Catch errors when writing an index that contains invalid objects.
[git/git.git] / t / t0000-basic.sh
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1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano
4#
5
6test_description='Test the very basics part #1.
7
8The rest of the test suite does not check the basic operation of git
9plumbing commands to work very carefully. Their job is to concentrate
10on tricky features that caused bugs in the past to detect regression.
11
12This test runs very basic features, like registering things in cache,
13writing tree, etc.
14
15Note that this test *deliberately* hard-codes many expected object
16IDs. When object ID computation changes, like in the previous case of
17swapping compression and hashing order, the person who is making the
18modification *should* take notice and update the test vectors here.
19'
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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
29if test $? != 1
30then
31 echo >&2 'You do not seem to have built git yet.'
32 exit 1
33fi
34
35merge >/dev/null 2>/dev/null
ef1af9d9 36if test $? = 127
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37then
38 echo >&2 'You do not seem to have "merge" installed.
39Please check INSTALL document.'
40 exit 1
41fi
42
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43. ./test-lib.sh
44
abb7c7b3 45test "$no_python" || "$PYTHON" -c 'import subprocess' || {
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46 echo >&2 'Your python seem to lack "subprocess" module.
47Please check INSTALL document.'
48 exit 1
49}
50
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51################################################################
52# init-db has been done in an empty repository.
53# make sure it is empty.
54
55find .git/objects -type f -print >should-be-empty
56test_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
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60# also it should have 2 subdirectories; no fan-out anymore, pack, and info.
61# 3 is counting "objects" itself
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62find .git/objects -type d -print >full-of-directories
63test_expect_success \
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64 '.git/objects should have 3 subdirectories.' \
65 'test $(wc -l < full-of-directories) = 3'
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66
67################################################################
68# Basics of the basics
69
70# updating a new file without --add should fail.
71test_expect_failure \
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72 'git-update-index without --add should fail adding.' \
73 'git-update-index should-be-empty'
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74
75# and with --add it should succeed, even if it is empty (it used to fail).
76test_expect_success \
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77 'git-update-index with --add should succeed.' \
78 'git-update-index --add should-be-empty'
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79
80test_expect_success \
81 'writing tree out with git-write-tree' \
82 'tree=$(git-write-tree)'
83
84# we know the shape and contents of the tree and know the object ID for it.
85test_expect_success \
86 'validate object ID of a known tree.' \
87 'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
88
89# Removing paths.
90rm -f should-be-empty full-of-directories
91test_expect_failure \
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92 'git-update-index without --remove should fail removing.' \
93 'git-update-index should-be-empty'
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94
95test_expect_success \
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96 'git-update-index with --remove should be able to remove.' \
97 'git-update-index --remove should-be-empty'
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98
99# Empty tree can be written with recent write-tree.
100test_expect_success \
101 'git-write-tree should be able to write an empty tree.' \
102 'tree=$(git-write-tree)'
103
104test_expect_success \
105 'validate object ID of a known tree.' \
106 'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
107
108# Various types of objects
109mkdir path2 path3 path3/subp3
110for p in path0 path2/file2 path3/file3 path3/subp3/file3
111do
112 echo "hello $p" >$p
113 ln -s "hello $p" ${p}sym
114done
115test_expect_success \
215a7ad1 116 'adding various types of objects with git-update-index --add.' \
edde7a8b 117 'find path* ! -type d -print | xargs git-update-index --add'
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118
119# Show them and see that matches what we expect.
