Revert "t0081 (line-buffer): add buffering tests"

This (morally) reverts commit d280f68313eecb8b3838c70641a246382d5e5343,
which added some tests that are a pain to maintain and are not likely
to find bugs in git.

Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>

diff --git a/t/t0081-line-buffer.sh b/t/t0081-line-buffer.sh
index 5067d1e15b566721c1a3ae79052cbcb023a03656..bd83ed371acb5075b2b3cbb7866d36aa4bd48519 100755 (executable)
--- a/t/t0081-line-buffer.sh
+++ b/t/t0081-line-buffer.sh
@@ -2,74 +2,14 @@
 
 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 &&
@@ -79,21 +19,6 @@ test_expect_success 'hello world' '
        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 &&
@@ -104,33 +29,6 @@ test_expect_success '0-length read, send along greeting' '
        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 &&