diff options
Diffstat (limited to 'test/line.cc')
| -rw-r--r-- | test/line.cc | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/test/line.cc b/test/line.cc new file mode 100644 index 0000000..0f90723 --- /dev/null +++ b/test/line.cc @@ -0,0 +1,184 @@ +#include <gtest/gtest.h> + +#include "io_test_helper.hh" +#include "line.hh" + +#include <cstddef> +#include <limits> +#include <utility> + +TEST(line, empty) { + auto reader = line::open(io::memory("")); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(0, reader->number()); +} + +TEST(line, one_line) { + auto reader = line::open(io::memory("foo")); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo", line.value()); + EXPECT_EQ(1, reader->number()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(1, reader->number()); +} + +TEST(line, many_lines) { + auto reader = line::open(io::memory("foo\nbar\nfoobar\n")); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo", line.value()); + EXPECT_EQ(1, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("bar", line.value()); + EXPECT_EQ(2, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foobar", line.value()); + EXPECT_EQ(3, reader->number()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(3, reader->number()); +} + +TEST(line, many_lines_mixed) { + auto reader = line::open(io::memory("foo\r\nbar\rfoobar\n")); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo", line.value()); + EXPECT_EQ(1, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("bar", line.value()); + EXPECT_EQ(2, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foobar", line.value()); + EXPECT_EQ(3, reader->number()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(3, reader->number()); +} + +TEST(line, empty_line) { + auto reader = line::open(io::memory("\n")); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("", line.value()); + EXPECT_EQ(1, reader->number()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(1, reader->number()); +} + +TEST(line, max_line) { + auto reader = line::open(io::memory("012345678901234567890123456789"), 10); + EXPECT_EQ(0, reader->number()); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("0123456789", line.value()); + EXPECT_EQ(1, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("0123456789", line.value()); + EXPECT_EQ(2, reader->number()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("0123456789", line.value()); + EXPECT_EQ(3, reader->number()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); + EXPECT_EQ(3, reader->number()); +} + +TEST(line, read_error) { + auto reader = line::open( + io_make_breaking(io::memory("foo bar fum\nfim zam"), /* offset */ 5)); + auto line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_FALSE(line.error().eof); + EXPECT_EQ(io::ReadError::Error, line.error().io_error.value()); +} + +TEST(line, read_error_newline) { + auto reader = line::open( + io_make_breaking(io::memory("foo bar\r\nfim zam"), /* offset */ 8)); + auto line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_FALSE(line.error().eof); + EXPECT_EQ(io::ReadError::Error, line.error().io_error.value()); +} + +TEST(line, blocky) { + auto reader = line::open( + io_make_max_block(io::memory("foo bar\r\nfim zam"), + /* max_block_size */ 1)); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo bar", line.value()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("fim zam", line.value()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); +} + +TEST(line, blocky_newline) { + auto reader = line::open( + io_make_max_block(io::memory("foo bar\r\nfim zam"), + /* max_block_size */ 8)); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo bar", line.value()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("fim zam", line.value()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); +} + +TEST(line, eof_newline) { + auto reader = line::open(io::memory("foo bar\r")); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo bar", line.value()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); +} + +TEST(line, max_newline) { + auto reader = line::open(io::memory("foo bar\r"), 6); + auto line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("foo ba", line.value()); + line = reader->read(); + ASSERT_TRUE(line.has_value()); + EXPECT_EQ("r", line.value()); + line = reader->read(); + ASSERT_FALSE(line.has_value()); + EXPECT_TRUE(line.error().eof); +} + +TEST(line, max_line_overflow) { + EXPECT_DEATH_IF_SUPPORTED({ + std::ignore = line::open(io::memory(""), + std::numeric_limits<size_t>::max()); + }, ""); +} |