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test/pty: last read in TermiosICANONEOF returns 0 on new linux kernels

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[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from PtyTest
[ RUN      ] PtyTest.TermiosICANONEOF
test/syscalls/linux/pty.cc:464: Failure
Value of: ReadFd(fd.get(), &c, 1)
Expected: -1 (failure), with errno PosixError(errno=11 Resource temporarily unavailable)
  Actual: 0 (of type long)
[  FAILED  ] PtyTest.TermiosICANONEOF (20018 ms)
[----------] 1 test from PtyTest (20018 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test suite ran. (20018 ms total)
[  PASSED  ] 0 tests.
[  FAILED  ] 1 test, listed below:
[  FAILED  ] PtyTest.TermiosICANONEOF

PiperOrigin-RevId: 452799870
This commit is contained in:
Andrei Vagin
2022-06-03 11:04:15 -07:00
committed by gVisor bot
parent 0968254ce7
commit 3e00c61305
1 changed files with 4 additions and 1 deletions
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test/syscalls/linux/pty.cc
+4 -1
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@@ -1120,7 +1120,10 @@ TEST_F(PtyTest, TermiosICANONEOF) {
ExpectReadable(replica_, sizeof(input), buf);
EXPECT_STREQ(buf, "abc");
ExpectFinished(replica_);
// New Linux kernels can return zero.
EXPECT_THAT(
ReadFd(replica_.get(), buf, 1),
AnyOf(SyscallSucceedsWithValue(0), SyscallFailsWithErrno(EAGAIN)));
}
// ICANON limits us to 4096 bytes including a terminating character. Anything