From e231b70d006343b0f6fab51fe94aeb179b032bd6 Mon Sep 17 00:00:00 2001
From: longwei <longwei27@huawei.com>
Date: Thu, 2 Mar 2023 13:16:51 +0000
Subject: [PATCH] fix xts for zlib gzungetc

Change-Id: Ie7514a36b88eb3f519441ff6a8b1207e1de3c901
Signed-off-by: longwei <longwei27@huawei.com>
---
 bundlemanager/zlib/actszlibtest/ActsZlibTest.cpp | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/bundlemanager/zlib/actszlibtest/ActsZlibTest.cpp b/bundlemanager/zlib/actszlibtest/ActsZlibTest.cpp
index 31b8a14cf..b2fc2bb1e 100644
--- a/bundlemanager/zlib/actszlibtest/ActsZlibTest.cpp
+++ b/bundlemanager/zlib/actszlibtest/ActsZlibTest.cpp
@@ -1267,13 +1267,12 @@ HWTEST_F(ActsZlibTest, ActsZlibTestGzUnGetc, Function | MediumTest | Level2)
 #else
     std::lock_guard<std::mutex> lock(file_mutex);
     gzFile file;
-    file = gzopen(TESTFILE, "wb");
-    ASSERT_TRUE(file != NULL);
-    gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
-    gzclose(file);
     file = gzopen(TESTFILE, "rb");
     ASSERT_TRUE(file != NULL);
-    ASSERT_FALSE(gzungetc(' ', file) != ' ');
+    ASSERT_FALSE(gzungetc('a', file) != 'a');
+    char sz_read[5] = {0};
+    gzread(file, sz_read, 1);
+    ASSERT_TRUE(sz_read[0] == 'a');
     gzclose(file);
 #endif
 }
-- 
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