stringIterator > len(compareStringTwo) {
t.Error("StringIter overflow")
}
if compareStringTwo[stringIterator] != firstIterator.char {
t.Error("Character not match")
}
stringIterator++
firstIterator = firstIterator.next
}
if twoIterator.stateType != split {
t.Error("? first should be split type")
}
if twoIterator.nextTwo.char != 98 {
t.Error("Character not match")
}
twoIterator = twoIterator.next
if twoIterator.char != 97 {
t.Error("Character not match")
}
if twoIterator.next.char != 98 {
t.Error("Character not match")
}
twoIterator = twoIterator.next.next
if twoIterator.stateType != match {
t.Error("State not match")
}
}