EXPECT_EQUAL
EXPECT_EQUAL(ch, test_string[i]);
EXPECT_EQUAL(io.eof, false);
EXPECT_EQUAL(ch, -1);
EXPECT_EQUAL(io.eof, true);
EXPECT_EQUAL(ch, ch1);
EXPECT_EQUAL(ch, ch2);
EXPECT_EQUAL(ch, ch3);
EXPECT_EQUAL(io.eof, end_eof);
EXPECT_EQUAL(ch, ch1);
EXPECT_EQUAL(ch, ch2);
EXPECT_EQUAL(ch, ch3);
EXPECT_EQUAL(io.eof, end_eof);
EXPECT_EQUAL((int)io__getline(&io, &line, &line_len), 513);
EXPECT_EQUAL((int)strlen(line), 513);
EXPECT_EQUAL(line[i], 'a');
EXPECT_EQUAL(line[512], '\n');
EXPECT_EQUAL((int)io__getline(&io, &line, &line_len), 510);
EXPECT_EQUAL(line[i], 'b');