From: Yann Collet <cyan@fb.com>
Date: Thu, 29 Mar 2018 19:07:28 +0000 (-0600)
Subject: added ovlog tests
X-Git-Tag: v1.3.5~3^2~90^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1079%2Fhead;p=thirdparty%2Fzstd.git

added ovlog tests

check that setting ovlog has a direct impact on compression ratio
(hence is not silently ignored)
---

diff --git a/tests/playTests.sh b/tests/playTests.sh
index 41d8263b6..494480226 100755
--- a/tests/playTests.sh
+++ b/tests/playTests.sh
@@ -650,6 +650,25 @@ then
 
     $ECHO "\n===>  zstdmt long distance matching round-trip tests "
     roundTripTest -g8M "3 --long=24 -T2"
+
+    $ECHO "\n===>  ovLog tests "
+    ./datagen -g2MB > tmp
+    refSize=$($ZSTD tmp -6 -c --zstd=wlog=18         | wc -c)
+    ov9Size=$($ZSTD tmp -6 -c --zstd=wlog=18,ovlog=9 | wc -c)
+    ov0Size=$($ZSTD tmp -6 -c --zstd=wlog=18,ovlog=0 | wc -c)
+    if [ $refSize -eq $ov9Size ]; then
+        echo ov9Size should be different from refSize
+        exit 1
+    fi
+    if [ $refSize -eq $ov0Size ]; then
+        echo ov0Size should be different from refSize
+        exit 1
+    fi
+    if [ $ov9Size -ge $ov0Size ]; then
+        echo ov9Size=$ov9Size should be smaller than ov0Size=$ov0Size
+        exit 1
+    fi
+
 else
     $ECHO "\n===>  no multithreading, skipping zstdmt tests "
 fi