diff --check: do not get confused by new blank lines in the middle
[git/git.git] / t / t4015-diff-whitespace.sh
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1#!/bin/sh
2#
3# Copyright (c) 2006 Johannes E. Schindelin
4#
5
6test_description='Test special whitespace in diff engine.
7
8'
9. ./test-lib.sh
10. ../diff-lib.sh
11
12# Ray Lehtiniemi's example
13
14cat << EOF > x
15do {
16 nothing;
17} while (0);
18EOF
19
5be60078 20git update-index --add x
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21
22cat << EOF > x
23do
24{
25 nothing;
26}
27while (0);
28EOF
29
30cat << EOF > expect
31diff --git a/x b/x
32index adf3937..6edc172 100644
33--- a/x
34+++ b/x
35@@ -1,3 +1,5 @@
36-do {
37+do
38+{
39 nothing;
40-} while (0);
41+}
42+while (0);
43EOF
44
5be60078 45git diff > out
3af82863 46test_expect_success "Ray's example without options" 'test_cmp expect out'
2344d47f 47
5be60078 48git diff -w > out
3af82863 49test_expect_success "Ray's example with -w" 'test_cmp expect out'
2344d47f 50
5be60078 51git diff -b > out
3af82863 52test_expect_success "Ray's example with -b" 'test_cmp expect out'
2344d47f 53
4035b46e 54tr 'Q' '\015' << EOF > x
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55whitespace at beginning
56whitespace change
57whitespace in the middle
58whitespace at end
59unchanged line
4035b46e 60CR at endQ
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61EOF
62
5be60078 63git update-index x
2344d47f 64
74f16b0c 65tr '_' ' ' << EOF > x
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66 whitespace at beginning
67whitespace change
68white space in the middle
74f16b0c 69whitespace at end__
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70unchanged line
71CR at end
72EOF
73
74f16b0c 74tr 'Q_' '\015 ' << EOF > expect
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75diff --git a/x b/x
76index d99af23..8b32fb5 100644
77--- a/x
78+++ b/x
79@@ -1,6 +1,6 @@
80-whitespace at beginning
81-whitespace change
82-whitespace in the middle
83-whitespace at end
84+ whitespace at beginning
85+whitespace change
86+white space in the middle
74f16b0c 87+whitespace at end__
2344d47f 88 unchanged line
4035b46e 89-CR at endQ
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90+CR at end
91EOF
5be60078 92git diff > out
3af82863 93test_expect_success 'another test, without options' 'test_cmp expect out'
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94
95cat << EOF > expect
96diff --git a/x b/x
97index d99af23..8b32fb5 100644
98EOF
5be60078 99git diff -w > out
3af82863 100test_expect_success 'another test, with -w' 'test_cmp expect out'
2344d47f 101
4035b46e 102tr 'Q' '\015' << EOF > expect
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103diff --git a/x b/x
104index d99af23..8b32fb5 100644
105--- a/x
106+++ b/x
107@@ -1,6 +1,6 @@
108-whitespace at beginning
109+ whitespace at beginning
110 whitespace change
111-whitespace in the middle
2344d47f 112+white space in the middle
c7c24889 113 whitespace at end
2344d47f 114 unchanged line
c7c24889 115 CR at endQ
2344d47f 116EOF
5be60078 117git diff -b > out
3af82863 118test_expect_success 'another test, with -b' 'test_cmp expect out'
2344d47f 119
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120test_expect_success 'check mixed spaces and tabs in indent' '
121
122 # This is indented with SP HT SP.
123 echo " foo();" > x &&
420f4f04 124 git diff --check | grep "space before tab in indent"
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125
126'
127
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128test_expect_success 'check mixed tabs and spaces in indent' '
129
130 # This is indented with HT SP HT.
