From cc264fb58b9da76c5bbb657613c26f6cd99f6afe Mon Sep 17 00:00:00 2001
From: Bart Schaefer <schaefer@zsh.org>
Date: Sun, 1 May 2022 11:56:28 -0700
Subject: 50159: Tests for sysread, including 50101 regression

---
 ChangeLog           |  4 ++++
 Test/V14system.ztst | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index b1f7f643d..f5da4218d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2022-05-01  Bart Schaefer  <schaefer@zsh.org>
+
+	* 50159: Test/V14system.ztst: Tests for sysread
+
 2022-04-30  Bart Schaefer  <schaefer@zsh.org>
 
 	* unposted: Etc/BUGS: remove debian #924736, fixed since 5.8 by
diff --git a/Test/V14system.ztst b/Test/V14system.ztst
index ffdb730a4..81253324f 100644
--- a/Test/V14system.ztst
+++ b/Test/V14system.ztst
@@ -147,3 +147,69 @@ F:This timing test might fail due to process scheduling issues unrelated to zsh.
 0:zsystem flock successful wait test, fractional seconds
 ?elapsed time seems OK
 F:This timing test might fail due to process scheduling issues unrelated to zsh.
+
+  unset chars REPLY
+  print -n a few words | sysread -i 0 -c chars
+  ret=$?
+  print -- $chars x${REPLY}x
+  return ret
+0:sysread default
+>11 xa few wordsx
+
+  unset chars REPLY
+  sysread -i 9 -c chars
+  ret=$?
+  print -- $chars x${REPLY}x
+  return ret
+2:sysread read error
+>-1 xx
+
+  REPLY="say nothing"
+  sysread -i 9 -c chars
+  ret=$?
+  print -- $chars x${REPLY}x
+  return ret
+2f:sysread read error
+F:The value of $REPLY should be empty or unset when nothing is read?
+>-1 xx
+
+  unset chars REPLY
+  print -n a few words | sysread -i 0 -o 9 -c chars
+  ret=$?
+  print -- $chars x${REPLY}x
+  return ret
+3:sysread write error
+>11 xx
+
+  sleep 3 | sysread -i 0 -t 1
+4:sysread timeout
+
+  sysread -i 0 </dev/null
+5:sysread end of file
+
+  unset chars oration
+  print -n a few words | sysread -i 0 -o 9 -c chars oration
+  ret=$?
+  print $chars x${oration}x $REPLY
+  return ret
+3:regression test: sysread write error with both -o and a parameter
+>11 xa few wordsx
+
+  unset chars oration
+  print a few words | sysread -i 0 -o 1 -c chars oration
+  ret=$?
+  print -- $chars x${oration}x $REPLY
+  return ret
+0:regression test: sucessful sysread with both -o and a parameter
+>a few words
+>12 xx
+
+  oration="do not say these words"
+  print a few words | sysread -i 0 -o 1 -c chars oration
+  ret=$?
+  print -- $chars x${oration}x $REPLY
+  return ret
+0f:successful sysread with both -o and a parameter
+F:The value of $oration should be empty or unset when everything is written?
+>a few words
+>12 xx
-- 
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