test/test_parse_cmdline


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

#!/lib/initcpio/busybox ash

. ./init_functions

failed=0
tests=0

e_ok=0
e_parser_failure=2
e_assertion_failure=130

assert() {
  local expect_fail= key= expected_value= actual_value

  if [ "$1" = '--expect-fail' ]; then
    expect_fail=y
    shift
  fi

  key=$1 expected_value=$2
  eval actual_value=\$"$1"

  case $actual_value in
    $expected_value)
      if [ -n "$expect_fail" ]; then
        echo "EXPECTED FAIL: $key: expected='$expected_value', got='$actual_value'"
        return 1
      fi
      ;;
    *)
      if [ -z "$expect_fail" ]; then
        echo "FAIL: $key: expected='$expected_value', got='$actual_value'"
        return 1
      fi
      ;;
  esac

  return 0
}

test_parse() {
  local flag= cmdline= expect_fail= expect_parse_fail=

  tests=$(( tests + 1 ))

  for flag; do
    case $flag in
      --expect-fail)
        expect_fail='--expect-fail'
        shift
        ;;
      --expect-parse-fail)
        expect_parse_fail=y
        shift
        ;;
      *)
        break
        ;;
    esac
  done

  cmdline=$1; shift
  [ -n "$V" ] && echo "testing cmdline: $cmdline"

  echo "$cmdline" | {
    parse_cmdline

    result=0
    while [ "$#" -gt 0 ]; do
      key=$1 expected_value=$2
      shift 2

      assert $expect_fail "$key" "$expected_value" || result=$e_assertion_failure
    done

    exit "$result"
  } 2>/dev/null

  case $? in
    $e_parser_failure)
      # parser failure
      if [ -z "$expect_parse_fail" ]; then
        echo "FAIL: parse_cmdline failed"
        failed=$(( failed + 1 ))
      fi
      ;;
    $e_assertion_failure)
      # test assertion failure
      failed=$(( failed + 1 ))
      ;;
    $e_ok)
      if [ -n "$expect_parse_fail" ]; then
        echo "EXPECTED_FAIL: parse_cmdline succeeded"
        failed=$(( failed + 1 ))
      fi
      ;;
  esac
}

# bare words
test_parse 'foo' \
  'foo' 'y'
test_parse 'foo bar' \
  'foo' 'y' \
  'bar' 'y'

# overwriting
test_parse 'foo=bar bar=baz foo bar="no pe"' \
  'bar' 'no pe' \
  'foo' 'y'

# simple key=value assignment
test_parse 'foo=bar' \
  'foo' 'bar'
test_parse 'foo=bar bar=baz' \
  'foo' 'bar' \
  'bar' 'baz'
test_parse '_derpy=hooves' \
  '_derpy' 'hooves'
test_parse 'f5=abc f_5_=abc' \
  'f5' 'abc' \
  'f_5_' 'abc'
test_parse 'v="foo bar=baz"' \
  'v' 'foo bar=baz'

# double quoting
test_parse 'foo="bar"' \
  'foo' 'bar'
test_parse 'foo="bar baz"' \
  'foo' 'bar baz'

# single quoting
test_parse --expect-fail "foo='bar'" \
  'foo' 'bar'
test_parse --expect-parse-fail "foo='bar baz'" \
  'foo' 'bar baz'

# dangling quotes
test_parse --expect-fail 'foo="bar' \
  'foo' '"bar'
test_parse 'foo=bar"' \
  'foo' 'bar"'

# nested quotes
test_parse --expect-parse-fail "foo='\"bar baz\"' herp='\"de\"rp'" \
  'foo' '"bar baz"' \
  'herp' '"de"rp'

# escaped quotes
test_parse 'foo=bar"baz' \
  'foo' 'bar"baz'

# neighboring quoted regions
test_parse --expect-fail 'foo="bar""baz"' \
  'foo' 'barbaz'
test_parse --expect-fail "foo=\"bar\"'baz'" \
  'foo' "barbaz"
test_parse --expect-fail "foo='bar'\"baz\"" \
  'foo' "barbaz"

# comments
test_parse 'foo=bar # ignored content' \
  'foo' 'bar' \
  'ignored' '' \
  'content' ''
test_parse 'foo=bar #ignored content' \
  'foo' 'bar' \
  'ignored' '' \
  'content' ''
test_parse 'foo="bar #baz" parse=this' \
  'foo' 'bar #baz' \
  'parse' 'this'

# shell metachars
test_parse 'foo=*' \
  'foo' '\*'
test_parse --expect-fail 'Make*' \
  'Makefile' ''
test_parse --expect-fail '[Makefile]*' \
  'Makefile' '' \
  'init' '' \
  'functions' ''

# invalid names
test_parse 'in-valid=name'
test_parse '6foo=bar'
test_parse --expect-parse-fail '"gar bage"' \
  'gar' '' \
  'bage' ''

# special handling
test_parse 'rw' \
  'ro' '' \
  'rw' '' \
  'rwopt' 'rw'
test_parse 'ro' \
  'ro' '' \
  'rw' '' \
  'rwopt' 'ro'
test_parse --expect-fail 'fstype=btrfs' \
  'rootfstype' 'btrfs'
test_parse 'fsck.mode=force' \
  'forcefsck' 'y' \
  'fastboot' ''
test_parse 'fsck.mode=skip' \
  'forcefsck' '' \
  'fastboot' 'y'
test_parse 'rd.debug' \
  'rd_debug' 'y'
test_parse 'rd.log' \
  'rd_logmask' '6'
test_parse 'rd.log=all' \
  'rd_logmask' '7'
test_parse 'rd.log=console' \
  'rd_logmask' '4'
test_parse 'rd.log=kmsg' \
  'rd_logmask' '2'
test_parse 'rd.log=file' \
  'rd_logmask' '1'

# a mix of stuff
test_parse 'foo=bar bareword bar="ba az"' \
  'foo' 'bar' \
  'bareword' 'y' \
  'bar' 'ba az'

if [ "$failed" -eq 0 ]; then
  echo "PASS: ${0##*/test_} ($tests tests)"
  exit 0
else
  echo "FAIL: $failed tests failed"
  exit 1
fi