guix/gnu/packages/patches/zstd-fix-stdin-list-test.patch

From 8e7bdc18d62632adcee029b2f8f5013d11549dd7 Mon Sep 17 00:00:00 2001
From: "W. Felix Handte" <w@felixhandte.com>
Date: Fri, 29 Jun 2018 16:31:22 -0400
Subject: [PATCH] Fix Tests of `--list` Behavior with `stdin`

---
 tests/playTests.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tests/playTests.sh b/tests/playTests.sh
index 09a7377f2..aa5535d59 100755
--- a/tests/playTests.sh
+++ b/tests/playTests.sh
@@ -731,8 +731,14 @@ $ECHO "\n===>  zstd --list/-l error detection tests "
 ! $ZSTD -lv tmp1*
 ! $ZSTD --list -v tmp2 tmp12.zst
 
-$ECHO "\n===>  zstd --list/-l exits 1 when stdin is piped in"
-! echo "piped STDIN" | $ZSTD --list
+$ECHO "\n===>  zstd --list/-l errors when presented with stdin / no files"
+! $ZSTD -l
+! $ZSTD -l -
+! $ZSTD -l < tmp1.zst
+! $ZSTD -l - < tmp1.zst
+! $ZSTD -l - tmp1.zst
+! $ZSTD -l - tmp1.zst < tmp1.zst
+$ZSTD -l tmp1.zst < tmp1.zst # but doesn't error just because stdin is not a tty
 
 $ECHO "\n===>  zstd --list/-l test with null files "
 ./datagen -g0 > tmp5