tequilaOS/platform_bionic
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Improve <stdio_ext.h> testing.

Browse source 
I almost fixed a non-bug. Add a test to prevent me from doing that.

Change-Id: I4a1dc13e603a7a377bdaee2e78132015087f7107
This commit is contained in:
Elliott Hughes 2015-01-16 16:40:55 -08:00
parent 5a388898cf
commit df8f1a42d1
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
tests/stdio_ext_test.cpp
View file

@ -34,7 +34,13 @@
TEST(stdio_ext, __fbufsize) {
FILE* fp = fopen("/proc/version", "r");
// Initially, there's no buffer in case the first thing you do is disable buffering.
ASSERT_EQ(0U, __fbufsize(fp));
// A read forces a buffer to be created.
char buf[128];
fgets(buf, sizeof(buf), fp);
ASSERT_EQ(1024U, __fbufsize(fp));
ASSERT_EQ(0, setvbuf(fp, buf, _IOFBF, 1));
ASSERT_EQ(1U, __fbufsize(fp));