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Add 1 MiB ASCII PipeCapture test (#777973)

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Add test sending 1 MiB of ASCII test into PipeCapture to read.  This
requires multiple reads and rewites through the pipe.

This is as much a check of the threading in the PipeCaptureTest class as
it is of PipeCapture itself.  This is because a single thread might
block reading from a pipe waiting for itself to write to the pipe.
Deadlock.  Hence the requirement to use a separate thread for reading
and writing.

Bug 777973 - Segmentation fault on bad disk
This commit is contained in:
Mike Fleetwood 2017-05-21 10:52:01 +01:00 committed by Curtis Gedak
parent d90702d526
commit eb2d571a6c
1 changed files with 21 additions and 0 deletions
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21
tests/test_PipeCapture.cc
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@ -37,6 +37,15 @@
namespace GParted
{
// Repeat a C++ string count times, where count >= 0.
static std::string repeat( const std::string & str, size_t count )
{
std::string result = "";
while ( count -- > 0 )
result += str;
return result;
}
// Explicit test fixture class with common variables and methods used in each test.
// Reference:
// Google Test, Primer, Test Fixtures: Using the Same Data Configuration for Multiple Tests
@ -159,6 +168,18 @@ TEST_F( PipeCaptureTest, ShortASCIIText )
EXPECT_TRUE( eof_signalled );
}
TEST_F( PipeCaptureTest, LongASCIIText )
{
// Test capturing 1 MiB of ASCII text (requiring multiple reads in PipeCapture).
inputstr = repeat( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_\n", 16384 );
PipeCapture pc( pipefds[ReaderFD], capturedstr );
pc.signal_eof.connect( sigc::mem_fun( *this, &PipeCaptureTest::eof_callback ) );
pc.connect_signal();
run_writer_thread();
EXPECT_STREQ( inputstr.c_str(), capturedstr.c_str() );
EXPECT_TRUE( eof_signalled );
}
} // namespace GParted
// Custom Google Test main() which also initialises the Glib threading system for