Catch errors when writing an index that contains invalid objects.
[git/git.git] / t / t0000-basic.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
5
6 test_description='Test the very basics part #1.
7
8 The rest of the test suite does not check the basic operation of git
9 plumbing commands to work very carefully. Their job is to concentrate
10 on tricky features that caused bugs in the past to detect regression.
11
12 This test runs very basic features, like registering things in cache,
13 writing tree, etc.
14
15 Note that this test *deliberately* hard-codes many expected object
16 IDs. When object ID computation changes, like in the previous case of
17 swapping compression and hashing order, the person who is making the
18 modification *should* take notice and update the test vectors here.
19 '
20
21 ################################################################
22 # It appears that people are getting bitten by not installing
23 # 'merge' (usually part of RCS package in binary distributions)
24 # or have too old python without subprocess. Check them and error
25 # out before running any tests. Also catch the bogosity of trying
26 # to run tests without building while we are at it.
27
28 ../git >/dev/null
29 if test $? != 1
30 then
31 echo >&2 'You do not seem to have built git yet.'
32 exit 1
33 fi
34
35 merge >/dev/null 2>/dev/null
36 if test $? = 127
37 then
38 echo >&2 'You do not seem to have "merge" installed.
39 Please check INSTALL document.'
40 exit 1
41 fi
42
43 . ./test-lib.sh
44
45 test "$no_python" || "$PYTHON" -c 'import subprocess' || {
46 echo >&2 'Your python seem to lack "subprocess" module.
47 Please check INSTALL document.'
48 exit 1
49 }
50
51 ################################################################
52 # init-db has been done in an empty repository.
53 # make sure it is empty.
54
55 find .git/objects -type f -print >should-be-empty
56 test_expect_success \
57 '.git/objects should be empty after git-init-db in an empty repo.' \
58 'cmp -s /dev/null should-be-empty'
59
60 # also it should have 2 subdirectories; no fan-out anymore, pack, and info.
61 # 3 is counting "objects" itself
62 find .git/objects -type d -print >full-of-directories
63 test_expect_success \
64 '.git/objects should have 3 subdirectories.' \
65 'test $(wc -l < full-of-directories) = 3'
66
67 ################################################################
68 # Basics of the basics
69
70 # updating a new file without --add should fail.
71 test_expect_failure \
72 'git-update-index without --add should fail adding.' \
73 'git-update-index should-be-empty'
74
75 # and with --add it should succeed, even if it is empty (it used to fail).
76 test_expect_success \
77 'git-update-index with --add should succeed.' \
78 'git-update-index --add should-be-empty'
79
80 test_expect_success \
81 'writing tree out with git-write-tree' \
82 'tree=$(git-write-tree)'
83
84 # we know the shape and contents of the tree and know the object ID for it.
85 test_expect_success \
86 'validate object ID of a known tree.' \
87 'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
88
89 # Removing paths.
90 rm -f should-be-empty full-of-directories
91 test_expect_failure \
92 'git-update-index without --remove should fail removing.' \
93 'git-update-index should-be-empty'
94
95 test_expect_success \
96 'git-update-index with --remove should be able to remove.' \
97 'git-update-index --remove should-be-empty'
98
99 # Empty tree can be written with recent write-tree.
100 test_expect_success \
101 'git-write-tree should be able to write an empty tree.' \
102 'tree=$(git-write-tree)'
103
104 test_expect_success \
105 'validate object ID of a known tree.' \
106 'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
107
108 # Various types of objects
109 mkdir path2 path3 path3/subp3
110 for p in path0 path2/file2 path3/file3 path3/subp3/file3
111 do
112 echo "hello $p" >$p
113 ln -s "hello $p" ${p}sym
114 done
115 test_expect_success \
116 'adding various types of objects with git-update-index --add.' \
117 'find path* ! -type d -print | xargs git-update-index --add'
118
119 # Show them and see that matches what we expect.
120 test_expect_success \
121 'showing stage with git-ls-files --stage' \
122 'git-ls-files --stage >current'
123
124 cat >expected <<\EOF
125 100644 f87290f8eb2cbbea7857214459a0739927eab154 0 path0
126 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0 path0sym
127 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0 path2/file2
128 120000 d8ce161addc5173867a3c3c730924388daedbc38 0 path2/file2sym
129 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0 path3/file3
130 120000 8599103969b43aff7e430efea79ca4636466794f 0 path3/file3sym
131 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0 path3/subp3/file3
132 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0 path3/subp3/file3sym
133 EOF
134 test_expect_success \
135 'validate git-ls-files output for a known tree.' \
136 'diff current expected'
137
138 test_expect_success \
139 'writing tree out with git-write-tree.' \
140 'tree=$(git-write-tree)'
141 test_expect_success \
142 'validate object ID for a known tree.' \
143 'test "$tree" = 087704a96baf1c2d1c869a8b084481e121c88b5b'
144
145 test_expect_success \
146 'showing tree with git-ls-tree' \
147 'git-ls-tree $tree >current'
148 cat >expected <<\EOF
149 100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
150 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
151 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
152 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
153 EOF
154 test_expect_success \
155 'git-ls-tree output for a known tree.' \
156 'diff current expected'
157
158 # This changed in ls-tree pathspec change -- recursive does
159 # not show tree nodes anymore.
