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#include <gtest/gtest.h>
#include <libaff4.h>
#include <unistd.h>
class StreamTest : public ::testing::Test {
protected:
void test_Stream(AFF4Stream &stream) {
EXPECT_EQ(0, stream.Tell());
EXPECT_EQ(0, stream.Size());
stream.Write("hello world");
EXPECT_EQ(11, stream.Tell());
stream.Seek(0, 0);
EXPECT_EQ(0, stream.Tell());
EXPECT_STREQ("hello",
stream.Read(5).c_str());
EXPECT_EQ(5, stream.Tell());
stream.Seek(0, 0);
EXPECT_STREQ("hello world",
stream.Read(1000).c_str());
EXPECT_EQ(11, stream.Tell());
stream.Seek(-5, 2);
EXPECT_EQ(6, stream.Tell());
EXPECT_STREQ("world",
stream.Read(1000).c_str());
stream.Seek(-5, 2);
EXPECT_EQ(6, stream.Tell());
stream.Write("Cruel world");
stream.Seek(0, 0);
EXPECT_EQ(0, stream.Tell());
EXPECT_STREQ("hello Cruel world",
stream.Read(1000).c_str());
EXPECT_EQ(17, stream.Tell());
stream.Seek(0, 0);
EXPECT_STREQ("he",
stream.Read(2).c_str());
stream.sprintf("I have %d arms and %#x legs.", 2, 1025);
EXPECT_EQ(31, stream.Tell());
stream.Seek(0, 0);
EXPECT_STREQ("heI have 2 arms and 0x401 legs.",
stream.Read(1000).c_str());
};
};
TEST_F(StreamTest, StringIOTest) {
unique_ptr<AFF4Stream> stream = StringIO::NewStringIO();
test_Stream(*stream);
};
class FileBackedStreamTest: public StreamTest {
protected:
string filename = "/tmp/test_filename.bin";
// Remove the file on teardown.
virtual void TearDown() {
unlink(filename.c_str());
};
};
TEST_F(FileBackedStreamTest, FileBackedObjectIOTest) {
MemoryDataStore resolver;
URN filename_urn = URN::NewURNFromFilename(filename);
// We are allowed to write on the output filename.
resolver.Set(filename_urn, AFF4_STREAM_WRITE_MODE,
new XSDString("truncate"));
AFF4ScopedPtr<AFF4Stream> file = resolver.AFF4FactoryOpen<AFF4Stream>(
filename_urn);
EXPECT_NE((AFF4Stream *)NULL, file.get());
test_Stream(*file);
};
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