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