160 test_expect_success \
161 'showing tree with git-ls-tree -r' \
162 'git-ls-tree -r $tree >current'
163 cat >expected <<\EOF
164 100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
165 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
166 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
167 120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
168 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
169 120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
170 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
171 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
172 EOF
173 test_expect_success \
174 'git-ls-tree -r output for a known tree.' \
175 'diff current expected'
176
177 # But with -r -t we can have both.
178 test_expect_success \
179 'showing tree with git-ls-tree -r -t' \
180 'git-ls-tree -r -t $tree >current'
181 cat >expected <<\EOF
182 100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
183 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
184 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
185 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
186 120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
187 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
188 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
189 120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
190 040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2 path3/subp3
191 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
192 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
193 EOF
194 test_expect_success \
195 'git-ls-tree -r output for a known tree.' \
196 'diff current expected'
197
198 test_expect_success \
199 'writing partial tree out with git-write-tree --prefix.' \
200 'ptree=$(git-write-tree --prefix=path3)'
201 test_expect_success \
202 'validate object ID for a known tree.' \
203 'test "$ptree" = 21ae8269cacbe57ae09138dcc3a2887f904d02b3'
204
205 test_expect_success \
206 'writing partial tree out with git-write-tree --prefix.' \
207 'ptree=$(git-write-tree --prefix=path3/subp3)'
208 test_expect_success \
209 'validate object ID for a known tree.' \
210 'test "$ptree" = 3c5e5399f3a333eddecce7a9b9465b63f65f51e2'
211
212 cat >badobjects <<EOF
213 100644 blob 1000000000000000000000000000000000000000 dir/file1
214 100644 blob 2000000000000000000000000000000000000000 dir/file2
215 100644 blob 3000000000000000000000000000000000000000 dir/file3
216 100644 blob 4000000000000000000000000000000000000000 dir/file4
217 100644 blob 5000000000000000000000000000000000000000 dir/file5
218 EOF
219
220 rm .git/index
221 test_expect_success \
222 'put invalid objects into the index.' \
223 'git-update-index --index-info < badobjects'
224
225 test_expect_failure \
226 'writing this tree without --missing-ok.' \
227 'git-write-tree'
228
229 test_expect_success \
230 'writing this tree with --missing-ok.' \
231 'git-write-tree --missing-ok'
232
233
234 ################################################################
235 rm .git/index
236 test_expect_success \
237 'git-read-tree followed by write-tree should be idempotent.' \
238 'git-read-tree $tree &&
239 test -f .git/index &&
240 newtree=$(git-write-tree) &&
241 test "$newtree" = "$tree"'
242
243 cat >expected <<\EOF
244 :100644 100644 f87290f8eb2cbbea7857214459a0739927eab154 0000000000000000000000000000000000000000 M path0
245 :120000 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0000000000000000000000000000000000000000 M path0sym
246 :100644 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0000000000000000000000000000000000000000 M path2/file2
247 :120000 120000 d8ce161addc5173867a3c3c730924388daedbc38 0000000000000000000000000000000000000000 M path2/file2sym
248 :100644 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0000000000000000000000000000000000000000 M path3/file3
249 :120000 120000 8599103969b43aff7e430efea79ca4636466794f 0000000000000000000000000000000000000000 M path3/file3sym
250 :100644 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0000000000000000000000000000000000000000 M path3/subp3/file3
251 :120000 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0000000000000000000000000000000000000000 M path3/subp3/file3sym
252 EOF
253 test_expect_success \
254 'validate git-diff-files output for a know cache/work tree state.' \
255 'git-diff-files >current && diff >/dev/null -b current expected'
256
257 test_expect_success \
258 'git-update-index --refresh should succeed.' \
259 'git-update-index --refresh'
260
261 test_expect_success \
262 'no diff after checkout and git-update-index --refresh.' \
263 'git-diff-files >current && cmp -s current /dev/null'
264
265 ################################################################
266 P=087704a96baf1c2d1c869a8b084481e121c88b5b
267 test_expect_success \
268 'git-commit-tree records the correct tree in a commit.' \
269 'commit0=$(echo NO | git-commit-tree $P) &&
270 tree=$(git show --pretty=raw $commit0 |
271 sed -n -e "s/^tree //p" -e "/^author /q") &&
272 test "z$tree" = "z$P"'
273
274 test_expect_success \
275 'git-commit-tree records the correct parent in a commit.' \
276 'commit1=$(echo NO | git-commit-tree $P -p $commit0) &&
277 parent=$(git show --pretty=raw $commit1 |
278 sed -n -e "s/^parent //p" -e "/^author /q") &&
279 test "z$commit0" = "z$parent"'
280
281 test_expect_success \
282 'git-commit-tree omits duplicated parent in a commit.' \
283 'commit2=$(echo NO | git-commit-tree $P -p $commit0 -p $commit0) &&
284 parent=$(git show --pretty=raw $commit2 |
285 sed -n -e "s/^parent //p" -e "/^author /q" |
286 sort -u) &&
287 test "z$commit0" = "z$parent" &&
288 numparent=$(git show --pretty=raw $commit2 |
289 sed -n -e "s/^parent //p" -e "/^author /q" |
290 wc -l) &&
291 test $numparent = 1'
292
293 test_done