131 echo " foo();" > x &&
132 git diff --check | grep "space before tab in indent"
133
134'
135
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136test_expect_success 'check with no whitespace errors' '
137
138 git commit -m "snapshot" &&
139 echo "foo();" > x &&
140 git diff --check
141
142'
143
f8175466 144test_expect_success 'check with trailing whitespace' '
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145
146 echo "foo(); " > x &&
d492b31c 147 test_must_fail git diff --check
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148
149'
150
f8175466 151test_expect_success 'check with space before tab in indent' '
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152
153 # indent has space followed by hard tab
154 echo " foo();" > x &&
d492b31c 155 test_must_fail git diff --check
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156
157'
158
da31b358 159test_expect_success '--check and --exit-code are not exclusive' '
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160
161 git checkout x &&
162 git diff --check --exit-code
163
164'
165
da31b358 166test_expect_success '--check and --quiet are not exclusive' '
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167
168 git diff --check --quiet
169
170'
171
172test_expect_success 'check staged with no whitespace errors' '
173
174 echo "foo();" > x &&
175 git add x &&
176 git diff --cached --check
177
178'
179
f8175466 180test_expect_success 'check staged with trailing whitespace' '
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181
182 echo "foo(); " > x &&
183 git add x &&
d492b31c 184 test_must_fail git diff --cached --check
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185
186'
187
f8175466 188test_expect_success 'check staged with space before tab in indent' '
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189
190 # indent has space followed by hard tab
191 echo " foo();" > x &&
192 git add x &&
d492b31c 193 test_must_fail git diff --cached --check
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194
195'
196
197test_expect_success 'check with no whitespace errors (diff-index)' '
198
199 echo "foo();" > x &&
200 git add x &&
201 git diff-index --check HEAD
202
203'
204
f8175466 205test_expect_success 'check with trailing whitespace (diff-index)' '
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206
207 echo "foo(); " > x &&
208 git add x &&
d492b31c 209 test_must_fail git diff-index --check HEAD
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210
211'
212
f8175466 213test_expect_success 'check with space before tab in indent (diff-index)' '
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214
215 # indent has space followed by hard tab
216 echo " foo();" > x &&
217 git add x &&
d492b31c 218 test_must_fail git diff-index --check HEAD
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219
220'
221
222test_expect_success 'check staged with no whitespace errors (diff-index)' '
223
224 echo "foo();" > x &&
225 git add x &&
226 git diff-index --cached --check HEAD
227
228'
229
f8175466 230test_expect_success 'check staged with trailing whitespace (diff-index)' '
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231
232 echo "foo(); " > x &&
233 git add x &&
d492b31c 234 test_must_fail git diff-index --cached --check HEAD
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235
236'
237
f8175466 238test_expect_success 'check staged with space before tab in indent (diff-index)' '
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239
240 # indent has space followed by hard tab
241 echo " foo();" > x &&
242 git add x &&
d492b31c 243 test_must_fail git diff-index --cached --check HEAD
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244
245'
246
247test_expect_success 'check with no whitespace errors (diff-tree)' '
248
249 echo "foo();" > x &&
250 git commit -m "new commit" x &&
251 git diff-tree --check HEAD^ HEAD
252
253'
254
f8175466 255test_expect_success 'check with trailing whitespace (diff-tree)' '
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256
257 echo "foo(); " > x &&
258 git commit -m "another commit" x &&
d492b31c 259 test_must_fail git diff-tree --check HEAD^ HEAD
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260
261'
262
f8175466 263test_expect_success 'check with space before tab in indent (diff-tree)' '
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264
265 # indent has space followed by hard tab
266 echo " foo();" > x &&
267 git commit -m "yet another" x &&
d492b31c 268 test_must_fail git diff-tree --check HEAD^ HEAD
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269
270'
271
272test_expect_success 'check trailing whitespace (trailing-space: off)' '
273
274 git config core.whitespace "-trailing-space" &&
275 echo "foo (); " > x &&
276 git diff --check
277
278'
279
280test_expect_success 'check trailing whitespace (trailing-space: on)' '
281
282 git config core.whitespace "trailing-space" &&
283 echo "foo (); " > x &&
d492b31c 284 test_must_fail git diff --check
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285
286'
287
288test_expect_success 'check space before tab in indent (space-before-tab: off)' '
289
290 # indent contains space followed by HT
291 git config core.whitespace "-space-before-tab" &&
292 echo " foo ();" > x &&
293 git diff --check
294
295'
296
297test_expect_success 'check space before tab in indent (space-before-tab: on)' '
298
299 # indent contains space followed by HT
300 git config core.whitespace "space-before-tab" &&
301 echo " foo (); " > x &&
d492b31c 302 test_must_fail git diff --check
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303
304'
305
306test_expect_success 'check spaces as indentation (indent-with-non-tab: off)' '
307
308 git config core.whitespace "-indent-with-non-tab"
4d9697c7 309 echo " foo ();" > x &&
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310 git diff --check
311
312'
313
314test_expect_success 'check spaces as indentation (indent-with-non-tab: on)' '
315
316 git config core.whitespace "indent-with-non-tab" &&
4d9697c7 317 echo " foo ();" > x &&
d492b31c 318 test_must_fail git diff --check
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319
320'
321
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322test_expect_success 'check tabs and spaces as indentation (indent-with-non-tab: on)' '
323
324 git config core.whitespace "indent-with-non-tab" &&
325 echo " foo ();" > x &&
d492b31c 326 test_must_fail git diff --check
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327
328'
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329
330test_expect_success 'line numbers in --check output are correct' '
331
332 echo "" > x &&
333 echo "foo(); " >> x &&
334 git diff --check | grep "x:2:"
335
336'
337
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338test_expect_success 'checkdiff detects trailing blank lines' '
339 echo "foo();" >x &&
340 echo "" >>x &&
341 git diff --check | grep "ends with blank"
342'
343
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344test_expect_success 'checkdiff allows new blank lines' '
345 git checkout x &&
346 mv x y &&
347 (
348 echo "/* This is new */" &&
349 echo "" &&
350 cat y
351 ) >x &&
352 git diff --check
353'
354
2344d47f 355test_done