test_description="Test the svn importer's input handling routines.
-These tests exercise the line_buffer library, but their real purpose
-is to check the assumptions that library makes of the platform's input
-routines. Processes engaged in bi-directional communication would
-hang if fread or fgets is too greedy.
+These tests provide some simple checks that the line_buffer API
+behaves as advertised.
While at it, check that input of newlines and null bytes are handled
correctly.
"
. ./test-lib.sh
-test -n "$GIT_REMOTE_SVN_TEST_BIG_FILES" && test_set_prereq EXPENSIVE
-
-generate_tens_of_lines () {
- tens=$1 &&
- line=$2 &&
-
- i=0 &&
- while test $i -lt "$tens"
- do
- for j in a b c d e f g h i j
- do
- echo "$line"
- done &&
- : $((i = $i + 1)) ||
- return
- done
-}
-
-long_read_test () {
- : each line is 10 bytes, including newline &&
- line=abcdefghi &&
- echo "$line" >expect &&
-
- if ! test_declared_prereq PIPE
- then
- echo >&4 "long_read_test: need to declare PIPE prerequisite"
- return 127
- fi &&
- tens_of_lines=$(($1 / 100 + 1)) &&
- lines=$(($tens_of_lines * 10)) &&
- readsize=$((($lines - 1) * 10 + 3)) &&
- copysize=7 &&
- rm -f input &&
- mkfifo input &&
- {
- (
- generate_tens_of_lines $tens_of_lines "$line" &&
- exec sleep 100
- ) >input &
- } &&
- test-line-buffer input <<-EOF >output &&
- binary $readsize
- copy $copysize
- EOF
- kill $! &&
- test_line_count = $lines output &&
- tail -n 1 <output >actual &&
- test_cmp expect actual
-}
-
-test_expect_success 'setup: have pipes?' '
- rm -f frob &&
- if mkfifo frob
- then
- test_set_prereq PIPE
- fi
-'
-
test_expect_success 'hello world' '
echo ">HELLO" >expect &&
test-line-buffer <<-\EOF >actual &&
test_cmp expect actual
'
-test_expect_success PIPE '0-length read, no input available' '
- printf ">" >expect &&
- rm -f input &&
- mkfifo input &&
- {
- sleep 100 >input &
- } &&
- test-line-buffer input <<-\EOF >actual &&
- binary 0
- copy 0
- EOF
- kill $! &&
- test_cmp expect actual
-'
-
test_expect_success '0-length read, send along greeting' '
echo ">HELLO" >expect &&
test-line-buffer <<-\EOF >actual &&
test_cmp expect actual
'
-test_expect_success PIPE '1-byte read, no input available' '
- printf ">%s" ab >expect &&
- rm -f input &&
- mkfifo input &&
- {
- (
- printf "%s" a &&
- printf "%s" b &&
- exec sleep 100
- ) >input &
- } &&
- test-line-buffer input <<-\EOF >actual &&
- binary 1
- copy 1
- EOF
- kill $! &&
- test_cmp expect actual
-'
-
-test_expect_success PIPE 'long read (around 8192 bytes)' '
- long_read_test 8192
-'
-
-test_expect_success PIPE,EXPENSIVE 'longer read (around 65536 bytes)' '
- long_read_test 65536
-'
-
test_expect_success 'read from file descriptor' '
rm -f input &&
echo hello >expect &&