1 #!/bin/sh
2 
3 diff_prog="../diff/diff"
4 
5 diff_type=unidiff
6 
7 verify_diff_script() {
8 	orig_left="$1"
9 	orig_right="$2"
10 	the_diff="$3"
11 	diff_opts="$4"
12 	expected_diff="$5"
13 
14 	verify_left="verify.$orig_left"
15 	verify_right="verify.$orig_right"
16 
17         if [ -n "$diff_opts" ]; then
18                 if ! cmp "$got_diff" "$expected_diff" ; then
19                         echo "FAIL: $got_diff != $expected_diff"
20                         return 1
21                 fi
22         elif [ "x$diff_type" = "xunidiff" ]; then
23                 cp "$orig_left" "$verify_right"
24                 patch --quiet -u "$verify_right" "$the_diff"
25                 if ! cmp "$orig_right" "$verify_right" ; then
26                         echo "FAIL: $orig_right != $verify_right"
27                         return 1
28                 fi
29 
30                 cp "$orig_right" "$verify_left"
31                 patch --quiet -u -R "$verify_left" "$the_diff"
32                 if ! cmp "$orig_left" "$verify_left" ; then
33                         echo "FAIL: $orig_left != $verify_left"
34                         return 1
35                 fi
36         else
37                 tail -n +3 "$the_diff" | grep -v "^+" | sed 's/^.//' > "$verify_left"
38                 tail -n +3 "$the_diff" | grep -v "^-" | sed 's/^.//' > "$verify_right"
39 
40                 if ! cmp "$orig_left" "$verify_left" ; then
41                         echo "FAIL: $orig_left != $verify_left"
42                         return 1
43                 fi
44                 if ! cmp "$orig_right" "$verify_right" ; then
45                         echo "FAIL: $orig_right != $verify_right"
46                         return 1
47                 fi
48         fi
49         echo "OK: $diff_prog $orig_left $orig_right"
50         return 0
51 }
52 
53 for left in test*.left* ; do
54         right="$(echo "$left" | sed 's/\.left/\.right/')"
55         diff_opts="$(echo "$left" | sed 's/test[0-9]*\.left\([-a-zA-Z]*\).txt/\1/')"
56         expected_diff="$(echo "$left" | sed 's/test\([-0-9a-zA-Z]*\)\..*/expect\1.diff/')"
57         got_diff="verify.$expected_diff"
58 
59         "$diff_prog" $diff_opts "$left" "$right" > "$got_diff"
60 
61         set -e
62 	verify_diff_script "$left" "$right" "$got_diff" "$diff_opts" "$expected_diff"
63         set +e
64 done