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Add test.

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This commit is contained in:
Victor Zverovich 2014-05-06 09:17:53 -07:00
parent eb09e58697
commit 6a5f27bed2
1 changed files with 22 additions and 0 deletions
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22
test/gtest-extra-test.cc
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@ -504,6 +504,28 @@ TEST(FileTest, Read) {
EXPECT_READ(f, "language: cpp");
}
#ifdef _WIN32
// The count argument to the read function is unsigned on Windows, so check
// if integer overflow is handled properly.
TEST(FileTest, ReadCountOverflow) {
if (sizeof(std::size_t) == sizeof(unsigned))
return;
File read_end, write_end;
File::pipe(read_end, write_end);
Write(write_end, "test");
write_end.close();
char buffer[4];
std::size_t offset = 0;
std::size_t count = std::numeric_limits<unsigned>::max() + std::size_t(1);
std::streamsize n = 0;
do {
n = read_end.read(buffer + offset, count);
offset += n;
} while (n != 0);
EXPECT_EQ("test", std::string(buffer, offset));
}
#endif
TEST(FileTest, ReadError) {
File read_end, write_end;
File::pipe(read_end, write_end);