120test_expect_success \
121 'showing stage with git-ls-files --stage' \
122 'git-ls-files --stage >current'
123
124cat >expected <<\EOF
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125100644 f87290f8eb2cbbea7857214459a0739927eab154 0 path0
126120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0 path0sym
127100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0 path2/file2
128120000 d8ce161addc5173867a3c3c730924388daedbc38 0 path2/file2sym
129100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0 path3/file3
130120000 8599103969b43aff7e430efea79ca4636466794f 0 path3/file3sym
131100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0 path3/subp3/file3
132120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0 path3/subp3/file3sym
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133EOF
134test_expect_success \
135 'validate git-ls-files output for a known tree.' \
136 'diff current expected'
137
138test_expect_success \
139 'writing tree out with git-write-tree.' \
140 'tree=$(git-write-tree)'
141test_expect_success \
142 'validate object ID for a known tree.' \
143 'test "$tree" = 087704a96baf1c2d1c869a8b084481e121c88b5b'
144
145test_expect_success \
146 'showing tree with git-ls-tree' \
147 'git-ls-tree $tree >current'
148cat >expected <<\EOF
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149100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
150120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
151040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
152040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
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153EOF
154test_expect_success \
155 'git-ls-tree output for a known tree.' \
156 'diff current expected'
157
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158# This changed in ls-tree pathspec change -- recursive does
159# not show tree nodes anymore.
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160test_expect_success \
161 'showing tree with git-ls-tree -r' \
162 'git-ls-tree -r $tree >current'
163cat >expected <<\EOF
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164100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
165120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
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166100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
167120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
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168100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
169120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
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170100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
171120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
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172EOF
173test_expect_success \
174 'git-ls-tree -r output for a known tree.' \
175 'diff current expected'
176
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177# But with -r -t we can have both.
178test_expect_success \
179 'showing tree with git-ls-tree -r -t' \
180 'git-ls-tree -r -t $tree >current'
181cat >expected <<\EOF
182100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
183120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
184040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
185100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
186120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
187040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
188100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
189120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
190040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2 path3/subp3
191100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
192120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
193EOF
194test_expect_success \
195 'git-ls-tree -r output for a known tree.' \
196 'diff current expected'
197
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198test_expect_success \
199 'writing partial tree out with git-write-tree --prefix.' \
200 'ptree=$(git-write-tree --prefix=path3)'
201test_expect_success \
202 'validate object ID for a known tree.' \
203 'test "$ptree" = 21ae8269cacbe57ae09138dcc3a2887f904d02b3'
204
205test_expect_success \
206 'writing partial tree out with git-write-tree --prefix.' \
207 'ptree=$(git-write-tree --prefix=path3/subp3)'
208test_expect_success \
209 'validate object ID for a known tree.' \
210 'test "$ptree" = 3c5e5399f3a333eddecce7a9b9465b63f65f51e2'
211
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212cat >badobjects <<EOF
213100644 blob 1000000000000000000000000000000000000000 dir/file1
214100644 blob 2000000000000000000000000000000000000000 dir/file2
215100644 blob 3000000000000000000000000000000000000000 dir/file3
216100644 blob 4000000000000000000000000000000000000000 dir/file4
217100644 blob 5000000000000000000000000000000000000000 dir/file5
218EOF
219
220rm .git/index
221test_expect_success \
222 'put invalid objects into the index.' \
223 'git-update-index --index-info < badobjects'
224
225test_expect_failure \
226 'writing this tree without --missing-ok.' \
227 'git-write-tree'
228
229test_expect_success \
230 'writing this tree with --missing-ok.' \
231 'git-write-tree --missing-ok'
232
233
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234################################################################
235rm .git/index
236test_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
243cat >expected <<\EOF
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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
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252EOF
253test_expect_success \
254 'validate git-diff-files output for a know cache/work tree state.' \
57fe64a4 255 'git-diff-files >current && diff >/dev/null -b current expected'
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256
257test_expect_success \
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258 'git-update-index --refresh should succeed.' \
259 'git-update-index --refresh'
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260
261test_expect_success \
215a7ad1 262 'no diff after checkout and git-update-index --refresh.' \
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263 'git-diff-files >current && cmp -s current /dev/null'
264
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265################################################################
266P=087704a96baf1c2d1c869a8b084481e121c88b5b
267test_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$P"'
273
274test_expect_success \
275 'git-commit-tree records the correct parent in a commit.' \
276 'commit1=$(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$parent"'
280
281test_expect_success \
282 'git-commit-tree omits duplicated parent in a commit.' \
283 'commit2=$(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
e1970ce4 293test_done