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Update test-lib.sh from current git.
[stgit] / t / test-lib.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 # Copyright (c) 2006 Yann Dirson - tuning for stgit
5 #
6
7 # For repeatability, reset the environment to known value.
8 LANG=C
9 LC_ALL=C
10 PAGER=cat
11 TZ=UTC
12 export LANG LC_ALL PAGER TZ
13 EDITOR=:
14 VISUAL=:
15 unset AUTHOR_DATE
16 unset AUTHOR_EMAIL
17 unset AUTHOR_NAME
18 unset COMMIT_AUTHOR_EMAIL
19 unset COMMIT_AUTHOR_NAME
20 unset EMAIL
21 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
22 unset GIT_AUTHOR_DATE
23 #GIT_AUTHOR_EMAIL=author@example.com
24 #GIT_AUTHOR_NAME='A U Thor'
25 unset GIT_COMMITTER_DATE
26 #GIT_COMMITTER_EMAIL=committer@example.com
27 #GIT_COMMITTER_NAME='C O Mitter'
28 unset GIT_DIFF_OPTS
29 unset GIT_DIR
30 unset GIT_EXTERNAL_DIFF
31 unset GIT_INDEX_FILE
32 unset GIT_OBJECT_DIRECTORY
33 unset SHA1_FILE_DIRECTORIES
34 unset SHA1_FILE_DIRECTORY
35 GIT_MERGE_VERBOSITY=5
36 export GIT_MERGE_VERBOSITY
37 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
38 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
39 export EDITOR VISUAL
40
41 # Protect ourselves from common misconfiguration to export
42 # CDPATH into the environment
43 unset CDPATH
44
45 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
46         1|2|true)
47                 echo "* warning: Some tests will not work if GIT_TRACE" \
48                         "is set as to trace on STDERR ! *"
49                 echo "* warning: Please set GIT_TRACE to something" \
50                         "other than 1, 2 or true ! *"
51                 ;;
52 esac
53
54 # Each test should start with something like this, after copyright notices:
55 #
56 # test_description='Description of this test...
57 # This test checks if command xyzzy does the right thing...
58 # '
59 # . ./test-lib.sh
60
61 error () {
62         echo "* error: $*"
63         trap - exit
64         exit 1
65 }
66
67 say () {
68         echo "* $*"
69 }
70
71 test "${test_description}" != "" ||
72 error "Test script did not set test_description."
73
74 while test "$#" -ne 0
75 do
76         case "$1" in
77         -d|--d|--de|--deb|--debu|--debug)
78                 debug=t; shift ;;
79         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
80                 immediate=t; shift ;;
81         -h|--h|--he|--hel|--help)
82                 echo "$test_description"
83                 exit 0 ;;
84         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
85                 export STGIT_DEBUG_LEVEL="-1"
86                 verbose=t; shift ;;
87         *)
88                 break ;;
89         esac
90 done
91
92 exec 5>&1
93 if test "$verbose" = "t"
94 then
95         exec 4>&2 3>&1
96 else
97         exec 4>/dev/null 3>/dev/null
98 fi
99
100 test_failure=0
101 test_count=0
102
103 trap 'echo >&5 "FATAL: Unexpected exit with code $?"; exit 1' exit
104
105 test_tick () {
106         if test -z "${test_tick+set}"
107         then
108                 test_tick=1112911993
109         else
110                 test_tick=$(($test_tick + 60))
111         fi
112         GIT_COMMITTER_DATE="$test_tick -0700"
113         GIT_AUTHOR_DATE="$test_tick -0700"
114         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
115 }
116
117 # You are not expected to call test_ok_ and test_failure_ directly, use
118 # the text_expect_* functions instead.
119
120 test_ok_ () {
121         test_count=$(expr "$test_count" + 1)
122         say "  ok $test_count: $@"
123 }
124
125 test_failure_ () {
126         test_count=$(expr "$test_count" + 1)
127         test_failure=$(expr "$test_failure" + 1);
128         say "FAIL $test_count: $1"
129         shift
130         echo "$@" | sed -e 's/^/        /'
131         test "$immediate" = "" || { trap - exit; exit 1; }
132 }
133
134
135 test_debug () {
136         test "$debug" = "" || eval "$1"
137 }
138
139 test_run_ () {
140         eval >&3 2>&4 "$1"
141         eval_ret="$?"
