From 3c94cc20b686636ece847753919c82ffc9aade41 Mon Sep 17 00:00:00 2001
From: sam <sam@Pondermatic.(none)>
Date: Wed, 30 Mar 2011 09:31:45 -0700
Subject: [PATCH] test/bufferlist.cc: Added append tests

Tests appending many randomly sized chunks many of which are size zero.

Signed-off-by: Samuel Just <samuel.just@dreamhost.com>
---
 src/Makefile.am        |  2 +-
 src/test/bufferlist.cc | 43 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/src/Makefile.am b/src/Makefile.am
index a5bd5c99e08de..b1c5e74ab7aa8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -404,7 +404,7 @@ unittest_librados_CXXFLAGS = ${AM_CXXFLAGS} ${UNITTEST_CXXFLAGS}
 check_PROGRAMS += unittest_librados
 
 unittest_bufferlist_SOURCES = test/bufferlist.cc
-unittest_bufferlist_LDADD = ${UNITTEST_LDADD}
+unittest_bufferlist_LDADD = ${UNITTEST_LDADD} libcommon.a
 unittest_bufferlist_CXXFLAGS = ${AM_CXXFLAGS} ${UNITTEST_CXXFLAGS}
 check_PROGRAMS += unittest_bufferlist
 
diff --git a/src/test/bufferlist.cc b/src/test/bufferlist.cc
index 15375eee8b640..e539b2297d4c9 100644
--- a/src/test/bufferlist.cc
+++ b/src/test/bufferlist.cc
@@ -2,6 +2,9 @@
 #include "include/encoding.h"
 
 #include "gtest/gtest.h"
+#include "stdlib.h"
+
+#define MAX_TEST 1000000
 
 
 TEST(BufferList, EmptyAppend) {
@@ -10,3 +13,43 @@ TEST(BufferList, EmptyAppend) {
 	bl.push_back(ptr);
 	ASSERT_EQ(bl.begin().end(), 1);
 }
+
+TEST(BufferList, TestPtrAppend) {
+	bufferlist bl;
+	char correct[MAX_TEST];
+	int curpos = 0;
+	int length = random() % 5 > 0 ? random() % 1000 : 0;
+	while (curpos + length < MAX_TEST) {
+		if (!length) {
+			bufferptr ptr;
+			bl.push_back(ptr);
+		} else {
+			char *current = correct + curpos;
+			for (int i = 0; i < length; ++i) {
+				char next = random() % 255;
+				correct[curpos++] = next;
+			}
+			bufferptr ptr(current, length);
+			bl.append(ptr);
+		}
+		length = random() % 5 > 0 ? random() % 1000 : 0;
+	}
+	ASSERT_EQ(memcmp(bl.c_str(), correct, curpos), 0);
+}
+
+TEST(BufferList, TestDirectAppend) {
+	bufferlist bl;
+	char correct[MAX_TEST];
+	int curpos = 0;
+	int length = random() % 5 > 0 ? random() % 1000 : 0;
+	while (curpos + length < MAX_TEST) {
+		char *current = correct + curpos;
+		for (int i = 0; i < length; ++i) {
+			char next = random() % 255;
+			correct[curpos++] = next;
+		}
+		bl.append(current, length);
+		length = random() % 5 > 0 ? random() % 1000 : 0;
+	}
+	ASSERT_EQ(memcmp(bl.c_str(), correct, curpos), 0);
+}
-- 
2.39.5