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