142         return 0
143 }
144
145 test_skip () {
146         this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
147         this_test="$this_test.$(expr "$test_count" + 1)"
148         to_skip=
149         for skp in $GIT_SKIP_TESTS
150         do
151                 case "$this_test" in
152                 $skp)
153                         to_skip=t
154                 esac
155         done
156         case "$to_skip" in
157         t)
158                 say >&3 "skipping test: $@"
159                 test_count=$(expr "$test_count" + 1)
160                 say "skip $test_count: $1"
161                 : true
162                 ;;
163         *)
164                 false
165                 ;;
166         esac
167 }
168
169 test_expect_failure () {
170         test "$#" = 2 ||
171         error "bug in the test script: not 2 parameters to test-expect-failure"
172         if ! test_skip "$@"
173         then
174                 say >&3 "expecting failure: $2"
175                 test_run_ "$2"
176                 if [ "$?" = 0 -a "$eval_ret" != 0 -a "$eval_ret" -lt 129 ]
177                 then
178                         test_ok_ "$1"
179                 else
180                         test_failure_ "$@"
181                 fi
182         fi
183         echo >&3 ""
184 }
185
186 test_expect_success () {
187         test "$#" = 2 ||
188         error "bug in the test script: not 2 parameters to test-expect-success"
189         if ! test_skip "$@"
190         then
191                 say >&3 "expecting success: $2"
192                 test_run_ "$2"
193                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
194                 then
195                         test_ok_ "$1"
196                 else
197                         test_failure_ "$@"
198                 fi
199         fi
200         echo >&3 ""
201 }
202
203 test_expect_code () {
204         test "$#" = 3 ||
205         error "bug in the test script: not 3 parameters to test-expect-code"
206         if ! test_skip "$@"
207         then
208                 say >&3 "expecting exit code $1: $3"
209                 test_run_ "$3"
210                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
211                 then
212                         test_ok_ "$2"
213                 else
214                         test_failure_ "$@"
215                 fi
216         fi
217         echo >&3 ""
218 }
219
220 # Most tests can use the created repository, but some amy need to create more.
221 # Usage: test_create_repo <directory>
222 test_create_repo () {
223         test "$#" = 1 ||
224         error "bug in the test script: not 1 parameter to test-create-repo"
225         owd=`pwd`
226         repo="$1"
227         mkdir "$repo"
228         cd "$repo" || error "Cannot setup test environment"
229         git-init >/dev/null 2>&1 ||
230         error "cannot run git-init -- have you installed git-core?"
231         mv .git/hooks .git/hooks-disabled
232         echo "empty start" |
233         git-commit-tree `git-write-tree` >.git/refs/heads/master 2>&4 ||
234         error "cannot run git-commit -- is your git-core functioning?"
235         cd "$owd"
236 }
237
238 test_done () {
239         trap - exit
240         case "$test_failure" in
241         0)
242                 # We could:
243                 # cd .. && rm -fr trash
244                 # but that means we forbid any tests that use their own
245                 # subdirectory from calling test_done without coming back
246                 # to where they started from.
247                 # The Makefile provided will clean this test area so
248                 # we will leave things as they are.
249
250                 say "passed all $test_count test(s)"
251                 exit 0 ;;
252
253         *)
254                 say "failed $test_failure among $test_count test(s)"
255                 exit 1 ;;
256
257         esac
258 }
259
260 # Test the binaries we have just built.  The tests are kept in
261 # t/ subdirectory and are run in trash subdirectory.
262 PATH=$(pwd)/..:$PATH
263 HOME=$(pwd)/trash
264 GIT_CONFIG=.git/config
265 export PATH HOME GIT_CONFIG
266
267
268 # Test repository
269 test=trash
270 rm -fr "$test"
271 test_create_repo $test
272 cd "$test"
273
274 this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
275 for skp in $GIT_SKIP_TESTS
276 do
277         to_skip=
278         for skp in $GIT_SKIP_TESTS
279         do
280                 case "$this_test" in
281                 $skp)
282                         to_skip=t
283                 esac
284         done
285         case "$to_skip" in
286         t)
287                 say >&3 "skipping test $this_test altogether"
288                 say "skip all tests in $this_test"
289                 test_done
290         esac
291 done