1 #!/bin/sh
2 
3 diff_prog="../diff/obj/diff"
4 if [ ! -x $diff_prog ]; then
5 	diff_prog="../diff/diff"
6 fi
7 
8 # At present, test015 only passes with GNU patch.
9 # Larry's patch has a bug with empty files in combination with -R...
10 if command -v gpatch >/dev/null 2>&1; then
11 	patch_prog="gpatch"
12 else
13 	patch_prog="patch"
14 fi
15 
16 diff_type=unidiff
17 
18 rm -f errors
19 
20 verify_diff_script() {
21 	orig_left="$1"
22 	orig_right="$2"
23 	the_diff="$3"
24 	expected_diff="$4"
25 	diff_opts="$5"
26 
27 	if echo -- $diff_opts | grep -q -- 'w'; then
28 		ignore_whitespace="true"
29 	else
30 		ignore_whitespace=""
31 	fi
32 
33 	if echo -- $diff_opts | grep -q -- 'e'; then
34 		is_edscript="true"
35 	else
36 		is_edscript=""
37 	fi
38 	
39 	verify_left="verify.$orig_left"
40 	verify_right="verify.$orig_right"
41 
42         if [ -e "$expected_diff" ]; then
43 		echo cmp "$got_diff" "$expected_diff"
44                 if ! cmp "$got_diff" "$expected_diff" ; then
45                         echo "FAIL: $got_diff != $expected_diff" | tee -a errors
46                         return 1
47                 fi
48 	fi
49         if [ -z "$ignore_whitespace" -a -z "$is_edscript" -a "x$diff_type" = "xunidiff" ]; then
50                 cp "$orig_left" "$verify_right"
51                 $patch_prog --quiet -u "$verify_right" "$the_diff"
52                 if ! cmp "$orig_right" "$verify_right" ; then
53                         echo "FAIL: $orig_right != $verify_right" | tee -a errors
54                         return 1
55                 fi
56 
57                 cp "$orig_right" "$verify_left"
58                 $patch_prog --quiet -u -R "$verify_left" "$the_diff"
59                 if ! cmp "$orig_left" "$verify_left" ; then
60                         echo "FAIL: $orig_left != $verify_left" | tee -a errors
61                         return 1
62                 fi
63         elif [ -z "$ignore_whitespace" -a -z "$is_edscript" ]; then
64                 tail -n +3 "$the_diff" | grep -v "^+" | sed 's/^.//' > "$verify_left"
65                 tail -n +3 "$the_diff" | grep -v "^-" | sed 's/^.//' > "$verify_right"
66 
67                 if ! cmp "$orig_left" "$verify_left" ; then
68                         echo "FAIL: $orig_left != $verify_left" | tee -a errors
69                         return 1
70                 fi
71                 if ! cmp "$orig_right" "$verify_right" ; then
72                         echo "FAIL: $orig_right != $verify_right" | tee -a errors
73                         return 1
74                 fi
75         fi
76         echo "OK: $diff_prog $orig_left $orig_right"
77         return 0
78 }
79 
80 for left in test*.left* ; do
81         right="$(echo "$left" | sed 's/\.left/\.right/')"
82         diff_opts="$(echo "$left" | sed 's/test[0-9]*\.left\([-a-zA-Z0-9]*\).txt/\1/')"
83         expected_diff="$(echo "$left" | sed 's/test\([-0-9a-zA-Z]*\)\..*/expect\1.diff/')"
84         got_diff="verify.$expected_diff"
85 
86         "$diff_prog" $diff_opts "$left" "$right" > "$got_diff"
87 
88 	verify_diff_script "$left" "$right" "$got_diff" "$expected_diff" "$diff_opts"
89 done
90 
91 # XXX required to keep GNU make completely silent during 'make regress'
92 if make -h 2>/dev/null |  grep -q no-print-directory; then
93 	make_opts="--no-print-directory"
94 fi
95 for ctest in *_test.c ; do
96 	prog="$(echo "$ctest" | sed 's/.c//')"
97 	expect_output="expect.${prog}"
98 	prog_output="verify.$expect_output"
99 	make $make_opts -s -C "$prog" regress > "$prog_output"
100 	if ! cmp "$prog_output" "$expect_output" ; then
101 		echo "FAIL: $prog_output != $expect_output" | tee -a errors
102 	else
103 		echo "OK: $prog"
104 	fi
105 done
106 
107 echo
108 if [ -f errors ]; then
109 	echo "Tests failed:"
110 	cat errors
111 	exit 1
112 else
113 	echo "All tests OK"
114 	echo
115 fi